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The Sony Xperia Z Ultra is Sony's first smartphone/tablet hybrid and to make sure it stands out, Sony has given it some truly eye-catching specs including a blistering 2.2GHz quad-core processor.
Sony thinks it has what it takes though and with the Sony Xperia Z now proving to be the brand's best-selling smartphone ever, the company is looking to expand on its success.
The Xperia Z Ultra is thin, and we mean really thin. At 6.5mm it's barely able to fit a 3.5mm headphone jack on the side but yet remarkably it's not the thinnest smartphone with that acolade going to the Huawei Ascend P6.
To prevent this thinness from being a structural issue Sony has wrapped it in aluminium and glass keeping it light but still rigid, in fact it weighs in at only 212g which is impressive considering its size.
The Xperia Z Ultra is also built differently, unlike other large smartphones the Z Ultra is only as wide as a passport but still able to fit in a 6.4-inch Full HD display.
What you end up with however is something that feels very tall. Despite what Sony will tell you, this does not make it any easier to hold and no, you most certainly can't use it with one hand.
Running Android 4.2.2 Jelly Bean with Sony's own UI skinned over the top, the Xperia Z Ultra is certainly a breeze to use, that frankly ridiculous Qualcomm Snapdragon 800 2.2GHz quad-core processor means there's absolutely no lag whatsoever.
Packing Sony's Triluminous and X-Reality technology the Xperia Z Ultra has one of the finest displays we've ever seen, with colours popping out of the screen.
If that wasn't enough Sony has also made the display hyper-sensitive which means you can use a stylus, pen or even a pencil. While we applaud this innovation we're struggling to see people getting ink all over their displays just because they can. We also couldn't find any dedicated software to accompany this feature, something that at the very least Samsung provided with its S-Pen apps.
On the back there's an 8MP camera capable of shooting 1080p Full-HD video, whilst on the front there's a 2MP camera for video-calling. Both seemed to work well although the 8MP did seem to struggle in low-light.
It also rather interestingly raises the question of when does one start to look silly when taking a picture, with an iPad it's a certainty but with 'Phablets' the line is rather more vague. We'd be inclined to lean on the side of it being a last resort.
As mentioned earlier the Sony Xperia Z Ultra is one of the first smartphones to boast the new Snapdragon 800 processor, in 2.2GHz quad-core form it is arguably one of the fastest smartphones available.
All that power is then accompanied by 2GB of RAM and 16GB of internal storage along with MicroSD support letting you expand up to a substantial 64GB.
While the customer base seems to confirm that people do indeed want giant phones we're more of the view that if you do buy one then it has to at least feel as though it's offering something that a smaller phone can't. Nowadays just having a bigger screen won't cut it.
While the Xperia Z Ultra should be praised for being a pioneer by offering such a high-resolution screen in a waterproof package you never really feel like it's actually aimed at solving any questions. Whereas the Note 2 offers a stylus and family of dedicated apps this really does just feel like a giant phone, creating more problems than it does solve them. That said this is only based on spending a short hands-on with the Z Ultra so hang tight for the full review to see if we end up falling in love with its titanic charms.
Sony Xperia Z Ultra release date: Q3 2013
Sony Xperia Z Ultra price: TBC