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Vietnam

Mobile Network Experience Report
September 2023

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.

Author: Hardik Khatri, Senior Analyst Data Collection Period: May 01 - Jul 29, 2023

Vietnam

Mobile Network Experience Report
September 2023

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.

Author: Hardik Khatri, Senior Analyst

Data Collection Period: May 01 - Jul 29, 2023

Key Findings

MobiFone users have the most consistent experience

MobiFone is the first Vietnamese operator to win the Consistent Quality award, which replaces the Excellent Consistent Quality and Core Consistent Quality awards. MobiFone comes top with a score of 68.1%, while Viettel Mobile is in second place with 66.1%. Vinaphone and Vietnamobile are far behind with 59.3% and 40.9%, respectively. 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 demanding tasks on their devices.

MobiFone is the outright winner of the Voice App Experience award

Our MobiFone users have the best overall experience when using over-the-top voice apps in Vietnam. As a result, MobiFone is the new winner of the Voice App Experience award, with a score of 78.2 points on a 100-point scale. This is a change from the previous report, when Viettel Mobile and Vinaphone shared the award with statistically tied scores of 78.7-78.8 points on a 100-point scale, as both operator’s scores dipped by 1.8-1.9 points, while MobiFone and Vietnamobile’s scores remained statistically unchanged. MobiFone, Viettel Mobile and Vinaphone remain in the Acceptable (74-80) category, while Vietnamobile continues to rate as Poor (66-74).

MobiFone and Vinaphone are top for Live Video Experience and Games Experience

MobiFone and Vinaphone share Opensignal’s inaugural award for Live Video Experience in Vietnam, which quantifies the quality of real-time video streamed to mobile devices by measuring video streams over an operator's network. MobiFone and Vinaphone lead with statistically tied scores of 51.2-53.8 points (on a 100-point scale). Likewise, MobiFone and Vinaphone are joint winners of the Games Experience award, with scores of 64.6-65.1 points (on a 100-point scale). This means our MobiFone and Vinaphone users enjoy the best real-time video streaming quality and multiplayer mobile gaming experience in Vietnam on average.

Vinaphone remains top for Download Speed Experience and reclaims the Upload Speed Experience award

Vinaphone continues to hold on to the Download Speed Experience award, with our users clocking up the fastest download speeds on its network, 31.8Mbps on average. The Download Speed Experience on Vinaphone has dipped by 3.3Mbps (9.5%), however Vinaphone still commands a noteworthy lead of 6.1Mbps over second-placed Viettel Mobile. On the other hand, the Upload Speed Experience of our MobiFone and Viettel Mobile users has also declined by 2Mbps and 0.7Mbps, respectively, while that on Vinaphone has remained statically unchanged compared to the the last report. As a result, Vinaphone is also the winner of the Upload Speed Experience award this time with a score of 10.5Mbps, beating ex-winner MobiFone by 1.1Mbps. Vietnamobile remains last-placed, however our users on its network have reported the largest improvements across both the speed categories — an increase of 2Mbps (33.5%) in Download Speed Experience and 1Mbps (49.2%) in Upload Speed Experience.

MobiFone users report the highest Availability in Vietnam, while Viettel Mobile comes top for 4G Availability

Our MobiFone users spend the largest proportion of their time connected to a 3G or better cellular signal (Availability) — 96.5%, on average. Meanwhile, Vinaphone follows closely behind with a score of 95%. However, when we look at the proportion of time 4G users connected to 4G only, Viettel Mobile remains the outright winner with a 92.7% score, significantly ahead of MobiFone and Vinaphone’s statistically tied scores of 85.9-86.7% and Vietnamobile’s 74%.

Mobile Experience Awards

September 2023, Vietnam Report
M
MobiFone
V
Vietnamobile
V
Viettel Mobile
V
Vinaphone
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Market Overview

In Opensignal's latest analysis of the Vietnamese mobile network experience, MobiFone narrowly takes home the lion’s share of awards, winning six out of nine awards — either jointly or outright. MobiFone is the outright winner of Voice App Experience, Availability as well as the Consistent Quality award and jointly shares the top spot alongside Vinaphone for Live Video and Games Experience. Furthermore, MobiFone, Viettel Mobile and Vinaphone are joint winners of the Video Experience award. However, when it comes to mobile speeds, Vinaphone wins the Download and Upload Speed Experience awards outright as our Vinaphone users across the country, on average, observe the fastest overall download and upload speeds. On the other hand, Viettel Mobile is top for 4G Availability — the proportion of time 4G users have a 4G connection.

In this report, we've analyzed the mobile network experience of four national operators in Vietnam — MobiFone, Vietnamobile, Viettel Mobile and Vinaphone — in the 90 days starting on May 1, 2023, and ending on July 29, 2023.

Overall Experience
Coverage
Consistency
Video Experience
Live Video Experience
Games Experience
Voice App Experience
Download Speed Experience
Upload Speed Experience
Video Experience
in 0-100 points
MobiFone
61.4
Vietnamobile
42.8
Viettel Mobile
60.4
Vinaphone
62.3
016.53349.566
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Live Video Experience
in 0-100 points
MobiFone
51.2
Vietnamobile
38.2
Viettel Mobile
48.4
Vinaphone
53.8
015304560
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Games Experience
in 0-100 points
MobiFone
65.1
Vietnamobile
49.7
Viettel Mobile
60.9
Vinaphone
64.6
017.53552.570
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Voice App Experience
in 0-100 points
MobiFone
78.2
Vietnamobile
72.2
Viettel Mobile
77.1
Vinaphone
76.8
020406080
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Download Speed Experience
in Mbps
MobiFone
24.0
Vietnamobile
7.9
Viettel Mobile
25.7
Vinaphone
31.8
09182736
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Upload Speed Experience
in Mbps
MobiFone
9.4
Vietnamobile
2.9
Viettel Mobile
8.2
Vinaphone
10.5
0481216
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image

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.

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Definitions

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.

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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.

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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.

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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).

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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).

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MobiFone

Vietnamobile

Viettel Mobile

Vinaphone

Availability
4G Availability
Availability
% of time
MobiFone
96.5
Vietnamobile
92.5
Viettel Mobile
93.1
Vinaphone
95.0
0255075100
The brackets represent confidence intervals.
Read why confidence intervals are important.
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4G Availability
% of time
MobiFone
86.7
Vietnamobile
74.0
Viettel Mobile
92.7
Vinaphone
85.9
024487296
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image

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.

Map Definition

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.

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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.

4G Availability shows the proportion of time Opensignal users with a 4G device and a 4G subscription — but have never connected to 5G — had a 4G connection.

Map Definition

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.

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Consistent Quality
Consistent Quality
% of tests
MobiFone
68.1
Vietnamobile
40.9
Viettel Mobile
66.1
Vinaphone
59.3
017.53552.570
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image

Definitions

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 speed, upload speed, 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.

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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.

About Opensignal

Opensignal is the mobile analytics company committed to improving mobile connectivity across the globe. We are the independent authority for understanding the true experience consumers receive on wireless networks.

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