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Japan eSIM plans

Start with Unlimited au (KDDI) 5G — Japan's premium network — or pick a daily-data SoftBank plan and trip length.

A traveler holding a connected phone with a Japanese city and shinkansen in the background

🆘 Help on the spot with Travel AI Rescue*optional

Pick the Basic or Premium guarantee at checkout and you get the eSIM “doesn't-connect” refund guarantee plus an emergency travel AI — help for theft, sudden illness, and SIM trouble, with auto-drafted police reports, insurance summaries, a valuables vault, and offline access to your eSIM setup guides. The AI stays with you for the whole trip even if your eSIM is refunded.
* Travel AI Rescue bought on its own does not include the eSIM refund guarantee.

See how Travel AI Rescue works →

Runs on the local carrier (SoftBank) — fast, stable native speeds

No ID or passport registration for most destinations — just scan the QR to activate

Track your data & expiry anytime in your account — and top up in a minute if you run low

A traveler using maps and reservations on a phone at a station, street and restaurant in Japan

Multi-carrier SIM — premium coverage

Not tied to one network. Connects to whichever of several Japanese carriers is strongest where you are — useful for rural areas, crowded events, and heavy travel days.

An abstract image of several mobile signals converging on a single smartphone