The smallest subscriber identity module (SIM) card, which provides customer information for a cellular phone. See SIM card. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction ...

note that the SIM within this context usually refers to a nano-SIM card. It does not refer to the SIM technology per se — as an eSIM also includes SIM technology. It’s just not available ...

larger SIM card sizes are still in use too in some older devices, and in some devices that don’t need to make the most of their space. A nano SIM is the smallest removable SIM card size, and it’s also ...