It's going to be hard not to overuse the word 'big' here, because the Xperia Z Ultra is very, very big. It's all thanks to its borderline tablet-sized 6.4in 1080p screen, and holding the Xperia Z Ultra feels like cradling something in between the Xperia Z and Xperia Tablet Z. The iPhone 5 looks like a child's plaything next to it.

Its extremely thin 6.4mm aluminium and glass body actually feels quite comfortable in the hand, partly due to its svelteness, and partly due to the quality of materials used.

There's no creaking or flexing to be found, and the build quality of its Xperia brothers is definitely present. Holding the Xperia Z Ultra side-on makes us feel like slicing up a few pieces of well-thrown fruit, but it'd be a shame to dirty such a nice looking device.

The Xperia Z Ultra features the same waterproof powers as its Xperia Z phone and tablet counterparts, which means it's harbouring cleverly hidden micro SIM, micro SD and micro USB ports, all of which are squirreled behind flaps in the surrounding brushed metal aluminium band.

There's also a magnetic charging port which can be used with an optional docking station to charge the handset as well as providing a comfortable angle for watching movies or turning the Xperia Z Ultra into a huge alarm clock. It's a nice feature we wish more manufacturers would include in their handset designs.