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 ...

Molex’s micro-SIM push-pull card, measuring 12 by 15 mm, is 52% smaller than its predecessor, the Mini-SIM card. It comes in 1.35-, 1.40-, and 1.45-mm heights, and features a wide finger area on the ...

Are you planning to use an unlocked phone as a pay per go? If so, easy to use, but with a bit of a runaround regarding data. Once I get home I can post how to unless someone else does. I currently ...

Posts from this topic will be added to your daily email digest and your homepage feed. The Verge has obtained detailed information on the so-called “nano-SIM” proposals from Apple, Nokia, and RIM. The ...

Vooma has announced an iPhone case with a backup battery and, more interestingly, an unlocked SIM slot. The case works with a jailbreak-only app that emulates the iPhone's native phone app to allow ...

Apple's new iPad tablets come with a handy feature that makes switching data carriers a breeze. The cellular models of the iPad Air 2 and iPad Mini 3 include the new "Apple SIM," which allows US and ...

In 2021, there were more than 14 billion cellular devices in the world even though there were only 7 billion people. The ubiquity of these devices – but especially smartphones – has come to define the ...