Japan eSIM
KDDI/au
eSIM travel data plan for Japan — 1 GB of full-speed 3G/4G/5G data on the KDDI/au network, valid for 1 week.
1 GB
Data
1 Week
Validity starts on first connection
3G/4G/5G
Speed
KDDI/au
Network
180 days
To install after purchase installing early is safe
Install it any time within 180 days of purchase. Installing does not start your plan: the 1 Week validity begins when the eSIM first connects to a network in Japan. We recommend installing over Wi-Fi before you travel.
Plan Details
Japan 1GB 7Days (nonhkip)
Important Information
- Instant delivery via QR code
- No physical SIM card needed
- Keep your existing number for calls
- Data-only plan (no voice calls)
- Top-up available if you need more data
- Check device compatibility before purchase
- Trip Essentials kit included for Japan — see what's included
Your Trip Essentials kit for Japan
Free with this eSIM. Lands in your dashboard the moment you buy — so you can download maps and prep on wifi before you fly.
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Audio phrasebook 25 essential phrases in Japanese, with native-voice pronunciation
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Weather + forecast Today's conditions in Tokyo, plus a 3-day forecast for trip planning
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Offline-map prep 3 airports, 10 transit systems, 34 landmarks — all one-tap deep links into Google or Apple Maps
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Ride-hail apps 4 local ride-hail options curated for Japan — pre-install the right one before you land