What is an eSIM?

The term “eSIM” simply means embedded SIM card. There are no physical SIM cards involved and no physical swapping over required by you.

eSIM needs to be supported by the network or carrier and enabled by them, so for your new iPhone XS or XS Max you’ll need to choose an eSIM-compatible network for the second SIM support. 

An eSIM is basically a small chip inside your phone and works in a similar way to the NFC chip inside your phone.

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