How eSIM works
An eSIM is a SIM card built into your phone. Instead of inserting plastic, you install a data plan digitally — usually by scanning a QR code.
1. Check your phone supports eSIM
Most phones released from 2019 onwards do. On iPhone, go to Settings → General → About and look for an EID number. On Android, check Settings → Network & internet for an option to add an eSIM. Your phone must also be carrier-unlocked.
2. Buy before you travel
Install your eSIM while you still have reliable internet at home. Installing needs a connection; using the plan afterwards does not.
3. Install the eSIM
We email you a QR code plus manual details (an activation code and SM-DP+ address) in case you'd rather type them in. Scan or enter them in your phone's mobile-data settings.
4. Turn on data roaming for the eSIM
This sounds counter-intuitive, but travel eSIMs connect through partner networks, so data roaming must be enabled for the eSIM line only. Leave your home line's roaming off to avoid unexpected charges from your own carrier.
5. Validity starts on first connection
Your plan's validity period begins when the eSIM first connects to a network at your destination — not when you buy it. Buying early costs you nothing.
Good to know
- • Most travel eSIMs are data-only — no phone number for calls or SMS.
- • Your usual apps (WhatsApp, iMessage, email) work normally over data.
- • An eSIM can usually only be installed once, so don't delete it mid-trip.
- • Some destinations legally require identity verification before activation.