7 Best SIM Cards for Japan in 2024

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

I’ll be upfront – we regularly use Holafly eSIM cards while traveling overseas. What`s more, Holafly offers eSIM options for Japan. We`ve had no problems with Holafly and appreciate that their digital cards are simple to install and activate. Additionally, the plans include unlimited data for Japan, eliminating concerns over data usage. You can even get a discount on Holafly by using the link provided here as a Capture the Atlas reader.

That being said, if you favor a physical SIM card for Japan or your phone is not compatible with eSIM technology, you can still obtain internet for travel. In this situation, I suggest the Japanese SIM cards from SimOptions, which you can order online and have provided to your household. Just be certain to place the order in advance so you can install it before leaving for your trip.

There are other plans for mobile devices in Japan utilizing SIM cards, so in this guide, I’ll share the best ones, where to purchase 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 illegal for tourists to have a telephone number from Japan. In other words, you can’t obtain a SIM card in Japan that includes phone calls.

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

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

If opting for the Holafly eSIM for Japan, compatibility with your device should be checked here. For local Japanese SIM cards, this can be verified on the retailer`s website or in person.

Japanese SIM card price comparison

I will share details on the best mobile network options for Japan, but first here is a brief overview of my top selections. This summarizes the most significant specifics like cost, duration, and data allowance for quick comparison.

You’ll see that Holafly provides the most advantageous deal for both short-term and long-term trips. Not only is Holafly reasonably priced, but its cards come with unlimited information, so you can benefit from the Internet without worrying about your information usage. The digital SIM card is delivered electronically, so you can obtain it before your trip or when you’re already in Japan.

Of course, I understand that some individuals prefer a physical card, so I’ve incorporated several Japanese SIM cards that you can directly insert into your device. The most affordable option is the Rakuten Mobile SIM, which you can purchase from a local store in Japan. The downside of obtaining this card is that you’ll need to locate a store that sells Rakuten Mobile, and the customer support is only available in Japanese, so if any issues arise, it could be difficult to find a solution.

Personally, I opt for spending a bit extra for the eSIM offered by Holafly as the organization offers live chat assistance in English. When I need a physical SIM card, I go with SimOptions because I can order it ahead of my trip, install it, and address any issues I may encounter before arriving in Japan.

What is the best SIM card for Japan?

For traveling to Japan, we think the best SIM card option is the Holafly eSIM. It can be purchased and received digitally at any time, providing high-speed unlimited data usage.

I will offer additional details about Holafly as well as alternative top SIM cards for Japan below to allow you to make the optimal choice for your trip and own 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 gaining access to 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.

It is important to remember that scanning the QR code will necessitate printing it or sharing the device displaying it with your travel partner so the QR code can be scanned from their electronic device. Additionally, I suggest checking your phone`s compatibility here before obtaining the international digital SIM card.

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 pricey compared to other local cards, but Holafly is more convenient, and you can get 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 employing SimOptions because I can procure the SIM card beforehand and work 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 well in advance.

Something else I appreciate about utilizing SimOptions is that I don’t have to waste time and go searching for a local SIM card in Japan once I arrive. Instead, I can connect to the Internet right away and enjoy the remainder 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 via email and live chat in English, and different subscription plans are available depending on trip length. The plans include varying data allotments, so here is a breakdown of the pricing structure:

3. SoftBank SIM, another Japanese SIM card with data

The physical SIM from Softbank, one of Japan`s largest and most prominent telecommunications companies, is a widely popular option available at official retailers, shopping complexes, and even supermarkets.

Softbank has 400,000 Wi-Fi access points throughout Japan, so you can connect to the network during your trip at no cost. Keep in mind that if you utilize the first megabyte of your plan, you are only able to recharge the card within 14 days afterward. I do not really see the significance of this, but it is something to consider if you will be working remotely.

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

Even so, this type of prepaid SIM card for Japan is commonly utilized, so if opting to acquire it, purchase can be done online. Registration on the website involves uploading a photo of one`s passport as well as providing basic personal details.

4. IIJmio, an alternative SIM card for Japan

IIJmio also presents itself as an option worth considering for those seeking a local Japanese SIM card. It offers basic mobile data plans lasting 30 days, and while data allowances are limited, it should sufficiently support occasional Internet use and navigation assistance.

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

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

If you want to purchase 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 cellular data and network connectivity, B-mobile provides extensive coverage all through the country, making it quite convenient for traveling visitors. Additionally, if you need to extend the duration of your plan or add more data, you can do so without needing to purchase another SIM card.

In general, this presents a flexible option, although it is important to note that B-mobile`s SIM card plans for Japan last from 10 to 20 days and do not provide unlimited data. Therefore, I only recommend B-mobile for short-term travel where major data is not necessary.

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

Rakuten Mobile is another company that provides local SIM cards in Japan with options for basic, moderate, and unlimited data usage depending on need. Its 30-day plans should have an option suitable for your needs.

In truth, if you plan on spending a month in Japan, Rakuten Mobile is the most reasonably priced Japanese SIM card, specifically for endless data. However, the internet speed isn`t incredibly powerful, so that`s something to take into account.

You can obtain this SIM card in Japanese shopping centers, as well as many stores and the airport. Activating it is straightforward since you just need 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 final Japanese mobile network card that I propose is the Sakura Mobile card. This locally available SIM provides some of the most inexpensive data plans in the country, and it offers client support in English. Overall, it`s a straightforward and practical alternative for those seeking a physical SIM card.

Yescapa

€74.57/day

4 adults

Free (excess €900)

Free up to 30 days before

Unlimited

Where to buy a SIM card for Japan

Depending on which choice you select, you can obtain a Japanese SIM card either from the U.S. or from Japan. Personally, I prefer buying mine before embarking on the trip, so I feel completely ready, but there is nothing wrong with picking one up locally at a store or airport in Japan.

Again, we always purchase the Holafly eSIM in advance through its website. Then, all we need 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 mobile plans for Japan are simple to install and will allow you to travel with complete peace of mind, and with support in your native language.

Buy a SIM card in Japan upon arrival

There is no need to worry if you have already started traveling to or arrived in Japan. You can still obtain an eSIM compatible with Japan through Holafly, although I suggest checking your device’s capability here first. There is also the option to get a local Japanese SIM card like the ones mentioned previously. You can find them at numerous stores, supermarkets, train stations, and airports throughout 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 here don`t have limitless data, so if this is something that`s important to you, I highly suggest getting the Holafly eSIM. Holafly’s Japanese plans range from short temporary visits to stays up to 90 days, and they all have limitless high-speed data. The closest local competitor is Rakuten Mobile, which has a 30-day plan, limitless data options, and good rates. However, some travelers have told us that after a few days, the Internet speed reduces significantly.

How to activate a Japanese SIM card for travel

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

For any physical SIM card used 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 for use.

Japanese SIM card compatibility and requirements

To wrap up, I’ll emphasize again that we appreciate 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 strongly advise it.

Otherwise, there are various other physical SIM cards for travelers that will permit you to gain access to the Internet in Japan. Hopefully, after evaluating the different plans, you’ll locate a suitable option that allows you to browse the Web, conduct Internet searches, and send messages.

If you have any questions regarding these prepaid SIM cards for Japan, or would like to share your experiences, please let me know in the comments below. I`d be delighted to hear from you!

I hope you have an enjoyable time exploring Japan.