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 ...

Despite its low profile, your phone's SIM card tool kit (also known as STK) is one of the most important things on the device, and whether you realize it or not, you probably use it every day. Built ...

So you're in a pinch, and you need to swap out the SIM card or install a microSD in your Android device, but you can't find the nifty little ejector tool that came in the device's retail box. Fret not ...

An iPhone SIM card is a crucial component of the device as it is responsible for connecting you to your cellular network. However, it is also prone to damage or misplacement. In times of need, you ...

If you’ve lost the SIM ejector tool that comes with the iPhone, you can still open the iPhone SIM tray with some workarounds. Here’s how. If you frequently take international trips it probably means ...

Just in time for the iPhone 5s, Straight Talk now supports LTE on the AT&T SIM cards which sell for $7 online and can be cut down to fit the iPhone 5s’ nano-SIM card slot. Straight Talk AT&T SIM cards ...