Japan eSIM

Japan eSIM — Stay connected without a physical SIM

A Japan eSIM from Simsiz gives you instant access to local 4G/LTE mobile data the moment you land — no SIM card hunting, no airport kiosks, no contracts. Simply choose a plan, complete checkout, and scan the QR code in your phone settings.

All Japan eSIM plans include instant QR code delivery to your Simsiz dashboard. Your eSIM runs alongside your regular SIM so you keep your home number active for calls and messages while using local data in Japan.

How to activate your Japan eSIM

1. 1Create a free Simsiz account — takes under a minute.
2. 2Browse Japan eSIM plans and pick the right data size and duration.
3. 3Top up your balance and complete checkout securely via Stripe.
4. 4Open Settings → Mobile/Cellular → Add eSIM on your device and scan the QR code. You're online in Japan.

Frequently asked questions

Does eSIM work in Japan?

Yes. Simsiz offers 19 plans for Japan with 4G/LTE coverage across the major local networks.

How much does a Japan eSIM cost?

Plans start from $1.40. You can choose the data size and validity that best matches the length of your trip.

Which phones are compatible with a Japan eSIM?

All eSIM-compatible devices work — iPhone XS and later, Samsung Galaxy S20+, Google Pixel 3+, and most modern flagship phones.

Can I keep my number while using a Japan eSIM?

Yes. The eSIM runs alongside your physical SIM. Your home number stays active for calls and texts while the eSIM handles your local Japan data.

What happens when my Japan eSIM data runs out?

Top up your Simsiz balance and buy a new plan any time. Your eSIM stays installed — no need to re-scan.