How to Switch to eSIM From a Physical SIM on iPhone and Android

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 and out by ejecting a SIM card tray from your phone. Most modern phones, however, also support eSIM. Instead of a physical card, eSIM is embedded directly into the phone’s circuitry and the carrier information is programmed remotely via software.

This allows for a few conveniences, such as letting you…