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An eSIM is a digital SIM profile added to a compatible phone. It lets you install supported mobile plans without swapping a physical card; compatibility varies by model and sales region.

Compatibility depends on the exact model, sales region, carrier lock and firmware. Confirm that the phone is unlocked, check for an EID, and verify the exact model or variant on our supported devices page before buying.

Yes. Horizon installs alongside your home SIM as a second line. Your number stays primary; data routes through Horizon.

After purchase we email a QR code. Scan it with your phone camera (iOS) or in Settings → SIM manager → Add eSIM (Android). The full walkthrough lives on the How it works page.

Use manual entry. The same email contains an SM-DP+ address and activation code — paste those into the same Add eSIM screen.

Check the instructions in your account or contact support before trying to reinstall. Whether a deleted profile can be installed again depends on the product and provider rules.

Validity does not start until your eSIM connects to a supported mobile network at your destination, so you can install it before you travel. Check the plan details for any first-use deadline.

Toggle airplane mode off and on. Confirm Data Roaming is on for the Horizon line (this is normal for travel eSIMs). If still nothing, restart the phone.

Check whether the local network is 4G or 5G in your area. Horizon plans have no throttling.

We always refund the full amount you paid when you request it, whether your eSIM is unused, partly used or fully used. There is no time limit for requesting a refund.

We accept Visa, Mastercard and Maestro, plus the payment methods shown at checkout. Payments run through Paysera. After confirmation, check your account and inbox for the eSIM installation details.

EU customers pay local VAT on the line item. Non-EU buyers don't. Your invoice itemizes everything.

iPhone XS and newer, in most regions. iPhone 14 and 15 sold in the US are eSIM-only.

Recent Samsung Galaxy (S20+), Pixel 3 and newer, recent OnePlus / Xiaomi / Motorola flagships.

On iOS, Settings → General → About → Carrier Lock should say "No SIM restrictions". If it says anything else, ask your home carrier to unlock — most do it for free after a contract ends.

Open My eSIMs and select the plan. If a top-up is supported, eligible data or validity options appear there; otherwise choose another plan. eSIM top up

Where offered, current top-up options combine data and validity. Check My eSIMs for the eligible options on the selected plan.