Japan eSIM — Instant Data from $4.99
Stay online the moment you land in Japan. Samth eSim ships prepaid data plans as a QR code you install in under a minute — no SIM swap, no roaming fees, no kiosk hunting at the airport.
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Coverage in Japan
Our Japan eSIM connects to the country's main mobile networks at native LTE/5G speeds. You're not roaming — you're on a local data plan, which is why pricing is honest and speeds are normal.
How your Japan eSIM works
Buy a plan in Japan's catalog, get a QR code by email instantly, and scan it with your phone's camera. Your eSIM sits alongside your home SIM, so calls and texts on your home number keep working while data routes through a local Japan network.
Most travelers spend 0.5–1 GB per day if they stick to maps, messaging and the occasional ride-share. Add 0.5 GB/day if you stream video on the move. Pick the plan that matches your trip length and habits — you can top up later without losing your QR.
Frequently asked questions
Will my phone work with a Samth eSim in Japan?
Any unlocked phone that supports eSIM (iPhone XS or later, Pixel 4+, Galaxy S20+, most modern Androids). It runs alongside your home SIM in a Dual-SIM setup.
Do I need to be in Japan to install?
No. Install at home before you fly, then enable the eSIM when you land. That's the whole point.
Can I make calls or send SMS?
Samth eSim plans are data-only. Use WhatsApp, iMessage, FaceTime, Telegram, or Signal for calls. Your home SIM keeps handling regular calls if you leave it on.
What if I run out of data in Japan?
Top up from the app — same eSIM, no new QR. If you'd rather buy a larger plan from the start, the 10 GB and 20 GB packs are the best value for trips longer than a few days.