Discover eSIM

A digital SIM card for your devices.

If you’re upgrading your phone or switching from a physical SIM: You can request an eSIM here.
If your phone supports on-device transfer: You can convert to an eSIM directly through your phone settings: Settings > Convert to eSIM and follow the on-screen prompts.

If your new device is On Device Activation (ODA) compatible - meaning it can activate your eSIM without a QR code, your eSIM will automatically activate when you set up your phone. 
If your device is not ODA compatible, you’ll receive a QR code by email. Simply use your phone to scan the QR code and follow the on‑screen instructions to complete your eSIM setup.

Benefits of eSIM

It’s easy to switch with Three

You can make the switch by phone or online—simply visit our Replace my SIM page and request an eSIM.

Allows you to have more than one SIM

Using an eSIM allows you to have two phone numbers active at the same time. You can make and receive calls and texts from either number seamlessly.

eSIMs are more sustainable

Since there you won’t need a physical SIM card, there's no plastic, postage or packaging to worry about. An eSIM is the more sustainable option.

Even more secure

eSIMs have a number of advanced security features, including resistance to unauthorised cloning and tampering. Users can have peace of mind knowing that their information is protected.

Seamless travel connectivity

Visiting Ireland? eSIM is a quick, easy and cost-effective way to stay connected. Get activated with only a few clicks. No need to visit a Three store or wait for your SIM to arrive.