MWC 2017: Sony launches slow-mo Xperia XZ Premium phone39103831

Sony's unveiled its new handset at the Mobile World Congress trade show in Barcelona.

It can film at four times the rate of the best Apple and Samsung rivals - although Sony usually sells its tech to competitors later.

BBC Click's Spencer Kelly checks it out.

This video has been optimised for mobile viewing on the BBC News app. The BBC News app is available from the Apple App Store for iPhone and Google Play Store for Android.