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Mobile communication in Slovakia: what Ukrainians need to know

Mobile communication in Slovakia: what Ukrainians need to know
Editor-in-Chief
358306/10/2025
In short

Ukrainians in Slovakia are advised to get a local mobile number for economic benefits, better connection quality, and requirements from official institutions. Four main operators work in Slovakia: Orange, Slovak Telekom, O2 Slovakia, and 4ka. They offer different plans, including 5G connection in big cities. You can buy a SIM card in the operators' official stores, supermarkets, or vending machines. For registration, you need a biometric passport and your address of residence.

After moving to another country, one of the first steps to adapt is to get a local mobile phone service. For Ukrainians living in Slovakia or planning to come, a mobile operator is not just about convenience, but often a necessity. Your phone connection is important for finding a job, talking to government offices, opening a bank account, or accessing online services. In this article, we will tell you everything you need to know about mobile services in Slovakia.

Why is it important to have a local mobile operator?

Having a local phone number in Slovakia makes life much easier. First, it is cheaper. Roaming with Ukrainian SIM cards, even with "intra-European" conditions, is still expensive for everyday use. Local plans offer much more internet, unlimited calls, and better connection quality. Second, most official organizations and companies in Slovakia require a local number. This applies to applying for residence permits, getting a medical card, or having goods delivered. Even services like ordering food or calling a taxi often require confirmation via SMS to a local number.

What is mobile service like in Slovakia: operators, coverage, internet

The mobile service market in Slovakia is well-developed. There are four main operators: Orange, Slovak Telekom (Magenta), O2 Slovakia, and 4ka (Štvorka). Each has its own advantages, from stable coverage to low prices for mobile internet. All operators have already introduced 5G service in big cities, so users with modern smartphones can expect super-fast internet.

Orange Slovensko

Advantages and features
  • One of the largest mobile operators in Slovakia with wide coverage.
  • Offers both prepaid SIM cards (like Prima Voľba) and contract plans (paušály).
  • There are plans with "unlimited" calls – full unlimited calls to all Slovak networks will cost about €35 per month.
  • There are loyalty programs, bonuses, and discounts on phones and extra services when you sign up.
  • You can combine mobile service with internet and TV.
Plans (estimated)
  • Basic packages cost from €20 to €50 per month, depending on the amount of calls, internet, and contract terms.
  • Prepaid SIM card Prima Voľba costs about €0.10 per minute or SMS.
  • There are also special packages with "unlimited" calls during certain hours (like in the evening) for about €12.
Prices are estimated – it is recommended to check the current offers on the website before signing up: orange.sk  

Telekom (Slovak Telekom)

Advantages and features
  • One of the most reliable operators in Slovakia with good coverage, even in remote areas.
  • Offers a full range of services: mobile, internet, TV – often in one package.
  • Discounts are available when you combine mobile and fixed services.
Plans (estimated)
  • Telekom contract plans start at about €20 per month.
  • The more internet, minutes, and extra services included, the higher the price, up to €50 or more.
  • There are special offers with discounts on smartphones when you sign a contract.
Prices are estimated – it is always best to check the current terms on the official website: telekom.sk  

O2 Slovakia

Advantages and features
  • Flexible prepaid plan O2 Voľnosť, without a contract. This means you top up your account in advance and only pay for the services you actually use. There is no contract, fixed monthly fee, or commitment – you decide when and what to pay for.
  • Special approach to calls – a fixed price per call, no matter how long it lasts.
  • You can activate internet for a day or for a specific period.
Plans (estimated)
  • Calls cost about €0.15 per call within the EU.
  • Internet for a day costs about €1.40 for unlimited data until the end of the day.
  • SMS cost approximately €0.08.
  • Additional internet packages:  • 1 GB per week – ~€2  • 1 GB for 4 weeks – ~€3  • 2 GB for 4 weeks – ~€5
Prices are approximate – always check on the operator's website: o2.sk  

4ka

Advantages and features
  • An independent operator with very simple and cheap plans.
  • No commitments or contracts.
  • They sell SIM cards even in post offices, so it's very easy to sign up.
  • There is a SLOBODA plan line where the user chooses the amount of services.
Plans (estimated)
  • Basic plans:  • SLOBODA 100 – about €6 / month  • SLOBODA 300 – about €10 / month  • SLOBODA ∞ (unlimited) – about €18 / month
  • Without packages:  • Calls – ~€0.05 / min  • SMS – ~€0.05  • Internet – ~€0.01 / MB
Prices may change – check the current packages on the website: 4ka.sk  

Comparison of mobile operators

Orange stands out with its wide coverage across the country and nice bonuses for users. The estimated cost of plans ranges from about €20 to €50 per month, depending on the amount of services. It is a good choice for those looking for reliable service and extra benefits. Telekom is known for its high quality of service, especially in remote areas. It is ideal for families or users who use multiple services – mobile, internet, TV. Plan prices start at about €20 per month. There are unlimited options, as well as good offers when combining services. O2 offers the most flexibility and simplicity without contracts. Calls cost about €0.15 per call, regardless of its length. Unlimited internet can be activated for one day for about €1.40. This is a great option for those who do not use mobile service constantly but want the ability to quickly activate internet or calls when needed. 4ka is an operator for those looking for the cheapest and simplest mobile service option. The main advantage is the low price and lack of contracts. However, it is worth noting that the operator's coverage may be worse in rural areas, although it partly uses the Orange network through national roaming.  

Where to buy a SIM card?

Buying a SIM card in Slovakia is not difficult. The most reliable option is to go to an official mobile operator's store. There, they will not only sell you a starter pack but also help you activate the number, register it, and set up the internet. Another convenient option is large supermarkets like Tesco or Lidl, which often sell prepaid packages (especially from 4ka). These may be ready to use, but you will still need to register the number. SIM card vending machines are installed in many shopping centers and airports. This is a quick option for those who have just arrived in the country.  

What documents are needed to buy a SIM card?

According to Slovak law, all SIM cards must be registered. This means the operator must know who the number is registered to. For Ukrainians with temporary protection or refugee status, the procedure is simplified. For registration, you need to have:
  • A biometric passport or a pobyt card (temporary or permanent residence permit)
  • A residential address in Slovakia — this can be a dormitory or rented accommodation.
Also, many operators allow you to get an eSIM — an electronic SIM card that is built into modern smartphones. This is convenient, especially if your phone does not support two physical cards. To activate an eSIM, you only need to visit a store.  

What is better: prepaid or contract?

Before choosing a plan, you should decide how long you plan to stay in Slovakia and how actively you will use the service. Prepaid is an option without obligations. You simply buy a starter pack, top up your account, and use it. This is an ideal solution for a short stay or if you have just arrived and do not have a permanent place of residence. Prepaid is also suitable for children or elderly relatives who do not need a lot of internet. A contract (postpaid) is a long-term solution. You sign an agreement with the operator (usually for 12 or 24 months), get better rates, more gigabytes, unlimited calls, and sometimes even additional services like Netflix or Spotify as a gift. In addition, many operators allow you to buy a smartphone in installments — but only if you have a stable status in the country.  

How to top up your account?

Topping up your account is a simple process and is available even without knowing the language.
  • The most convenient way is through the operator's mobile app by linking your bank card.
  • You can also use internet banking, payment terminals, or buy a top-up voucher at a supermarket or gas station.
    Connecting to local mobile service in Slovakia is not just about calls or internet. It's about adaptation, integration, and convenience in everyday life. For Ukrainians who are here with temporary protection or plan to stay for a long time, a local SIM card will significantly simplify solving many everyday and administrative issues. It doesn't matter if you have just arrived and are looking for a starter pack to contact relatives, or if you are already working and want a favorable plan with fast internet — the Slovak mobile market offers solutions for every situation. The choice between prepaid and contract, a classic SIM card or eSIM — all this depends on your needs and future plans.

Sources

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Frequently asked questions

Why is it important to have a local mobile number in Slovakia?+
A local number is more cost-effective than roaming, provides better connection quality, and is needed to communicate with official institutions and services.
What are the main mobile operators in Slovakia?+
Main operators: Orange, Slovak Telekom (Magenta), O2 Slovakia, and 4ka.
Where can I buy a SIM card in Slovakia?+
You can buy a SIM card at official operator stores, large supermarkets (Tesco, Lidl), or at kiosks in shopping centers and airports.
What documents are needed to buy and register a SIM card?+
You need a biometric passport or a residence permit card (temporary or permanent residence) and a Slovak address.
What plans do operators offer for Ukrainians in Slovakia?+
Plans vary: Orange and Telekom offer packages from 20 to 50 euros per month, O2 has flexible prepaid plans without a contract, and 4ka offers cheap plans with no commitment starting from around 6 euros per month.

Updated 29 July 2026

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