You're probably already familiar with the SIM card, a tiny chip in your phone that connects it to your cell phone carrier of choice. For years, this chip was on a physical card that you could swap in ...

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.

With the ability to Setup eSIM on iPhone 17, switching between carriers or plans is as simple as a few taps — ideal for ...

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