Android setup

How to set up a Japan eSIM on Android

Most recent Samsung and Pixel phones take an eSIM. Check yours in ten seconds, install at home, and three switches finish the job in Japan.

Check your phone first

Dial *#06#. An EID line means the phone supports eSIM. The phone must also be carrier-unlocked: a locked phone refuses a foreign eSIM whatever its model. Some regional models ship without eSIM, so the EID check beats any model list.

Samsung Galaxy, exact taps

On home Wi-Fi: Settings, Connections, SIM manager, Add eSIM, then scan the QR from our email. Name the new line Japan. Do not delete it afterwards; a QR installs once.

Google Pixel, exact taps

On home Wi-Fi: Settings, Network and internet, SIMs, then add an eSIM and scan the QR. The wording differs slightly between Android versions; look for the option to download or add an eSIM.

The three switches after landing

Turn the Japan line on. Set it as the mobile data SIM. Turn roaming on for that line only, and keep your home line's data off. Bars on KDDI 4G or 5G usually appear within a minute.

If data will not start

Airplane mode on for ten seconds, then off. Check the data SIM and its roaming. Restart once. If bars show but nothing loads, ask support for the APN settings. Still stuck: the rescue card and a human on chat.

Straight answers

Does my Samsung support eSIM?

Dial *#06#. If an EID line appears and the phone is carrier-unlocked, it supports a travel eSIM.

Do I need to set an APN on Android?

Usually not; it sets itself. If bars show but no data loads, message support and a human sends the right APN settings.

Can I keep my home number on Android?

Yes. Keep the home SIM on for calls and texts with its data off, and set the Japan eSIM as the data SIM.