Japan eSIM plans
4 networks
Get a travel eSIM for Japan and get online the moment you land — on local networks, from $2.99 with 30% off.
Networks in Japan
Your eSIM automatically connects to leading local networks:
- NTT Docomo5G
- SoftBank5G
- au by KDDI5G
- Rakuten Mobile4G
- An eSIM QR code by email, instantly
- Activation on arrival — no roaming charges
- Easy top-ups whenever you need more data
Your Japan eSIM, explained
A Roamly eSIM in Japan latches onto NTT Docomo, SoftBank, au by KDDI, or Rakuten Mobile, with 5G blanketing Tokyo, Osaka, Kyoto, and the major corridors. Coverage is famously thorough — even most rural valleys and onsen towns have signal — but one predictable interruption is the shinkansen: long mountain tunnels on routes like Tokyo to Kanazawa or through the Seikan tunnel will briefly cut data, which is normal, not a fault with your plan.
Two local wins: you don't need any airport QR kiosk or in-person pickup — the eSIM installs over the air before you fly, so you walk out of Narita or Haneda already online. And for transit, load a digital Suica into Apple/Google Wallet and tap through Tokyo's gates and convenience stores without fumbling for cash. Just note Suica top-ups and some setup steps want a working connection, so install your eSIM first.
Japan eSIM plans
Data-only plans that activate on arrival — every plan has a 30% discount applied.
Data plans
Unlimited data
Why buy your Japan eSIM with Roamly
Trusted local networks
Connect to Japan's leading carriers with 5G where available — no throttled second-rate routes.
30% off included
Every Japan plan comes with a 30% discount, applied automatically — no codes, no markup.
Ready before you fly
Buy now, install in minutes, and your data is live the moment you reach Japan.
How to set up your Japan eSIM
- 1
Buy online
Pick a plan above and check out. Your eSIM QR code is emailed instantly.
- 2
Install the eSIM
Open your phone settings, add an eSIM, and scan the QR code over Wi-Fi before you travel.
- 3
Connect in Japan
Select the eSIM for data on arrival — most plans activate automatically when you land.
Will it work on my phone?
Roamly eSIMs work on most phones released since 2019 — recent iPhone, Samsung Galaxy, Google Pixel and more. Your device must be eSIM-capable and carrier-unlocked.
Japan eSIM — FAQ
How much does an eSIM for Japan cost?
Plans for Japan start from $2.99, with larger and unlimited options available. Every plan already has a 30% discount applied.
Which networks will I connect to in Japan?
Your eSIM connects to leading local carriers in Japan, using 5G where it's available, so you get data just like a local SIM.
When should I install my Japan eSIM?
Install it as soon as you buy. Most plans only start counting once you arrive in Japan and connect to a local network, so installing early is safe.
Will my phone work with an eSIM in Japan?
If your phone is eSIM-compatible (most models from 2019 onward) and carrier-unlocked, it will work in Japan.
Can I make calls with the eSIM in Japan?
Our travel eSIMs are data-only, but you can call and message over the internet using apps like WhatsApp, FaceTime, or Telegram while connected in Japan.
Do I lose signal on the shinkansen bullet trains?
Briefly, yes — long mountain tunnels cut data for a minute or two at a time. It resumes automatically; it isn't a problem with your eSIM.
Can I set up a Suica card with my eSIM, and do I need an airport kiosk?
You can add Suica to Apple or Google Wallet and top it up online once your eSIM is active. No airport pickup or QR kiosk is needed — the eSIM installs before you land.
