eSIM stands for “Embedded SIM,” and that means it's a part of your device — not removable, like a traditional SIM card.
How is an eSIM different than a SIM card?
A SIM card gives a device the ability to make calls and send texts. When you switch from one provider to another, they'll give you one of *their* SIM cards, and that's how you switch networks.
An eSIM also gives your device the ability to connect to a network, except it's using a software-based version of the old-fashioned physical cards.
So both eSIMs and SIM cards work the same way, except an eSIM can't be taken out, dropped, and crushed on the floor of a crowded airport. (Don't ask us how we know this.)
You might also want to know ...
- Does my device support eSIM technology?
- How to install an eSIM on an iOS device
- How to install an eSIM on an Android device
- How do I switch between eSIMs?
- How do I top up my eSIM data package?
- How do I make calls with a data-only eSIM?