What an eSIM actually is
A SIM built right into your phone — no physical card to slot in. You activate it by scanning a QR code, usually inside a couple of minutes.
Checking your own phone
Dial *#06#. An EID number next to your IMEI means you're sorted.
Phones that support it
iPhone XS onward, Galaxy S20 onward, and Pixel 3 onward all manage eSIM fine.
Across all seven networks
Every network on this site supports eSIM on the right devices, though which plan tiers allow it — and which app handles setup — varies. Check the specific network's page for that detail.
Running two numbers at once
Phones that handle two active eSIMs can keep your usual UK number live while a local data eSIM handles things abroad.
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