Apple's iPhone 14 brings concept of eSIM card

a SIM card has been part of the equation.

The now tiny, nano-sized version of the Subscriber Identity Module (SIM)

it provides a form of digital identity that authenticates or verifies your phone to the network,

Not surprisingly, the technology associated with a SIM card has shrunk over time.

It is a version referred to as an eSIM, or embedded SIM.

Apple first introduced eSIMs into the iPhone starting with the XS

functionally, physical SIMs and eSIMs do the exact same thing.

there are new opportunities to be aware of with eSIMs