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 ...

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 ...

Cutting a Micro SIM down to a Nano SIM for use with the iPhone 5 will soon be easier thanks to the Noosy Nano SIM cutter tool. The iPhone 5 uses a new Nano SIM standard that is smaller than the Micro ...

When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence. Matt Burns is a longtime technology journalist, now Editorial Director ...

Adam Z. Lein has been a tech journalist at Pocketnow since 2002. He's also been a photographer since 1995 and a web developer & graphic designer since 1997 while working on the DEC intranet. He's also ...