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Serbia

Mobile Network Experience Report
August 2022

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: Ian Fogg, VP Analysis Data Collection Period: Apr 01 - Jun 29, 2022

Serbia

Mobile Network Experience Report
August 2022

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: Ian Fogg, VP Analysis

Data Collection Period: Apr 01 - Jun 29, 2022

Key Findings

A1 wins Download Speed Experience with a score of 45.5 Mbps

The average download speeds of our A1 users were the fastest in Serbia. Yettel and mts tied for second place with statistically tied scores of 32 Mbps and 32.1 Mbps, respectively.

The Games Experience award is shared by A1 and mts

In multiplayer mobile gaming, A1 and mts users had a markedly better experience than our Yettel users. On a 100-point scale, A1 and mts had statistically tied scores of 73.8 and 75.4, respectively, but Yettel was approximately 10 points behind with a score of 64.7.

A1 users had the most consistent mobile experience

In both the consistency awards, A1 users had the best experience in Serbia with the highest proportion of users meeting the minimum thresholds for both demanding applications and more mainstream applications. In Excellent Consistent Quality, A1 scores 81%, ahead of both Yettel (78.6%) and mts (77.2%). In Core Consistent Quality the victory margin was narrower — under one percentage point — yet A1 also wins with a score of 90.4%.

Yettel wins both awards in the coverage category

In 4G Coverage Experience, Yettel wins with a score of 7.8 on a 10 point scale ahead of mts and A1 with statistically tied scores of 7.4 and 7.3, respectively. Similarly, when we examine the time our users spent connected with a 3G or better mobile service, Yettel wins with 97.3%, approximately fourpercentage points higher than the tie scores of mts and A1.

Mobile Experience Awards

August 2022, Serbia Report
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Market Overview

In the latest Opensignal Serbia report, we see fierce competition between the operators. Following the re-brand from Telenor to Yettel earlier this year, the company secures two awards outright and a further two joint wins. A1 has the biggest haul of awards with three sole wins and a further four joint wins, which rounds off its first twelve months under the A1 brand, while mts picks up a couple of joint wins.

For the first time, we introduce two awards for the consistency of the mobile experience in this report: Excellent and Core Consistent Quality. These measures complement the existing awards for video streaming, multiplayer gaming, over-the-top voice app communications, speed and availability.

Overall Experience
Coverage
Consistency
Video Experience
Games Experience
Voice App Experience
Download Speed Experience
Upload Speed Experience
Video Experience
in 0-100 points
A1
61.2
mts
55.8
Yettel
59.3
016.53349.566
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Games Experience
in 0-100 points
A1
73.8
mts
75.4
Yettel
64.7
020406080
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Voice App Experience
in 0-100 points
A1
79.5
mts
80.4
Yettel
77.1
021.54364.586
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Download Speed Experience
in Mbps
A1
45.5
mts
32.1
Yettel
32.0
012.52537.550
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Upload Speed Experience
in Mbps
A1
12.3
mts
11.1
Yettel
12.4
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 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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A1

mts

Yettel

Availability
4G Coverage Experience
Availability
% of time
A1
93.0
mts
93.7
Yettel
97.3
0255075100
The brackets represent confidence intervals.
Read why confidence intervals are important.
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4G Coverage Experience
in 0-10 points
A1
7.3
mts
7.4
Yettel
7.8
02468
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

4G Coverage Experience measures 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.

In simple terms, 4G Coverage Experience measures the mobile coverage experience in all the locations that matter most to everyday users — i.e. all the places where they live, work and travel. It considers all the areas that Opensignal users visit, the portion of locations that 4G is available to them, and locations that more users visit have higher importance to them.

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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Excellent Consistent Quality
Core Consistent Quality
Excellent Consistent Quality
% of tests
A1
81.0
mts
77.2
Yettel
78.6
021.54364.586
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Core Consistent Quality
% of tests
A1
90.4
mts
88.9
Yettel
89.6
024487296
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image

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.

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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.

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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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