There's a very good chance your phone has a SIM card right now, especially since CDMA networks have been almost completely supplanted by LTE networks. Those cards allow your phone to connect to your ...

The newer eSIM technology, which is quickly becoming the standard on high-end phones, is safer and more convenient.

Apple continues to phase out the physical SIM card tray on iPhones, with the latest models relying solely on eSIM technology ...