Japan eSIM
Instant mobile data in Japan. No roaming fees, no physical SIM. Plans from $1.80.
Choose your data plan
Not sure how much data?
Tell us about your trip and we'll suggest a plan.
1 Day
3 Days
5 Days
7 Days
10 Days
15 Days
30 Days
Regional Bundles
These multi-country plans also cover Japan — great if you're travelling beyond one destination.
Good to know about your Japan eSIM
- Kwetu offers 15 data plans for Japan, so you can match your plan to your trip length and data needs.
- Prices range from $1.80 to $43.20, depending on how much data and how many days you need.
- Plan validity ranges from 1 to 30 days.
- You'll connect via KDDI while in Japan.
Frequently asked questions about your Japan eSIM
After purchase, you'll get a QR code by email and in the app. Scan it to install the eSIM, then turn it on when you land in Japan — no store visit or physical SIM swap needed.
Your plan activates the moment your eSIM connects to a supported network in Japan, not the moment you buy it — so you can install it in advance and it won't start counting down until you actually arrive.
No. Kwetu eSIMs don't require local SIM registration or ID checks — just install the eSIM and connect.
Yes. Once your eSIM is active, you can buy a top-up directly from the My eSIMs page in the app or on the web, without buying a whole new eSIM.
The largest plan is 20 GB for $12.45, valid for 30 days — good if you're a heavy data user or staying in Japan for a while.
This specific plan covers Japan only, but if you're visiting other countries too, check the regional bundles on this page that include Japan.
Your Japan eSIM connects via KDDI, giving you reliable data throughout your trip.
Most phones from the last few years support eSIM, including iPhone XS and later and most recent Android flagships. Check your phone's Settings under Mobile/Cellular Data for an "Add eSIM" option to confirm.
Use the calculator above — tell us your trip length and how you'll use data, and we'll recommend a plan.