Install your eSIM
before you travel.
Set up your Horizon eSIM over reliable Wi-Fi before you travel. This guide covers QR-code and manual installation, choosing the data line, and the settings to check on iPhone and Android.
Install your eSIM in three steps
Get your eSIM
After checkout, open the QR code or activation details supplied in your email or account.
Add the eSIM
Open your phone's eSIM settings, then scan the QR code, use the activation link if supported, or enter the manual details.
Turn on data
At your destination, set Horizon as the data line and follow the plan instructions for data roaming. Keep roaming off on your primary SIM if you want to avoid home-carrier data charges.
- An eSIM-compatible, carrier-unlocked phone. Check the exact model and sales region before purchase.
- A Wi-Fi connection to install. Do this at home before your trip.
- Your Horizon QR code or activation link from the order email.
On iPhone (iOS)
- 1Open Settings → Cellular
Go to Settings, then Cellular (or Mobile Data).
- 2Tap Add eSIM
Choose Add eSIM, then Use QR Code.
- 3Scan the QR code
Point the camera at the QR code from your order email. Reading this on the same phone? Tap the activation link instead.
- 4Label the plan
Name it something like “Horizon travel” so it's easy to tell apart from your main line.
- 5Turn on data when you land
Set Horizon as your mobile-data line and follow the plan instructions for Data Roaming. Keep data roaming off on your primary SIM if you want to avoid home-carrier charges.
On Android
- 1Open Settings → Network
Go to Settings → Network & internet → SIMs (wording varies by phone).
- 2Add a SIM
Tap Add SIM, then Download a SIM instead / Add eSIM.
- 3Scan the QR code
Scan the QR code from your order email and confirm the download.
- 4Turn it on when you land
Enable the Horizon eSIM, set it as your mobile-data SIM, and turn roaming on for it so it connects to the local network.
Install questions, answered
When should I install my eSIM?
Install at home over Wi-Fi before you travel, then turn the data line on when you land. Data is only used once the eSIM connects to a local network.
Do I need Wi-Fi to install?
Yes — installing downloads the eSIM profile, so you need Wi-Fi or an existing connection. Once installed, it works on the local network without Wi-Fi.
Can I keep my normal number?
Yes. Your physical SIM stays in the phone for calls and texts on your usual number, while the Horizon eSIM carries your data.
Can I reinstall the eSIM if I delete it?
An eSIM can usually only be installed once, so don't delete the profile until your plan is finished. If you run into trouble, contact support before deleting anything.
What if I can't scan the QR code?
Use the manual entry option on your phone's Add eSIM screen and paste the SM-DP+ address and activation code from your order email.