Japan eSIM Data Plans
3 GB / 30 days
$3.90
Why travellers choose AeroSims
QR code by email in seconds
Validity starts on arrival, not at purchase
Connects to local partner networks
Need more? Buy another plan anytime
Delivered in secondsNo passport, no SIM swap24/7 support
Network & coverage
Stay connected in Japan
Your eSIM connects to NTT Docomo, SoftBank and au for fast 4G/5G across Tokyo, Osaka, Kyoto and even along Shinkansen bullet-train lines.
Popular destinations covered
TokyoOsakaKyotoYokohamaSapporoFukuoka
NTT Docomo
Fast 4G/5G on NTT Docomo across Japan's cities and main routes.
SoftBank
Fast 4G/5G on SoftBank across Japan's cities and main routes.
au by KDDI
Fast 4G/5G on au by KDDI across Japan's cities and main routes.
Choose your data
The plan that fits your trip
Fixed data, one payment — pick the size that matches how you travel.
3 GB
30 daysA short trip — maps, messaging and ride-hailing.
5 GB
30 daysA week away — daily chat, photos and navigation.
MOST POPULAR
10 GB
30 daysTwo weeks of travel — social media, maps and video calls.
20 GB
30 daysHeavy use or a full month — streaming, hotspot and remote work.
50 GB
Long stayLong stays and work trips — stream, tether and share without counting.
Traveller's guide
Staying connected in Japan
Coverage in Japan is among the best in the world — solid signal deep inside metro tunnels, department stores and along the Shinkansen. Mountainous rural areas and remote islands can thin out, so download offline maps for hikes.
You no longer need to rent a bulky pocket Wi-Fi at the airport. An eSIM installs before you fly and connects the moment you land at Narita, Haneda or Kansai.
Japan runs on apps: LINE for messaging, Google Maps for the famously complex train system, and GO for taxis. All work instantly on your data.
What's included
Everything you need in Japan
Flexible data plans
From 3 GB to 50 GB — pay only for what you need.
4G/5G network
Connects to our local partner network as soon as you land.
Ready for local apps
Works seamlessly with LINE, Google Maps, GO Taxi and everything else you use.
Instant delivery
Your QR code arrives by email in seconds — no shipping, no wait.
Need more data?
Buy another package for the same destination — it arrives by email and installs next to the one you have.
Works on arrival
Validity starts on first connection — install ahead with zero waste.
Device support
Works on your phone
Almost every phone from the last few years supports eSIM. Not sure? Dial *#06# — if an EID number appears, you're good to go.
iPhone
iPhone XS, XR and every model since — including all iPhone 11, 12, 13, 14, 15 and 16.
Samsung Galaxy
Galaxy S20 and newer, Z Flip / Z Fold, Note 20, and most A-series from 2021 on.
Google Pixel
Pixel 3 and newer (Pixel 3a and later on all major networks).
Other Android
Most modern flagships from Motorola, OnePlus, Huawei, Oppo and more.
Why eSIM
AeroSims vs a local SIM vs roaming
| AeroSims eSIM | Local SIM | Roaming | |
|---|---|---|---|
| Ready before you land | |||
| Passport / ID needed | None | Required | None |
| Setup time | Under 2 min | 30–60 min queue | Auto (costly) |
| Keep your home number | |||
| Buy again from anywhere | ~ | ||
| Typical week of data | Fixed low price | Varies | $50–200+ |
How it works
Connected in 3 simple steps
1
Buy your package
Choose your data size and check out in 60 seconds. QR code emailed instantly.
2
Scan and install
Settings → Cellular → Add eSIM → scan the QR code. Under 2 minutes, done at home.
3
Land in Japan and connect
Switch on your eSIM and you're online from the first minute — no queue, no roaming.
FAQ
Questions, answered
Will the Japan eSIM work on my phone?
Yes, as long as your phone supports eSIM and is carrier-unlocked. That covers iPhone XS and newer, Samsung Galaxy S20 and newer, Google Pixel 3 and newer, and most modern Android phones. Dial *#06# to check for an EID number.
How fast is the data in Japan?
Your eSIM connects to our local partner network at 4G/5G speeds — fast enough for maps, video calls, streaming, social media and mobile hotspot.
Do I need a passport or registration?
No. There's no ID check, no paperwork and no SIM registration. You buy online, receive a QR code by email, and install it yourself in under two minutes.
When does my plan start?
Validity begins the moment your eSIM first connects to a network in Japan — not at purchase. You can install it days ahead of your trip with zero waste.
Can I add data to an eSIM I already have?
No — we don't offer top-ups. If you need more data, buy another package for the same destination. It arrives by email and installs alongside the eSIM you already have.
Can I keep my normal number for calls and texts?
Yes. The eSIM runs alongside your physical SIM, so your home number stays active for calls and bank codes while the eSIM handles data in Japan.
What happens when my data runs out?
Your connection simply pauses — no surprise bills, ever. To keep going, buy another package for the same destination.
Can I use it as a mobile hotspot?
Tethering is enabled on our plans and we don't add a hotspot limit of our own — shared data counts like your own use. Whether your device and the local network allow it is up to them, so we can't guarantee it.
Need unlimited data?
Skip the data cap — our Unlimited plan gives endless data for a fixed daily price.
Ready to explore Japan?
Choose your data above and get instant access — delivered to your inbox in seconds.
3–50 GB · 4G/5G · instant delivery
