1 GB
Valid for 7 days
$4.99
$4.99 per GB
Slovakia is a small country with long drives. Bratislava sits on the Austrian border, the High Tatras are four hours northeast, Slovenský raj and Spiš Castle are further again, and Košice is at the far end. Trains and buses connect most of it, tickets live in apps, and the trailheads are where phone signal starts to matter.
A FairSIM eSIM connects to Orange or O2, both running 4G LTE and 5G. You install it over Wi-Fi at home, turn the line on when you land, and skip the shop queue. Bratislava airport is small and does not work like a big hub for SIM sales, and plenty of visitors arrive via Vienna instead, so having data before wheels-down saves real time.
One local rule to know before you rent a car: Slovak motorways need an electronic vignette, the diaľničná známka, registered to your number plate. There is no windscreen sticker and no toll booth on most of the network. You buy it online at eznamka.sk, at a petrol station or in the app, and you need data to do it from the road. Rental cars often include one, but check the paperwork rather than assume.
Wholesale rates in US dollars, with nothing added at checkout. Buy in the FairSIM app and the plan is on your phone in seconds.
How long is your trip?
All plans. Pick a trip length to narrow the list.
1 GB
Valid for 7 days
$4.99
$4.99 per GB
5 GB
Valid for 30 days
$9.99
$2.00 per GB
10 GB
Valid for 30 days
$18.99
$1.90 per GB
Unlimited
Valid for 15 days
$33.99
Speed policy shown in the app
Typical speed: City 5G handles video calls, uploads and laptop tethering comfortably. Rural 4G is steady rather than fast, which is fine for maps, tickets and messaging.
Bratislava, Trnava, Nitra, Žilina, Poprad, Banská Bystrica and Košice are well covered. Along the D1 motorway and the main rail lines you stay connected. Signal thins in the High and Low Tatras above the huts, in the gorges of Slovenský raj, and in forested valleys in the north and east, so download maps first.
It depends on how you travel. Find your trip below, then pick the plan that matches. You can always top up in the app.
Old town, the castle, Devín and a day trip to Vienna.
Why data matters: IDS BK tickets in the app, Bolt rides, restaurant bookings and maps. A Vienna day needs a Europe plan or a second plan for Austria.
Base in Starý Smokovec or Štrbské Pleso and walk the ridges and valleys.
Why data matters: Weather checks, cable car and funicular times, hut bookings, offline maps downloaded on 5G in town before you climb into patchy signal.
Winter week in the Low or High Tatras.
Why data matters: Lift status and snow reports, ski pass apps, photos and video uploads, and calls to a shuttle driver. Cold drains batteries fast.
Spiš Castle, Slovenský raj, Levoča and Košice by rental car.
Why data matters: The motorway e-vignette bought online, navigation on back roads, parking apps and fuel stops. Download the route before you leave the city.
Vienna, Bratislava, Budapest, Prague or Kraków on one loop.
Why data matters: Border crossings are invisible but networks change. One Europe plan keeps trains, buses and maps working the whole way instead of a new SIM per country.
Daily roaming passes look small until you multiply them by the length of the trip. FairSIM plans for Slovakia start at $4.99 and never bill per day.
If your phone is on an EU or EEA plan, Slovakia is covered by roam-like-at-home at domestic rates, within your plan's fair-use data cap. The expensive cases are US, some UK and Australian plans.
| Carrier | Roaming charge | FairSIM |
|---|---|---|
| AT&T International Day Pass (US) | $12 per day per line, $6 for each additional line | from $4.99, no daily fee |
| Verizon TravelPass (US) | $12 per day in Europe, high-speed allowance then slowed | from $4.99, no daily fee |
| EE (UK) | Europe roaming is included on some plans; others need a daily Europe pass of a few pounds or a monthly Roam Abroad add-on. Check your plan's start date. | from $4.99, no daily fee |
| Orange France (EU) | Included at domestic rates under EU roam-like-at-home, subject to a fair-use data limit | from $4.99, no daily fee |
| Telstra International Day Pass (Australia) | A$10 per day for 2 GB | from $4.99, no daily fee |
Carrier prices as published on their roaming pages at the time of writing. They change often; check your own plan before you fly.
Choose the country or region and the data you need. The price you see is the price you pay.
On iPhone (iOS 17.4+) the eSIM installs in one tap, no QR code. Do it at home while you still have Wi-Fi.
Turn on data roaming for the FairSIM line when you arrive. Your plan starts when it first connects.
Install the eSIM at home over Wi-Fi and switch the line plus data roaming on after landing. Validity normally starts at the first connection to a Slovak network.
Flying into Vienna and busing to Bratislava? Buy a Europe plan, because a Slovakia-only plan will not cover the Austrian side of the trip.
Driving? Register the motorway e-vignette for your plate at eznamka.sk or in the eZnámka app before you join the D1 or D2. There are no toll booths and checks are automated.
Download Mapy.cz offline maps for the Tatras and Slovenský raj while you still have 5G in town. Slovak trails are colour-marked and the offline maps show them properly.
Save 18 300 for mountain rescue and 112 for everything else. Signal in the gorges and on the ridges is unreliable, so tell someone your route.
Buy Bratislava transport tickets in the IDS BK app and validate them before boarding; a fine for an unvalidated ticket costs more than a week of data.
Keep your home SIM in the phone for bank verification codes, with its own data roaming switched off, and let FairSIM carry the data.
Continuing to Prague, Budapest, Vienna or Kraków? Add the next plan from the same app before you cross the border.
Mountain rescue in Slovakia is 18 300, and the High Tatras have a seasonal closure on high-mountain trails from 1 November to 15 June. Check TANAP notices before planning a ridge day, and carry the HZS app rather than relying on a screenshot.
Free Wi-Fi is easy to find in Bratislava and Košice cafes, hotels, shopping centres and some public squares, and it is generally fast enough for calls. Long-distance trains advertise Wi-Fi that works well on some sets and barely at all on others. In the mountains, expect nothing: huts, cable car stations and small villages may have a network for staff only, and captive portals often need an SMS code you cannot receive on a foreign line. Treat Wi-Fi as a bonus for big downloads, not the plan.
Orange and O2 both sell prepaid SIMs in their own shops, in shopping centres and at many newsagents and supermarkets, topped up with data bundles that last a week or a month. Prices are reasonable by European standards, and coverage is exactly what you would expect since it is their own network. The friction is the process: opening hours, Slovak-language menus and activation SMS, ID at the counter depending on the shop's policy, and the fact that Bratislava airport is a small terminal rather than a place with operator desks waiting for you. If you arrive via Vienna, a Slovak SIM is useless for the first hour of your trip anyway.
A FairSIM eSIM installs before you fly and roams onto Orange or O2, the same towers a local prepaid card would use. There is no shop visit, no paperwork and no dead time on arrival. For a single-country trip the plans are sized by days and data; for a Vienna or Budapest side trip a Europe plan is the simpler answer, since Slovakia sits within two hours of three other countries.
Yes. An unlocked eSIM phone connects to Orange or O2 with a travel eSIM. On iPhone that means XS, XR or newer; most recent Android flagships support eSIM too.
Orange or O2. Both run 4G LTE nationwide and 5G in cities and larger towns. The app shows the network for each plan.
Yes, in Bratislava, Košice and most regional towns, plus the main corridors. In mountain valleys and small villages you drop to 4G, which is fine for maps and messaging.
In the resort villages, at cable car bases and along the main roads, yes. On the high trails, in the gorges of Slovenský raj and deep in forested valleys, signal is patchy or absent. Download offline maps before you set off.
Yes. Every FairSIM plan supports tethering, with no separate hotspot cap.
A Slovakia plan works in Slovakia only. If your trip crosses into Vienna, Prague, Budapest or Kraków, choose a Europe plan instead, or add a second country plan in the app.
You need internet access, yes. The vignette is electronic and tied to your number plate, bought at eznamka.sk, in the eZnámka app or at a petrol station. Data makes it a two-minute job from the car park.
A city break on maps and messaging uses about 3 to 5 GB a week. A hiking or ski week with photo uploads and weather checks runs closer to 10 GB. Working from a laptop over hotspot, go unlimited.
An Orange or O2 prepaid card is cheap but needs a shop visit, and Bratislava airport is not set up for quick SIM buying. A FairSIM eSIM installs before departure, roams on the same networks, and works the moment you land, including if you arrive through Vienna.
A SIM card built into your phone. Instead of a plastic chip, you download a profile. Every iPhone since the XS has one next to the physical SIM slot, so your home number stays put while FairSIM supplies the data.
FairSIM works with eSIM-compatible, carrier-unlocked iPhones: the XS, XR and everything newer, on iOS 17.4 or later for the one-tap install with no QR code. iPhones bought in mainland China do not support eSIM at all, even when unlocked. Not sure yours is unlocked? Check Settings, General, About, Carrier Lock, or ask your carrier. The full list is on the How it works page.
Before you travel, while you still have Wi-Fi. Installing does not start your plan; the validity typically starts when the eSIM first connects to a network at your destination.
No. FairSIM eSIMs are data-only by design, which keeps costs low. For calls and texts, your physical SIM stays active so you keep your existing number, and WhatsApp, FaceTime and iMessage work over data.
Plans from $4.99. Install before you fly, track your data live, and top up in seconds if you need more.
iPhone XS or later · iOS 17.4+ for one-tap install
