Czech Republic
Opensignal is the independent global standard for analyzing consumer mobile experience. Our industry reports are the definitive guide to understanding the true experience consumers receive on wireless networks.
Czech Republic
Opensignal is the independent global standard for analyzing consumer mobile experience. Our industry reports are the definitive guide to understanding the true experience consumers receive on wireless networks.
Key Findings
O2 takes home the 5G Download Speed award
Our users in the Czech Republic experienced the fastest average 5G download speed on O2’s network. The operator wins 5G Download Speed with a score of 132.3 Mbps — 31.5 Mbps (31.2%) faster than second-placed T-Mobile, making this award its only outright win this time around. O2 average 5G download speeds were 4.1 times faster than its Download Speed Experience score — meanwhile, T-Mobile and Vodafone saw uplifts of 2.7 and 2.2 times, respectively.
Our users enjoyed the fastest average 5G upload speeds on T-Mobile’s network
While O2 secured the 5G Download Speed award, T-Mobile wins the other 5G speed award — 5G Upload Speed, with a score of 42.6 Mbps — 10.5-13.8 Mbps ahead of statistically tied O2 and Vodafone. T-Mobile claims this award with average 5G upload speeds 3.2 times faster than its average overall upload speeds.
Vodafone triumphs in 5G Availability award
Our 5G users spent 14.7% of the time with an active 5G connection on Vodafone’s network. This was the highest result in the Czech Republic, bringing Vodafone its only outright victory this time around. O2 and T-Mobile were in a statistical tie for second place, with scores in the 8.5-10.2% range.
T-Mobile wins both Consistency awards outright
T-Mobile wins both Consistency awards outright, scoring 83.6% for Excellent Consistent Quality and 92.8% for Core Consistent Quality. Excellent Consistent Quality measures how operators’ networks meet the minimum recommended performance thresholds to watch HD video, complete group video conference calls and play games. Meanwhile, Core Consistent Quality uses thresholds for lower performance applications including SD video, voice calls and web browsing.
O2 and T-Mobile rated Excellent for 5G Video Experience and 5G Games Experience
O2 and T-Mobile jointly win the 5G Games Experience award with statistically tied scores in the 85.2-86.2 point range. Both operators placed in the Excellent (85 and above). This means nearly all users felt like they had control over the game and received immediate feedback on their actions and there was not a noticeable delay in almost all cases. Our users also enjoyed Excellent (75 and above) video streaming on these operators’ 5G networks. O2 and T-Mobile also share the 5G Video Experience award with scores in the 77.9-78.2 point range.
Vodafone jointly wins both overall speed awards with different competitors
T-Mobile and Vodafone share the Download Speed Experience award, with scores around 36.5 Mbps, ahead of O2’s score of 32.4 Mbps. However, O2 shares the winners’ podium for the other overall speed award — Upload Speed Experience — with Vodafone, with identical scores of 14.1 Mbps.
Mobile Experience Awards
Market Overview
In Opensignal's latest Czech Republic Mobile Network Experience report we analyze both the 5G experience and the overall experience together for the first time in one report. Also, we add two awards that quantify the consistency of the experience on the country’s three national operators.
We observed a strong competition between all three Czech national operators, with multiple two-way and three-way joint wins in the awards table. T-Mobile wins 5G Upload Speed and both Consistency awards outright, while O2 and Vodafone both win one award outright — 5G Download Speed and 5G Availability, respectively. T-Mobile’s haul of 11 awards in total was the largest out of the Czech mobile operators, while O2 and Vodafone each collected eight awards.
Following the setback from the European Commission, The Czech Telecommunication Office (CTU) will not issue proposed temporary regulations to impose measures on the country’s wholesale mobile market, that would have required O2, T-Mobile and Vodafone to provide national roaming to all of the country’s MVNOs, at maximum wholesale prices. According to the CTU, wholesale access conditions are disadvantageous for the local MVNOs and prevent them from offering competitive services.
Meanwhile, antitrust regulators in the EU agreed to concessions offered by O2 and T-Mobile along with an infrastructure provider CETIN regarding their 2011 network infrastructure sharing agreement, which the European Commission claimed was resulting in reduced competition. To meet the EU and their competitors’ feedback, the operators amended the sharing agreement and offered to modernize the mobile network. These new concessions will remain in force until 2033.
In this report, we have analyzed the mobile network experience for the Czech Republic’s three operators — O2, T-Mobile and Vodafone — over the 90 days starting May 1, 2022 and ending July 29, 2022, to see how they fared.
Overall Experience
National Analysis
Our users saw a three-way statistical tie between O2, T-Mobile and Vodafone for Video Experience and, as a result, all three Czech mobile operators jointly win this award. With scores in the 57.6-59.4 point range, they all placed in the Good (55-65) category. This means an acceptable but inconsistent experience, even from the same video streaming provider and particularly for higher resolutions, with noticeable slow loading times and stalling not uncommon.
O2, T-Mobile and Vodafone all rated Good in Video Experience — 5G Users as well, with statistically tied scores in the 59.5–64.6 point range. This metric reflects the overall video experience of our 5G users, when they connected to 3G, 4G or 5G services on their 5G devices.
Definitions
Opensignal’s Video Experience quantifies the quality of video streamed to mobile devices by measuring real-world video streams over an operator's networks. The metric is based on an International Telecommunication Union (ITU) approach, built upon detailed studies which have derived a relationship between technical parameters, including picture quality, video loading time and stall rate, with the perceived video experience as reported by real people. To calculate video experience, we are directly measuring video streams from end-user devices and using this ITU approach to quantify the overall video experience for each operator on a scale from 0 to 100. The videos tested include a mixture of resolutions — including Full HD (FHD) and 4K / Ultra HD (UHD) — and are streamed directly from the world’s largest video content providers.
In addition to Video Experience, we report on the following metrics related to video experience:
- 5G Video Experience: The average Video Experience of Opensignal users when they were connected to an operator’s 5G network.
- Video Experience – 5G Users: The average Video Experience of Opensignal users with a 5G device and a 5G subscription across an operator's networks. It factors in 2G, 3G, 4G and 5G video experience along with the availability of each technology.
- 4G Video Experience: The average Video Experience of Opensignal users on an operator's 4G network.
- 3G Video Experience: The average Video Experience of Opensignal users on an operator’s 3G network.
National Analysis
Our users in the Czech Republic saw no statistically significant difference between the operators’ networks when playing multiplayer mobile games on their devices. O2, T-Mobile and Vodafone all share the winners’ podium for Games Experience, with statistically tied scores in the 75.7-77.2 point range. Our users enjoyed Good (75-85) gaming experience on all Czech mobile operators. Most users deemed the experience acceptable and did not experience a delay between their actions and the game.
Looking at Games Experience — 5G Users — our 5G users also saw a Good experience when connecting to mobile networks, with no statistically significant difference between the operators.
Definitions
Opensignal’s Games Experience measures how mobile users experience real-time multiplayer mobile gaming on an operator’s network. Measured on a scale of 0-100, it analyzes how our users’ multiplayer mobile gaming experience is affected by mobile network conditions including latency, packet loss and jitter.
Games Experience quantifies the experience when playing real-time multiplayer mobile games on mobile devices connected to servers located around the world. The approach is built on several years of research quantifying the relationship between technical network parameters and the gaming experience as reported by real mobile users. These parameters include latency (round trip time), jitter (variability of latency) and packet loss (the proportion of data packets that never reach their destination). Additionally, it considers multiple genres of multiplayer mobile games to measure the average sensitivity to network conditions. The games tested include some of the most popular real-time multiplayer mobile games (such as Fortnite, Pro Evolution Soccer and Arena of Valor) played around the world.
Calculating Games Experience starts with measuring the end-to-end experience from users’ devices to internet end-points that host real games. The score is then measured on a scale from 0 to 100.
In addition to Games Experience, we report on the following metrics related to games experience:
- 5G Games Experience: The average Games Experience of Opensignal users when they were connected to an operator’s 5G network.
- Games Experience – 5G Users: The average Games Experience of Opensignal users with a 5G device and a 5G subscription across an operator's networks. It factors in 2G, 3G, 4G and 5G games experience along with the availability of each technology.
- 4G Games Experience: The average Games Experience of Opensignal users on an operator's 4G network.
- 3G Games Experience: The average Games Experience of Opensignal users on an operator's 3G (e.g. UMTS/HSPA or CDMA 1X EV-DO) network.
National Analysis
T-Mobile and Vodafone jointly win the Voice App Experience award, with statistically tied scores in the 80.5-81.3 point range. O2 followed close behind, with a score of 79.8 points.
Our 5G users saw no statistical difference in their overall Voice App Experience between all three Czech operators and enjoyed a Good (80-87) Voice App Experience – 5G Users on their networks. This means many 5G users were satisfied but some experienced minor quality impairments.
Definitions
Opensignal's Voice App Experience measures the quality of experience for over-the-top (OTT) voice services — mobile voice apps such as WhatsApp, Skype and Facebook Messenger — using a model derived from the International Telecommunication Union (ITU) approach for quantifying overall voice call quality and a series of calibrated technical parameters. This model characterizes the exact relationship between the technical measurements and perceived call quality. Voice App Experience for each operator is calculated on a scale from 0 to 100.
In addition to Voice App Experience, we report on the following metrics related to voice app experience:
- 5G Voice App Experience: The average Voice App Experience of Opensignal users when they were connected to an operator’s 5G network.
- Voice App Experience – 5G Users: The average Voice App Experience of Opensignal users with a 5G device and a 5G subscription across an operator's networks. It factors in 2G, 3G, 4G and 5G voice app experience along with the availability of each technology.
- 4G Voice App Experience: The average Voice App Experience of Opensignal users on an operator's 4G network.
- 3G Voice App Experience: The average Voice App Experience of Opensignal users on an operator's 3G (e.g. UMTS/HSPA or CDMA 1X EV-DO) network.
National Analysis
T-Mobile and Vodafone share the podium for the Download Speed Experience award with statistically tied scores in the 36.1-36.8 Mbps range. O2 takes third place with a score of 32.4 Mbps — 3.7-4.4 Mbps behind the joint winners.
Turning to Download Speed Experience — 5G Users, T-Mobile saw the highest score, clocking in at 59.5 Mbps. T-Mobile commanded a lead of 11.1 Mbps over O2 and of 20.3 Mbps over Vodafone. Our 5G Users on T-Mobile saw the highest increase in their average download speeds, compared to overall Download Speed Experience results, of 22.7 Mbps — followed by O2 and its increase of 16 Mbps. Meanwhile, Vodafone saw no statistically significant difference between its Download Speed Experience and Download Speed Experience — 5G Users scores.
Definitions
Measured in Mbps, Download Speed Experience represents the typical everyday speeds a user experiences across an operator’s mobile data networks.
In addition to Download Speed Experience, we report on the following metrics related to download speeds:
- 5G Download Speed: The average download speed observed by Opensignal users with active 5G connections.
- Download Speed Experience – 5G Users: The average download speeds experienced by Opensignal users with a 5G device and a 5G subscription across an operator’s networks. It factors in 2G, 3G, 4G, and 5G download speeds along with the availability of each technology.
- 4G Download Speed: The average downlink speed observed by Opensignal users when they were connected to 4G.
- 3G Download Speed: The average downlink speed observed by Opensignal users when they were connected to 3G (e.g. UMTS/HSPA or CDMA 1X EV-DO).
National Analysis
O2 and Vodafone jointly win Upload Speed Experience with identical scores of 14.1 Mbps — 0.9 Mbps ahead of third-placed T-Mobile
Despite not winning the Upload Speed Experience award, T-Mobile comes first for Upload Speed Experience — 5G Users, which quantifies the overall upload experience of Opensignal 5G users. T-Mobile’s score of 17.9 Mbps was 4.6 Mbps (35%) faster than its Upload Speed Experience. Our O2 and Vodafone 5G users did not see statistically significant differences compared to the operator’s Upload Speed Experience scores and the two operators were in a statistical tie in this metric as well.
Definitions
Upload Speed Experience measures the average upload speeds for each operator observed by our users across their mobile data networks. Typically upload speeds are slower than download speeds, as current mobile broadband technologies focus resources on providing the best possible download speed for users consuming content on their devices. As mobile internet trends move away from downloading content to creating content and supporting real-time communications services, upload speeds are becoming more vital and new technologies are emerging that boost upstream capacity.
In addition to Upload Speed Experience, we report on five supporting metrics related to upload speeds:
- 5G Upload Speed: The average upload speed observed by Opensignal users with active 5G connections.
- Upload Speed Experience – 5G Users: The average upload speeds experienced by Opensignal users with a 5G device and a 5G subscription across an operator’s networks. It factors in 2G, 3G, 4G, and 5G upload speeds along with the availability of each technology.
- 4G Upload Speed: The average uplink speed observed by Opensignal users when they were connected to 4G.
- 3G Upload Speed: The average uplink speed observed by Opensignal users when they were connected to 3G (e.g. UMTS/HSPA or CDMA 1X EV-DO).
5G Experience
National Analysis
O2 and T-Mobile share the winners’ podium for 5G Video Experience, with statistically tied scores in the 77.9-78.2 point range. Vodafone comes third, around 6.2 points behind the winners. Compared to their Video Experience scores, Czech operators observed sizable increases in 5G Video Experience — 20.6 and 18.5 points for O2 and T-Mobile, followed by a 13.6 point increase for Vodafone.
Our users enjoyed Excellent (75 and above) video streaming on the winners’ networks, meaning fast loading times and almost non-existent stalling. Meanwhile, Vodafone placed in a category below, Very Good (65-75) — which means generally fast loading times and only occasional stalling but the experience might have been somewhat inconsistent across users and/or video providers/resolutions. In Video Experience, all Czech operators rated as Good (55-65).
Definitions
5G Video Experience quantifies the quality of mobile video experienced by Opensignal users on real-world video streams when they were connected to 5G. The metric is based on an International Telecommunication Union (ITU) approach, built upon detailed studies which have derived a relationship between technical parameters, including picture quality, video loading time and stall rate, with the perceived video experience as reported by real people. To calculate 5G Video Experience, we are directly measuring video streams from end-user devices and using this ITU approach to quantify the video experience observed by our users on each operator’s 5G network on a scale from 0 to 100. The videos tested include a mixture of resolutions — including Full HD (FHD) and 4K / Ultra HD (UHD) — and are streamed directly from the world’s largest video content providers.
National Analysis
O2 and T-Mobile jointly win the 5G Games Experience award with statistically tied scores in the 85.2-86.2 range — ahead of Vodafone’s score of 80.4 points on a 100-point scale. O2 observed the biggest boost in its score compared to Games Experience, of 9.6 points — followed closely by T-Mobile and its increase of nine points. Vodafone saw a more modest increase of four points.
Both winners placed in the Excellent (85 and above). This means nearly all users felt like they had control over the game, received immediate feedback on their actions and there was not a noticeable delay in almost all cases. Vodafone rated as Good (75-85), as most users deemed the experience acceptable and did not experience a delay between their actions and the game.
Definitions
5G Games Experience measures how mobile users experience real-time multiplayer mobile gaming on an operator's 5G network. It analyzes how our users’ multiplayer mobile gaming experience was affected by mobile network conditions including latency, packet loss and jitter. 5G Games Experience for each operator is calculated on a scale from 0 to 100.
5G Games Experience quantifies the experience when playing real-time multiplayer mobile games on mobile devices connected to servers located around the world. The approach is built on several years of research quantifying the relationship between technical network parameters and the gaming experience as reported by real mobile users. These parameters include latency (round trip time), jitter (variability of latency) and packet loss (the proportion of data packets that never reach their destination). Additionally, it considers multiple genres of multiplayer mobile games to measure the average sensitivity to network conditions. The games tested include some of the most popular real-time multiplayer mobile games (such as Fortnite, Pro Evolution Soccer and Arena of Valor) played around the world. Calculating 5G Games Experience starts with measuring the end-to-end experience from users’ devices to internet end-points that host real games.
National Analysis
All Czech operators share the winners’ podium for 5G Voice App Experience after a three-way statistical tie in the 83.1-83.9 point range. They all placed in the Good (80-87) category — many users were satisfied but some experienced minor quality impairments.
Definitions
5G Voice App Experience quantifies the experience of Opensignal users when using over-the-top voice apps — such as WhatsApp, Skype and Facebook Messenger — on an operator’s 5G network. It uses a model derived from the International Telecommunication Union (ITU) approach for quantifying overall voice call quality and a series of calibrated technical parameters. This model characterizes the exact relationship between the technical measurements and perceived call quality. 5G Voice App Experience for each operator is calculated on a scale from 0 to 100.
National Analysis
O2 is the sole winner of the 5G Download Speed award with a score of 132.3 Mbps — making it its only outright victory in the awards table this time around. T-Mobile comes second, with a score of 100.8 Mbps, 31.5 Mbps behind the winner. Vodafone brings up the rear with a score of 77.8 Mbps — 41.2% slower than the winner, O2.
Our O2 users’ average 5G download speeds were 4.1 times faster than their Download Speed Experience — meanwhile, T-Mobile and Vodafone saw uplifts of 2.7 and 2.2 times, respectively.
Definitions
5G Download Speed shows the average download speed experienced by Opensignal users across an operator’s 5G network. 5G Download Speed for each operator is calculated in Mbps (Megabits per second).
National Analysis
T-Mobile comes top for 5G Upload Speed, with a score of 42.6 Mbps. O2 and Vodafone were in a statistical tie for second place with scores in the 28.7-32 Mbps range — 10.5-13.8 Mbps behind the winner.
T-Mobile wins with an average 5G upload speed 3.2 times faster than its Upload Speed Experience score. Vodafone experienced an uplift of 2.3 times, while O2’s average 5G upload speed was twice as fast as its overall average upload speed.
Definitions
5G Upload Speed measures the average upload speeds experienced by Opensignal users across an operator’s 5G network. 5G Upload Speed for each operator is calculated in Mbps (Megabits per second).
Coverage
O2
T-Mobile
Vodafone
National Analysis
Our users in the Czech Republic observed no statistically significant difference between the times they remained connected to 3G or better services on the country’s three national operators. As a result, O2, T-Mobile and Vodafone jointly win the Availability award, with scores in the 91-92.7% range — meaning, our users in the Czech Republic connected to 3G or better services for more than 90% of the time.
Definitions
Our availability metrics are not a measure of a network’s geographical extent. They won’t tell you whether you are likely to get a signal if you plan to visit a remote rural or nearly uninhabited region. Instead, they measure what proportion of time people have a network connection, in the places they most commonly frequent — something often missed by traditional coverage metrics. Looking at when users have a connection rather than where, provides us with a more precise reflection of the true user experience.
We also keep track of the instances that leave mobile users most frustrated: when there is no signal to connect to at all. The most common dead zones users struggle with occur indoors. As most of our availability data is collected indoors (as that’s where users spend most of their time), we’re particularly astute at detecting areas of zero signal.
Our availability metrics take a user-centric, time-based approach that complements the user-centric and geographical-based methodology used by our reach metrics.
Availability shows the proportion of time all Opensignal users on an operator’s network had either a 3G, 4G or 5G connection.
The coverage maps show the locations where we received measurements from users connecting with 3G or better mobile service. Each map provides an indication of the areas in which it is possible to obtain mobile service from that mobile operator.
National Analysis
Vodafone comes first in 5G Availability — its sole outright win in the awards table. Our 5G users spent 14.7% of the time connected to 5G services on its network. O2 and T-Mobile were in a statistical tie for second place, with scores in the 8.5-10.2% range — 5.4 percentage points behind Vodafone, on average.
Definitions
Our availability metrics are not a measure of a network’s geographical extent. They won’t tell you whether you are likely to get a signal if you plan to visit a remote rural or nearly uninhabited region. Instead, they measure what proportion of time people have a network connection, in the places they most commonly frequent — something often missed by traditional coverage metrics. Looking at when users have a connection rather than where, provides us with a more precise reflection of the true user experience.
We also keep track of the instances that leave mobile users most frustrated: when there is no signal to connect to at all. The most common dead zones users struggle with occur indoors. As most of our availability data is collected indoors (as that’s where users spend most of their time), we’re particularly astute at detecting areas of zero signal.
Our availability metrics take a user-centric, time-based approach that complements the user-centric and geographical-based methodology used by our reach metrics.
5G Availability shows the proportion of time Opensignal users with a 5G device and a 5G subscription had an active 5G connection.
The coverage maps show the locations where we received measurements from users connecting with 3G or better mobile service. Each map provides an indication of the areas in which it is possible to obtain mobile service from that mobile operator.
Consistency
National Analysis
T-Mobile wins Excellent Consistent Quality outright. This means it was the network that met the minimum recommended performance thresholds for HD video, group video conference calls and gaming in 83.6% of users’ tests — which was the highest result in the Czech Republic. T-Mobile wins this award 1.6 percentage points ahead of second-placed O2 — and both operators exceed the 80% mark in this category. With a score of 79.2%, Vodafone was only 0.8 percentage points shy of the 80% milestone.
Definitions
Consistent Quality measures how often users’ experience on a network was sufficient to support common applications’ requirements. It measures download speed, upload speed, latency, jitter, packet loss, time to first byte and the percentage of tests attempted which did not succeed due to a connectivity issue on either the download or server response component.
Full details on how the Consistent Quality metrics — Excellent Consistent Quality and Core Consistent Quality — are calculated can be found here.
Excellent Consistent Quality is the percentage of users’ tests that met the minimum recommended performance thresholds to watch HD video, complete group video conference calls and play games.
National Analysis
T-Mobile is the sole winner of the Core Consistent Quality award, claiming it with a score of 92.8%. This is the percentage of users’ tests that met the minimum recommended performance thresholds for lower performance applications including SD video, voice calls and web browsing. All Czech operators hit the 90% mark. T-Mobile commands a lead over the runner-up Vodafone of only 0.5 percentage points, while O2 comes third, with a score of 91.5% — only 1.2 percentage points behind the winner.
Definitions
Consistent Quality measures how often users’ experience on a network was sufficient to support common applications’ requirements. It measures download speed, upload speed, latency, jitter, packet loss, time to first byte and the percentage of tests attempted which did not succeed due to a connectivity issue on either the download or server response component.
Full details on how the Consistent Quality metrics — Excellent Consistent Quality and Core Consistent Quality — are calculated can be found here.
Core Consistent Quality is the percentage of users’ tests that met the minimum recommended performance thresholds for lower performance applications including SD video, voice calls and web browsing.
Related Analysis
Our Methodology
Collecting billions of individual measurements daily from over 100 million devices globally, Opensignal independently analyzes mobile user experience on every major network operator around the globe.
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Confidence Intervals
For every metric we calculate statistical confidence intervals indicated on our graphs. When confidence intervals overlap, our measured results are too close to declare a winner. In those cases, we show a statistical draw. For this reason, some metrics have multiple operator winners.
In our bar graphs we represent confidence intervals as boundaries on either sides of graph bars.
In our supporting-metric charts we show confidence intervals as +/- numerical values.
Why confidence intervals are vital in analyzing mobile network experience