You don't need a SIM card and cellular service to use most features of today's iPhones and Android phones. Most apps and services run just fine as long as you have access to WiFi, and you can even set ...

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.

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 ...

New iPhones come with a SIM ejector tool in the box, as long as it's included in the models available to your region (unless, of course, you have the new iPhones with eSIMs). It's a tiny metal object ...

The digital version of the SIM card, included on many newer phones, is set to become prevalent. It also offers affordable cellular data abroad. By Brian X. Chen Brian X. Chen is The Times’s lead ...