EE has announced it is to double the speed of its 4G internet service to over 20Mbps in a number of UK cities.
Amongst those cities set to benefit from the improved network are London, Birmingham, Manchester, Bristol, Leeds, Liverpool, Sheffield, Cardiff, Edinburgh and Glasgow.
The firm's 4G network already offers average speeds of between 8Mbps and 12Mbps in over 50 UK cities, but today's new locations will experience the new cap of over 20Mbps.
However, analysts have issued a warning to consumers that EE's latest rollout could see 4G data bills soar.
As devices are increasingly granted access to higher internet speeds, users are more likely to consumer larger quantities of content such as HD video, music streaming and data-heavy sat nav services, which could result in expensive data bills.