rSIM is a new SIM tech that lets you pack a backup SIM in your SIM card. It claims to test your device’s connection directly from the SIM itself and switches providers automatically during disruptions ...

SIM cards have been an integral yet forgettable aspect of owning a smartphone over the past few decades. For most users, the SIM card defines the basic commercial relationship they have with their ...

What is a SIM card used for? A SIM card, or a subscriber identity module/subscriber identification module, is a tiny memory card that contains unique information and is linked to a particular network ...