Want a small phone with a price tag to match? This Mini 4G dual-SIM smartphone is fully functional but actually fits in your pocket. This little phone is about the size of a credit card, but comes ...

SIMs offer faster activation, better security, and easy travel SIMs, but drawbacks include harder transfers, carrier limits, ...

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 ...

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 ...

As smartphones have become more pervasive in our lives, we've all kind of been forced to pick up basic knowledge and terminology over the years. Where previously certain jargon would exclusively be ...

The eSIM standard was introduced in 2016, slowly gaining support as a secondary option in smartphones. Rather than holding ...

Buried in the latest iOS 12 beta is evidence that Apple is going to release the first iPhone that can have two SIM cards installed at once. But most people won’t have the option to buy this device.

Small, secure, and energy-efficient–the iSIM is the next generation of the SIM card. But what exactly is behind this ...