What’s a SIM card?
A SIM card is a small plastic card with a computer chip that slots into your phone. It holds information, including your phone number, and allows you to connect with your network.
SIM cards come in three sizes: Standard SIM, microSIM, and Nano SIM. We sell a Multi-SIM card which contains all three SIM sizes, so if you change phones in the future, you won’t need to get a new SIM card.
SIM cards are transferable, so you can move them between unlocked phones, and you can also store phone numbers, SMS messages, photos and emails on them.
What does SIM stand for?
SIM stands for Subscriber Identity Module.
What is an eSIM?
An eSIM is a small computer chip embedded inside your phone which works exactly like a SIM card. It’s not a physical SIM card, so you don’t have to worry about the size of your SIM card or popping it into your phone – it’s pre-installed by your phone manufacturer. eSIMs are useful as they allow you to change providers without needing to order a physical SIM, and you can have more than one SIM on a single device, which means you can have two phone numbers on one phone. This is especially handy if you want one number for personal use, and one for business.