Before you can activate your SIM, you need to know which type of SIM your device supports, allowing you to choose between an eSIM or a physical SIM card.

If you're a new Metro by T-Mobile customer who bought a SIM card online or in a retail store, you'll need to activate it, and we're here to help.

Activating a new Sim card isn’t always as straight forward as it sounds. This handy guide will take you though the process for the biggest networks.