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 ...

Thanks to a small plastic adapter, iPhone owners can take their micro-SIM card and use it with another cell phone. Kent was a senior managing editor at CNET News. A veteran of CNET since 2003, he ...

I know it might seem like a strange request, but the current carriers have been giving out terrible quality SIM card adapters. They fall apart after a couple of insertion/removal cycles. And due to ...

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 ...