The SIM card is your device's ticket to the T-Mobile network! Learn how to buy one, install or replace it, and change or activate a SIM card/eSIM.

Shop the T Mobile Sim Card with features, pricing and reviews. Pair it with one of our high-speed 5G prepaid phone plans at T-Mobile Prepaid.

Jul 15, 2025 · What's the difference between eSIM vs. physical SIM? Learn about eSIM for iPhone, Samsung and other devices and see why it's a gamechanger.

Congratulations on your new purchase. Follow these steps to set up your new device, including transferring data and the SIM card from the old one.

T-Mobile has launched the first Standalone 5G service in America to give you a great network experience. To access Standalone 5G, the SIM card in your compatible 5G device must be …

Get a T-Mobile SIM card & plan. Once you get your SIM card, pick the plan you want, and your phone will be connected to our network.

Make sure you are connected to the T-Mobile network or Wi-Fi, then select your device type and follow the steps. If your device isn't listed or the steps don't work, choose your device on the …

If you purchased your device from T-Mobile or if you have a T-Mobile authorized device, please follow the steps outlined below to determine your eligibility for device unlocking.

Discover the latest T-Mobile prepaid phone plans, with unlimited talk and text, high-speed data on our 5G network. Learn more now!

You can activate T-Mobile Prepaid service on the web for your existing eSIM device, as long as it's been unlocked for use on other carriers' networks. To activate directly from your device, …