The interchangeability of Subscriber Identity Module (SIM) cards between Android and iOS devices is a common inquiry. A SIM card stores information enabling a mobile device to connect to a cellular network. Functionally, SIM cards from Android phones and iPhones serve the same purpose: authenticating the user’s account with the mobile carrier.
The benefit of SIM card compatibility lies in the potential for ease of device switching. Users may wish to move their cellular service quickly between devices. Historically, this process required contacting the carrier to activate service on the new device, often involving a visit to a store or a waiting period. The portability of the SIM card streamlines this transition.