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 ...

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 ...

Phones that take two SIM cards were a small trend at Mobile World Congress. Here's why that's a good thing. Kent was a senior managing editor at CNET News. A veteran of CNET since 2003, he reviewed ...

The SIM cards that fit into those tiny slots in your cell phone and tell your cellular network to whom your calls are to be charged come in four different sizes. With the only real difference between ...

Unlike the dual SIM variants of the Sony Xperia XZ and XZs, the Xperia XZ Premium dual won't be featuring a hybrid SIM tray. The device will instead let you use two SIM cards and a microSD card ...

If you’ve bought an iPad with 4G/cellular capabilities (we discuss whether that’s a good idea in our 2015 iPad buying guide) or a new iPhone, you need to buy and install a SIM card. Here, we explain ...