Sony unveils the waterproof phone you can use in the bath - and it will even keep working if you drop it down the toilet

It is the mobile phone you can use in the bath or shower without fear - and can even survive being dropped down the toilet.

Sony has unveiled its latest mobile phone - and hopes the waterproof design will help it take on the iPhone.

The Xperia Z was unveiled at the Consumer Electronic Show in Las Vegas.

Sony's Xperia Z handset can be dropped in water thanks to a special coating

XPERIA Z SPECS

• 5” Full HD 1080p Reality Display
• Snapdragon™ S4 Pro quad-core processor
• 13 megapixel fast-capture camera 
• 4G LTE
• Android operating system
• NFC chip

Sony says the handset, which has a 5in (12.7cm) screen, is capable of being submerged in water of up to one metre (3.3 ft) in depth for 30 minutes.

The firm says it can survive being dropped in a toilet, and if it gets dirty, can simply be washed under a tap.

Sony claims that about one in 10 people had dropped their phone down a toilet at some point, something this would protect against.

The trade-off is that handset's various ports, including the one for its headphones, all feature protective plastic covers that must be unclipped before they can be accessed.

The handset also has an NFC chip allowing owners to play back video on their TV simply by tapping the phone against it.

This chip could also be used as a credit card in the future, it is believed.

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