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Use dual SIM devices

Learn how to manage calls, texts, and data use with your dual SIM device.

A dual SIM phone is one that can have two active numbers, plans, or accounts. You get this convenience on one device because it has two separate SIMs.
  • A physical SIM: A plastic card inserted into your phone.
  • An eSIM: A digital SIM you download to compatible devices.
You may have a physical SIM and an eSIM or multiple eSIMs.

Good to know: Some dual SIM devices are really Dual SIM, Dual Standby (DSDS) devices. With these, both SIMs can be active at the same time. Want to know more? Go to Device Support and choose your device. Want to know more? Go to Device Support and choose your device. Select Device info and look for eSIM

Ready to activate your device? Learn how

You’ll have to choose which phone number you want to use before sending a text, picture, or video message. But you can get messages from either number at any time.

Using data
With some devices, you may have to toggle between default services. But other devices may offer the option to switch services based on the SIM used for active calls. You can find this option in your device settings.

Connected to Wi-Fi®? Your device will use it for both numbers (even if you’re on a call).

To make a call: Choose the phone number you want to use before you call. Or, allow the phone to default to the last number used. You can put a call on hold for one number and place a call from the other, all on one device.

Already on a call? You’ll get a notification for incoming calls on the number you’re using. Plus, incoming calls will ring on your second line.

Heads up: Have FirstNet®? You can buy dual SIM devices, but if you activate the second SIM, it may interfere with your FirstNet connection in some instances.

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