Sony Xperia Z Ultra

The Xperia Z’s phablet-sized relative has a 6.3-inch, full-HD screen and an inherited disregard for the perils of water – it’s encased in waterproof aluminium and glass that lets it dive up to 1.5m. Protected inside sits a 2.2GHz quadcore processor and there’s an eight-meg camera on the rear. It may be big, but at just 212g it won’t sink like a stone. And at just 6.6mm thick it’s competing with Huawei’s Ascend P6 (p30) for the title of world’s slimmest smartphone, too.

Price: £TBC | Sony.co.uk | Out Autumn