How eSIM Works

A practical guide to using eSIM before and after you arrive in Japan.

An eSIM lets you activate mobile service without inserting a physical SIM card. If your phone supports it, this is one of the easiest ways to be online the moment you arrive.

Advantages

• No physical card swap
• You can buy and set it up before departure
• Some phones can keep multiple SIM profiles

Check compatibility

Most newer iPhones and some Android devices support eSIM. Check your phone settings before you buy.

How setup usually works

1. Buy a plan from the provider

2. Receive a QR code or activation code

3. Scan it in your phone settings

4. Turn the line on and confirm it works