If you’ve ever had the nightmarish experience of trying to retrieve all your peeps’ phone numbers after you lost your phone, you may want Think Geek’s SIM card backup gadget. The device has 16KB ...

Every mobile phone requires a SIM to work. It can either be an eSIM or a removable SIM. The average person knows that a SIM card is what allows them to connect to the service provided by a network ...

Japanese carrier Docomo has announced an interesting concept design that could change the way we use mobile devices: a wearable that takes the SIM out of your phone and puts it onto your wrist to ...

In this Ask Maggie, CNET's Marguerite Reardon advises a reader looking to use a SIM card from a tablet to get data-only wireless service on his smartphone. Marguerite Reardon Former senior reporter ...

What is a SIM card used for? A SIM card, or a subscriber identity module/subscriber identification module, is a tiny memory card that contains unique information and is linked to a particular network ...