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 ...

If you don’t fancy using a meat cleaver to turn your SIM card into a micro SIM card for your new Apple iPad, then you may want to check out this cool tool which does it for you, the Cut My SIM. The ...

Find out how to trim your own micro-SIM card for use in phones that require this new format. Sharon Profis Former Vice President of Content, CNET Studios As vice president of CNET Studios, Sharon led ...

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 ...

If you’ve bought an iPad with 4G/cellular capabilities (we discuss whether that’s a good idea in our 2015 iPad buying guide) or a new iPhone, you need to buy and install a SIM card. Here, we explain ...

We already know that Apple is trying to develop a smaller SIM card for mobile phones and have it adopted as the industry standard SIM card for all devices. This initiative was confirmed a while back ...

If you’ve ever upgraded from one cell phone to another, you have likely had to swap your SIM card: the tiny chip that pops into a storage slot in your device to connect you to your carrier’s cellular ...