MERCURY MOBILE

The 3G network is closing from March 2026 - check if your device needs upgrading. Learn more.

 

eSIM

Already with us for mobile? Switch to a Mercury eSIM today.

SWITCHING TO ESIM?

*currently available to existing Mercury mobile customers only

We're piloting eSIM for our current customers. If you're an existing Mercury Mobile customer and your phone is eSIM compatible, here's how to make the switch:

  • Getting a new eSIM-compatible phone? Moving to a new device is easy. We'll help you set up your eSIM.
  • Lost or stolen phone? We'll get you reconnected fast. Call us at 0800 10 18 10 to activate an eSIM on your replacement device and keep your original number.
  • Ready to switch your current phone to eSIM? If your current device supports eSIM, we can help you make the switch from your physical SIM.

To get started, make sure your phone is eSIM compatible, then contact us to begin the switch. Please note: we're not able to offer eSIM to new mobile customers at this time.

It’s a good idea to check whether your device supports eSIM first. You can easily do this by taking a look at our eSIM Device Compatibility page.

 

eSIM FAQ

What information does the link/QR code contain? This contains your eSIM activation data, including your mobile number and carrier profile information. It's unique to you and should not be shared with anyone else.
Can I activate my eSIM multiple times? No, once you've successfully activated your eSIM, the activation details becomes invalid for security reasons. If you need to transfer your eSIM to a new device, contact us and we'll send you a new one.
Can I have both a physical SIM and eSIM active at the same time? Yes, if your phone supports dual SIM functionality. Many modern phones let you use a physical SIM and eSIM simultaneously with different numbers. However, for your Mercury mobile service, you'll be switching from your physical SIM to eSIM for the same number, so you should remove your physical SIM once eSIM is set up.
Does eSIM use more battery or data than a physical SIM? No, eSIM uses the same amount of battery and data as a physical SIM card. Your phone's performance and data usage won't change when you switch to eSIM.
Is my phone locked to Mercury if I use eSIM? No, using eSIM doesn't lock your phone to Mercury. Your device remains unlocked (if it was unlocked before).