eSIM for iPhone: What you need to know
This article provides information on using an eSIM in eligible iPhone models.
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What is eSIM?
An eSIM is an embedded SIM card that removes the need for a physical SIM.
eSIM in the iPhone allows you to use two phone numbers on the same phone at the same time; one using the physical SIM slot and one using the eSIM. This means you can make and receive calls from two different mobile numbers without the need to switch between SIMs / phones.
eSIM is a form of dual SIM. You can read more about dual SIM here.