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 ...

Apple’s new iPhone Air is the first smartphone to be shipped globally with eSIM compatibility only. Is this beginning of the ...

A dual-SIM setup lets you use one phone to make and receive calls and texts from two numbers. It's also super convenient and can save you serious cash when traveling. We show you how to use two SIMs ...

Using two SIM cards, or enabling a dual-SIM setup, can be helpful when you need two separate phone plans on a single device. It easily lets you consolidate personal and work numbers on one phone, for ...

The iPhone Air will only have an eSim - will other phone makers also shift away from the familiar - but fiddly - plastic ...