Video is a bit of a disaster on the Sony Xperia U. Despite being technically rated as 720p capable, the sensor's simply not up to the job.

Sony Xperia U review

There's a huge amount of blockiness and digital mess on our clips, with some darker areas of the images resembling nothing more than a few rough, black squares.

In decent light when nothing's moving it does a slightly better job, but you won't really want to be recording too many of life's magic moments with the Sony Xperia U.

Sony Xperia U review