An eSIM is like a normal SIM, except that it is already electronically built into your device and only needs to be activated. After activation, you use the eSIM for your data volume and continue to use the physically built-in SIM for making phone calls.
Here are some of the many ways it makes sense to use an eSIM:
The majority of current smartphones and tablets support eSIM. A complete list of eSIM-enabled devices can be found here. In addition, the following conditions must be met: Roaming must be activated on your device and there must be no SIM lock.
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