ENSQ
Setup guide

Install your eSIM in
under a minute.

Installing a Horizon eSIM takes about a minute and one QR code. Set it up at home over Wi-Fi before you travel, then turn it on when you land — here's exactly how, on iPhone and Android.

At a glance
1

Get your eSIM

After you buy, Horizon emails you a QR code and an activation link — usually within a minute.

2

Add the eSIM

Open your phone's eSIM settings and scan the QR code (or tap the link). The plan installs in seconds.

3

Turn on data

When you arrive, set the Horizon eSIM as your data line and switch its data roaming on — that just lets it use the local network. No roaming fees.

Before you start
  • An eSIM-compatible, carrier-unlocked phone — most phones from the last few years qualify.
  • 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)

  1. 1
    Open Settings → Cellular

    Go to Settings, then Cellular (or Mobile Data).

  2. 2
    Tap Add eSIM

    Choose Add eSIM, then Use QR Code.

  3. 3
    Scan 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.

  4. 4
    Label the plan

    Name it something like “Horizon travel” so it's easy to tell apart from your main line.

  5. 5
    Turn on data when you land

    Set the Horizon eSIM as your mobile-data line and turn Data Roaming on for it. There are no roaming fees — this just lets it use the local network.

On Android

  1. 1
    Open Settings → Network

    Go to Settings → Network & internet → SIMs (wording varies by phone).

  2. 2
    Add a SIM

    Tap Add SIM, then Download a SIM instead / Add eSIM.

  3. 3
    Scan the QR code

    Scan the QR code from your order email and confirm the download.

  4. 4
    Turn 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.

Can't scan the QR code? Use the manual option on the Add eSIM screen and paste the SM-DP+ address and activation code from your order email.
Last updated June 2026
FAQ

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.

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