Buy now, activate when you land
No clock ticking yetEverything you need for reliable data from the moment you land.
KDDI cover Tokyo, Kyoto, Osaka and Hiroshima and every major corridor between them — urban cores and highways alike.
Validity clock starts on first data use in Japan, not at purchase. Install at home — activate when you arrive.
Dual SIM means your regular number stays live. WhatsApp, iMessage, and all messaging apps work normally.
Share your connection with a laptop or travel companion — hotspot included on all Japan plans at no extra charge.
Running low on data? Top up your eSIM in seconds by creating an account. We’ll keep an eye on things for you and send an alert when you hit 50% and 80% usage.
Flat prepaid pricing — pay once, know exactly what you get. No bill shock, no hidden fees, no contracts.
Our Global eSIM covers Japan, Korea Republic of , China and Taiwan-Province of China in a single plan — no need to buy separate eSIMs for each country. One install, 4 destinations.
Travelling beyond Japan? Browse regional and nearby plans.
Or if your trip is only taking you to a single country, browse our full destination library or see the quick links beside for prominent countries in this regional bundle.
If you haven't used any data, you're entitled to a full refund — no questions asked.
Three steps — takes under two minutes.
Choose your data bundle and checkout. Your eSIM is delivered instantly by email — no waiting, no postage.
Install before you fly — all you need is Wi-Fi at home. No local signal needed to install.
Enable data roaming on your breeze eSIM. Plan validity starts on first use in Japan — not at purchase.
Full specification list for your Japan eSIM plan.
| Device requirement | eSIM-compatible and network-unlocked |
| Supported devices | iPhone XS+ · Samsung Galaxy S20+ · Google Pixel 3+ · iPad (select models) |
| Connection type | Data only — no regular voice calls or SMS |
| Hotspot / tethering | ✓ Yes, included on all plans |
| Speed | 4G/LTE and 5G where available* |
| Plan activation | Starts on first data use in Japan, not at purchase |
| Validity counted in | Calendar days from first use |
| Top-up | Available anytime via breeze website |
*5G access depends on local network rollout. Actual speeds vary by location and network load.
Watch how to install your Japan eSIM in under two minutes — covers iOS one-click install, Android setup, and QR code scanning.
Suica card, Shinkansen bookings, and Shibuya Crossing live cams all need data — the Navitime transit app is essential for the world's most complex rail network.
Temple circuit and Gion geisha district need data for timed-entry tickets — booking Fushimi Inari at dawn and finding hidden machiya teahouses reward connectivity.
Dotonbori street food and Universal Studios Japan need data — Tabelog restaurant reviews and last-minute USJ Express Pass bookings keep your trip optimized.
Peace Memorial audio guides stream on your phone — data helps with JR Ferry bookings to Itsukushima Shrine's floating torii gate on Miyajima Island.
Rated Great 4.2 / 5 · verified reviews
The eSIM was easy to install. It gave plenty of data and cost a reasonable amount. From Keflavik to Hofn I basically did not lose service once.
Easy to use and great coverage in Canada & USA for the price.
The internet quality of the eSIM was impressive, just as I had expected, and the setup process was extremely straightforward.
Our fixed plans offer high-speed data up to 5G where available. A set amount of GB to use over a selected number of days, not per day.
|
Plan |
Price |
|
30 days: 5GB |
$9.99 |
|
30 days: 10GB |
$13.99 |
|
30 days: 20GB |
$23.99 |
Save 10% when you buy two or more
[RATING, Excellent on Trustpilot (1830+ users)]
Everything you need to know about your Japan eSIM plan, from device requirements and payment options to speeds and top-up availability.
3G/4G/5G
1GB of high-speed data, up to 5 GB where available, per 24 hours. Thereafter, your data speed will be reduced and will reset on the next 24h period
*5G network access is dependent on local network coverage, and we cannot provide any assurances over actual achievable upload and download speeds.
This bundle will require a new eSIM. The selected eSIM can only be topped up with the same bundle it was originally purchased with.
KDDI
Japan's mobile infrastructure is anchored by three national operators: NTT Docomo, SoftBank, and KDDI (au). Your Breeze eSIM connects via KDDI's nationwide LTE/5G backbone.
KDDI (au) covers Tokyo, Kyoto, Osaka, and Hiroshima with 4G LTE and 5G in major urban zones and along major corridors, urban cores, and highways.
The validity clock starts on the first use of the data in Japan, not at purchase. Install at home and activate when you arrive.
Dual SIM means your regular number stays live. WhatsApp, iMessage, and all messaging apps work normally.
Share your connection with a laptop or travel companion. Hotspot included on all Japan plans at no extra charge.
Running low on data? Top up your eSIM in seconds by creating an account. We'll keep an eye on things for you and send alerts when you reach 50% and 80% usage.
Flat prepaid pricing: pay once, know exactly what you get. No bill shock, no hidden fees, no contracts.
Our Global eSIM covers Japan, the Republic of Korea, China, and the Taiwan Province of China in a single plan, no need to buy separate eSIMs for each country. One install, 4 destinations.
Or if your trip is only taking you to a single country, browse our full destination library or see the quick links beside for prominent countries in this regional bundle.
|
Your device |
Compatible |
|
Device requirement |
eSIM-compatible and network-unlocked |
|
Supported devices |
iPhone XS+, Samsung Galaxy S20+, Google Pixel 3+, iPad (select models) |
|
Connection type |
Data only - no regular voice calls or SMS |
|
Hotspot/tethering |
✓ Yes, included on all plans |
|
Speed |
4G/LTE and 5G where available* |
|
Plan activation |
Starts on first data use in Japan, not at purchase |
|
Validity counted in |
Calendar days from first use |
|
Top-up |
Available anytime via the Breeze website |
*5G access depends on local network rollout. Actual speeds vary by location and network load.
If you haven't used any data, you're entitled to a full refund - no questions asked.
Refunds processed within 3 business days back to your original payment method.
Breeze keeps you connected across Japan's busiest cities and most rewarding detours. Here's what that looks like on the ground:
Tokyo's transport system is incredibly efficient but can be overwhelming for first-time visitors. BreezeSim data keeps your Suica card topped up, lets you book Shinkansen tickets, and powers essential apps like Navitime and Google Maps, which provide real-time Tokyo Metro and JR East train information. Whether you're navigating Shibuya Crossing or finding your platform in Shinjuku Station, staying connected saves time.
Kyoto's famous temples, shrines, and historic districts are best explored with a reliable data connection. Use your phone to reserve timed-entry tickets where required, navigate the city's bus network, plan an early morning visit to Fushimi Inari, and discover hidden machiya teahouses tucked away in Gion's traditional streets.
From sampling street food in Dotonbori to spending a day at Universal Studios Japan, BreezeSIM data can help you make the most of Osaka. You can check Tabelog restaurant reviews, book last-minute Universal Studios Express Passes, navigate the city's subway system, and avoid missing out on popular attractions.
A connected phone enhances visits to Hiroshima's Peace Memorial Park with streaming audio guides and historical resources. BreezeSIM data also makes it easy to book the JR Ferry to Miyajima, check departure times, and navigate to the famous floating torii gate at Itsukushima Shrine.
eSIM stands for "embedded SIM", because everything you need is digitally built into your smartphone or tablet. Think of it as the evolution of the SIM card, it's just like your old SIM, but better! Now there are no tiny holes or bits of plastic to deal with, so you never have to think about swapping out SIM cards again. Wave goodbye to the old and say hello to the future of mobile connectivity!
You can't make regular network calls or send SMS with your eSIM, but you can keep your existing SIM active if you still want access to these services. Just make sure you confirm any charges with your network provider before you travel. And remember, while Breeze eSIM plans are designed just for data, you can still use messaging and voice apps like WhatsApp, Messenger, iMessage, and more. These apps all work great with the data connection your breeze eSIM provides.
Your eSIM is delivered instantly to your email after purchase, no waiting, no shipping. Setting up your eSIM is easy, and we'll send a step-by-step guide after purchase. Or, you can head to our eSIM installation guide here.
First, you need to make sure you've got a reliable internet connection, so make sure you're connected to Wi-Fi. Go to Settings > Mobile Data > Add Data Plan. This can vary by model, so if you can't see this option, find your steps here.
We'll send you regular updates, and you can check the data used on your eSIM in the My Account area of your Breeze login.
Yes. Breeze connects to KDDI, providing coverage across all major cities, suburbs, and well-travelled highways in Japan.
Japan eSIM connects to KDDI (au), one of Japan's three national 5G operators alongside NTT Docomo and SoftBank. Your device automatically connects to the strongest available signal.
Your validity begins when your eSIM first connects to a network in Japan, not when you purchase or install it. Install before you fly and activate when you land.
If you need more data while travelling in Japan, log in to your Breeze account, select your active eSIM, and choose the top-up option to add more data.
Absolutely. Your Japan eSIM provides excellent coverage in Tokyo, Kyoto, Osaka, and Hiroshima.
Setup help, troubleshooting, or account questions — we're here.
Before you checkout, let’s make sure that your device is eSIM compatible.
Find your device below to see if it is eSIM compatible. If your device is not listed you will not be able to install an eSIM. Not sure what your device model is? Click here to find out.
Device types
Check compatibility
Scan the QR code below with the device you plan to use.
