As the iPhone Air goes eSIM-only, and some of the best Android phones also drop the SIM card tray, here's a look at the eSM, ...

Apple is escalating its war on physical SIM cards with iPhone 17 and iPhone Air — but I don't want to give up the physical ...

The sim card that exists inside your phone is what connects your phone to your specific cellular network. For most of us we might not even realize it’s there. When we get a new phone from our carrier, ...

If you’ve ever upgraded your phone, you likely know what a SIM card is and what it’s for. In short, a SIM card is a small chip that lets you connect to your carrier’s network. While physical SIM cards ...

These two ways of connecting your phone to a cellular network are very different. We tell you about each and how you can switch from one to another. I started my career with CNET all the way back in ...

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

The Universal Subscriber Identification Module, known as USIM and SIM, is evolving. The traditional plastic card-based SIMs have been shrinking in size, and now, embedded SIMs or eSIMs are being ...