What Apple’s iPhone eSIM support will mean for you
Apple has included support for an electronic SIM (eSIM) standard in its new iOS 12.1 beta; unlike a physical SIM card in a smartphone, it will allow a user to virtually move between cellular carriers at will through the phone's "Settings" function.
The dual-SIM feature is offered in Apple's latest iPhones, the iPhone XS and iPhone XS Max – both of which were unveiled Sept. 12 – and the upcoming iPhone XR. According to Apple, to use two different carriers, the iPhone must be unlocked; otherwise, both plans must be from the same carrier.