In the latest speed tests conducted by Ookla, Three Mobile emerged as the top performer among the major mobile providers in the UK. Offering an average download speed of 214Mbps, Three outpaced its competitors by a significant margin, making it a favorable choice for users seeking fast streaming capabilities on the go. This speed is notably faster than the average fixed-line broadband speed in the UK.
Vodafone secured the second position, followed by EE in third place, while O2 ranked at the bottom for delivering the slowest speeds across all categories. Ookla confirmed Three as the Fastest 5G Network in the United Kingdom for Q3–Q4 2025, based on Speed Score calculations that consider network throughput, responsiveness, and latency metrics.
The Ookla results indicated the following speed scores:
– Three: 53.46 (Overall Speed Score)
– Vodafone: 43.05
– EE: 36.73
– O2: 30.70
Median download speeds were recorded as follows:
– Three: 214Mbps
– Vodafone: 129.78Mbps
– EE: 97Mbps
– O2: 78.92Mbps
Median upload speeds were as follows:
– Three: 13.8Mbps
– Vodafone: 10.78Mbps
– EE: 10.96Mbps
– O2: 8.28Mbps
While these results showcase Three’s dominance in speed performance, it is important to note that mobile network testing can be challenging due to varying conditions and user movements. Despite these challenges, Three’s merger with Vodafone has the potential to further enhance network performance. The combined efforts aim to establish the UK’s leading mobile network through a substantial £11 billion investment.
The integration of the two networks using “Multi-Operator Core Network” technology post-merger allows seamless connectivity between Vodafone and Three customers without additional charges. This initiative is expected to improve coverage and enhance performance nationwide.