Another stage of the Drive Test tour conducted by RFBENCHMARK specialists has come to an end. This time, the precise test results allowed for the assessment of mobile Internet quality and cellular services in the Pomeranian Voivodeship.

Let us recall that similar Drive Test measurements have already been conducted in Warsaw, as well as in the Łódź, Greater Poland, and Kuyavian-Pomeranian Voivodeships.

In Pomerania, the study focused on the quality of services provided by the four largest mobile network operators: Orange, Play, T-Mobile, and Plus. The analysis covered several key categories for both voice call quality—via VoLTE and WhatsApp—and mobile Internet performance over 5G. The tests included download and upload speeds, transmission delays, and the comfort of streaming online video.

A total of 14 devices were installed in the test vehicle, including the latest Samsung S24 Ultra smartphones and advanced PCTEL GFlex and IBFlex signal analyzers, which enabled precise measurement of cellular network quality. Thanks to this setup, the team was able to thoroughly evaluate the services of all four major operators, focusing on both voice calls (VoLTE and WhatsApp) and 5G data transmission—covering speed, latency, and video streaming quality.

Mobile Internet Speed in the Pomeranian Voivodeship (2025)

File Transfer Success Rate – Download and Upload

Play achieved the highest download success rate at 99.24%, ahead of Orange (98.74%) and Plus (98.28%). T-Mobile posted the lowest—though still very good—score at 97.38%.

For upload, Play also led with 99.28%, followed closely by Orange (98.57%) and Plus (98.32%). T-Mobile again ranked last with 97.33%.

Download and Upload Speeds

T-Mobile recorded the fastest download speed at 592.43 Mbps, clearly outpacing the competition. Orange followed with 434.40 Mbps, Play with 398.26 Mbps, and Plus came last with 171.92 Mbps, indicating significantly lower data throughput performance.

As for upload speeds, Play led with 78.38 Mbps. Orange (75.48 Mbps) and T-Mobile (72.83 Mbps) delivered comparable results. Plus again trailed behind with 54.02 Mbps.

Latency

Round Trip Time (RTT) measures the average latency in milliseconds for a small data packet (PING) to travel to a server and back. The lower the RTT, the more responsive the connection.

Play had the best latency with an average RTT of 32 ms, indicating a highly responsive connection. T-Mobile (43 ms) and Plus (46 ms) offered moderately fast response times. Orange had the highest RTT at 47 ms, which may result in slightly slower responsiveness in demanding apps—though all results remain acceptable for most users.

Voice Call Quality in the Pomeranian Voivodeship (2025)

VoLTE

The following indicators show the performance of VoLTE (Voice over LTE) technology, which enables high-quality calls without switching from 4G to older standards.

In the Call Setup Success Rate category, T-Mobile topped the chart with 99.37%, just ahead of Orange (99.33%). Play (99.22%) and Plus (99.08%) followed closely, indicating strong reliability across all networks.

More significant differences appeared in the Call Drop Rate: T-Mobile (0.73%) and Plus (0.74%) had the lowest rates of dropped calls. Orange (1.48%) and Play (1.95%) performed less well in this regard.

When it comes to audio quality, measured by the MOS (Mean Opinion Score), T-Mobile and Play led with an identical average score of 4.45 (out of 5). Orange followed with 4.42, while Plus scored 4.30.

The Audio Quality MOS < 1.6 indicator, showing the percentage of very poor-quality calls, was lowest for Play (1.12%) and T-Mobile (1.16%), while Plus (1.60%) and Orange (2.18%) had higher shares of low-quality calls.

		KPI Free Mode Voice - VoLTE
Mierzony parametr	Orange	T-Mobile	Play	Plus
Call Setup Success Rate (%)	99,33 %	99,37 %	99,22 %	99,08 %
Call Drop Rate (%)	1,48 %	0,73 %	1,95 %	0,74 %
Audio Quality MOS Average	4,42	4,45	4,45	4,30
Audio quality MOS < 1.6 (%)	2,18 %	1,16 %	1,12 %	1,60 %

gOTT Whatsapp 

This section presents the quality and reliability of voice calls made via WhatsApp, evaluated using gOTT metrics in Free Mode. Four aspects were measured: call setup success, call drop rate, average audio quality (MOS), and the share of very poor-quality calls.

Plus came out on top in Call Setup Success Rate with 99.69%, ahead of Play (99.50%). Orange (98.67%) and T-Mobile (98.58%) scored slightly lower but still indicated high reliability.

In terms of Call Drop Rate, Plus again performed best with 1.30%, followed by T-Mobile (1.33%) and Play (1.38%). Orange had the highest drop rate at 1.55%.

For audio quality, Play achieved the best MOS score of 4.08, indicating very good audio. Plus followed with 4.00, T-Mobile with 3.96, and Orange had the lowest, though still good, at 3.91.

The Audio Quality MOS < 1.6 metric showed the fewest very poor-quality calls occurred on Play (0.61%), followed by T-Mobile (1.11%), Plus (1.48%), and Orange (1.69%).

		KPI Free Mode Voice - gOTT Whatsapp
Mierzony parametr	Orange	T-Mobile	Play	Plus
Call Setup Success Rate (%)	98,67 %	98,58 %	99,50 %	99,69 %
Call Drop Rate (%)	1,55 %	1,33 %	1,38 %	1,30 %
Audio Quality MOS Average	3,91	3,96	4,08	4,00
Audio quality MOS < 1.6 (%)	1,69 %	1,11 %	0,61 %	1,48 %

KPI NR/FreeMode Data – TWAMP

TWAMP (Two-Way Active Measurement Protocol) indicators measure interactive data transmission quality—crucial for services like video calls, online gaming, or teleconferencing.

The TWAMP Success Rate shows the share of successful tests. Play led with 99.47%, followed by Plus (99.22%) and Orange (98.82%). T-Mobile lagged significantly with only 89.20%, indicating potential reliability issues.

The TWAMP Interactivity Score, reflecting the overall quality of network responsiveness, was highest for Play (69), suggesting excellent real-time performance. Plus also performed well (64), while T-Mobile (55) and Orange (47) fell behind.

		KPI NR/FreeMode Data - TWAMP
Mierzony parametr	Orange	T-Mobile	Play	Plus
TWAMP Success Rate (%)	98,82%	89,20%	99,47%	99,22%
TWAMP Interactivity Score	47	55	69	64

KPI NR/FreeMode Data – Streaming

The Streaming Success Rate, i.e., the share of successful 4K stream initiations, was highest for Play (98.09%), followed by Orange (96.88%) and T-Mobile (96.30%). Plus had the lowest success rate at 87.69%, possibly due to bandwidth or stability issues in its 5G network during ultra-high-definition streaming.

Regarding video playback quality, as measured by VSQI Session MOS, Orange led with a score of 4.25, followed by T-Mobile (4.20), Play (4.14), and Plus (4.00).

The VSQI Session MOS < 3.8 metric revealed the percentage of poor-quality streaming sessions. Orange had the lowest share (12.56%), while Plus had the highest (20.72%). Play (15.46%) and T-Mobile (14.35%) fell in between.

		KPI NR/FreeMode Data - Streaming
Measured parameter	Orange	T-Mobile	Play	Plus
Streaming Success Rate (%)	96,88 %	96,30 %	98,09 %	87,69 %
VSQI Session MOS	4,25	4,20	4,14	4,00
VSQI Session MOS < 3.8 (%)	12,56 %	14,35 %	15,46 %	20,72 %

Photo by Vitaliy Gavrushchenko on Unsplash