SIM cards are all around us, and with the continuing growth of the Internet of Things, spawning technologies like NB-IoT, this might as well be very literal soon. But what do we really know about them ...

Detailed features and specs for the Samsung SGH-E316 / SGH-E317 for AT&T, AT&T Wireless. Plus discussion forum and photos ...

Detailed features and specs for the Samsung SGH-P107 for AT&T. Plus discussion forum and photos ...