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, short for Subscriber Identity Module, have become a universal aspect of modern smartphone usage, but the ...

Have you ever wondered exactly how a SIM card works? We’ll help you understand why your phone needs one and what they do to keep you connected. Image: TalkAndroid Editorial Note: Talk Android may ...

If your new phone no longer supports SIM cards, or you don't want to use them anymore, you can convert to eSIM instead. I started my career with CNET all the way back in 2005, when the (original) ...