Nokia hails 'revolution in smartphone imaging'

Amongst the raft of new phone releases at the Mobile World Congress in Barcelona, Nokia has unveiled what it is calling a "revolution in smartphone imaging".

The Nokia 808 Pureview houses a huge 41 megapixel camera.

However, the phone uses the Symbian operating system, a platform Nokia is abandoning in favour of Windows Phone.

The BBC's Technology Correspondent Rory Cellan-Jones takes a look at it.