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O2 (Slovakia) uses 2 GSM bands, 1 UMTS band, and 2 LTE bands. Find out if your unlocked phone or mobile device will work with O2 (Slovakia). See the tables below for details.

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Carrier website: https://www.o2.sk/

O2 Slovakia is one of the major mobile operators in Slovakia, known for its rapid growth and innovative approach to the telecom industry. Here are some key points about O2 Slovakia's mobile network:

  1. Network Sharing Deal:

    • O2 Slovakia and Slovak Telekom have finalized a network sharing deal to enhance their 5G network rollouts and improve service quality. This arrangement will help reduce costs and accelerate the deployment of new technologies, particularly in areas outside Bratislava and Košice, where both operators will maintain their individual networks.
  2. Performance Metrics:

    • According to Opensignal's March 2024 report, Slovak Telekom leads in several performance metrics, including Download Speed Experience and Upload Speed Experience. O2 Slovakia, while not leading in these categories, still performs well in various aspects, such as 5G Video Experience, which it shares with 4ka.
  3. Coverage:

    • The nPerf coverage map shows the extensive coverage of O2 Slovakia's 2G, 3G, 4G, and 5G networks across various regions in Slovakia, including major cities like Bratislava and Košice.
  4. Customer Portal:

    • O2 Slovakia has developed a self-care customer portal called "My O2," which enhances customer satisfaction and retention by providing a modern and user-friendly experience, reducing the need for physical visits or personal calls.
  5. Market Position:

    • As of 2023, O2 Slovakia is the third-largest and fastest-growing mobile operator in the Slovak telecom market, with 2.3 million mobile customers and a strong presence in the market.

O2 Slovakia continues to innovate and expand its services, focusing on improving customer experience and staying competitive in the Slovak telecom market.


Frequency Bands

GSM

Name Interface Description
900 MHz (E-GSM) GSM

O2 Slovakia uses the GSM 900 MHz (E-GSM) frequency band. The deployment of this frequency band in Slovakia is not specified in the provided information.

1800 MHz (DCS) GSM

O2 Slovakia uses the GSM 1800 MHz (DCS) frequency band. This band operates within the 1.8 GHz frequency range, offering reduced signal interference and greater channel availability compared to the more crowded 900 MHz and 1800 MHz bands. The frequency ranges for GSM 1800 are:

  • Uplink: 1710–1785 MHz
  • Downlink: 1805–1880 MHz

GSM 1800 was introduced in 1991 as an extension of the GSM standard and is primarily used in Europe.


UMTS

Name Interface Description
B1 (2100 MHz) UMTS

O2 Slovakia uses the UMTS B1 (2100 MHz) frequency band. This band is used for UMTS services. The deployment details are not specified.


LTE

Name Interface Description
B3 (1800 MHz +) LTE

O2 Slovakia uses LTE Band 3 (1800 MHz +) for its LTE services. This frequency band is utilized by O2 Slovakia to provide mobile broadband services.

B20 (800 MHz DD) LTE

O2 Slovakia uses LTE B20 (800 MHz DD) for its LTE network deployments. This frequency band is particularly known for its wide area coverage and deep penetration, making it suitable for regional and rural environments, as well as in-building coverage. It is also popular for IoT applications like eMTC (LTE Cat M1) and NB-IoT (LTE Cat NB1) due to its wide coverage characteristics. The 800 MHz band does not easily support Massive MIMO and beamforming technologies due to its large wavelength. It can be used as a single band or as part of a multi-band network, and it supports carrier aggregation with other bands to enhance bandwidth and performance.


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