Horizon Review 2026 - Is Horizon's eSIM reliable?
At a glance
Reviews & ratings
Perfect service and very easy to use, the Horizon eSIM installs quickly and the connection meets travel expectations.
Experience rated excellent, with smooth use of the eSIM and overall satisfaction with the service offered.
The eSIM worked perfectly during a trip to Europe, easy installation, fast and reliable connection in each country, no need for local SIM cards.
Pros & cons
👍 What we like
- ✓Prepaid plans that allow control over travel data budgets.
- ✓A single eSIM usable in multiple countries thanks to regional or global plans.
- ✓Connection to local 4G/5G networks for better performance than classic roaming.
- ✓Installation possible before departure, with automatic activation in the covered area.
- ✓Interface that makes it easy to track data balance and plan status.
- ✓Refund policy announced up to 7 days before eSIM installation.
👎 What we like less
- ✗Limited information online about data ranges and plan durations.
- ✗Calls and SMS not included, the solution being focused on data only.
- ✗Limited online information on support channels and response times.
- ✗No detailed public list of compatible devices, requiring case-by-case verification.
- ✗Payments mainly oriented towards cards and digital wallets, potentially limiting some users.
What is Horizon?
What is Horizon eSIM?
Horizon eSIM is a digital SIM solution offering prepaid data plans for more than 190 destinations worldwide. The eSIM is integrated into the compatible phone and allows adding a data line without replacing the physical SIM card, to stay connected upon arrival with local 4G/5G networks. The platform offers local plans for a single country, regional plans covering areas like Europe or the Balkans, as well as global plans for more complex itineraries. Each plan has its own data allowance and validity period, all managed from a single account. The process is fully digital: you buy a plan online, install the eSIM via Wi-Fi before departure, and the plan activates automatically as soon as the phone enters the coverage area. You can then recharge or add new plans without reinstalling the eSIM.
Plans overview
Destinations covered by Horizon
Coverage broken down by region. Tap a region to see its countries.
Our verdict
Horizon eSIM offers prepaid data plans for more than 190 destinations, with a single eSIM usable in multiple countries and local 4G/5G networks available upon arrival to avoid unexpected roaming charges.
Popular alternatives
Frequently asked questions
No, Horizon is not a scam: it is a reliable, well-known eSIM with a 4/5 rating in our test, coverage across 190 destinations and access to local 4G/5G networks (speed depends on local coverage). Just make sure your phone is eSIM-compatible before buying.
Horizon covers more than 190 destinations. Availability and network quality depend on the destination and the local partner operator: check that your travel country is covered before buying.
The main downsides we found in our test: Limited information online about data ranges and plan durations, Calls and SMS not included, the solution being focused on data only, Limited online information on support channels and response times, No detailed public list of compatible devices, requiring case-by-case verification and Payments mainly oriented towards cards and digital wallets, potentially limiting some users.
It depends on your destination and budget: Horizon scores 4/5 in our test, but the best value changes by country. Compare current deals in our comparator before choosing.
For an itinerary covering several European countries, it is recommended to opt for a regional Europe plan or a plan covering the Balkans to use a single eSIM and the same data plan throughout the trip.
Yes, Horizon eSIM adds a separate data line while keeping your physical SIM active for calls and SMS, subject to any fees from your original operator.
On most compatible smartphones, tethering works with an eSIM. However, it is advisable to check your device settings and monitor data consumption when using tethering.
Horizon states that many recent iPhone and Android models are compatible, provided they are unlocked. It is recommended to check your manufacturer’s compatibility list or Horizon documentation before purchase.
Horizon mentions a refund possibility up to 7 days as long as the eSIM has not been installed. Once the profile is installed, refund requests may no longer be accepted, so it is necessary to check conditions before ordering.
You can check your data balance and plan status in the Horizon interface, which also sends an alert when you approach 80 % of your data allowance to allow timely recharging.
Yes, by selecting a regional or global plan, you can travel through multiple countries with the same eSIM and the same data plan without reinstalling or changing the card.
Horizon offers are focused on mobile data; calls and SMS remain managed by your main line or communication apps using data.
What to do if Horizon doesn't work?
Check that your device is eSIM compatible, that the Wi-Fi connection is stable, and follow each step of the installation procedure. If the profile is accidentally deleted, contact support before attempting a new installation.
Make sure the eSIM is selected for mobile data, enable roaming if the plan requires it, then restart the phone and toggle airplane mode off and on to force reconnection.
Control usage through the Horizon interface, limit HD streaming, disable automatic updates while roaming, and monitor very data-hungry apps.
Do not attempt to reinstall the same profile immediately, as it may not be reusable. Contact Horizon support to evaluate recovery or replacement options.