We've got all the
insights you need.
Plus the ones
you never knew
you needed.

Research blog

O2 Network Outage- What we know so far

Tutela collects mobile network connectivity and performance metrics from more than 2 million mobile devices in the UK running our software, allowing us to monitor mobile network quality in real-time....

Read More

Should we allow shared access to 5G spectrum?

There is currently a vigorous debate in the UK about whether shared access to 5G spectrum should be allowed. Much hinges on the expectation of how widely mobile operators might deploy. By examining...

Read More

UK: EE is still the fastest network, Three sees improvements

In our September 2018 report for the UK, EE remained on top, but all four carriers saw improvements in their 4G download speeds. Three achieved an average LTE download speed of over 10 Mbps, while...

Read More

Germany: Telekom and Vodafone lead speeds, O2 top latency

According to our latest results between June and August of this year, Telekom show best overall download speeds however Vodafone claim the lead in our results for 4G on both download and upload...

Read More

What we can learn from relative cell sizes

Crowdsourced measurements can reveal all sorts of interesting insights about networks, and one metric that's of interest to mobile operators is relative cell size - the coverage area each cell can...

Read More

The impact so far of Telefonica's £500M UK spectrum investment

O2 have invested heavily this year, spending over half a billion pounds on new spectrum in April and have announced plans to connect over 1,000 UK sites by the end of 2018. Tutela has been monitoring...

Read More

Germany: Telekom and Vodafone race to lead mobile speeds

Our results for the last quarter until July show Telekom performing best for download speeds whilst Vodafone lead upload across Germany. O2, who sit in third place for both, take our top spot for 4G...

Read More

UK: EE continue to lead real world download speeds as Vodafone top latency

With average download speeds of 21.36Mbps, EE continue to top our research findings from data collected in July. Vodafone follow in second place with average download speeds of 16.72Mbps across both...

Read More

Germany: Vodafone and Telekom lead speeds whilst O2 perform best for latency

Across both 4G and 3G, Telekom top our chart for fastest average download speeds with scores of 14.78Mbps, Vodafone lead our 4G only download speed tests with average speeds of 20.73Mbps, and O2 sit...

Read More

UK Mobile Experience - Who is better and where?

From London to Liverpool, and Bristol to Birmingham, each city in the UK is unique in its own way, but whether home to the Queen or the Beatles, the need to be connected is no longer a just a nice to...

Read More

United Kingdom: EE lead download speeds whilst O2 perform best for upload speeds in Scotland

Our latest mobile experience report for the UK puts EE at the top of our download speed chart across both 4G and 3G, with average speeds of 22.66Mbps. EE are planning on running the first live 5G...

Read More

Germany: Deutsche Telekom and Vodafone lead our speed tests

Deutsche Telekom lead our download speed tests for the last quarter up to April, with average download speeds across both 4G and 3G of 15.11Mbps. Telekom have began to lay the foundations for 5G...

Read More

EE leads download speeds and latency in the UK

Findings from our March Report Once again EE tops our download speed chart, averaging 22.55Mbps for a 2MB file transfer. Having recently completed the construction of its 90th brand new mass site in...

Read More