Alphr | Alan Martin

If only Sony hadn't wasted its money on a 4K white elephant, eh? It might have able to undercut all its opponents and provide a genuine alternative to the Samsung Galaxy S8 at this end of the market. Maybe next time, guys. But seriously: drop 4K, at least until VR developers consider it an option, okay?

S21

The Sony Xperia XZ Premium is a premium-spec version of the XZ. It's a beauty for sure, and not over-priced, but may be too big for some users.

Recombu | Alex Todd

If you're already a Sony fan looking for a new high-end blower then there's no real way in which the XZ Premium can disappoint and if not, Sony has ensured that there are countless reasons why the XZ Premium is the phone to go for.

Australian PC World | Nick Ross

Sony's (big) new flagship has no real weak points. It's a crowded market but this is one of the best all-rounders. But there's virtually no 4K content available for the 4K screen...It's not an outright winner, but it's another great all-rounder with no real weak point which makes it even more attractive if you're bothered by any of the failings and foibles of the competition.

Android Central | Andrew Martonik

At a lower price, in a market where it's okay to miss a couple of features but still provide a good value in order to sell, that would be manageable. But at its price, people expect to get just about everything - and even though the Xperia XZ Premium gets so close, it's missing just enough that it's instead an exceptionally tough sell in the U.S.

The Inquirer | Basil Kronfli

Sony's latest flagship defies expectations with its amazing screen and video skills. The XZ Premium manages to defy my expectations and be a brilliant, unique flagship.

TechRadar | John McCann

The Sony Xperia XZ Premium has everything you want when paying top dollar for a phone, with its 4K display and slow motion camera two standout party pieces. It will please Sony fans around the world.

NotebookCheck | Florian Wimmer

As it is, the device is simply one of many high-end smartphones that has convincing technical features. Do not misunderstand us, in many respects the Sony Xperia XZ Premium is a good smartphone with a fantastic HDR screen. But the feeling that Sony might have forgotten about the basics among all this technological progress remains.

phoneArena | Damian M.

The Xperia XZ Premium is a very good phone. We can't really complain from lack of power, design or camera performance. If you're still not ready to give up the 9:16 aspect ratio, and you're looking for a solid device to invest in, the Sony Xperia XZ Premium can and should be one to consider seriously.

Android Authority | Joshua Vergara

The Sony Xperia XZ Premium goes all in with features that the company dabbled in with recent offerings, making it a worthy consideration for anyone that is willing to overlook the lack of a fingerprint reader and basically non-existent carrier availability in the States.

GadgetMatch | Marvin Velasco

For users heavily reliant on their smartphone to get things done, the XZ Premium is an excellent choice.

Gadgets Now | Avani Bagga

...a beautiful design and a superb display. The performance is simply excellent and it comes with features like slow motion videos. Over that, it's a visual treat to watch 4K content on it. If these are the features that you are looking for in a device, then you should go for it. However, in case you want to look at other options in the same price bracket, then you might want to check out Samsung Galaxy S8.

AVForums | David Phelan

This is a powerful, great-looking phone and is a real performer into the bargain. The Sony Xperia XZ Premium has a lot to recommend it.

news.com.au | Matthew Dunn

All in all, I am a massive fan of what Sony has done with the XZ Premium, much like I was a fan of its predecessor. While I still think Samsung's S8 is the best phone currently on the market, I would have no problem recommending this device for anyone looking to mix things up.

IT PRO | Adam Shepherd

The Sony Xperia XZ Premium is the best 4K smartphone out there. It's still more than a little pointless, of course, but it's hard to deny that it looks very good.

ZDNet | Sandra Vogel

Sony has packed the Xperia XZ Premium with features, and its general performance is exemplary. Xperia devotees may well be drawn to the XZ Premium, but with pricing on a par with other flagship handsets it will be worth careful research before taking the plunge, including looking further afield to the likes of the new, more affordable, OnePlus 5.

What Mobile | Thomas Welburn

If Sony had just modernised the design a little bit and focused on refining some of the features, this could've been the number one handset out there. That said, it's still an excellent flagship which is up there with the best and a solid all-rounder.

NDTV Gadgets | Roydon Cerejo

With the heating issues that plagued its predecessors out of the way, Sony's newest flagship is a legitimate competitor to the Samsung Galaxy S8 and Galaxy S8+. At the time of writing this review, the Sony Xperia XZ Premium is a bit on the higher pricing side considering that there's only a relatively small spec bump compared to the Xperia XZs.

Android Headlines | Nick Sutrich

Sony Mobile's best phone in years, the Xperia XZ Premium is a real stunner. Still it's a solid phone that's the best Sony has made in years, and one that handily competes on nearly every level in 2017.

Pocket-lint | Britta O'Boyle

The Sony Xperia XZ Premium is every bit the flagship smartphone in terms of spec, but it doesn't bring the same wow factor as the likes of the Samsung Galaxy S8 or LG G6.

Stuff | Andrew Williams

Eye-popping specs alone aren't quite enough to lift Sony's latest flagship into the top tier. The Xperia XZ Premium does a few things very well, but its average camera and design keep it behind the best.

Expert Reviews | David Court

I like the Sony Xperia XZ Premium. It's a highly responsive phone – as you'd expect from any 2017 flagship – and while I'm not a huge fan of the half-inch top/bottom bezel, other than that, the design is solid.

AndroidPit | Shu On Kwok

But unfortunately the Sony Xperia XZ Premium is in no regard noticeably better than the Samsung Galaxy S8, LG G6 or even the HTC U11.

Tom's Guide | Caitlin McGarry

The Xperia XZ Premium's 4K display and powerful performance are truly extraordinary, but so-so battery life and a dated design make it an also-ran.

PC Mag | Ajay Kumar

The Sony Xperia XZ Premium is a powerful unlocked phone that combines a vivid 4K display with the latest Snapdragon processor and strong audio capabilities.

T3 | Spencer Hart

It's a blazing fast phone, with an impressive number of interesting features. But its massive bezels can't be ignored, and its rivals offer more attractive propersitions.

Wired UK | Andrew Williams

Sony Xperia XZ Premium has interesting features like a 4K screen and slow motion video, but it still feels behind the times.

The Mirror | Jeff Parsons

An amazing camera let down by awkward design. Sony has shown it still has the technical chops to make a killer phone, it just needs to change its design strategy and give us something a little bit more ergonomic.

Forbes | Ben Sin

Sony makes niche phones that doesn't cater to the mainstream. The XZ Premium will have its fans (collectors, design geeks, and diehard Sony loyalists perhaps), but most normal people will see the price tag and either give that money to Apple or Samsung, or go for something cheaper like the OnePlus 5.

Trusted Reviews | Richard Easton

The XZ Premium doesn't lack for performance but its mediocre design and limited super-slow-motion video make it difficult to recommend over more impressive flagship rivals.

The Verge | Vlad Savov

No matter how shiny you polish it up, this phone doesn't live up to its price and epithet. On paper, it's a behemoth, but in practice, it's too much like the rest of the mainstream Android flagship pack.