Taiwan

With a score of 74.3 Chunghwa wins the Video Experience award, slightly ahead of FarEasTone (73.3) and Taiwan Mobile (72.8). All five operators rated as Very Good (65<75) which means users saw generally fast loading times and only occasional stalling but the experience might have been somewhat inconsistent across users or video providers or resolutions.

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 to quantify the overall 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.

There is a three way tie on Games Experience with Chunghwa, FarEasTone and Taiwan Mobile jointly winning the award. All three winning operators rate as Good (75<85) — this means most users deemed the experience acceptable. Gameplay experience was generally controllable and the user received immediate feedback between their actions and the outcomes in the game. Most users did not experience a delay between their actions and the game's response.

Games Experience quantifies the experience when playing real-time multiplayer mobile games. The approach is built on 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). Multiplayer game genres include: battle royale, example games include PUBG, Garena Freefire, and Fortnite; and MOBA (massive online battle area), an example of which is Arena of Valor.

T Star misses out on Voice App Experience as the other four operators jointly win the award. Voice App Experience measures the quality of experience for over-the-top (OTT) voice services — example apps include LINE, WhatsApp, Skype, Facebook Messenger — using a model derived from an 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 real-world measurements that Opensignal measures at scale from smartphone users and their perceived call quality. Voice App Experience for each operator is calculated on a scale from 0 to 100.

Four of Taiwan's operators have seen 5G services help to boost the overall Download Speed Experience. Our users on those four operators have seen their average download speed increase as follows: Chunghwa's Download Speed Experience score has increased from 44.2 Mbps to 58.6 Mbps, FarEasTone's score has risen from 36.8 Mbps to 53.1 Mbps; Taiwan Mobile's score from 31 Mbps to 37.4 Mbps; and T Star from 22.8 Mbps to 25.3 Mbps now. But GT's score has not risen: it was 17 Mbps six months ago and is 15.4 Mbps now.

FarEasTone holds onto the Upload Speed Experience award with a score of 12.7 Mbps. Having high average upload speeds helps users to share large photos or videos on social media, connected to virtual private networks (VPNs), or send attachments via email.

While the operators' scores are similar on Upload Speed Experience, there has been some movement since the last report six months ago. Second placed Chunghwa pulled ahead of Taiwan Mobile and increased its lead over its competitor from 0.3 to 1.5 Mbps.

Six percentage points separate the five operators on 4G Availability. GT wins the 4G Availability award with a score of 96%. 4G Availability measures the proportion of time people have a 4G or 5G 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 reflection of the true user experience.

With a score of 9.9 on a ten-point scale Chunghwa wins the 4G Coverage Experience award again. This is a very high score. In second place, FarEasTone and Taiwan Mobile's scores of 9.6 remained unchanged, as were T Star's score of 9.4 and last placed GT's score of 9.

4G Coverage Experience metric is a measure of how mobile subscribers experience 4G coverage on an operator's network. Measured on a scale of 0-10, it analyzes the locations where customers of a network operator received a 4G signal relative to the locations visited by users of all network operators.