Tech review: A look back at the week's headlines

Google has announced a version of its Android operating system designed for wearable devices.

Sony has unveiled its own virtual reality headset which will work with the PlayStation 4. The head-mounted display - known as Project Morpheus - has a 1080p resolution and a 90 degree field of view.

Facebook is developing a programme that can recognise a face before it has been tagged. It is claimed that DeepFace can recognise whether two photographs are the same person with a 97% accuracy rate.

BBC Click's Dan Simmons has details of these and other technology stories of the week.

Watch more clips on the Click website. If you are in the UK you can watch the whole programme on BBC iPlayer.