These two ways of connecting your phone to a cellular network are very different. We tell you about each and how you can switch from one to another.

SIM cards have become a universal aspect of modern smartphone usage, but the technology and meaning behind the name dates more than three decades.

If your new phone no longer supports SIM cards, or you don't want to use them anymore, you can convert to eSIM instead.

A dual-SIM setup lets you use one phone to make and receive calls and texts from two numbers. It's also super convenient and can save you serious cash when traveling. We show you how to use two SIMs ...

[RoyTecTips] shows us an ingenious hack which turns a single-SIM-slot phone into a fully functioning dual-SIM phone. All that’s needed for this hack is a heat-gun, solvent, micro SD card, nano SIM and ...

Dual-SIM wireless phones have been introduced by Nokia and LG Electronics for use in countries outside the U.S. The question remains whether they or other dual-SIM phones will ever catch on in the U.S ...

As many as one quarter of all mobile phones in use in the world today could be vulnerable to an SMS attack that allows hackers to gain full control of the phone. The vulnerability was discovered in ...