eSIM for Japan
Get an eSIM for Japan and enjoy reliable and affordable internet access on your trip.
Choose an eSIM data plan for Japan
15 days
US$48.99
eSIM for Japan
All plans have a 30-day activation period. If you get a plan today and don't activate it until , it will be activated automatically.
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How many travelers?
1
eSIM
4.7 (97,400+ reviews)
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Affordable data plans, starting from US$3.99.
Get 4G/LTE and 5G speeds where available, powered by partnerships with local operators including KDDI and SoftBank.
Works with all eSIM-compatible smartphones.
A Saily eSIM for Japan starts at US$3.99 for 1 GB and connects to local network partners for 4G/LTE and 5G coverage across Tokyo, Kyoto, Osaka, and other major Japanese cities.
Need more flexibility? The Unlimited plan gives you 5 GB per day at full 4G/5G speed, then keeps you online at 1 Mbps for the rest of the day — fast enough for navigation, messaging, and standard browsing. Download the Saily eSIM app, pick your data plan, and enjoy easy internet access while visiting Japan! And if you’re planning to visit more places in the region, consider getting an eSIM data plan for Asia and Oceania.
Compatibility: Works with all eSIM-compatible devices.
Plan activation: Automatically activated when you arrive at your destination (as long as you’ve turned on your Saily eSIM in your settings and enabled roaming).
Plan duration: Depends on the plan – either 7 or 30 days.
Data plans: From 1 GB to 20 GB or unlimited plans.
Delivery time: Instant. If you’ve purchased your Saily data plan through the website, you will instantly get a QR code via email for easy setup. If you’ve purchased an eSIM through the app, you’ll instantly see it on your profile.
SMS/Calls: Saily lets you add an optional US phone number alongside your eSIM for calls and SMS messaging. If you choose a data-only plan instead, you can still send messages and make calls using Voice over Internet Protocol (VoIP) through messaging apps, such as WhatsApp, FaceTime, and Facebook Messenger.
Speed: 4G/LTE and 5G, depending on your location and local network quality. High-speed 5G is available across major cities, including Tokyo, Kyoto, and Osaka.
Hotspot: Limitless hotspot sharing with friends and family.
Coverage: 4G/LTE and 5G coverage across major Japanese cities, including Tokyo, Kyoto, Osaka, Fukuoka, Sapporo, and Hiroshima. In remote areas like rural Hokkaido and the Japanese Alps, network coverage is patchier, which can mean weaker signal for any carrier.
Network: Saily connects to local carriers in Japan, including KDDI and SoftBank, for a stable, reliable connection.
Top-up: When you're running low, you can add more GBs through the app. You can also pick an auto top-up option and your new plan will activate automatically once your current one runs out.
Security: Safer browsing with built-in features, such as virtual location and an ad blocker, and protection against malicious sites and trackers.
How to get an eSIM for Japan
1
Choose a data plan for your trip
Select your destination and buy your travel eSIM data plan. Then, download the Saily app.
2
Set up your eSIM and enable data roaming
Set up the eSIM from your device by following instructions in the app and enable data roaming for your Saily plan.
3
Land in Japan, and your plan activates
Get ready for takeoff — your data plan will activate automatically when you arrive at your destination!
Japan
Remaining data
3 / 3 GB
Expires in
29 days, 7 hours
Why you should get the Saily eSIM app for Japan
Saily’s eSIM data plans include many benefits:
Get an eSIM for Japan with regional plans
Visiting countries other than Japan? You may want to get an eSIM that works in multiple countries, including Japan.
Saily vs. other eSIM services
 |  |  |  |  | ||
|---|---|---|---|---|---|---|
One eSIM for supported destinations |  |  | | |  | |
| Phone number (SMS and calls) | | | | | | |
| 24/7 live chat support | | | | | | |
Refunds | | | | | | |
| Security features | | | | | | |
| Virtual locations | 115+ | 0 | 0 | 0 | 0 | |
| Blocks malicious URLs | | | | | | |
| Data saver (ad blocker) | | | | | | |
| View Plans |
*This data was taken from competitors’ official English-language sites on August 22, 2025, and the West Coast Labs product comparison report. For additional info, contact [email protected].
** Saily® is unaffiliated with the goods or services to which it is being compared.
They talk about us
Why travelers choose the Saily eSIM app
Saily is an affordable, easy-to-use, and sustainable eSIM service that gives reliable mobile and internet connections from anywhere in the world. That’s why we recommend Saily as our eSIM partner.
Easy, cheap and fast. Easy step to step setup and troubleshooting, super fast speed (around 100 mbps). Cheap, great coverage and helpful chat/assistance. Keep up the good work.
5
I can set it up at home right now, activate it when I’m ready (it takes literally just a couple of minutes, I’ve tried it myself), and boom! I have internet on my phone when traveling, as it should be… So I recommend checking out Saily next time you’re traveling — it’s a must!
There’s so much you can’t do abroad without a proper internet connection. Saily takes care of everything. It’s simple to buy and easy to install. I love it.
Awesome — used Saily across 3 countries already (UK, Netherlands and Belgium). Took me like 1min to buy esim and activate it. My internet was way better than my friends' who remained connected to their local providers and used roaming plans instead.
5
With comprehensive coverage and affordable prices, Saily is the best eSIM for Europe. Activating Saily is straightforward. Download the app, choose your plan, and surf the internet. You can contact the Saily customer support team via live chat or email if you encounter any issues.
As a product backed by the reputable NordVPN brand, Saily benefits from the company's focus on security and privacy. Users praise its easy installation process, affordable pricing, and reliable coverage across the world.
1 / 7
Saily is an affordable, easy-to-use, and sustainable eSIM service that gives reliable mobile and internet connections from anywhere in the world. That’s why we recommend Saily as our eSIM partner.
Easy, cheap and fast. Easy step to step setup and troubleshooting, super fast speed (around 100 mbps). Cheap, great coverage and helpful chat/assistance. Keep up the good work.
5
I can set it up at home right now, activate it when I’m ready (it takes literally just a couple of minutes, I’ve tried it myself), and boom! I have internet on my phone when traveling, as it should be… So I recommend checking out Saily next time you’re traveling — it’s a must!
There’s so much you can’t do abroad without a proper internet connection. Saily takes care of everything. It’s simple to buy and easy to install. I love it.
Awesome — used Saily across 3 countries already (UK, Netherlands and Belgium). Took me like 1min to buy esim and activate it. My internet was way better than my friends' who remained connected to their local providers and used roaming plans instead.
5
With comprehensive coverage and affordable prices, Saily is the best eSIM for Europe. Activating Saily is straightforward. Download the app, choose your plan, and surf the internet. You can contact the Saily customer support team via live chat or email if you encounter any issues.
As a product backed by the reputable NordVPN brand, Saily benefits from the company's focus on security and privacy. Users praise its easy installation process, affordable pricing, and reliable coverage across the world.
Easy, cheap and fast. Easy step to step setup and troubleshooting, super fast speed (around 100 mbps). Cheap, great coverage and helpful chat/assistance. Keep up the good work.
5
I can set it up at home right now, activate it when I’m ready (it takes literally just a couple of minutes, I’ve tried it myself), and boom! I have internet on my phone when traveling, as it should be… So I recommend checking out Saily next time you’re traveling — it’s a must!
Saily is an affordable, easy-to-use, and sustainable eSIM service that gives reliable mobile and internet connections from anywhere in the world. That’s why we recommend Saily as our eSIM partner.
There’s so much you can’t do abroad without a proper internet connection. Saily takes care of everything. It’s simple to buy and easy to install. I love it.
Awesome — used Saily across 3 countries already (UK, Netherlands and Belgium). Took me like 1min to buy esim and activate it. My internet was way better than my friends' who remained connected to their local providers and used roaming plans instead.
5
With comprehensive coverage and affordable prices, Saily is the best eSIM for Europe. Activating Saily is straightforward. Download the app, choose your plan, and surf the internet. You can contact the Saily customer support team via live chat or email if you encounter any issues.
As a product backed by the reputable NordVPN brand, Saily benefits from the company's focus on security and privacy. Users praise its easy installation process, affordable pricing, and reliable coverage across the world.
Download the Saily eSIM app
You can get Saily on Google Play and the App Store or by scanning the QR code.
4.7 rating
(35,487+) reviews
4.7 rating
(61,942+) reviews
Frequently asked questions about eSIMs for Japan
Refer a friend, get free Saily credits!
Invite your friends to use the Saily eSIM app and get US$5.00 in Saily credits for every successful referral.