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What’s the best tourist SIM card for Japan (2024 guide)

By: Author Kris

Posted on Last updated: August 18, 2024

If you’re headed to Japan and want to stay connected while exploring, we’ve got you covered with the top tourist SIM cards. No need to worry about losing touch with your loved ones or missing out on those Insta-worthy moments.

We’ve spent a lot of time in Japan and traveled all over the country. The first trips we would very often come across a “Handy” phone in our hotel room – a phone we could use throughout our stay. But those days are long gone now.

Nowadays, if you want to stay connected, you better have a local SIM card if you don’t want to rely on public hotspots. And trust me, from experience, we can assure you that a local SIM card is still highly recommended.

There are several spots offering free internet, mainly in the larger cities, and handy apps to connect to WiFi hotspots for free. We share more information on this app in this article. Still, there are still plenty of places that require a data subscription for internet usage.

Whether you prefer the convenience of ordering physical SIMs online and picking them up at the airport or exploring the innovative world of eSIMs, there are numerous ways to ensure you stay connected on your journey.

Keep scrolling for the best options!

This post contains affiliate links. If you click one of them, we may receive a small commission (for which we are deeply grateful) at no extra cost to you.

Table of Contents

In a hurry? Our picks for the best Japanese SIM cards

Here are our top picks :

• Mobal Data SIMs : These SIMs are great for data-hungry users. Mobal has unlimited data plans with a very reasonable fair usage policy. You don’t have to worry about data speed and can be online the whole day.
• Mobal Voice + Data SIMs : If you need a Japanese Phone number to make voice calls or to use some specific Japanese apps.
• Sakura Data SIMs : Sakura SIMs, ordered through Klook, are the price-conscious option. They are cheaper than Mobal but have a stricter fair usage policy.
• Simcardgeek Esims : If your phone supports eSIMs this is the best and easiest way to go
• Airalo eSIMs : The cost-conscious option in the eSIM department for those who don’t need huge data packages.

Want more information on eSIMs? Skip to the eSIM section in this article . For a more extensive comparison of eSIMs, we would like to refer you to this article .

Japanese SIM cards

Japan Tourist SIM cards

Will you be in Japan for more than 3 months?

Mobal also has a long-term plan that does not require any paper contracts or other red tape.

Discover great apps for traveling to Japan. 

Japan Tourist SIM cards – The top choices

In this article, we discuss no less than 30 different Japan tourist SIM cards.  All of which have slightly different options.  It’s good to have a choice but with all these different options it is hard to see the forest for the trees.

We discuss all the details of the SIM cards further down in this article but here are our top choices:

For the occasional data user

Most SIM cards offer unlimited data but all providers have implemented a fair usage policy. If you consume more than what is covered by the fair usage policy your data speed will be reduced. Sakura Mobile cannot share the exact details of the fair usage policy, therefor we recommend them for occasional use. Their prices are very competitive but they cannot be used for video streaming or as a hot spot for your laptop.

If you just want to make sure that you can fall back on your data plan if you need it but you already know that you will only have to use it occasionally, these are your best options.

Short stays

At JPY ¥4,000 for 8 days the SIM cards provided by Sakura Mobile are reliable and very cheap. 

The SIM card offers unlimited high-speed data at 4G or 3G speeds.  You will find a very detailed document to check if your mobile is compatible with the local network. Sakura Mobile uses the NTT Docomo network in Japan, generally seen as the best network in the country.

Thanks to the detailed information you can buy this SIM with peace of mind, knowing that it will work once you are there. If you’re still unsure you can pay a supplement for compatibility insurance. With this insurance, you will receive a WiFi device in case the SIM does not work in your phone.

Alternatively, if your phone is incompatible (see our FAQ below) with the NTT Docomo network you can opt for a Mobal SIM that works on both the NTT Docomo and the Softbank network.

Click here for more information and to order your Sakura Mobile SIM card from Klook: Sakura Mobile Tourist SIM

Longer stays

If you are 2 of 3 weeks in japan.

For stays of 2 or 3 weeks , you’re in most cases also best off 16 or 21-day cards of Sakura Mobile that can be found on Klook.  At JPY ¥6,000 and JPY ¥6,500 they are the cheapest options that can be found for these durations.

Both SIMs offer unlimited high-speed data at 4G or 3G speeds.  4G is offered in major cities while the 3G is applicable in more rural areas. You will find a very detailed document to check if your mobile is compatible with the local network. Sakura Mobile uses the NTT Docomo network in Japan, generally seen as the best network in the country. It has a coverage of over 99%.

Once you have read through the detailed information you can buy this SIM with peace of mind, knowing that it will work once you are there.

If you’re still unsure you can pay a supplement for compatibility insurance. With this insurance, you will receive a WiFi device in case the SIM does not work in your phone.

Alternatively, if your phone is incompatible with the NTT Docomo network you can opt for a Mobal SIM that works on both the NTT Docomo and the Softbank network.

If you are longer than 24 days in Japan

If you will be in Japan longer than 24 days the 30-day card of Simcard GEEK that costs JPY ¥4,980 is a good buy.  The card comes with 7GB of high-speed data which should be sufficient to cover your needs.  This SIM card also connects to the NTT Docomo network which is generally recognized as Japan’s best network.

Simcard GEEK has a fair usage policy of 3GB/day.

Click here for more information and to order your SIMcard Geek SIM card: SIMcard Geek 30-day Tourist SIM

For the heavy data user

If you want to be online the whole day,  enjoy streaming music, or watch YouTube videos, you’re better off with the below SIM cards.  This may also be the case for those who will be sharing your data plan with friends or family members, maybe by means of a mobile WiFi device.

These SIMs also have a fair usage policy. In this case, however, you know the details of the policy and can therefore pay attention to it so that you are not faced with surprises.

Mobal offers SIM cards for 8 or 16 days with an unlimited data plan .  The cards have a fair usage policy which limits high-speed data to 3GB per day. 3GB is quite a lot, it will allow you to browse the internet for 36 hours, stream 600 songs, or watch 6 hours of standard definition video. 

Consuming this amount of data in one day would probably mean that not much time is left to see the many stunning sights Japan has to offer.

Click here for more information and to order your Mobal SIM card: Mobal Tourist SIM

Mobal has a SIM with an unlimited data plan for 31 days.   This card has a fair usage policy which limits high-speed data to 3GB per day. 3GB is a lot, in the previous paragraph we gave a small overview of what exactly you can do before you reach this threshold. 

If you go out and discover the city you will probably never consume that much data in one day and if you stay in your hotel you can use the WiFi provided by the hotel.

Japan SIM card for tourists – The details

Mobal is a company with a mission to help international travelers in Japan stay connected.

They’ve got offices in New York and the UK, so if you need any help, you can count on them to provide support in English.

Whether you’re staying for a short while or a long time, they’ve got data and data+voice options to keep you connected.

What we like most about them is that their website has all the info you need and they’re super quick at getting back to you when you reach out. When we once had a question we heard back from them within just two hours!

Size : Multi-size SIM cards.  The SIM can be adapted to fit in any mobile phone.

Network :  NTT Docomo, Softbank (3G & 4G)

Shipping :  Shipping is always free.  Data-only SIMs are shipped worldwide, for data+voice+text SIMs the list of countries is limited .  If shipping is not available to your country you can simply collect your SIM, for free, at one of the many pick-up locations.  There are locations at the airports and in Tokyo, Osaka, Kyoto and other major cities across Japan.

Below are the shipping times.

Japan: 1 – 3 business days USA and UK: 2 – 5 business days (expedited, next business day, shipping to these countries is available for a fee) Other countries: 8 – 15 business days

Shipping of voice+text sims requires that a copy of your ID is to be sent to Mobal at the time of your order.  All details about shipping and pick-up locations are extensively explained on the website .

Activation : No activation is required for these SIM cards. They’re ready to use. You just need to insert the SIM and set the APN.

Topping Up : Data only SIM’s have unlimited data at 4G LTE speed.  Data+voice SIM’s have 7GB of data at 4G speed per calendar month.  This can work in your favor.  If you arrive on 23 October, and stay until 7 November (as an example) you will get 14GB of data. 7GB in October and a new bundle of 7GB as soon as November starts.

If you want more data at high speed you can top-up your account in your online account.

Fair usage policy : If you use more than 3GB in one day your data speed may be reduced to 128 kbps for 24 to 48 hours.

Click here for more information and to order your Mobal SIM card: MOBAL Tourist SIM

Simcard Geek

Simcard Geek is a sister company of Mobal. Despite being powered by Mobal they have a different product range than what you can get from Mobal directly.

Network : NTT Docomo (3G & 4G)

Shipping :  Shipping is always free and is available to your home or your accommodation in Japan.  You can also choose to pick up your SIM at any of the postal offices at the airports in Japan.

SIM cards are sent out a few weeks before your pick-up date.  If you order your SIM long in advance it may not directly be shipped.

Japan: 2 – 5 business days (expedited shipping is available for a fee) USA: 2 – 5 business days   UK: 2 – 5 business days (expedited shipping is available for a fee) Australia: 3 – 7 business days   Other countries: 8 – 15 business days

Pick-up at the airport in the postal office: your SIM will be ready for pick-up after 2 to 5 business days or 2 to 3 business days with expedited shipping.  Make sure to verify that the postal office is open at your arrival time.

Activation :  The Japan SIM card is active upon receipt. To start using your SIM you simply can follow the instructions in the supplied English user guide to enter your APN settings.

Fair usage policy : Unlimited SIM cards have a fair usage policy.  If you use more than 3GB in one day your data speed may be reduced for 24 to 48 hours.

Click here for more information and to order your SIMcard Geek SIM card: Simcard Geek Tourist SIM

Sakura Mobile

Sakura Mobile is a reputable Japanese company that specializes in providing wireless services for visitors to Japan. They offer a range of affordable solutions to keep you connected throughout your stay.

They offer English support. Our support question was answered quickly, correctly, and in clearly understandable English.

One standout feature of Sakura Mobile is its compatibility insurance option. For an additional fee of 500 JPY, you can add this insurance to your purchase if you’re unsure whether their SIM will work with your device. This provides peace of mind and ensures that you’ll be able to stay connected without any hiccups.

In the unlikely event that you do encounter connectivity issues, Sakura Mobile offers a solution to those who took the insurance option – an upgrade to a Pocket Wi-Fi device at no extra cost. Alternatively, if you prefer, they can also provide a refund.

You have multiple options when it comes to ordering Sakura Mobile SIMs. You can either purchase them through Klook or directly on their corporate website . While the widest range of options is available on their own site, it’s worth noting that Klook offers certain exclusives not found on the corporate website.

On the other hand, when ordering directly, you can choose from more pick-up locations or have the SIM shipped to any address within Japan, including hotels.

Size : Multi-size SIM cards. Normal, Nano or Micro sim.

Network :  NTT Docomo (3G & 4G)

Shipping :  When you order through Klook the SIM can be collected at Terminal 3 (the International terminal) of Haneda International Airport or Terminal 1 and 2 of Narita International Airport. There is also a pick-up location in the arrival lobby of the Kansai airport.

If you order direct you can have the SIM delivered to hotels and Airbnb’s or collect it at the airport (Haneda, Narita, Kansai, Chubu, New Chitose) or at the office in Shinjuku.

Activation : No activation is required for these SIM cards. They’re ready to use. You just need to insert the SIM and set the APN.  You can download a document that explains how to do this.

Available direct :

Available through Klook :

Click here for more information and to order your Sakura Mobile SIM card:

Japan SIM cards with pick-up abroad (via Klook)

Here are a few extra options for those who live in Thailand, Malaysia, Hong Kong, Vietnam or India.

The below providers offer SIM cards that are either shipped to your home or that can be collected at your airport of departure.

Personally I would prefer to pick-up my SIM in Japan.  This has the advantage that somebody can assist you with setting it up and in the unlikely event that it doesn’t work, you would be able to look for an alternative or arrange a refund on the spot.

A pick-up abroad might, however, be a convenient option if you don’t want to lose time collecting your SIM upon arrival.

Buying a SIM card in Japan

Don’t worry if you’re already in Japan when you’re reading this. 

It’s also possible to buy a tourist SIM card in BIC Camera and Yodobashi Camera stores as well as at Narita and Haneda airports. 

You can even order one online and pick it up in several locations in downtown Tokyo, Kyoto, Osaka as well as other cities.

At the airport

If you want to start using your SIM card immediately you can buy one at the airport.

In the arrivals hall are sales counters from various operators and they will certainly be able to assist you in English. 

The drawback is that your choice will be more limited than in the shops in the city and you will be paying more, as is always the case at airports.

BIC camera also operates one small store in Narita and 2 in Haneda airport terminal 3 (see here and here ).  The sales points from the operators will likely be able to better assist you and give you advice while the stores from BIC camera will likely be cheaper.

In the cities

Another option to buy a SIM card in Japan would be to head to one of the BIC Camera or Yodobashi Camera stores in the cities. 

They sell various prepaid SIM cards for Japan tourists.  Usually, someone will be able to assist you in English but don’t expect the store personnel to speak the same level of English as they would at the airport. 

If you know what you need they will be able to point you to the correct package or confirm that what you picked is what you think it is. But you better speak some Japanese if you want to go into lengthy discussions about what would be the best option for you.

Finding these stores is easy.  Your hotel should be able to tell you the nearest one or you can use Google Maps.

A visit to a BIC Camera or Yodobashi Camera store is something that we absolutely recommend.  It is a fun experience during which you can marvel at all the electronic gadgets that are for sale.

But maybe you prefer to compare the various options from the comfort of your hotel room.  This is possible as well. 

You can order your SIM online with Mobal and pick it up directly at one of the many pick-up locations across Japan.

They have a very informative website and offer English support in case you have any additional questions. 

Japan eSIMs

Good news if you have a modern phone that supports embedded SIMs (eSIMs). You no longer have to worry about fiddling with your phone to replace the SIM card. All you have to do is click a link or scan a QR code.

Your SIM can stay in your device and you can switch between your own cellular plan and the Japanese plan. Super convenient and super easy.

Four providers offer eSIMs :

Simcard GEEK

Airalo esims.

Airalo eSIMs are available for a duration of 7 or 30 days and come with a data package ranging between 1 GB and 10 GB.

These are data-only contracts so voice calls are not supported.

• Size: eSIM card.
• Network: Softbank
• Duration: 7 or 30 days
• Pick-up: You will find all the information in the e-mail or the app.
• Activation: You can activate the eSIM when you want to start using it. You will need a WiFi connection to activate it.
• Topping Up: You can buy a new SIM if you’ve consumed all data of your existing eSIM.

Use our exclusive   WAPITI10OFF promo code to get an additional 10% off your Airalo eSIM.

Check all Airalo eSIM options: Airalo eSIM

The activation link is sent minutes after your purchase so you can still buy this SIM after you’ve arrived in Japan.

Check out this list if you’re not sure if these eSIMs are compatible with your phone.

The eSIMs connect to Japan’s Docomo network and is native to Japan. It connects to the Docomo network directly and is fast & reliable. You don’t need to enable data roaming for it to work.

The SIMs are data only, voice & text is not supported.

These are the various options:

Click here for more information about the Simcard GEEK eSIM options: Simcard GEEK eSIMs

In addition to the regular SIMs that we discussed above , Mobal also offers a selection of eSIMs.

Their eSIMs make use of the Docomo network and are native to Japan. All the options are data only, voice & text is not supported.

The data speed is 4G LTE. If the included data amount is fully used you can continue surfing until the SIM expires but at a slower speed of 200 kbps.

Click here for more information about the Mobal eSIM options: Mobal eSIMs

Frewie offers 2 eSIMS for use in Japan. When ordering a Frewie eSIM through Klook you will get a confirmation mail with a QR code to activate your eSIM. The mail is sent within 24 hours of your purchase.

The Frewie eSIM is a data-roaming SIM that connects to the Docomo network in Japan. It’s not a native Docomo eSIM, you will need to activate data roaming for it to work. Because it uses roaming it can be somewhat slower than the above eSIM options from Simcard GEEK.

One SIM works only in Japan, the other works in Japan & South Korea. Both are data only. The data package varies with the duration of the SIM.

Check prices and more info:

Frewie Japan SIM (5 – 30 days)

Frewie Japan & S-Korea SIM (14 or 30 days)

Japan SIM card for longer stays

For a short stay, you’re best off with a prepaid SIM card but if you’re staying in Japan for several months you could consider an unlimited long-term plan.  

Japanese providers are known to have a lot of red tape.   

A contract with them usually requires a lot of paperwork and a commitment of 2 years. For some, you even need to have a residence visa and/or a Japanese bank account.

Two providers offer long-term SIM plans :

Mobal offers an alternative to the red tape. 

Their long-term plan comes with no minimum duration, no activation, and no termination fee. 

The customer service team speaks English, is super-responsive, and you can easily order the SIM card online.

This is what you will get:

Japanese Phone number : A real Japanese phone number starting with 070, 080 or 090 (Softbank).  A voicemail service is included.

Free calls : All incoming calls and texts are free. Outgoing calls to other Softbank customers (including Mobal customers) are free from 1 AM to 9 PM.

Network : Your Mobal SIM will give you access to both the NTT Docomo network as well as the Softbank network so you’re sure to have the best reception whenever possible. The sim can be used in any unlocked device that supports the 3G or 4G Band 1 (2100MHz) frequency.

Shipping :  Shipping is always free but not available to all countries.  If shipping is not available to your country you can simply collect your sim for free, at one of the many pick-up locations.  There are locations at the airports and in Tokyo, Osaka, Kyoto and other major cities across Japan.

Shipping of voice+text sims requires that a copy of your ID is sent to Mobal at the time of your order. 

If you don’t want to share these details online you can pick up your package in Japan. All details about shipping and pick-up locations are extensively explained on the website .

Activation : To activate your SIM follow the activation instructions provided with your sim.  During business hours the activation should be processed within 2 hours.

Upgrade data plan : The data+voice SIM has 7GB of data at 4G speed per calendar month.  If you want more data at high speed you upgrade your plan in your online account.

Fair usage policy : If you use more than 7GB in one month your data speed will be reduced to 128kpbs for the remainder of the calendar month.

Click here for more information and to order your Mobal SIM card: MOBAL Long-term SIM

Sakura Mobile offers a similar long-term plan specifically aimed at overseas tourists who will spend a considerable time in Japan.

The plan has no minimum duration, it can be canceled at any time. There’s a one-time activation fee for the voice service. (only to be paid if you want to use the voice+text features) 

To order the package you will need to provide a copy of your current passport. A utility bill with your address on it is also required as proof of residence if you want the SIM to be shipped to your home.

Japanese Phone number : A Japanese phone from NTT Docomo.

Calls : All incoming calls and texts are free. With the Sakura Dail app or the special prefix number you can call at special discounted rates. ( check the rates )

Network : NTT Docomo.  There’s a dedicated page to see if your device is compatible.

Shipping :  The SIM card can be shipped to your home address if you provide a proof of residence.  This is not required.  You can also collect it at the airport or in the Sakura Mobile office.

Normally it takes 2 to 5 days for the package to arrive. You will receive a tracking code with which you can track the shipment.

Activation : No activation is required for the data plan. A one-time fee of 5,500 JPY is required to activate the voice service.

Data plan : You can choose from 2 plans.  A lite plan with 4GB data/month or a premium plan with 25GB data/month.   Both plans are unlimited which means you can continue browsing at slower speeds if you’ve consumed the included data.  It’s also possible to top-up your data plan online.

Fair usage policy : Unknown

Click here for more information and to order your Sakura Mobile Long-Term SIM card: Sakura Mobile Long-term SIM

FAQ About Tourist SIM Cards for Japan

Will your phone work in japan .

Before you buy a SIM you need to be sure that your phone is compatible with Japan’s telecom network. It needs to be able to operate on one of the bands used by the telecom operators in Japan. 

Check the technical specs of your phone to see what bands are supported and see if there’s a match with the bands that the operators are using. We’ve listed all of them in the following section.

Your phone will also need to be unlocked.

If you don’t want to do this manually you can find pages online ( like this page ) where you can select your phone and the network operator to verify if they’re compatible.

Network providers in Japan

Japan has four mobile phone companies that operate their own network.  The three major players are NTT Docomo, Softbank (formerly Vodafone), and Au by KDDI.

A fourth challenger is Rakuten Mobile. Rakuten Mobile used to be a virtual operator but started building out its own network a few years ago. Today it covers about 94% of the population.

All other operators are virtual and use one of the existing networks. The tourist SIM cards we discussed in this article all work on either the Softbank or NTT Docomo network.

The network of NTT Docomo is recognized to be the best in terms of coverage.  Softbank comes in second although they are not far behind. Both these networks cover 99% of Japan (population-based).

These are the bands used by the Japanese operators:

Rakuten Mobile

Pocket WiFi device vs Tourist SIM card

One big perk of using a pocket WiFi device is that you can stay connected without having to mess with your phone.

No need to worry about changing your settings. Just remember to turn off your data connection to avoid those annoying roaming fees. With your SIM card still in the phone, you can stay connected with friends, family, work buddies, and anyone else who has your number just like you’re back at home.

If you want people to be able to contact you anytime, a pocket WiFi device is a great option.

Another advantage of pocket WiFi devices is that they let you connect multiple users at once (usually up to 10!).

Batteries of pocket WiFi devices usually last no more than a day. This is probably the biggest disadvantage. It is one more device that you need to charge on a daily basis.

Interested in Pocket WiFi devices?

See which ones you can rent in Japan . Or if you are going to use this often, you can buy your own device , just like us.

Which size of SIM card do you need

SIM cards have become increasingly smaller over the years. First, we had the standard SIM, then the Micro SIM and nowadays almost all modern phones use a Nano-SIM

Usually, providers use multi-size (3-in-1) SIM cards that are compatible with all phones.  Others only offer 2-in-1 (Micro and Nano) which means they will still be compatible with most current models. 

The technical specs of your phone will show what SIM you need.

In some cases, you will need to specify the requested SIM size with your order.

Free WiFi in Japan

You can easily find free WiFi at many places in Japan. Coffee shops like Starbucks, metro stations in all major cities, and JR train stations offer this convenient service.

Connecting to public WiFi networks was a pain the first time we were in Japan. Not only did we, have to do it over and over again. We also couldn’t get the connection to work for half of the time.

But now there’s a great app called Japan WiFi Auto-Connect that takes care of all the hassle for you. It automatically connects your phone to selected public WiFi hotspots. Only the trusted ones managed by reliable companies or authorities are used by the app for security reasons.

The app worked perfectly for 90% of the time during our last trips. Whenever we walked into a metro station or train station the phone usually connected to the WiFi in a matter of minutes.

The Japan WiFi Auto-Connect app is available for Android and Apple and makes free WiFi much more reliable for foreigners.

Still, I suggest not depending on free WiFi entirely, just like we don’t. As you move away from the big cities, finding reliable Wi-Fi spots becomes harder.

And even in the major cities, I find it super handy to have internet access all the time so I can look up stuff whenever something pops into my head – not just when I stumble upon a hotspot.

It’s a matter of convenience, but SIM cards are so cheap that I think it’s worth it.

Having a Japanese tourist SIM card turned out to be priceless.  With Google Maps we could easily find our way around the cities, we discovered interesting places to eat and we weren’t restricted to touristic restaurants since we could use our mobile phone to translate the menus.

It really helped us to travel deeper and get a better, less touristy experience of Japan.

There’re many different tourist SIM cards so we wrote this post to help you choose the one that suits your needs.  All information is accurate at the time of writing.

We will regularly update this article but if you notice any changes we would appreciate it if you let us know so we can update our post.

Enjoy Japan!

Japan SIM Cards: Your Must-Read Guide to Staying Connected in Japan

Plus, the 10 reasons why a Japan SIM Card is your best option!

If you're going to Japan & want to stay connected you'll need to make a decision: Japan SIM Cards, Wi-Fi routers, Roaming & Free Wi-Fi are all options to keep you connected in theory - but which option is best for you and do you really need a SIM Card for Japan? We've done the hard work for you with an ABC Guide on how to get connected in Japan, including some common misconceptions...

A. Free Wi-Fi is not a thing!

Japan has a reputation for being super-advanced but in some areas change has been slow. Surprisingly, free internet is almost impossible to find throughout Japan - even in Tokyo. Most Wi-Fi hotspots are not free & require you to register each use. The free ones aren't exactly free either as they're in cafes & restaurants - so you'll need to pay for food or drinks to connect. If you plan to be on the move rule this option out!

B. Renting a Wi-Fi Router may not make sense!

If you plan a very short stay and are happy to pay daily rental fees, then a Wi-Fi router may be your best option. Remember though that you'll have the hassle of keeping an extra device charged and returning your rental kit to the airport at the end of your trip. An easier and more economical alternative is to buy a data-only SIM. Unlimited Data SIMs are available from 8 to 31 days duration (see: www.mobal.com ) giving you the option to use the SIM in your own device and dispose of it at the end of your trip. You can even use tethering too to connect other devices. Get your SIM delivered to you before you travel so that you can Instagram from the plane on touchdown - or pick-up from the airport when you arrive.

C. Roaming is tricky.

Most cellular providers offer roaming in Japan, but beware - just using your phone for even a short period can result in returning home to bill shock! Some providers such as T-Mobile USA appear to offer great deals with unlimited data in Japan for no extra charge. Note though that data speeds are heavily throttled so this may restrict how you use your phone.

The advice is when in Rome... Get a local Japan SIM and avail of high-speed data and cheap calls if needed. The Japan Unlimited SIM from Mobal gives you data, voice & text with a minimum of 7GB of 4G LTE data per month (larger plans available if needed). If you use more than your high speed data allowance, your data will slow down, but the amount you can use is unlimited - plus, you can buy more high speed data if you need it. You get to control how much data you use, so you'll never return home to bill shock and you'll never run out of data either.

10 Reasons Why a Japan SIM Card is your Best Option

Until recently buying a Japan SIM card for your smartphone was simply not an option for overseas visitors - unless you wanted to sign-up to a complicated 2-year contract with huge fees payable if you left Japan early.

Luckily you can now get a no-contract voice & data SIM as well as prepaid data SIMs - all with English customer service, free incoming calls & free domestic calls on the same network*.

Order online from Mobal and you can choose to have your Japan SIM Card delivered in advance or collect from main airports & cities in Japan on arrival.

If you're still not convinced here's 10 more reasons why you absolutely need a SIM Card for your phone when in Japan!

1. Google Maps

2. phone numbers have status.

Japan is slow to change - think fax machines, single-glazed windows & CDs (yes, really!). If you plan to live in Japan a phone number is a must - you need one to get a job, rent an apartment, open a bank account, ship/receive a package - you basically need a phone number to do just about anything!

For visitors booking hotels and restaurants, a Japanese phone number can often be more acceptable than your credit card, so consider the advantages of a voice and data SIM over a data-only SIM.

3. Shopping Online?

Planning to avail of free delivery to your address when in Japan. Great deals are available from electronics stores such as Bic Camera or clothing outlets like Muji but guess what you need to avail of delivery? A Japanese phone number!

4. Uber/Japan Taxi

If you find yourself out at night (a spontaneous Karaoke night perhaps!) you'll quickly discover public transport isn't 24 hour. If you need an English-speaking driver Uber is useful and Uber taxis don't charge a late-night surcharge - great for getting back home from wherever you are.

5. Eating In is the New Eating Out

Want to order takeout to your room - all from the comfort of your phone? You definitely need a SIM and you may even need a phone number. We recommend you go for the Mayo-Jaga pizza (potato & baked mayonnaise on a tomato base)!

6. Google Translate

Whether it's deciphering zany pizza menus for home delivery or communicating with the locals you will definitely make use of this app. As it doesn't work on batteries we definitely recommend you get a SIM card ;-)

7. Social Media

Being in Japan means lots of photos. Lots of photos means lots of sharing online. Make sure your family and friends are as jealous as possible of your adventures in Japan by keeping them updated through social media! Plus, with average commute times in Japan over an hour you'll end up browsing or wanting to!

8. Music/Podcast/Shazam

Walking through the streets of Japan and hear a song that catches your ear? Don't worry about having to figure out the Japanese to type in lyrics to Google - just use Shazam to find out and discover many new Japanese songs!

9. 4G or LTE speeds

As long as you're on a Japanese network and not an MVNO SIM you'll get the same data speeds as Japanese people do. It's fast as you might expect. Mobal's Japan Unlimited SIM is the only voice & data SIM available to everyone that uses the Softbank network - if you want quality this gets our vote.

10. Emergencies

With extreme weather events & earthquakes a part of daily life having a voice SIM with SMS capability doesn't just mean your analog friends can keep in contact from overseas, it also means you'll receive early warning alerts & updates.

Finally, here are 10 reasons why you should choose Mobal...

• Mobal have been trusted by international travelers for over 30 years.
• You get always on data - Data is totally unlimited, so you'll never run out.
• You get a real Japanese phone number.
• There are options for short-term visitors and long-term residents - all with no contracts, so you use the SIM for as long as you like and cancel anytime.
• You get free incoming calls & incoming texts.
• You can call other Mobal/Softbank users completely free of charge 20 hours of the day from 1am to 9pm.
• You get free shipping to your home address - or free pick-up when you arrive in Japan.
• You get English speaking customer support.
• Your SIM comes with a 100% money back guarantee.
• BONUS - The majority of Mobal profits go to charity. Mobal profits provide a hot school meal for needy kids around the world - including an after-school feeding programme in Tokyo. So, with your Mobal SIM, you're not just traveling the world, you're making it a better place. To find out more click here .

Click here to buy a Japan SIM Card from Mobal today.

* Calls to other Mobal / Softbank users are free 20 hours of the day from 1am to 9pm. Calls made outside this time will be charged per minute.

7 Best SIM Cards for Japan in 2024

Home | Travel | Asia | 7 Best SIM Cards for Japan in 2024

If you want to have mobile data during your trip, consider getting a SIM card for Japan . There are several cards to choose from depending on the purpose of your trip, so I’ll share my top recommendations as well as their pros and cons.

I’ll tell you upfront that we use the Holafly eSIM card whenever we travel abroad, and the company even has eSIMs for Japan . We’ve never had a problem using Holafly, and what I like most about these digital cards is that they’re super easy to install and activate. Plus, the plans come with unlimited data for Japan , so we never have to worry about how much we’re using. You can even get a discount on Holafly for being a Capture the Atlas reader; just use our link.

5% OFF your international eSIM card

That said, if you prefer a physical SIM card for Japan or your phone isn’t compatible with eSIM technology , you can still get internet for travel . In this case, I recommend the Japanese SIM cards from SimOptions , which you can order online and have delivered to your home. Just be sure to order it in advance so you can install it before leaving for your trip.

There are other SIM card plans for Japan , so in this guide, I’ll share the best ones, where to buy them, and some tips for finding the most suitable options for your trip.

How do Japanese SIM cards work?

First of all, you should be aware that it’s against the law for tourists to have a phone number from Japan . In other words, you can’t get a SIM card in Japan that includes phone calls.

Fortunately, you can still get travel Internet in Japan thanks to Japanese data SIM cards that allow you to access the Web. In this way, you can make calls and send messages through a mobile app like Messenger, WhatsApp, or Skype.

When you’re choosing a travel SIM for Japan , always check your device’s compatibility and mobile network first. You don’t want to spend money on a card only to find out once you’re in Japan that you can’t use it with your phone.

If you decide to go with the Holafly eSIM for Japan , I recommend checking your device’s compatibility here . For local Japanese SIM cards , you can check this on the retailer’s website or at the storefront.

Japanese SIM card price comparison

I’m going to share the best SIM cards for Japan , but first, here is a brief overview of my top picks. This way, you can quickly compare the most important stats like price, duration, and amount of data.

You’ll see that Holafly offers the best deal for both short-term and long-term trips. Not only is Holafly affordable, but its cards come with unlimited data, so you can enjoy the Internet without worrying about your data usage. The digital SIM card is delivered via email, so you can purchase it before your trip or when you’re already in Japan.

Of course, I know that some people prefer a physical card, so I’ve included several Japanese SIM cards that you can insert directly into your device. The cheapest option is the Rakuten Mobile SIM, which you can buy from a local store in Japan. The downside of getting this card is that you’ll have to locate a store that sells Rakuten Mobile, and the live customer support is in Japanese, so if you have any issues, it could be hard to find a solution.

Personally, I prefer paying a little more for the eSIM from Holafly since the company offers live chat in English. When I need a physical SIM card, I go with SimOptions because I can order it before my trip, install it, and fix any issues I may have prior to landing in Japan.

What is the best SIM card for Japan?

For us, the best SIM card for traveling to Japan is the Holafly eSIM . It arrives by email as soon as we purchase it, so we can buy it whenever we want, plus it offers high-speed unlimited data.

I’ll tell you more about Holafly as well as the other top SIM cards for Japan below so you can make the best choice for your trip and preferences.

1. Holafly eSIM, the best SIM card for Japan with unlimited data

The Holafly eSIM for Japan is a digital SIM, so after you order your card , you’ll get an email with a QR code that you can scan to start accessing the Internet. This is ideal if your phone doesn’t have a dual card slot, or you are already abroad and need a SIM card.

Keep in mind that to scan the QR code, you’ll need to print it out or send it to your travel companion so you can scan it off their device. Also, I recommend checking your phone’s compatibility here before purchasing the international eSIM .

Looking at the Japanese eSIM card plans for Holafly, you’ll notice that each one includes unlimited data. The shorter-term plans are a bit more expensive compared to other local cards, but Holafly is more convenient, and you can snag a discount on your Holafly purchase by using our link.

2. SimOptions, another one of the best SIM cards for Japan

Another one of the best data SIM cards for Japan is the physical one from SimOptions . I like using SimOptions because I can order the SIM card ahead of time and sort out any issues before my trip. It takes 1-3 business days for the card to arrive at your home, so make sure you order it in advance.

Something else I like about using SimOptions is that I don’t have to waste time and go searching for a local SIM card in Japan once I land. Instead, I can connect to the Internet right away and enjoy the rest of my trip. Also, if your device has a dual SIM card slot, you can simply insert the Japanese SIM card without having to remove your regular card.

SimOptions offers customer support by email and live chat in English, and there are different plans to choose from depending on the length of your trip. The plans have varying amounts of data, so here is a breakdown of the prices:

3. SoftBank SIM, another Japanese SIM card with data

The Japanese SIM card from Softbank is a physical SIM from one of the largest and most prominent communications companies in the country. It’s super popular, so you’ll be able to find it at official retailers, shopping malls, and even supermarkets.

Softbank has 400,000 Wi-Fi points throughout Japan, so you can access the network during your trip for free. Keep in mind that, if you use up the first megabyte of your plan, you can only recharge the card for 14 days afterward. I don’t really see the point of this, but it’s something to consider if you’re using data to work remotely.

Another disadvantage of this card is that you only get 500 MB for 31 days. This is equivalent to about two or three days of navigation, so it’s not a lot of mobile data.

Even so, this is a common prepaid SIM card for Japan , so if you decide to get it, you can purchase it online. You’ll have to register on the website by uploading a photo of your passport and providing some basic personal information.

4. IIJmio, an alternative SIM card for Japan

IIJmio is another option to consider if you’re looking for a local Japanese SIM card . It offers basic mobile data plans for 30 days, and while you’ll only get a few gigabytes, it should be enough for occasional Internet use and Google Maps.

One drawback of this card is that once the data is used up, you can’t recharge it. Rather, you’ll have to buy another prepaid Japanese SIM card . On the other hand, IIJmio offers customer support in Japanese and English, and you’ll receive an origami set with instructions as a gift with your purchase.

5. B-mobile, a popular Japanese SIM card for tourists

If you want to buy a Japanese SIM card online , check out B-mobile . With this service, you can order a SIM online, then pick it up once you land at the airport in Japan. B-mobile can even deliver the card to your hotel.

Regarding its mobile data and network, B-mobile has great coverage throughout the country, so it’s quite convenient for traveling tourists. Also, if you need to extend the duration of your plan or add more data, you can do so without having to buy another SIM card.

Overall, this is a flexible option, although you should keep in mind that B-mobile’s SIM card plans for Japan last from 10 to 20 days and don’t offer unlimited data. So, I only recommend B-mobile if you’re traveling short-term and don’t need too much mobile data.

6. Rakuten Mobile, a good Japanese SIM card for travel

Rakuten Mobile is another company with local SIM cards in Japan . Its 30-day plans offer basic, moderate, and unlimited data consumption, so you should find an option that suits you.

In fact, if you plan on spending a month in Japan, Rakuten Mobile is the cheapest Japanese SIM card , particularly for unlimited data. However, the Internet speed isn’t super strong, so that’s something to consider.

You can buy this SIM card in Japanese shopping malls, as well as in many stores and the airport. Activating it is simple since you just have to insert the SIM into your device to connect to the Internet. Your purchase also includes a free Rakuten Mobile email domain (@rakumail.jp).

7. Sakura Mobile, another SIM card in Japan with unlimited data

The last Japanese SIM card that I recommend is the Sakura Mobile card. This local SIM offers some of the cheapest data plans in the country, and it has customer support in English. Overall, it’s a simple and practical option for those looking for a physical SIM card.

Another benefit of Sakura Mobile is that you can order your card online and pick it up at the airport once you land in Japan. If you’re already in the country, you can purchase it at any official Sakura Mobile store. The only potential issues are that you must unlock your device and check its compatibility with the network here .

Where to buy a SIM card for Japan

Depending on which option you choose, you can buy a Japanese SIM card from the U.S. or from Japan. Personally, I prefer buying mine before the trip, so I feel fully prepared, but there is nothing wrong with purchasing a local SIM at a store or airport in Japan.

Again, we always buy the Holafly eSIM in advance through its website . Then, all we have to do is open our email and scan the QR code. When we need a physical SIM, we order it online through SimOptions, allowing 1-3 business days for it to arrive at our home.

Both of these SIM cards for Japan are easy to install and will allow you to travel with total peace of mind, and with support in your language.

Buy a SIM card in Japan upon arrival

Don’t worry if you’re already traveling or have landed in Japan. You can still get an eSIM for Japan with Holafly , although I recommend checking your device’s compatibility here first. There is also the option of getting a local Japanese SIM card , like the ones I mentioned above. You can find them at several stores, supermarkets, train stations, and airports in Japan.

Just remember that if you opt for a local SIM card, you’ll have to locate a store or retailer, which could take some time. Also, depending on the company, customer support may only be available in Japanese.

Most local cards don’t have unlimited data, so if this is something that’s important to you, I highly recommend getting the Holafly eSIM . Holafly’s Japanese plans range from short-term visits to stays as long as 90 days, and they all have unlimited high-speed data. The closest local competitor is Rakuten Mobile, which has a 30-day plan, unlimited data options, and good rates. However, some travelers have told us that after a few days, the Internet speed slows down significantly.

How to activate a Japanese SIM card for travel

Activating an eSIM or SIM card for travel to Japan is simple. With the Holafly eSIM , just scan the QR code in your email. You’ll have to print it out or send it to a travel companion to scan it.

For any physical SIM card in Japan , insert it into your device and activate the data. You’ll automatically receive an auto-configuration text message letting you know it’s ready to use.

Japanese SIM card compatibility and requirements

To wrap up, I’ll reiterate that we love using the Holafly eSIM for Japan or any other trip abroad. If your phone is unlocked and you’ve confirmed here that it’s compatible, I highly recommend it.

Otherwise, there are several other physical SIM cards for travelers that will let you access the Internet in Japan . Hopefully, after comparing the different plans, you’ll find a suitable option that allows you to browse the Web, do Internet searches, and send messages.

If you have any questions about these prepaid SIM cards for Japan , or you’d like to share your experience, please let me know in the comments below. I’d love to hear from you!

Have a great time in Japan!

Ascen Aynat

4 replies on “ 7 Best SIM Cards for Japan in 2024 ”

Hi Ascen Aynat,

How is the connection in rural areas in Japan? I’ll be traveling to Kyushu, Shikoku and Hokkaido and will do quite a bit of hiking and therefore away from urban areas. And in that respect is one option (holafly versus a simcard bought in Japan) better than the other?

Hi Yolanda, The connection in rural Japan is actually pretty good compared to other countries. In my experience, Holafly has always come through with a stable connection, even when we’re hiking or travelling in remote areas.

I’m going to Japan next week and will be there for 10 days. If I get a SIM card for 30 days, can my wife use the same SIM card when she going to Japan in a week after I get back? Or are the cards dedicated to one cell phone when activated? Thanks, Jason

Hi Jason, It depends on the card since some allow data sharing, while others are only for one specific device. Of course, take into account how much data each card includes since if you share it, you’ll run out of data faster. In other words, it could be more cost-effective to purchase separate SIM cards for Japan.

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Should I get a SIM Card when travelling to Japan?

• Published on : 12/04/2023
• by : Joshua
• Add to favorites

Prepaid SIM cards allow for high-speed data usage during travels to Japan, but whether or not purchasing one is the best option for an upcoming trip depends on the individual. We'll compare a temporary Japanese SIM card to other popular options for staying connected. 

What is a Short-Term Japanese SIM Card? 

A Subscriber Identity Module (SIM) card is a standard part of any cellular mobile device and allows said device to connect to a network for usage. Oftentimes, visitors to Japan will look into purchasing a temporary SIM card for using international phone data prior to their trip. 

For using these SIM cards in Japan, one can choose the period of valid usage ( 8 days, 16 days, or 31 days ) and then have it sent to their delivery address in their home country prior to departing for their trip. After arriving in Japan, the SIM card can be inserted into their phone or device then configured using the directions found here . Simultaneously, SIM cards can be sent to a traveler's place of stay within Japan after they've arrived.

Be aware that only an unlocked phone  can use the Japanese SIM card, so be sure to check for phone compatibility prior to purchasing. Also note that the SIM card does not support access to phone calls or SNS messaging, but making calls through messenger applications like LINE (the most popular service in Japan), Whatsapp, or another service is possible and largely standard.

In order to assess if a SIM card is the best choice as an international traveler, we’ll compare using a SIM card to three of the most common alternatives; Data roaming with pre-existing phone plans, foregoing individual data and instead relying on free public WiFi , and renting a pocket WiFi device.

SIM card installation

What is an E-SIM? 

An E-SIM provides wireless data without the need for a physical SIM card. This means there's no need to insert anything into your device, as well as no need to wait for a physical SIM card to be delivered, as the E-SIM will be sent via a link in an e-mail. E-SIM cards are quickly becoming the standard in the mobile industry, but as they have been introduced relatively recently, only more new phone models will be compatible with E-SIM. Be sure to check your phone's compatibility to see whether or not an E-SIM or a physical SIM card will be best for you!

Take a look at some SIM card options for your trip to Japan!

SIM Card SIM cards

• Included : Pre-charged and ready to use, Up to 150Mbps, Fast and secure delivery

eSIM How to access Internet in Japan ?

• Included : Up to 150Mbps, Fast and secure delivery

SIM Card vs Data Roaming 

Data roaming is utilizing mobile data provided by a local cellular provider that has a contracted agreement with a provider back in a traveler’s home country.

Roaming varies by provider, individual plans, and the country of travel, so how the conditions of data roaming compare to that of a SIM card varies largely by individual tourists and their phone usage.  

However, in general, roaming entails additional fees added to the base contract costs. For travelers where this is the case, the SIM card may be an enticing option, as it is a prepaid expense with no extra hidden charges. It’s important to note that oftentimes roaming charges are issued on a daily basis with limits set in place, meaning that expenses can stack up quite easily and unexpectedly. On average, U.S. cellular providers will charge anywhere from 10 to 30 USD per day for roaming data in Asia. Other companies may also price roaming on a per-megabyte basis. Through a Japanese SIM card, the unlimited data included in the base price allows for visitors to be connected at all times. 

For those with adequate roaming options already included in their phone plans, there will be no issue. However, a prepaid SIM card removes a lot of the guesswork that may come for those who do not have innate roaming included in their phone contracts.

SIM Card vs Public WiFi

For some, foregoing personal data and fully relying on free public WiFi is an option. This is often done as it entails no additional expenses or contractual obligations, but with that, there are a number of drawbacks. 

First off, visitors are often under the heel of WiFi internet accessibility. Though Japan is often celebrated for its technological advancements (and often lives up to such praise), WiFi access is actually somewhat rare compared to other countries like Korea or Taiwan. Public WiFi access is often found in some cafes (predominantly large chain institutions such as Starbucks or Doutor), or places of accommodation . Many train stations offer public WiFi, however, accessing them often requires a sign-up or log-in and aren’t always consistent or dependable, though the option is always there for those who need it. 

Additionally, security is a potential issue that may arise when operating solely on free public WiFi.

If someone is handling sensitive or personal information, they should be aware of the risks that may come up. Through a SIM card, data is used individually and kept private, avoiding these security risks. 

So given all these caveats, does foregoing personal data usage for free public WiFi work well for any visitors? For individuals traveling to Japan for business trip purposes and will predominantly be spending their stay at hotels , offices, or meeting spots, depending solely on the internet options provided at these locations may be more than adequate. Though, if one falls under this category, be aware that the security risks still exist. Working with confidential information should be avoided or done with a reliable Virtual Private Network (VPN) service. 

Working at a cafe is a common option for remote work

SIM Card vs Pocket WiFi

Pocket WiFi devices are one of the primary means of mobile data usage for travelers to Japan. In fact, pocket WiFi devices are often compared and contrasted to individual SIM cards during pre-departure preparations and research due to their similar functions, similar price, and popularity.

Through Japan Experience, pocket WiFi devices are available for rental at a price starting at 44 USD for 5 days and SIM cards are available for purchase at a price starting at 29 USD for 8 days . 

If one has reserved a pocket WiFi device, they will need to pick it up at the airport upon arrival or have it sent to their place of stay within Japan. From here, it is simple to use and just requires a password to connect to the WiFi hotspot. 

A pocket WiFi carries some stand-out benefits, most notably the ability to host multiple connections at once through a hotspot. This is especially beneficial to those traveling within groups or families who wish to share internet access along with those needing to operate multiple devices, like tablets or laptops, during their trip. 

There are some things to keep in mind, however, that may make an individual SIM card the better option for some visitors. As previously mentioned, the pocket WiFi is a separate device that must also be carried around to use. In addition, it has its own power source. While the pocket WiFi has a long and dependable battery life, it will need to be charged and if it runs out of battery, the network will not be accessible. There is also a range limit of 20 meters for hotspot access, and while this is quite far and adequate for most situations, it is something to keep in mind. Individual SIM cards are inserted into mobile devices and thus have no physical accessibility limitations and can be used the entire time without the need of a hotspot connection. 

Ultimately, both options boast a range of benefits for mobile data in Japan and which is best depends largely on the conditions individual travelers will face during their stay. 

Rent a pocket wifi for your trip to Japan!

Pocket Wifi Pocket WiFi

• Included : High autonomy (up to 8 hours of use), Economic and simple

Is a Short-Term Japanese SIM Card right for me?

A short-term Japanese SIM Card is a great option for using mobile data in Japan in a cost-effective manner, but its utility in comparison to other options largely depends on a traveler’s specific conditions and needs. Essentially, the continued use of one’s personal device with high speed internet helps to streamline the travel process more, so adequate research for the best options is an essential part of pre-departure preparations. Either a temporary Japanese SIM card or a rentable pocket WiFi device will satisfy the needs of a majority of travelers and ensure that one is connected the entire time of their stay in Japan.

• Smart Phone Apps for your train travel in Japan 
• Do I need a Sim Card?
• Do I need a Pocket Wifi?
• Internet Access in Japan 
• Rent a phone in Japan

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Best 6 eSIM and 7 Physical SIM Card Providers in Japan 2024

Published on 2024-01-19 by Sakura Mobile

Are you planning on making a trip to Japan?

While there, you’ll want seamless internet access to apps like WhatsApp, Google Maps, Google Translate, or Instagram without any issues.

However, choosing between eSIM & physical SIM options can be challenging. Lack of information might lead to: • Uncertainty about which type your phone supports. • Running out of data too soon. • Difficulty setting up your eSIM or SIM card without prompt customer support.

Don’t worry — we’ve got you covered! Keep reading to learn the basics of eSIMs & SIM cards. We’ll cover everything you need to know for a short-term stay (under 90 days), including data plans, prices, setup guides, customer reviews, & the top providers.

A simple comparison table of eSIM, SIM Card, and Pocket WIFI

This article covers information on eSIM & SIM cards for short-term stays (under 90 days). Please refer to the article below for information on long-term SIM cards (monthly contracts).

• 8 Best SIM Cards in Japan | Cell Phone Plans for Long-Term Stay

If you already know which product you want, you can head straight to the information here!

• eSIM Information
• Physical SIM Card Information

Table of contents

• What is an eSIM?
• What travelers in Japan need to know about eSIM
• The best 6 eSIM for traveling to Japan
• Things to keep in mind when choosing an eSIM
• Introduction to Physical SIM Cards
• What travelers in Japan need to know about physical SIM cards
• Top SIM cards for Japan Travel
• Key Factors when choosing a SIM card
• eSIM and physical SIM card vs. Pocket WiFi: Which is Best?
• eSIM and Physical SIM card FAQ
• Final Thoughts

Too busy to read the article? Here’s a summary!

Japanese eSIM Providers

• Best : Sakura Mobile
• Runner ups : Ubigi, AIS SIM2Fly
• Others : Nippon SIM, eSIM Japan, Flexiroam

Japanese SIM Card Providers

• Runner ups : HIS Mobile, GENKI MOBILE
• Others : Any Fone JAPAN , b mobile , eConnect , SoftBank Global Rental

1.　What is an eSIM?

eSIM stands for ” embedded SIM,” which means the SIM card is built into the device. Many newer smartphones and tablets now support eSIM. Unlike a physical SIM card, an eSIM doesn’t need to be inserted or swapped; you can set it up online. Before buying an eSIM, make sure your device supports it. For example, iPhone XS and later models (except those sold in Hong Kong) are compatible with eSIM.

Do you want to quickly check if your device is compatible with eSIM? If so, you can refer to the list in the article below.

TRAVEL eSIM COMPATIBILITY

↑ Go back to the table of contents

2.　What travelers in Japan need to know about eSIM

Before you use an eSIM for your trip to Japan, here are two things you should know:

How to Get an eSIM for Your Japan Trip

Are you thinking of buying an eSIM for your trip from one of Japan’s major carriers (docomo, SoftBank, or au)? Unfortunately, they don’t offer short-term eSIM plans.

But don’t worry! You can get one from a Mobile Virtual Network Operator (MVNO). They use major carrier networks to offer short-term eSIM plans.

Sakura Mobile is one such MVNO. Please read through this blog and choose the eSIM plan that meets your needs.

About eSIM with phone numbers

While some companies may offer eSIMs with Japanese phone numbers, providing Japanese phone numbers to non-residents is challenging due to stringent regulations and security concerns. Furthermore, they might not work correctly.

Data-only eSIMs, however, are an excellent option for short-term travelers since they do not have legal issues. Their internet access allows making calls and chat using apps like WhatsApp.

Most short- and medium-term tourists don’t need a phone number, but if you need one for work purposes or applications to government agencies, please refer to the article below.

How to Get a Japanese Phone Number

3.　The 6 Best eSIM for Travel in Japan

Scroll right for more →→

So, which provider should you choose?

Did this table help you understand more about which eSIM provider you should choose? Below, we will explain in more detail three companies that we highly recommend for your next trip.

Sakura Mobile

While Sakura Mobile’s eSIM isn’t the cheapest option, it offers flexibility and up to 200 GB of data. You can also top up your data and extend your usage as needed. When choosing a provider, Sakura Mobile stands out. Easy and Flexible with Travel eSIM

Let’s take a closer look at Sakura Mobile.

Comprehensive Plans

Sakura Mobile offers a variety of data plans, from 3 GB to 200 GB, with usage periods between 3 and 90 days. You’re sure to find a plan that fits your needs perfectly.

Year-round English Customer Support

Sakura Mobile’s English Customer Support is available 365 days a year. If you have any problems with your eSIM, you can quickly and easily get help.

High Customer Satisfaction Rating

Sakura Mobile’s website boasts over 3,000 positive reviews, making it one of the highest-rated and most reliable companies in the comparison table.

Japanese eSIM Provider

Sakura Mobile is a Japanese telecommunications provider that uses docomo’s network, Japan’s largest, to ensure high-quality communication. Besides offering a reliable network, Sakura Mobile is known for its exceptional and friendly customer service, a hallmark of Japanese hospitality. Additionally, with offices and stores in Japan, customers can easily access direct support from staff.

Sakura Mobile eSIM Reviews: What Customers Are Saying

While traveling in Japan, we have had customers who experienced frustration and stress while dealing with SIM cards and eSIMs. Although many companies in Japan offer similar telecom services, the same cannot be said for the English support and service that Sakura Mobile provides. Along with utilizing the largest telecom network in Japan, docomo, Sakura Mobile provides full English service from start to finish, helping customers with their orders and any technical issues that may ruin the trip. With support via phone, email, and chat, customers can enjoy their trip to the fullest without any worries and stress.

For real user feedback, please check the reviews from customers who have actually used Sakuramobile.

https://www.sakuramobile.jp/reviews/

Conclusion: Which eSIM provider should I choose?

4.　Things to keep in mind when choosing an eSIM

eSIM Activation

In most cases, you can activate your eSIM by scanning a QR code provided by your service provider. This QR code is usually sent via email or can be found in the provider’s app.

Flexibility: Extending Usage, Cancellation & Refunds, Adding Data, etc.

Unexpected changes can happen when traveling. For instance, you might fall ill after buying an eSIM and cancel your trip, or a one-week business trip might extend to two weeks. Sometimes, you may also use more data than expected and run out.

Signal/Service Coverage

The eSIM providers featured in this article use Japan’s major carrier networks, covering 99% of the population. However, be cautious when using your phone in rural areas, mountains, or underground. If you are considering hiking in Japan, please refer to the article below. Docomo Coverage Makes Climbing and Hiking in Japan Easier

English Language Support

Running into connection issues or needing clarification on settings can be frustrating, especially in another language. Choosing an eSIM provider with English customer support can make your experience smoother.

Here are some key points to consider:

• Contact Methods: Choose a provider offering both email and phone support. This allows you to call for emergencies and email for non-urgent matters.
• Availability: Many eSIM providers are closed on weekends, which can be inconvenient if you need assistance. It’s best to select a provider whose customer support is available year-round, including holidays.
• Local Presence: If you prefer in-person communication, opt for a provider with a physical location you can visit.

5. Introduction to Physical SIM Cards

If your phone doesn’t support eSIM or you prefer not to switch your eSIM, don’t worry! You can always use a SIM card for your travels. Read on to learn how to choose the right physical SIM for your trip!

6. What travelers in Japan need to know about physical SIM cards

Where to buy a SIM card in Japan

You might think you can buy a SIM card directly from a major Japanese mobile carrier like docomo, au, or SoftBank. However, this isn’t possible. These carriers provide prepaid SIMs to retailers, and that’s where you can get one. One example of such a retailer is Sakura Mobile, as mentioned in this article.

How to use SIM card and Pocket Wi-Fi in Japan

About prepaid SIM cards with phone numbers

In Japan, prepaid SIM cards sold with a phone number are rare due to legal and security concerns. This means you can only apply for a Japanese phone number here if you have a residence card, which is impossible to obtain on a tourist visa. However, anyone can get a data-only SIM card, which lets you use messenger apps like WhatsApp to make calls.

In Japan, prepaid SIMs with phone numbers for travelers are rare, with only data-only SIMs typically available. 

These provide data but no phone number due to strict identity verification laws, which restrict phone numbers to residents. Providing phone numbers to non-residents is generally considered illegal. Some companies may offer eSIMs with Japanese numbers, but they could be operating illegally, and the SIM may not work properly. 

Data-only SIMs on the other hand, still allow calls and messaging through apps like Skype and WhatsApp without any of the legal complications. 

For those who want to know more about obtaining a phone number in Japan and the related legal aspects, please refer to the article below.

Online Reservation vs. Airport Purchase

How to get a sim card in japan.

There are two ways to purchase a SIM card for Japan:

• Reserve one online before your trip and pick it up at the airport upon arrival.
• Buy one from a retailer at the airport after you land.

We recommend reserving your SIM card online for two main reasons:

• It’s cheaper. Online retailers have lower operating costs, so their prices are more affordable.
• You’ll avoid the risk of SIM cards being sold out. During peak travel seasons, airport shops may run out of stock. With a reservation, you can pick up your SIM card stress-free.

All the providers we introduce in this article offer the option to reserve your SIM card online. It’s a convenient choice to make before your trip.

7. Top SIM Cards for Japan Travel

Which SIM Card Should You Choose?

Feeling more confident about which SIM card might be right for you? Let’s dive deeper into the details of our top three recommended providers.

Scroll right for more if on mobile →→

While Sakura Mobile’s SIM cards may not be the cheapest, they offer relatively fast connection speeds (up to 20 Mbps) and unlimited data.

Here are some key benefits of choosing Sakura Mobile:

Extended Airport Counter Hours

Most companies listed above require you to pick up your SIM card at the airport post office, which may be closed if your flight arrives late. However, Sakura Mobile has airport pickup counters with extended hours, ensuring you can get your SIM card without any hassle.

Year-Round English Support

At Sakura Mobile, our English customer support is available year-round, making it easy to get help with your SIM card whenever you need it. You can also reach out to us via email for assistance.

Sakura Mobile’s website has over 3,000 positive reviews, significantly more than its competitors.

Main airport pickup counters

• 5 Best SIM Cards at Narita Airport | Unlimited Data Options
• 5 Best SIM Cards at Haneda Airport | Unlimited Data Options
• 6 Best SIM Cards at Kansai Airport | Unlimited Data Options

Sakura Mobile Review | Prepaid SIM & WiFi (Pick Up at Narita & Haneda Airports)

https://youtu.be/L1E1TH4a3QI

Visit Sakura Mobile’s Official Website

How to pick up your SIM card from the airport counter

Picking up your SIM card from the airport counter is easy. Just bring your reservation confirmation email from Sakura Mobile and your passport. The video below explains how to pick up a Sakura Mobile SIM card at the airport.

Explore Customer Feedback on Sakura Mobile SIMs

8. key factors when choosing a sim card.

Before introducing the top companies that provide travel SIM cards, here are some key points to consider:

• Connection speed
• Amount of data
• English support
• Airport counters

Let’s dive into each of these in more detail.

① Connection speed

When you’re on a trip and using your phone, you typically browse the web, message, or use Google Maps. For these activities, speeds of 3 to 5 Mbps are usually enough. Here’s a table of the ideal internet speeds for various online activities.

Scroll right for more if on mobile→→

You might wonder how fast prepaid SIM cards in Japan can be. While connection speeds vary by provider, you can generally expect speeds between 1 and 20 Mbps. We recommend choosing one with faster speeds for better reliability.

Although some providers claim speeds up to 187 Mbps, the maximum speed you’ll likely experience is around 20 Mbps. The comparison table lists actual speeds for each provider so you know what to expect. Note that some companies do not disclose their SIM card speeds; in these cases, we’ve marked them as “unknown” in the table

② Data Allowance

If you’ve been looking into prepaid SIM cards, you’ll notice many data plans available. With a limited data plan, you might run out of data in the middle of your trip, which can be very inconvenient. Imagine losing access to Google Maps and Google Translate in a foreign country — that would be quite stressful. To travel worry-free, we strongly recommend getting a prepaid SIM card with unlimited data. Our experts explain the prepaid SIM card with unlimited data in the blog below. Japan Prepaid SIM Data: Fixed vs. Unlimited Plans

What is a Fair Usage Policy (FUP)?

Ever wondered why your internet speed sometimes slows down, even with an unlimited data plan? The answer lies in a concept called the Fair Usage Policy (FUP).

Think of an FUP as ensuring everyone gets a fair share of the internet. It’s like a traffic cop, making sure the internet highway doesn’t get congested and everyone can keep moving at a reasonable speed.

Even with an unlimited SIM card, the FUP can slow down your connection speeds if you exceed a certain data threshold. To avoid triggering the FUP, consider saving big video downloads, online games, and YouTube binges when using Wi-FI at your hotel.

③ Service Coverage

The SIM card providers we recommend use Japan’s major carrier networks, covering 99% of populated areas. This ensures you’ll have internet access almost everywhere in Japan. However, signals may weaken in mountainous regions or underground.

④ English Language Support

If you’re having trouble connecting to the internet or setting up your SIM card, you’ll want to be able to contact customer support and get help.

Choose a SIM card provider that offers both email and phone support. This way, you can use the phone for urgent issues and email when you don’t need an immediate response.

Many prepaid SIM card providers don’t offer weekend support, which can be a real hassle if you need immediate assistance. Be sure to choose one with year-round customer service to make sure you’re not stuck waiting for the next business day.

⑤ Airport Pickup

To avoid any inconvenience when picking up your SIM card at the airport, ensure your arrival time aligns with the pickup counter’s operating hours. The last thing you want is to find the counter closed when you get there.

8. eSIM vs. Physical SIM Card vs. Pocket WiFi: Which is Best?

When traveling in Japan, eSIM and SIM cards aren’t your only options for staying connected. Pocket WiFi devices, also known as mobile hotspots or portable WiFi routers, are also popular among travelers.

We recommend buying a pocket WiFi  if you want to:

• Have easy internet access with minimal setup
• Share data with family and friends while traveling

Consider purchasing an eSIM or physical SIM card if you:

• Prefer not to carry a pocket WiFi device
• Prefer not to have to worry about another device’s battery life
• Don’t need to share data with others during your trip

Learn About Sakura Mobile’s Pocket WiFi Devices

9. eSIM & Physical SIM card FAQ

Can I Use a Japanese eSIM with My Phone?

To use a Japanese eSIM, your device must:

• Be eSIM-compatible
• Be SIM-free (not SIM-locked)
• Work with Japanese networks

Most providers’ websites have a list of compatible devices for their eSIM. For example, see the list of devices compatible with Sakura Mobile’s eSIM .

If you need help figuring out if your device is SIM-free and compatible with Japanese networks, contact your chosen carrier to confirm. For example, you can use Sakura Mobile’s Contact For m to send your device name and model number, and their staff will confirm compatibility.

Setting up an eSIM varies by device and provider but usually involves scanning a QR code. This code is often emailed or found in the provider’s app. Using the app may require you to register and provide personal details. If you get the QR code by email, you can often skip this step, making the process easier and faster.

Physical SIM FAQ

To use a Japanese SIM card, your device must be:

• SIM-free (unlocked)
• Able to receive Japanese carriers’ signals

Most providers’ websites have a list of compatible devices for their SIM cards. For example, see the list of devices compatible with Sakura Mobile’s SIM cards .

If you need help figuring out if your device is unlocked and can receive Japanese carriers’ signals, contact your chosen carrier to confirm. For example, you can use Sakura Mobile’s Contact Form to send your device name and model number, and their staff will confirm compatibility.

The SIM card setup process varies depending on your device and provider. However, it’s straightforward and can be completed in 10 to 15 minutes by following the manual.

10. eSIM and physical SIM card or Pocket WiFi

eSIM and physical SIM cards are not the only options for connecting to the internet while traveling in Japan. Pocket WiFi devices, also known as mobile hotspots or portable WiFi routers, are also popular among travelers.

We recommend buying a pocket WiFi if:

• You want to use the internet with minimal setup
• You want to share data with family and friends who are traveling with you

On the other hand, you should consider purchasing an eSIM or physical SIM card if:

• You do not want to carry a pocket WiFi device on your trip
• You are worried about the battery life of another device
• You are not sharing data with other people during your trip

Sakura Mobile offers pocket WiFi devices in addition to eSIM and physical SIM cards. If you are interested, please check the Sakura Mobile travel pocket WiFi website.

11. Final Thoughts

This article covered everything you need to know when shopping for mobile internet access for your Japan trip. We hope you found it helpful. Thank you for reading, and good luck!

Why Sakura Mobile is the Best Choice for eSIM & SIM Cards

Key features for Sakura Mobile products

• Unlimited SIM card data plans starting at just 4,500 JPY.
• Access to the stable, fast docomo 4G network.
• Coverage in 99% of populated areas.
• Reliable, year-round English customer support.
• Convenient pickup at any international airport in Japan.
• Order online and pick up your SIM card as early as the next day.
• Free delivery of SIM cards to hotels across Japan.

For your eSIM and SIM card needs in Japan, we recommend Sakura Mobile, which has earned over 3,000 customer reviews and a 4.7/5 satisfaction rating. If you’re getting a SIM card, Sakura Mobile will deliver it free of charge to the airport or the place you’ll be staying.

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• Tokyo Cheapo (繁體中文)

Your Prepaid SIM Card Options for Travel in Japan

You land in Tokyo and ride the train into the big city. Maybe you stand in the middle of Shibuya’s Scramble Crossing , delaying traffic while you take a selfie. Or you hit up a restaurant, pointing at a random photo on the menu and hoping the waiter gets what you’re trying to order. And when it arrives, the first thing you think is, “I need to post this to make my friends envious.” Here’s the lowdown on getting a Japan SIM for your visit, for your data and voice communication needs.

Note: This article is about SIMs for a short stay in Japan. If you’re planning on living in Japan or you’re here for an extended period of time, see our article on  Japan SIM contracts .

Short-term Japan SIM options for tourists

I’m here for a week or two and just need to update my status every dayyyyy.

That’s fine; if you order your SIM in advance, you can get online the minute you pick it up at the airport (all companies provide some form of airport pick-up). This isn’t an exhaustive list; just our top picks of prepaid Japan SIM cards. Keep in mind that some of them can be recharged with extra data.

More about the providers

Mobal: the only option with data + voice.

With the Mobal voice + data SIM , when your 7GB is up, data is still available at slower speeds. Top-ups can be purchased. 60-, 90-day and long-term packages also possible. If you’re traveling from China , you have access to a range of other prepaid packages . Free shipping to many countries, or pick-up at Narita or Haneda Airport, as well as Fukuoka, Kansai, Nagoya and Sendai airports and downtown Tokyo and Osaka. Similarly to all voice-calling products, the voice + data SIM carries a ¥ 2,970 initial fee, which is included. On the data-only SIM, speeds may be temporarily reduced if more than 3GB is used in a day.

Simcard Geek

Sakura mobile.

Sakura Mobile SIM cards come pre-activated, so you simply plug and play. Longer-term SIM deals also available. Fair usage applies to data.

Called Japan Travel SIMs, IIJmio SIMs are available at airports and electronic stores countrywide. Prices are approximate, and the maximum (theoretical) speed is 788Mbps. SIMs can be recharged with extra data. Chinese language call center support is available.

Runs on the NTT DoCoMo network. SIM cards can be recharged with extra data. Delivery costs ¥ 370 to Japan airport post office, or ¥ 520 to a hotel/other accommodation. You can buy them at electronics stores and Aeon, too. SIM cards must be returned after use.

Voice + data vs. data-only travel SIMs

While data-only SIMs are often the default for travel these days, there are strong arguments for getting a SIM that allows you to make and receive calls and send/receive texts, from an actual Japanese phone number.

Making voice calls with a Japan travel SIM

With the exception of Mobal’s voice + data SIM , Japan’s SIM cards for short-term travelers are data-only, meaning you can’t call or text, or even receive phone calls. A partial workaround is to make VoIP calls through an app like Facebook Messenger, Skype, LINE or WhatsApp, but, as a group of tourists found out after driving their rental car into a ditch, this can be unreliable — we had to lend them our phone to call for roadside assistance.

Apps that require a Japanese phone number

Emergencies aside, you’ll need a Japanese phone number in order to use a number of apps locally — even if they can be downloaded outside of Japan. These include the following:

• Mobile Suica
• Yahoo! Japan

If you’re planning on using any of the above on your Japan trip, you’ll want to make sure you have ordered a voice + data SIM .

Buying a SIM card in Tokyo (or elsewhere in Japan)

Oops. Just ignored everything you said and went straight into town. Sorry.

No worries. Just look for a BIC Camera store (link in Japanese, but Shibuya, Shinjuku and Ikebukuro have quite a few) or Yodobashi Camera  (also in Japanese) and grab yourself whatever Japan SIM card seems like the best deal. Bic SIM cards are fairly popular, we hear. For more information, see our guide on where to buy a SIM card in Tokyo .

Once you’re in the shop, you can say to the staff: シムカードを探しています。私に合うのはどれですか？ Shimu kādo wo sagashiteimasu. Watashi ni au no wa dore desu ka? That translates to “I’m looking for a SIM card. Which one would be best for me?” Many stores will have English-speaking staff, to make things easier.

Japan SIM cards for tourists: Frequently asked questions

Got questions about Japan travel SIM cards? We have answers.

Which tourist SIM cards can I buy in Japan?

Mobal SIMs and Rakuten prepaid SIMs are among those you can order online when you are already in Japan. Other options include BIC Camera SIMs and IIjmio’s Japan Travel SIM, which you can buy at the airport. For more info, see our guide to buying a SIM card after arrival — while the focus is on Tokyo, it applies to all of Japan.

Where can I buy a Japan SIM card in Singapore, Malaysia, Hong Kong or The Philippines?

If you are traveling from one of the above areas, you can order a SIM card online and have it delivered before you leave for Japan, or—depending on the provider—pick it up at your local airport or landmark. For example, Mobal SIM cards can be collected at Singapore’s Japan Rail Cafe or the Nikkei Education Center in Hong Kong. There may be other options for your region.

How do I activate a Japan SIM card?

The exact steps depend on the provider, but generally it’s a matter of inserting the SIM into your phone and following the instructions provided. It doesn’t take long, and you should be able to start using it straight away.

Can I use an eSIM in Japan?

If you have a newer phone or tablet, you might be able to use a software-based eSIM card (instead of a physical SIM card) for your trip to Japan. Read more about eSIMs in Japan .

Where are the big companies like SoftBank, Docomo and AU?

As in most countries, there are network providers with their own retail brands, and smaller companies that operate on the networks of the big players like Docomo. You can get travel SIMs from the big players if you go into their stores, or order online from e.g. Amazon, but the smaller players usually provide the best value.

Alternatives to SIM cards for tourists in Japan

Wait a minute, this is TokyoCHEAPo, not TokyoEXPENSIVEo, you want me to pay actual money for a service? 

Not at all! You can be super cheap about data and use free wifi from teH giAnt Corporations. First up,  a coffee chain that I understand is quite popular with the kids, has free wifi, providing you register at the link above. Then, just pop into a store and away you go!

Sign up? That’s WAY too much work. 

OK, well, Apple happens to give out free wifi at various store locations with no login needed. And if there’s not one of those near you, the good ol’ Tokyo Metro provides free wifi too. AND if your home internet provider is part of the Fon network, you can use your own home internet login and passcode on Fon hotspots, which are practically everywhere in Tokyo. That’s not taking into account the myriad cafes and restaurants which also offer free wifi .

OK, calmed down now. Carry on.

It is worth pointing out a few other alternative solutions, too.

Renting a travel wifi router

First up, if you have more than one device that requires the net, or a few of you are traveling together, you may want to consider a portable wifi device from a rental provider like Ninja Wifi , who give our readers a 20% discount. You can pick these travel routers up and drop them off at airports for convenience, and they have generous data allowances. For a more in-depth take, see our popular  guide to renting a travel wifi router in Japan .

Pro tip: If you're traveling from Singapore , this portable 4G wifi router is probably the cheapest option. You can pick it up and drop it off in central Singapore. -->

Roaming in Japan

AND FINALLY, you may be pleased to know that some mobile networks outside Japan offer cheap roaming packages. For example, data is free in Japan for T-Mobile USA customers on one of their plans. Read the fine print carefully though, as your data speeds may be heavily throttled!

If a trip to the UK happens to be on the cards too, or you just want to wince at how pricey Japan is in comparison, check out our London Cheapo Guide to UK prepaid SIM cards and where to buy a SIM card in London .

Video explainer of SIMs for travelers to Japan

Information is subject to change. Article regularly updated. Last update: March 15, 2023.

閱讀中文版本: 日本旅遊 – 儲值SIM卡攻略

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SIM Cards in Japan: Top 7 Services for Travelers in 2024

Stay connected in Japan by using a SIM card! We introduce 7 Japanese SIM cards ideal for short stays along with information on eSIM and the pros and cons of using a SIM card compared to portable Wi-Fi routers.

Mitoyo, Kagawa, Japan

Stay Connected in Japan

There are several ways to access the Internet in Japan. The most inexpensive method would be to use free Wi-Fi, although its availability is limited and can expose users to vulnerabilities.

A SIM card for travelers or portable Wi-Fi router comes in handy in these situations. While the latter can handle a large amount of data, carrying the device around may require some effort.

Alternatively, a SIM card may only handle a little data and is more complicated to set up than a portable Wi-Fi. But it is far easier to carry and cheaper than a router.

This article features seven SIM cards that will support your short-term trip to Japan. We've also included information on eSIM services and inexpensive portable Wi-Fi routers that are an alternative to SIM cards.

Those planning a long-term stay in Japan should check out this MATCHA article .

Book the mobal SIM Card: No Postage Needed!

Top 7 SIM Cards in Japan: A Comparison 1. mobal 2. Sakura Mobile 3. Ninja WiFi SIM 4. Nippon SIM for Japan 5. IIJmio Travel SIM 6. Klook 7. Vending Machines at Airports eSIM: An Alternative to Physical SIM Cards Low-Cost Portable Wi-Fi Routers FAQs about SIM Cards in Japan

Top 7 Ways to Use the Internet in Japan: Find the Best One for You

Free WiFi in Japan: Locations, Apps, and Other Tips

9 Cheap SIM Cards in Japan for Long-Term Stays: With English Support

Top 7 SIM Cards in Japan

While there are many types of SIM cards to use when traveling in Japan, the following is a list of five recommended providers and two places to purchase them.

1. mobal SIM Cards

Picture courtesy of mobal

mobal , a long-established company headquartered in the UK, handles SIM cards for travelers to Japan.

They offer various SIM card plans, the cheapest with 25GB data costing 4,730 yen for 8 days. Please note that data speed may be reduced after exceeding 3GB per day.

Mobal cards can handle about the same amount of data as pocket Wi-Fi routers. Moreover, there is no shipping fee for worldwide customers , so overseas visitors can receive the card in their home country before arriving in Japan.

The company also handles Voice SIM , which comes with a Japanese telephone number . The duration is 30 days for 7GB costing 7,920 yen and up. Also, the trending eSIM is available for 8 days for 3GB starting at 2,340 yen.

Mobal: Wi-Fi & SIM with English Support and Easy Application

2. Sakura Mobile SIM Card

Picture courtesy of Sakura Mobile

Sakura Mobile is a popular service for English-speaking people who are traveling or staying in Japan for long periods.

Their SIM cards offer unlimited data (data speed may be reduced after exceeding 2GB per day) and cost 3,850 yen for 5 days. Although it may seem expensive compared to mobal, Sakura Mobile is known for its top-notch customer support.

The company will answer questions in advance and offer consultations during the trip if you have any problems. If this is your first trip to Japan or first time using a SIM card, we recommend choosing Sakura Mobile!

They also offer an eSIM service. While prices vary depending on the period of use, a 7-day package with unlimited data costs 4,620 yen as of August 2024.

Book the Sakura Mobile SIM Card: Excellent Customer Support!

Connect in Japan With Sakura Mobile! How to Get Cell Service and Wi-Fi

3. Ninja WiFi SIM

Picture courtesy of Ninja WiFi

For a trip of one to two weeks in Japan, we recommend the SIM card plans offered by Ninja WiFi , which come with a reasonable amount of data.

Ninja WiFi offers three types of SIM card plans:

- 7 days with 1GB per day for 3,795 yen, - 15 days with 1GB per day for 4,422 yen, - 30 days with 20GB for 5,049 yen.

The 15-day plan is particularly cost-effective.

Ninja WiFi is a company known for its popular and reliable pocket WiFi service available for international visitors.

*On the website, check Rate and Plans, where you can find details on the Ninja WiFi SIM Card plans.

20% Off! NINJA Wi-Fi Rental: Usage Guide, Pros and Cons, and a Discount

4. Nippon SIM for Japan

Picture courtesy of Nippon SIM for Japan

Nippon SIM for Japan is provided by DHA Corporation and is available on Amazon.

A 30-day plan with 3GB data costs 1,980 yen. There are other plans with a wide variety of duration and data.

Since the capacity is small, this card is suitable for those who don't use much data and looking to buy a cheap SIM card.

5. IIJmio Travel SIM

Picture courtesy of IIJmio Travel SIM

Those planning to purchase a SIM card during their trip should look for IIJmio Travel SIM . It is sold at major electronics stores in most large cities, such as Bic Camera, Yodobashi Camera, and Kojima .

This is an open-priced item with costs varying by store. As of August 2024, a 30-day card with 3GB data is sold for 2,480 yen at Bic Camera.

IIJmio is a low-cost SIM service provider that is well-known in Japan.

6. SIM Cards Offered by Klook

Residents of southeastern or eastern Asian countries should check Klook , an experience booking site.

Klook also sells various SIM cards that are suitable for a trip to Japan. Most of them can be sent to various Asian countries, so please take a look!

Book a Klook SIM Card or Portable Wi-Fi Router

7. SIM Cards at Airports

Photo by Pixta

If you forget to purchase a SIM card in your home country, don't worry! In recent years, major Japanese airports are provided with SIM card vending machines.

For example, a 5-day SIM card with unlimited data* is sold for about 3,000 yen at vending machines in Narita Airport. Recently, eSIM  with 50GB of data for 8 days are also being sold for 4000 yen.

Please check the official website for additional details. 

*The internet speed is get slowly when you use a lot of data amount in a few days.

eSIM: An Alternative to Physical SIM Cards

One of the concerns about using a SIM card is the risk of losing the SIM card when replacing it. After all, SIM cards are very small, measuring only 1 to 3 millimeters in size.

Recently, eSIM has been trending because it can be used without replacing the physical SIM card. In the U.S., the iPhone 14 series designed for eSIM use was released in 2022, and other carriers are expected to follow.

Companies in Japan are also offering this service.

As mentioned above, mobal provides this service for 1,920 yen and up (8 days with 1GB data). The price at Sakura Mobile is 3,350 yen for 10 days with 5GB of data. Nippon SIM for Japan also offers eSIM.

If you're using a smartphone that supports eSIM, please check out these other companies as well.

Book the mobal eSIM

Book the Sakura Mobile eSIM

Book the World eSIM

The Best eSIM in Japan: Top 12 Services in Comparison

World eSIM: Assisting Your Travels in Japan

Low-Cost Portable Wi-Fi Routers

In most cases, a portable Wi-Fi router handling a large quantity of data will be more expensive than a SIM card. However, this is not always the case.

For instance, Ninja WiFi router costs 770 yen/day with 3 GB/day. Furthermore, there is a 20％ discount via MATCHA and costs 3,080 yen for 5 days , which is a similar fee to SIM cards.

While it may be burdensome to carry a router, it allows multiple devices to access the Internet with no need to change SIM cards.

Please consider these facts when considering a portable Wi-Fi router.

Book you Ninja WiFi at a 20％ Discount

The Best Pocket WiFi in Japan: Top 14 Services in Comparison

FAQs about SIM Cards in Japan

Q1. is a voice sim or data-only sim a better choice.

Voice SIM comes with a Japanese telephone number while data-only SIM does not.

With WhatsApp, Messenger, and LINE becoming popular messaging apps, some may wonder why you need a Japanese phone number if you're not a resident.

But a phone number has its advantages. Firstly, users can phone the police or fire department when trouble occurs. Emergency calls can be made in other languages besides Japanese, so this is a major feature.

To apply for various services in Japan, such as the popular electronic payment app Pay Pay, users must register a phone number.

Those who are interested should check mobal, which handles Voice SIM cards suitable for short-term trips.

Q2. What does "unlimited data" mean?

In regards to data traffic, some SIM cards offer "unlimited" data usage.

Most of these types will easily handle 2 to 3 GB per day. However, exceeding this capacity will cause the speed to be reduced. While Internet accessibility remains, the flow of data will be considerably slower.

Q3. Can I change the SIM card of my smartphone?

If your smartphone is SIM-locked, the answer is no. While there are SIM-free phones in most Asian countries, some Japanese and American phones are locked.

There is a way to open these types of phones. Ask your carrier for information on how to unlock your smartphone.

Additionally, please note that some SIM cards may not be compatible with certain smartphone models. There is a compatibility list on the official websites of SIM card providers, so be sure to take a look!

Q4. How should I handle my original SIM card?

If you are going to change the SIM card in your home country, store the original in a dust-free place.

Those who plan to replace the card in Japan should bring a SIM card case. It can be purchased on Amazon and other retailers.

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