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 ...

This new device from Brando claims to have the ability to unlock your iPhone on the SIM level by attaching to the card. It will work with any firmware, but keep in mind that activation is required. So ...

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 ...