A SIM card, or subscriber identity module card, is essential component of any phone. It connects your device to a cellular network and stores vital information, including your phone number. Many ...

Once you’ve activated your iPhone with your carrier, it should continue to work on the cellular network without any problems as long as you’re within range of a tower. Nevertheless, the vagaries of ...

Sareena was a senior editor for CNET covering the mobile beat, including device reviews. She is a seasoned multimedia journalist with more than a decade's worth of experience producing stories for ...

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

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 ...

When Apple took the physical SIM card slot out of the iPhone 14 last year, it was pretty clear that it wouldn’t be coming back. So, it’s no surprise that none of this year’s iPhone 15 models sport a ...