Opensignal is the independent global standard for analyzing consumers' connectivity experiences. Our industry reports are the definitive guide to understanding what happens when people use their mobile and broadband connections in their daily life.
Opensignal is the independent global standard for analyzing consumers' connectivity experiences. Our industry reports are the definitive guide to understanding what happens when people use their mobile and broadband connections in their daily life.
TIM takes the top spot for both of our Consistency Metrics. It wins for Consistent Quality for the fourth time in a row with a score of 72.7% and a more than four percentage point lead over second-placed Vivo. Consistent Quality measures how often users’ experience on a network is sufficient for a range of common but more demanding tasks. TIM also now wins for Reliability Experience, an award that was held by Claro in our last report. Reliability represents the ability of our users to connect to and successfully complete a range of (basic) tasks on operators’ networks.
In this report, Vivo leads for three of our four speed metrics — Download Speed Experience, 5G Download Speed and overall Upload Speed Experience. Vivo wins for 5G Download Speed with a lead of nearly 14Mbps over second-placed Claro, and for overall Download Speed Experience by a narrower margin of nearly 2Mbps – again with Claro in second place.
TIM comes top in both our overall awards for Video Experience and Live Video Experience. This shows how our Brazilian users on TIM’s network have the best experience across both on-demand video and live streamed video. However, it’s a very tight race, and all three operators are within a single point for both Video Experience and Live Video Experience.
While TIM leads for overall video experience, Vivo now takes over the top spot for 5G Video Experience and 5G Live Video Experience. As with our overall metrics, all three operators achieve very similar results – and third-placed Claro is still only just over one point behind for both 5G Video Experience and 5G Live Video Experience.
Brazil’s mobile experience is led by TIM and Vivo – with each operator taking home six awards apiece out of the 14 awards available in the latest Mobile Experience report. Since our last report, TIM has picked up the top spot for Reliability Experience, which represents how often our users are able to connect to and successfully complete (basic) tasks on a network. It also wins for our revised 5G Availability metric, which shows how often a 5G connection was available for users, regardless of whether it was actively in use.
Vivo meanwhile picks up the awards for Upload Speed Experience, as well as 5G Video Experience and 5G Live Video experience. It also retains its lead for 5G Games Experience and 5G Download Speed — demonstrating the strength of its 5G network.
2025 marked three years since the original deployment of 5G in Brazil. In our reporting, Brazil often stands out for its 5G download speeds — demonstrating that Brazil’s 5G networks provide extremely high-quality connectivity, even as they grow in extent and usage. Anatel (the Brazilian regulator) reports that 5G deployments are ahead of schedule. As of Q2 2025, Anatel reported that 5G coverage reached nearly 64% of the country – representing the proportion of the population living in municipalities with 5G. This is ahead of the 58% target Anatel had set for operators in 2027.
Among countries in Central and Southern America, Brazil has the second largest percentage of 5G connections according to GSMA Intelligence, behind Chile. This figure has grown by over seven percentage points when comparing Q4 2024 to Q4 2025. However, Brazil’s regulator is already planning ahead to ensure plentiful capacity ahead of growing demand. Anatel, the regulator, has a series of future auctions on the horizon including the delayed 700 MHz spectrum auction for residual unused spectrum, and a potential 6 GHz tender later in 2026.
In this report we examine the mobile network experience of the three main mobile network operators in Brazil — Claro, TIM and Vivo — over a period of 90 days starting on October 1, 2025, and ending on December 29, 2025, to see how they fared. We also examine the experience across Brazil’s 26 states and the Federal District, to see how experience varies across the country.
TIM retains the award for Video Experience in this report, winning outright with 63.0 points on a 100-point scale, however the rankings are close. Both second-placed Claro and third-placed Vivo are within a single point of TIM.
All operators place in the Good (58-68) category, meaning that our users are, on average, able to stream video at 720p or better with satisfactory loading times and little stalling. Video Experience scores account for adaptive bitrate streaming (ABR), a technology that allows Opensignal to accurately represent users' real video experience including video streams up to 4K quality.
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:
As with Video Experience, TIM also narrowly takes the win for Live Video Experience. It wins with a score of 57.2 points on a 100-point scale and leads by around one point over second-placed Claro and Vivo, whose scores are statistically tied at 56.3-56.4 points.
Since the last report, Claro’s score has increased by five points, while Vivo’s and TIM’s scores have each risen by three points. All operators place in the Very Good (53-58) category, meaning that our users are, on average, able to stream video at least at 720p or 1080p with low loading times, little stalling and a satisfactory live offset.
Operators’ Live Video Experience scores are determined using a range of measures that impact users’ perceived live streaming viewing experience, including picture quality, video loading time, and stall rate, as well as live playback offset — the time difference between real-time and the current playback position a viewer sees. Unlike Video Experience, which represents on-demand video streams, Live Video Experience quantifies live video streaming used for current events, such as live sports, game streams, music concerts, or news where the event is happening at that moment in time.
Opensignal’s Live Video Experience quantifies the quality of real-time video streamed to mobile devices by measuring video streams over an operator's network. The metric extends the existing International Telecommunication Union (ITU) approach used for Opensignal's on-demand Video Experience metric, built upon detailed studies which have derived a relationship between technical parameters, including live playback offset, picture quality, video loading time and stall rate, with the perceived live video experience as reported by real people. To calculate live video experience, we are directly measuring live video streams from end-user devices and using this extension of ITU's approach to quantify the overall live video experience for each operator on a scale from 0 to 100. The videos tested include a mixture of resolutions and are streamed directly from the world’s largest video content providers.
In this report, Claro maintains its win for Games Experience with a score of 71.6 points on a 100-point scale, leading second-placed TIM by three points (68.7). Vivo ranks third with 67.6 points. Since the last report, scores have risen across the board, with Claro up six points, TIM up four points and Vivo up three points. All three operators are in the Fair (65-75) category. A Fair (65-75) rating indicates that users find the experience ‘average’: in most cases the game responds to player actions and most users feel in control, but the majority of players notice a delay between their actions and the outcomes in the game.
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:
Vivo wins for the fastest Download Speed Experience in this report, with a score of 51.3Mbps, leading second-placed Claro by nearly 2Mbps. TIM ranks third with 42.2Mbps. Compared with the last report, Claro’s score has increased by 12Mbps, Vivo’s by 11Mbps, and TIM’s by 8Mbps.
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:
Vivo takes the Upload Speed Experience award in this report, taking over from the previous winner, Claro. Vivo wins with a score of 10Mbps, just ahead of second-placed Claro’s 9.7Mbps, while TIM ranks third with 8.4Mbps.
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:
Vivo takes over the top spot for 5G Video Experience with a score of 75.8 out of 100. The previous winner, TIM, now sits in second at 75.4 points, while Claro ranks third with 74.7 points.
All operators place in the Very Good (68-78) category, meaning that our users are, on average, able to stream video at 1080p or better with satisfactory loading times and little stalling. 5G Video Experience scores account for adaptive bitrate streaming (ABR), a technology that allows Opensignal to accurately represent users' real video experience including video streams up to 4K quality.
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.
Vivo also takes over the lead for 5G Live Video Experience. It wins with a score of 71.9 points on a 100-point scale, leading second-placed TIM by less than one point (71.7). Claro ranks third with 70.8 points.
All operators place in the Excellent (58 or above) category, meaning that our users are, on average, able to stream video at least at 1080p with low loading times, little stalling and a satisfactory live offset.
Operators’ 5G Live Video Experience scores are determined using a range of measures that impact users’ perceived live streaming viewing experience, including picture quality, video loading time, and stall rate, as well as live playback offset — the time difference between real-time and the current playback position a viewer sees. Unlike 5G Video Experience, which represents on-demand video streams, 5G Live Video Experience quantifies live video streaming used for current events, for example when users watch live sports, game streams, music concerts, or news where the event is happening at that moment in time.
Opensignal’s Live Video Experience quantifies the quality of real-time video streamed to mobile devices by measuring video streams over an operator's network. The metric extends the existing International Telecommunication Union (ITU) approach used for Opensignal's on-demand Video Experience metric, built upon detailed studies which have derived a relationship between technical parameters, including live playback offset, picture quality, video loading time and stall rate, with the perceived live video experience as reported by real people. To calculate live video experience, we are directly measuring live video streams from end-user devices and using this extension of ITU's approach to quantify the overall live video experience for each operator on a scale from 0 to 100. The videos tested include a mixture of resolutions and are streamed directly from the world’s largest video content providers.
5G Live Video Experience quantifies the quality of mobile video experienced by Opensignal users on real-world live video streams when they were connected to 5G.
Vivo wins the 5G Games Experience award for the second report in a row. It retains the award outright with a score of 85.7 points on a 100-point scale, leading second-placed Claro by less than one point (85.3 points), while TIM ranks third with 83.8 points.
Claro and Vivo are now in the Excellent (85 or above) category, while TIM places one category lower in Good (75-85). An Excellent (85 or above) rating means that the vast majority of users deem this network experience acceptable, with nearly all users feeling in control of the game and receiving immediate feedback on their actions, and with no noticeable delay in almost all cases. A Good (75-85) rating means that most users deem the experience acceptable, with gameplay generally controllable and immediate feedback between actions and outcomes, and most users not experiencing a delay between their actions and the game.
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.
For the fifth consecutive time, Vivo wins the 5G Download Speed award with a score of 336.4Mbps, leading second-placed Claro (322.8Mbps) by 14Mbps, while TIM ranks third on 316Mbps. 5G Download Speed is down slightly compared to our last report, likely as a result of more users now beginning to take advantage of these 5G networks.
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).
Claro once again leads for 5G Upload Speed, taking the award outright with a score of 28.4Mbps and a nearly 1Mbps lead over second-placed Vivo on 27.6Mbps, while TIM ranks third with 25.0Mbps.
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).
TIM retains the award for Time on Network (previously called Availability) in this report, taking the award outright with a score of 96.4% and a lead of less than one percentage point over second-placed Claro on 96.1%, while Vivo ranks third with 95.6%.
Our time on network and availability metrics are not measures 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 time on network 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 time on network and availability metrics take a user-centric, time-based approach that complements the user-centric and geographical-based methodology used by our reach metrics.
Time on Network shows the proportion of time all Opensignal users on an operator’s network had either a 3G, 4G or 5G connection.
In this newly-refreshed 5G Availability metric — which measures how often users detect a 5G signal, regardless of whether their data traffic is actively using 5G — TIM wins outright with a score of 68.4%. It leads second-placed Vivo by more than three percentage points. Claro comes third at 23.4%. The 5G Availability metric’s definition was updated in Q4 2025 as part of refinement of our metric framework.
Our time on network and availability metrics are not measures 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 time on network 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 time on network and 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 a 5G connection, whether or not it was used.
TIM remains the leader for Consistent Quality for the fourth time. It wins with a score of 72.7% and a more than four percentage point lead over second-placed Vivo on 68.4%, while Claro ranks third with 68.0%. Since the last report, TIM’s score has increased by four percentage points, Claro’s has also risen by four percentage points, and Vivo’s has improved by two percentage points.
Consistent Quality demonstrates how often a network is sufficient to support common mobile application requirements at a level that is ‘good enough’ for users to maintain (or complete) various typical demanding tasks on their devices, assessing experience indicators including download speed, upload speed, latency, jitter, packet loss, and time to first byte.
Consistent Quality measures if the network is sufficient to support common mobile application requirements at a level that is ‘good enough’ for users to maintain (or complete) various typical tasks on their devices.
We combine different experience indicators such as download throughput, upload throughput, latency, jitter, packet discard, and time to first byte to calculate Consistent Quality. These components are evaluated against thresholds recommended by various more demanding common applications used for a range of common tasks.
To calculate the metric value, the proportion of tests that pass the requirements of Consistent Quality is multiplied by the test success ratio, which is the proportion of completed tests to all tests conducted. Tests that pass indicate that activities such as video calling, uploading an image to social media, or using smart home applications will be possible without noticeable lag or slowdown.
TIM overtakes Claro to win the Reliability Experience award in this report. It now takes the award outright with a score of 864 points on a 100-1000 point scale, leading second-placed Claro (855 points) by nine points, while Vivo ranks third with 848 points. Since the last report, TIM’s score has increased by 37 points, Claro’s by 25 points and Vivo’s by 22 points.
Opensignal’s Reliability Experience measures the ability of our users to connect to and successfully complete (basic) tasks on operators’ networks, based on % time connected — the proportion of time Opensignal users can successfully connect to a mobile network; Data Connectivity — the proportion of time when the network is available and the device can connect to the internet; Task completion — whether tasks initiated by the user’s device are completed; and Sufficiency — the probability that (basic) tasks will be executed sufficiently well for the user.
Opensignal’s Reliability Experience measures the ability of Opensignal users to connect to and successfully complete (basic) tasks on communication service providers’ (CSP) networks. It analyzes how much Opensignal users’ experience is affected by the radio access and core network, along with issues that prevent them from connecting to the internet even if they have a connection to their CSP’s network. It also factors in users’ ability to successfully use lower performance applications including SD video, over-the-top voice calls and web browsing.
Collecting billions of individual measurements daily from over 100 million devices globally, Opensignal independently analyzes mobile and broadband user experience on every major network operator around the globe.
Opensignal is the leading global provider of independent insights into consumers' connectivity experiences and choice of carrier. Our proprietary insights into mobile and broadband networks give operators the solutions they need to profitably compete and win, from executive level scorecards and public validation to pin-point level engineering analytics and consumer decision dynamics.
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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