Your iPhone XS, iPhone XS Max, or iPhone XR, or later, can have two cellular plans, one on a nano-SIM card and the other on an eSIM. Find out which wireless carriers in your country or region offer cellular plans on an eSIM, either activated by QR code, in a carrier app, or by installing an assigned cellular plan. If your iPhone is unlocked, you can also use eSIM plans offered by other carriers.