What is an eSIM?

An eSIM is a SIM built into your phone

Instead of inserting a plastic card, you download a mobile plan to your phone, usually by scanning a QR code. A phone can store several eSIMs and switch between them in its settings.

How a travel eSIM works

A travel eSIM is a prepaid data plan for the country or region you’re visiting. You buy it online, install it before you leave, and it connects to a local partner network when you arrive.

The validity starts the first time it connects abroad, so you can install it days in advance.

Travel eSIM or roaming?

Roaming uses your home plan abroad, and many providers charge daily fees or per-megabyte rates outside your allowance. A travel eSIM is prepaid: you pay a fixed price up front and can’t run up a bill.

Check your own provider’s roaming charges to compare.

Travel eSIM or a local SIM card?

A local SIM means finding a shop after you land and swapping out your usual SIM. A travel eSIM is ready before you fly and sits alongside your usual SIM, so you keep your number for calls and texts.

Will it work on my phone?

Your phone needs to support eSIM and be carrier-unlocked. Check your phone before you buy.

Installing a travel eSIM

After you buy, you get a QR code and an install link. On a recent iPhone you can install with one tap; on Android you scan the code from another screen. The help centre has step-by-step guides.

Can I keep my number?

Yes. Travel eSIMs are data only, so your usual SIM stays in your phone for calls and texts. Turn off data roaming on your usual line so your home provider doesn’t charge you, and use apps like WhatsApp or FaceTime to call over data.