If you haven’t figured out how to sync up your cellphone’s contacts with your computer’s addressbook yet, using this USB SIM card reader/writer could be an easy way to do it. I know some of ...

The Royal SCR1 SIM card reader/writer is an ideal way to back up your SIM card contacts, though we wish it was a bit easier to use.

The Royal SCR2 SIM card reader accommodates only one SIM card at a time and it does not let you clear contacts directly from its memory.

We outline four simple methods to set up an iPhone so that it can be used without a SIM card, by a child or someone who doesn't have a mobile contract. And we show how to activate without a Wi-Fi ...

Want to use WhatsApp without a SIM card on your smartphone or tablet? It's actually possible! Here's how to get it set up.

SIM cards are so thoroughly integrated into our everyday lives that we don't pay attention to them anymore and do not understand what they are used for. In this article, we dig into the concept of SIM ...