Most of these phones feature a dedicated micro SD card slot, while some opt-in for a shared SIM slot. Regardless, it should ...

In the past, it was common to send greetings by mail or telephone. Today, communication without mobile networks and SIM technology is almost unimaginable. Giesecke+Devrient (G+D) highlights the key ...

There are three basic types of physical SIM cards: standard, micro, and nano. Steves explains that many phones — particularly iPhones — use the two smaller options, micro and nano. Luckily ...