What is a SIM Card?

A SIM card is a tiny chip with all the info your device needs to hook up to Boost Mobile. Just pop it into your phone, and you're set to make calls, text, and surf the web.

Each Boost Mobile SIM Kit has all three sizes (nano, micro, and standard), so your device will have the right fit.

Take a peek at our SIM card installation guide.

What's an eSIM?

An eSIM is a digital SIM that ditches the need for a physical card. You can quickly and easily transfer or get a new cellular plan, all online. Plus, manage multiple eSIMs on one device for dual numbers. It's safer too—no one can swipe it if your phone goes missing.

Download your eSIM via Wi-Fi and you'll be on Boost Mobile's network in a snap.

Learn how to download and install your eSIM.

How long will it take to activate my phone?

In most cases, activation just takes a few minutes.

What is a dual SIM?

Dual SIM lets you have two active phone numbers on your device at the same time. For instance, you can use one for business and another for personal use. It's also handy for adding a local data plan when you travel outside the US.

Once you activate your second plan, you can label your plans, set your default number for voice and data and customize preferences between your two phone numbers.