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How it works

From booking your trip to getting online abroad, in five steps.

  1. 1

    Plan the trip

    Once you know where and when you're going, the only thing left is data. No queueing at an airport SIM counter.

  2. 2

    Choose and buy

    Pick your destination and how many days, choose a plan, and pay. No account needed — about three minutes. Your QR code arrives by email right away.

  3. 3

    Add the eSIM before you leave

    For most plans, your days start when the eSIM comes online at your destination — adding it does not start the clock. Add it before you leave, so you land ready to go.

    Connect your phone to Wi-Fi first — downloading the eSIM needs a connection.

    1. Open your order page from our email (“Open my eSIM”).
    2. Tap “Install on this device” and it installs itself.
    3. If it doesn't, install it from the QR code instead.

    Products activate differently. For some, the clock starts the moment you add the eSIM; others need you to dial a short number after you arrive. Always check the activation method on the product page and in your QR email.

  4. 4

    Switch it on when you land

    After you land, turn on the eSIM you installed and make sure Data roaming is ON. That is what connects you to the local network — and for most plans, this is when your days start. A few products also need you to dial a short number once you arrive; you will find it in your QR email and on your order page.

    Turn your existing SIM's line OFF. If the settings are wrong, that SIM can run up expensive roaming charges. If you do need to keep using it while travelling you can leave it on — just remember the roaming charges still apply.

  5. 5

    Then just travel

    Maps, messages — everything works just like at home. Your existing number stays active, so you won't miss a call.

Standard activation: add the eSIM on Wi-Fi before you leave, then switch on the eSIM and data roaming after you land

A few products activate differently — your product's own flow is shown on its product page and your order page.

If something goes wrong

Check that your device supports eSIM and is not SIM-locked.
Do not delete the eSIM.
If it won't install, or it installs but won't connect, leave it in place. Once deleted it cannot be reissued or refunded. Get in touch with us before you change anything.
Having trouble? Message us on LINEAdd us as a friend and send your order number and what you're seeing. A real person will get back to you.
How it works — from checkout to getting online | eSIM.co.jp