Brits searching the shops for a mobile broadband deal should think carefully before plumping for a deal offering a 'free' laptop.

That is according to Broadband Genie, which has pointed out the length of the contracts usually attached to such offers.

The broadband news provider has highlighted the limited choice of devices, as well as the possibility that a package could turn out to be poor value by the end of a 24-month subscription.

Broadband Genie editor, Chris Marling, explained: "Many people are buying mobile broadband for the first time and getting their first laptop, perhaps thinking it is free of charge.

"These deals can sound great on paper, but in truth the choices are very limited, the contracts long and consumers may get more value from buying a laptop and dongle separately."

Students tempted by laptop broadband offers have been advised by Broadband Genie to consider buying a machine with cash up front from their loans in order to save money in the long-run.