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Greece

Mobile Network Experience Report
July 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, Technical Analyst Data Collection Period: Apr 01 - Jun 29, 2023

Greece

Mobile Network Experience Report
July 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, Technical Analyst

Data Collection Period: Apr 01 - Jun 29, 2023

Key Findings

Cosmote leads the pack in Video, Live Video and Games Experience

Our Cosmote users observe the best quality of experience while streaming on-demand videos, live videos and playing multiplayer mobile games in Greece. As a result, Cosmote is the outright winner of the Video, Live Video and Games Experience awards with scores of 67.4, 55.2 and 68.4 points on 100-point scales, respectively. However, when we look at 5G Video, 5G Live Video and 5G Games Experience, there is no statistical difference in the scores across all three operators. Therefore Cosmote, Nova and Vodafone are joint winners of these awards.

The fastest download speeds are with Cosmote

Cosmote wins both download speed awards outright — Download Speed Experience and 5G Download Speed. Cosmote wins Download Speed Experience with a score of 52.2Mbps, around 22.8Mbps (77.2%) ahead of statistically tied Vodafone and Nova. Cosmote also wins the 5G Download Speed with a score of 183.4Mbps — a lead of around 67.9 Mbps (58.8%) over second-placed Vodafone and Nova.

Vodafone takes the 5G Upload Speed award

In the last report, this award was shared by Nova and Vodafone with statistically tied scores, but this time Vodafone wins it outright. Vodafone users experience average 5G upload speeds of 29.2Mbps, ahead of Cosmote and Nova users' identical score of 25.1Mbps.

5G Availability with Cosmote is more than double that with Vodafone and Nova

Cosmote continues to lead in 5G Availability, this time with a score of 18.6% — more than double that of Nova and Vodafone, which statistically tied for second place with scores of 8.7-8.8%. While our Nova and Vodafone users have not seen a statistically significant change in their 5G Availability from the last report, Cosmote’s score has dropped by 3.2 percentage points.

Nova is the outright winner of 5G Voice App Experience award

Last time, Nova and Vodafone were joint winners in this category. However, this time Nova breaks through the statistical tie and wins the 5G Voice App Experience award outright with a score of 84.1 points (on a 100-point scale) — beating Vodafone by 1.2 points. This means Nova users now enjoy the best experience while using over-the-top (OTT) voice services on mobile voice apps with 5G in Greece.

Cosmote and Vodafone are joint winners of the Availability award

In our last report, we saw Nova and Vodafone beat Cosmote in terms of Availability — the proportion of time connected to 3G or better signal. Since then, Nova’s Availability score has dropped significantly, by 3.8 percentage points from 94.8% to 91%, and so did Vodafone’s — by 1.8 percentage points — while Cosmote’s score rose by 1.4 percentage points. As a result, Cosmote and Vodafone are the new joint winners of the Availability award, with statistically tied scores of 93.4-94.3%.

Mobile Experience Awards

July 2023, Greece Report
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Market Overview

Opensignal’s latest analysis on Greece shows that Cosmote is the operator to beat when it comes to users’ mobile network experience. Cosmote wins five overall experience awards outright. Cosmote outperforms the competition in Video Experience, Live Video Experience, Games Experience, as well as both Download Speed Experience and Upload Speed Experience. Furthermore, when it comes to consistent quality, Cosmote stands out as the undisputed champion. Meanwhile, Cosmote and Vodafone are joint winners of the Availability award, which is a change from the previous report where Nova and Vodafone shared the top spot. This shift in ranking is due to decreases in Nova and Vodafone's scores, while our Cosmote users saw a slight improvement. Availability is a measure of the proportion of time users spend connected to a 3G or better signal, and the 3G switch-off activity by Nova and Vodafone is one of the reasons for their declining scores.

Turning to 5G categories, Cosmote continues to lead in 5G Download Speed and 5G Availability, by significant margins. On the other hand, Vodafone wins the 5G Upload Speed award outright, and Nova wins the 5G Voice App Experience award. Meanwhile, for 5G Video, 5G Live Video and 5G Games Experience awards, all three operators — Cosmote, Nova and Vodafone — are statistically tied for first place.

In this report, we've analyzed our data gathered in the 90-day period starting on April 1, 2023, and ending on June 29, 2022, to see how three national operators in Greece — Cosmote, Nova and Vodafone — stack up.

Overall Experience
5G 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
Cosmote
67.4
Nova
63.4
Vodafone
63.3
017.53552.570
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Live Video Experience
in 0-100 points
Cosmote
55.2
Nova
51.7
Vodafone
51.2
015304560
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Games Experience
in 0-100 points
Cosmote
68.4
Nova
64.3
Vodafone
61.2
017.53552.570
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Voice App Experience
in 0-100 points
Cosmote
78.4
Nova
78.0
Vodafone
76.7
020406080
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Download Speed Experience
in Mbps
Cosmote
52.2
Nova
28.8
Vodafone
30.1
014284256
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
Upload Speed Experience
in Mbps
Cosmote
11.9
Nova
8.1
Vodafone
9.3
0481216
The brackets represent confidence intervals.
Read why confidence intervals are important.
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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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5G Video Experience
5G Live Video Experience
5G Games Experience
5G Voice App Experience
5G Download Speed
5G Upload Speed
5G Video Experience
in 0-100 points
Cosmote
75.1
Nova
75.5
Vodafone
75.2
020406080
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
5G Live Video Experience
in 0-100 points
Cosmote
62.1
Nova
59.5
Vodafone
62.0
016.53349.566
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
5G Games Experience
in 0-100 points
Cosmote
77.7
Nova
79.4
Vodafone
78.6
021.54364.586
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
5G Voice App Experience
in 0-100 points
Cosmote
81.7
Nova
84.1
Vodafone
82.9
021.54364.586
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
5G Download Speed
in Mbps
Cosmote
183.4
Nova
112.7
Vodafone
118.4
047.595142.5190
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image
5G Upload Speed
in Mbps
Cosmote
25.1
Nova
25.1
Vodafone
29.2
09182736
The brackets represent confidence intervals.
Read why confidence intervals are important.
Download Image

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.

Learn more

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.

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.

Learn more

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.

Learn more

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.

Learn more

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).

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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).

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Cosmote

Nova

Vodafone

Availability
5G Availability
Availability
% of time
Cosmote
94.3
Nova
91.0
Vodafone
93.4
024487296
The brackets represent confidence intervals.
Read why confidence intervals are important.
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5G Availability
% of time
Cosmote
18.6
Nova
8.7
Vodafone
8.8
05101520
The brackets represent confidence intervals.
Read why confidence intervals are important.
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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.

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.

Learn more

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.

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.

Learn more

Consistent Quality
Consistent Quality
% of tests
Cosmote
79.2
Nova
62.8
Vodafone
64.1
020406080
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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