British mobile broadband users have been alerted to the potentially huge costs they could end up paying after downloading content abroad.

New research by Broadband Expert has weighed up the different mobile data charges incurred by users of each leading mobile broadband provider while abroad.

It was found that Orange charges as much as £6.32 per Mb for data usage outside the EU, with T-Mobile asking for £7.50 for the same amount.

Rob Webber, Broadband Expert's Commercial Director, commented: "Whilst we would like to see companies be more proactive in moving their customers away from unreasonable rates, Vodafone has come a long way in addressing this and is now by far the cheapest provider for those who want to access mobile broadband abroad."

The Vodafone offer referred to by Mr Webber provides a 50Mb daily download limit outside the EU for £9.99.