Mapping 4G speeds in London: A road test with EE's LTE network

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The slowest indoor speed test was performed at Canary Wharf and returned a result of just 5.86Mbps (pictured), whereas the fastest indoor speed test was carried out in Newington Green, and returned a speed just below 20Mbps.

Similarly, the fastest outdoor speed test was in Shepherd's Bush with a download speed of 17.3Mbps. The slowest outdoor test was once again in Canary Wharf and returned results of around 11Mbps.

Overall, from my day travelling round London using the service in different areas, one thing is clear: the speed is far more reliable, and far faster in most cases, than you could expect on a 3G service.

However, while the speeds observed were certainly ample for anything I wanted to do while on the go, there were no examples in the 30Mbps or even 40Mbps ranges - as I had observed at an earlier hands-on testing before the service went live.

For the record, an EE spokesman told me again on Wednesday that the speeds delivered by its 4G service were not capped or limited.

It is also interesting to observe that in many cases, the less densely populated areas (Newington Green and Clapham North) returned far better indoor speeds than busier locations. However, it's likely that as more people sign up to the service, the average speeds seen could well drop below the levels they're at now.