Find the cheapest eSIM for your trip to Japan
Enter your trip length and how you use your phone. We compare plans from 4 eSIM providers using prices checked on their official sites, written and updated from Japan.
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Shows the cheapest single plan from each provider that covers your whole trip. Prices in USD, checked 2026-10-09.
Cheapest plans for common trips
| Trip | Data | Cheapest plan | Price |
|---|---|---|---|
| 3 days | ~0.9GB (light use) | Saily 1GB / 7 days | $3.99 |
| 7 days | ~7GB (everyday use) | Nomad 10GB / 30 days | $16.00 |
| 14 days | ~14GB (everyday use) | Nomad 20GB / 30 days | $23.00 |
| 7 days | Unlimited data | Nomad Unlimited / 7 days | $25.00 |
| 14 days | Unlimited data | Nomad Unlimited / 14 days | $41.00 |
Prices checked on 2026-10-09 on each provider's official site. Unlimited plans may have fair-use limits; see each provider's page.
Guides
How to Set Up a Japan eSIM Before Your Flight (Step by Step)Install your Japan eSIM at home on WiFi, then switch it on when you land. A simple checklist so you're online before you leave the airport.eSIM vs Pocket WiFi vs SIM Card in Japan: Which Should You Choose?A plain comparison of the three ways to get mobile data in Japan, written from Japan. Who each option suits, what it costs, and the catches to know before you fly.Do You Need a Japanese Phone Number? (Travelers vs Long Stays)Most tourists don't need a Japanese phone number. Here's when you might, and which option includes one.
How we compare
We check each provider's official Japan page and record the price, data, validity and network. We don't accept payment for rankings: the calculator always sorts by price. Some links earn us a commission, which helps keep this site free.