Cheapest eSIM for Slovenia
The cheapest eSIM for Slovenia right now is Horizon eSIM, 1 GB for 7 Days at $0.28. That is $0.28 per GB.
1617 plans from 58 providers, watched and re-ranked by the real price per gigabyte. Every one is a prepaid travel eSIM for Slovenia that you buy online and install before you fly, so it works the moment you land.
Swipe the table for price and verdict →
| Rank | Provider | Data | Validity | Price (USD) | Price per GB | Verdict | Get |
|---|---|---|---|---|---|---|---|
| Paid placement. It sits above the ranking and does not change it. Advertise here | SponsoredPaid placement. It sits above the ranking and does not change it. Advertise hereMegaEsim Coupon: ESIMWATCHDOG |
10 GB | 30 Days | $5.99 | $0.60 | Sponsored | Get |
| 1 | Horizon eSIM | 1 GB | 7 Days | $0.28 | $0.28 | Best value | Get |
| 2 | Yatelo Coupon: ESIMWATCHDOG |
20 GB | 30 Days | $6.99 | $0.35 | Great | Get |
| 3 | Telekonek Coupon: ESIMWATCHDOG |
50 GB | 20 Days | $18.00 | $0.36 | Good | Get |
| 4 | Telekonek Coupon: ESIMWATCHDOG |
50 GB | 15 Days | $16.50 | $0.37 | Good | Get |
| 5 | AirPlans Coupon: ESIMWATCHDOG |
20 GB | 30 Days | $7.79 | $0.39 | Good | Get |
| 6 | SparkRoam Coupon: ESIMWATCHDOG5 |
50 GB | 30 Days | $19.94 | $0.40 | Good | Get |
| 7 | Tourist eSIM | 20 GB | 30 Days | $8.35 | $0.42 | Good | Get |
| 8 | Wanderly Coupon: ESIMWATCHDOGWILDCARD |
50 GB | 30 Days | $21.99 | $0.44 | Okay | Get |
| 9 | SparkRoam Coupon: ESIMWATCHDOG5 |
20 GB | 30 Days | $9.22 | $0.46 | Okay | Get |
| 10 | ASIMGO Coupon: ESIMWATCHDOG10 |
20 GB | 7 Days | $9.47 | $0.47 | Okay | Get |
| 11 | Wanderly Coupon: ESIMWATCHDOGWILDCARD |
30 GB | 15 Days | $13.99 | $0.47 | Okay | Get |
| 12 | ASIMGO Coupon: ESIMWATCHDOG10 |
50 GB | 20 Days | $23.43 | $0.47 | Okay | Get |
| 13 | Lempart Flex Coupon: ESIMWATCHDOG |
45 GB | 15 Days | $21.49 | $0.48 | Okay | Get |
| 14 | Horizon eSIM | 5 GB | 7 Days | $2.53 | $0.51 | Okay | Get |
| 15 | Yatelo Coupon: ESIMWATCHDOG |
10 GB | 30 Days | $5.28 | $0.53 | Okay | Get |
| 16 | Travel eSIM | 50 GB | 31 Days | $26.68 | $0.53 | Okay | Get |
| 17 | Textr | 20 GB | 30 Days | $11.15 | $0.56 | Fair | Get |
| 18 | AlpineSIM | 50 GB | 31 Days | $28.45 | $0.57 | Fair | Get |
| 19 | Textr | 10 GB | 30 Days | $5.82 | $0.58 | Fair | Get |
| 20 | AlpineSIM | 20 GB | 31 Days | $11.66 | $0.58 | Fair | Get |
| 21 | eSIMCard Coupon: eSbljricbt |
50 GB | 31 Days | $28.98 | $0.58 | Fair | Get |
| 22 | nadanada | 50 GB | 30 Days | $28.99 | $0.58 | Fair | Get |
| 23 | MegaEsim Coupon: SUMMER10 |
10 GB | 30 Days | $5.99 | $0.60 | Fair | Get |
| 24 | Connect Me Guru Coupon: hello-saun |
50 GB | 31 Days | $29.89 | $0.60 | Fair | Get |
| 25 | Tourist eSIM | 50 GB | 31 Days | $30.49 | $0.61 | Fair | Get |
| 26 | Travel eSIM | 20 GB | 31 Days | $12.38 | $0.62 | Fair | Get |
| 27 | Connect Me Guru Coupon: hello-saun |
20 GB | 31 Days | $12.49 | $0.62 | Fair | Get |
| 28 | eSIM4Travel | 20 GB | 30 Days | $12.64 | $0.63 | Fair | Get |
| 29 | CocoRoam | 50 GB | 30 Days | $31.30 | $0.63 | Fair | Get |
| 30 | CloudOn | 50 GB | 30 Days | $31.99 | $0.64 | Fair | Get |
| 31 | CloudOn | 20 GB | 30 Days | $12.99 | $0.65 | Fair | Get |
| 32 | MegaEsim Coupon: SUMMER10 |
20 GB | 7 Days | $12.99 | $0.65 | Fair | Get |
| 33 | eSIM Hero | 20 GB | 30 Days | $13.00 | $0.65 | Fair | Get |
| 34 | AirPlans Coupon: ESIMWATCHDOG |
30 GB | 30 Days | $19.65 | $0.65 | Fair | Get |
| 35 | eSIMCard Coupon: eSbljricbt |
20 GB | 15 Days | $13.17 | $0.66 | Fair | Get |
| 36 | ByteSIM | 30 GB | 10 Days | $19.90 | $0.66 | Fair | Get |
| 37 | eSIM4Travel | 10 GB | 30 Days | $6.72 | $0.67 | Fair | Get |
| 38 | Lempart Flex Coupon: ESIMWATCHDOG |
20 GB | 30 Days | $13.49 | $0.67 | Fair | Get |
| 39 | CocoRoam | 20 GB | 15 Days | $13.50 | $0.68 | Fair | Get |
| 40 | GigSky | 50 GB | 180 Days | $33.89 | $0.68 | Fair | Get |
| 41 | SimSmash | 50 GB | 180 Days | $34.49 | $0.69 | Fair | Get |
| 42 | eSIM Hero | 10 GB | 30 Days | $7.00 | $0.70 | Fair | Get |
| 43 | ByteSIM | 20 GB | 7 Days | $13.90 | $0.70 | Fair | Get |
| 44 | AdventureSIMs Charged in AUD Coupon: WATCHDOG |
20 GB | 30 Days | $13.91 | $0.70 | Fair | Get |
| 45 | nadanada | 20 GB | 30 Days | $13.99 | $0.70 | Fair | Get |
| 46 | GigaPanda | 50 GB | 30 Days | $34.90 | $0.70 | Fair | Get |
| 47 | Breeze | 50 GB | 30 Days | $34.99 | $0.70 | Fair | Get |
| 48 | Nomad | 50 GB | 30 Days | $35.00 | $0.70 | Fair | Get |
| 49 | HiRoaming Coupon: ESIMWATCHDOG20FIRST |
20 GB | 30 Days | $14.83 | $0.74 | Expensive | Get |
| 50 | MyTravel eSIM | 50 GB | 31 Days | $36.98 | $0.74 | Expensive | Get |
| 51 | SimSmash | 20 GB | 30 Days | $14.99 | $0.75 | Expensive | Get |
| 52 | HiRoaming Coupon: ESIMWATCHDOG20FIRST |
10 GB | 30 Days | $7.74 | $0.77 | Expensive | Get |
| 53 | RoameSIM Coupon: ESMWD10 |
20 GB | 30 Days | $15.31 | $0.77 | Expensive | Get |
| 54 | MobiMatter Coupon: ESIMWATCHDOG |
35 GB | 30 Days | $26.99 | $0.77 | Expensive | Get |
| 55 | eSIMfly | 20 GB | 30 Days | $15.53 | $0.78 | Expensive | Get |
| 56 | MobiMatter Coupon: ESIMWATCHDOG |
50 GB | 60 Days | $38.99 | $0.78 | Expensive | Get |
| 57 | FlyEsim Coupon: ESIMWATCHDOG |
50 GB | 30 Days | $39.34 | $0.79 | Expensive | Get |
| 58 | Lumbus Coupon: ESIMWATCHDOG10 |
20 GB | 30 Days | $15.99 | $0.80 | Expensive | Get |
| 59 | Skyalo Coupon: ESIMWATCHDOG |
50 GB | 31 Days | $39.99 | $0.80 | Expensive | Get |
| 60 | AdventureSIMs Charged in AUD Coupon: WATCHDOG |
50 GB | 180 Days | $40.35 | $0.81 | Expensive | Get |
699 of these 1617 plans were checked against the seller's own shop on 17 October 2026. The rest come from the seller's own feed or plan pages and are not yet independently checked.
The Watchdog Pick is chosen automatically: the lowest real price per GB of the 1617 plans in this view. Bulk data pools above 50 GB cannot win it, because their per GB rate only exists if you use data no traveller uses. Providers cannot pay for it, and a commission never changes the ranking. Prices are shown in USD and can change at checkout.
Price per GB counts only data you can use inside the validity, at most 3 GB a day, so a big pool on a short validity cannot buy the top spot. Every provider's best two plans come first, then the rest. A plan marked Unverified price undercuts every other provider here by more than half and waits at the end until we have checked it on the seller's site. How we rank
Unlimited rows show the daily amount at full speed. Some rows also show the speed after that amount. A row with no speed does not mean the plan stays fast, so check the plan on the seller's site.
Some links here earn us a commission. It never changes the order. How we make money The row marked Sponsored is a paid placement shown above the ranking, not part of it. Advertise here.
Crossing borders on this trip? Compare multi country Europe eSIM plans that keep one line working across several destinations.
Cheapest eSIM for Slovenia: the numbers
As of 17 October 2026, 06:01 GMT, the cheapest eSIM for Slovenia is Horizon eSIM with 1 GB for 7 Days at $0.28. That is $0.28 per GB, the best rate of the 1617 plans we compare from 58 providers. 1038 plans include 5G. 620 support top ups. That timestamp is the exact moment of our latest price check, and the table above always shows the live order.
Which is the best eSIM for Slovenia?
There is no single best eSIM for Slovenia, because the right plan depends on how long you stay and how much data you use. What we can do is rank the 1617 plans on the numbers, as they stand on 17 October 2026:
- Best value overall Horizon eSIM, 1 GB for 7 Days at $0.28. That is $0.28 per GB, the lowest real rate of every Slovenia plan we track.
- Best for a long stay Yatelo, 20 GB for 30 Days at $6.99, $0.35 per GB. The best rate among plans that last 30 days or more.
- Highest daily cap on an unlimited plan ByteSIM, 30 Days at $78.90, full speed up to 10 GB a day. Set that daily cap against the fixed plan above before you pay for the word unlimited.
None of these picks is chosen by a person. Each one is the first row of a sort on live prices, so it changes whenever a provider moves a price, and Horizon eSIM did not pay to be named here.
Which mobile networks does Slovenia have?
4G covers about 98% of the population on both Telekom Slovenije and A1, and by 2025 5G already accounted for 43.8% of Slovenian mobile lines.
- Telekom Slovenije: Telekom Slovenije leads the mobile market with 36.85% of active users in 2025 and wins Opensignal's 4G coverage award, with 5G open to prepaid customers since April 2024.
- A1 Slovenija: A1, part of Telekom Austria Group, is second with 25.45% of users and 4G coverage on par with Telekom at about 98% of the population.
- Telemach: Telemach, owned by United Group, holds 24.74% of users and leads the country on 5G, with 98.3% 5G availability and average 5G downloads around 300 Mbps in Opensignal testing.
- T-2: T-2 is the small fourth operator, now under the Telemach and United Group umbrella, and scored 92.5% on 5G availability in Opensignal testing.
Budget brand HoT sells cheap prepaid packs and is a popular low cost alternative, though most travel eSIMs connect through the three main networks.
The eSIM plans we compare on this page connect to:
The list above is Slovenia's operator market. The badges are the networks our tracked plans actually roam onto, which can be a subset of it, and the same network is sometimes sold to roaming partners under a different brand name. So a guide praising an operator you do not see badged here is describing a local SIM, not the travel eSIMs compared above.
Is 5G available in Slovenia?
All the main operators run 5G. Telemach leads on availability and speed, and coverage is strongest in Ljubljana, Maribor and the other larger towns.
How much data do you need in Slovenia?
Light use is about 500 MB a day. That covers maps, messages, and some browsing. Normal use with photos, social apps, and short videos runs 1 to 1.5 GB a day. Streaming and hotspot use can eat 2 to 3 GB a day. Here is what each size costs in Slovenia right now:
Are unlimited eSIMs for Slovenia really unlimited?
Not always. 715 of the 1617 plans above are sold as unlimited, and most of them carry a daily fair use cap. A further 38 plans are unlimited in a different way: one capped speed for the whole plan, shown next to the word Unlimited in the table. For Slovenia the caps we can see published are 0.3 to 10 GB a day: past that the speed drops, often to 1 Mbps or less, until the clock resets. That is fine for messages and maps, slow for video. At $0.28 per GB from Horizon eSIM, a fixed plan often works out cheaper than unlimited unless you genuinely burn several GB a day. That is why we rank by price per GB and not by the word on the label.
Here is what each seller on this page actually allows per day before it slows you down. No seller publishes this next to its rivals, which is exactly why it is worth showing.
Every seller that publishes a daily allowance is listed on our daily data caps page, with the cheapest plan at each one. The gap between the top and bottom of that table is the whole point. Two plans both sold as unlimited can differ several times over in what you actually get at full speed, and the cheaper one is not always the smaller allowance.
eSIM or a local SIM card at the airport in Slovenia?
An eSIM is ready before you land. No queue, no shop, no handing over your passport at a counter for a tourist SIM card. Data for Slovenia starts at $0.20 on this page, which is hard for airport kiosks to beat. A local SIM still makes sense if you need a local phone number or plan to stay for months. For a normal trip, the eSIM wins on price and effort.
Setting up your Slovenia eSIM
Pick the plan, not the brandThe cheapest rate in Slovenia today is $0.28 per GB from Horizon eSIM, against a median of $1.28. The QR code arrives by email within minutes of paying.
Install before you flyScan the QR code on wifi at home. Installation needs a connection, and the one thing you will not have when you land in Slovenia is a working connection.
Turn it on when you landEnable the eSIM and turn on data roaming for it, then give it a minute to attach to A1, Mobitel, T-2, Telemach. Expect 5G where the network reaches, 4G everywhere else.
Know what happens when it runs out620 of the 1617 plans here can be topped up, so running out is not the end of the trip. If you would rather over buy than top up, the cheapest plan with at least 5 GB is ASIMGO at $2.39.
Good to know before you land in Slovenia
Both Telekom Slovenije and A1 have switched off 3G, so bring a 4G capable phone. Slovenian prepaid SIMs mostly block or restrict EU roaming unless you register a Slovenian address and tax number, so do not buy one as a regional travel SIM.
There is no big tourist SIM counter scene documented at Ljubljana airport. Prepaid SIMs are easy to find at operator stores, post offices and petrol stations, for example Telekom's Mobi SIM at 8.50 euros with 5 euros of credit.
EU and EEA visitors can simply roam at domestic rates, which is the easiest option for a short stay. If you buy local, Telemach is the pick for 5G speed and Telekom for rural 4G coverage.
Slovenia Travel eSIM FAQ
Everything you need to know about using an eSIM in Slovenia
What is the cheapest eSIM for Slovenia?
Right now the cheapest option ranked by price per GB is Horizon eSIM with 1 GB for 7 Days at $0.28. That works out to $0.28 per GB. Prices change often, so the table above is re-sorted at every price check.
Which is the best eSIM for Slovenia?
It depends on the trip, so we rank rather than pick a favourite. On today's prices the best value for Slovenia is Horizon eSIM at $0.28 per GB, the lowest real rate of the 1617 plans we compare. For heavy daily use there are 715 unlimited plans, most with a daily fair use cap, and they only win if you genuinely burn several GB a day. Every pick on this page is the first row of a sort on live prices. No provider can pay to be named best.
Is eSIM available in Slovenia?
Yes. We track 1617 prepaid travel eSIM plans from 58 providers that work in Slovenia, roaming onto A1, Mobitel, T-2, Telemach. You need a phone that supports eSIM and is not locked to a carrier; most iPhones from the XS onward and most flagship Android phones from 2019 on qualify.
Which networks will my eSIM connect to in Slovenia?
The plans we compare connect to A1, Mobitel, T-2, Telemach. The exact network depends on the plan you pick. Check the plan details before you buy if one network matters to you.
Do Slovenia eSIMs support 5G?
1038 of the 1617 plans we track for Slovenia include 5G where the local network offers it. The rest run on 4G, which is still fine for maps, calls over apps, and video.
Can I buy a Slovenia eSIM online before I travel?
Yes, and you should. Every plan on this page is sold online and delivered by email as a QR code within minutes. Install it on wifi at home, leave the line switched off, and turn on data roaming for it when you land in Slovenia. The validity clock on most plans only starts when the eSIM first connects.
Can I top up my Slovenia eSIM if I run out?
Yes. 620 of the 1617 plans here support top ups, so you can add data without buying a new eSIM. The rest need a fresh plan once the data ends.
Is an eSIM cheaper than a local SIM card in Slovenia?
For a trip of days or weeks, usually yes. Data for Slovenia starts at $0.20 for 100 MB on this page, with no queue, no shop and no passport handed over at a counter. A local SIM card can still win if you stay for months or need a local phone number.
Will I still receive bank SMS and OTP codes?
Yes, if you keep your home SIM active. Travel eSIMs are data only. Your phone can hold both at once, so leave your normal SIM on for SMS and use the eSIM for data. Turn off roaming data on the home SIM to avoid charges.
Do these eSIMs include a phone number or calls?
The plans we compare are data only, so there is no local number. Calls work fine over WhatsApp, FaceTime, or any app that uses data. If you need a real local number, a local SIM is the better tool.
Does a Slovenia eSIM work on iPhone and Android?
Yes, on any carrier unlocked phone with eSIM support: iPhone XS or newer, Google Pixel 3 or newer, Samsung Galaxy S20 or newer and most recent flagships. The plans are identical on both; only the install steps differ, and both take about a minute on wifi.
How many GB do I need for a week in Slovenia?
Around 3 to 5 GB covers a week of maps, messaging, and normal browsing. Heavy video or hotspot use needs 1 to 2 GB per day. Today the cheapest plan with at least 5 GB is ASIMGO at $2.39.
Which Slovenia eSIM gives the most data per day?
Of the plans sold as unlimited here, ByteSIM allows the most at full speed, 10 GB a day from $4.90. The smallest allowance on this page is 300 MB a day, from 4 sellers. Every one of them is advertised as unlimited, and past the daily allowance the speed drops, often to 1 Mbps or less, until the next day. Check the allowance, not the word.
Travelling further? Compare nearby destinations
CroatiaFrom$0.28/GB
RomaniaFrom$0.28/GB
GreeceFrom$0.35/GB
BulgariaFrom$0.28/GB
IrelandFrom$0.35/GB
HungaryFrom$0.28/GB
Or see every country on the cheapest eSIM index and track weekly movement on the eSIM Price Index.
How we rank
Prices last checked on 17 October 2026, 06:01 GMT across 1617 plans. Every plan is ranked by the true cost per gigabyte, not marketing claims. We do not take money for rankings, and providers cannot pay for a higher position. Read the full method on our how we rank page.
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