Due to the great experience with the Experia XA Ultra, I chose to go with the XZ when my Ultra was left in a zip pocket of my pants through the washing machine. The XA Ultra was drowned and toast but the phone came out in great physical condition. It was actually still working until a power cycle.

Great Phone with Great Quality. I have this phone for a month and really enjoy using it. The best feature is the display and camera quality. The battery is also durable and get charged really quick ( 1 percent per minute). I'm a heavy mobile user and there is nothing in this phone to disappoint me.

Display; Camera; Fast response; Stylish

Nothing

I just love this phone! It is just perfect. Even tho I wanted the red colour one, the back of this one makes it like a mirror which it awesome!

The Sony Xperia XZ Premium is a handset jam-packed full of features, and from its impressive 4K display and huge power under the hood to an excellent camera and solid battery life it has all the core ingredients of a top smartphone.

4K display is stunning; Great camera; Solid battery life

Design isn't the most premium; Fiddly SIM tray; Lack of 4K content lessens screen's impact

The XZ Premium has a higher resolution than your TV, but can it beat the S8?

The best resolution we've seen on a smartphone; Unique design; Good camera,

4K smartphones are still fairly redundant; Screen-to-body ratio isn't good; Battery life is disappointing,

This is Sony's headline phone for 2017 and, as you'd expect, it comes with all the top specifications. Like Sony's previous flagship, the , there's a 5.5-inch screen with 4K resolution and HDR (with a caveat, mind), and a Snapdragon 835 processor that can give rival handsets such as the , and a run...

Flagship performance; High resolution display; Decent speakers

Dated design; Uncomfortable to hold; Slow-motion feature video is limited

The Sony Xperia XZ Premium is a good phone. It's powerful, well-made and has a high-end, impressive look that is often the kernel inside our desire to have a £650 phone when a £200 one would probably do the job just as well.

Bold look; smarter camera than last year; slow-motion video capture can be fun

Photo quality; 4K screen is a limited real-world benefit; bulkier than its Android rivals; unique features wanes rather quickly

Last year's flagship, the Xperia XZ , was a pretty premium device itself and it launched a new design language for the Sony phone range.

Powerful performance; 4K HDR screen; Attractive design; Great Build quality; Super-slo-mo is fun

Camera missing a few features

Sony Xperia XZ Premium: A great smartphone but it isn't as good as the Samsung Galaxy S8 and is now more expensive

Very fast performance; Doesn't smudge; despite glass front and back; Love that 960fps slow-mo funtion

Dated design; Sharp corners rip holes in your pockets

In a number of key areas, notably camera and screen specs, the Xperia XZ Premium beats the iPhone 7 Plus pretty comprehensively - at least on paper. Whether it will provide a better overall user experience, or can back up its specs with real-world performance, is another matter, and one we cannot...