Apple today announced that its new iPhone Xs and iPhone Xs Max will be the first to support dual SIM cards. Rather that include the space for two physical SIM cards in the iPhone Xs and Xs Max, the phones will include support for one physical SIM and one eSIM, an electronic SIM card that can be programmed with carrier service. The eSIM will not be accessible to those purchasing the Xs/Xs Max right away. Apple says an update to iOS 12 will enable the eSIM later this year. Using the eSIM and physical SIM together will not be as simple as it would be to use two physical SIM cards. “To use two different carriers, your iPhone must be unlocked,” explained Apple on its web site. “Otherwise, both plans must be from the same carrier. If a CDMA carrier (Sprint or Verizon) provides your first SIM, your second SIM won’t support CDMA.” Apple says the eSIM can serve as your only cellular plan if you don’t have access to a physical SIM card. Otherwise, the main cellular plan will be attached to the physical SIM and the second to the eSIM. Apple says with two active carrier accounts on a single iPhone, owners will be able to select primary and secondary accounts, set one for calls/texts and the other for data, or use both lines for calls, texts, and data. AT&T, T-Mobile, and Verizon will support the eSIM, but Sprint will not. Apple warns that the eSIM may be disabled when purchased from some carriers.
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