Gadgetory

how many pixels do you need in a smartphone display Sony thinks there may be room for a few more its unveiled this it's the xperia z5 premium a phone with a 4k display let's take a look now it's definitely the headline feature so let's talk a little bit about that 4k display so this is a 5.5 inch panel the precise pixel resolution is 3/8 40 by 2 160 which is the same resolution that you'd get on a big 4k television so as well as having an insane number of pixels sony says this phone will actually upscale video to 4k now upscaling doesn't always look amazing so we'll be interested to see exactly how good that upscale 4k content really looks packing 106 pixels per inch the detail on this screen is absolutely immense but the big question is can you really tell the difference between this and a regular phone I would caution that personally I can't see a huge amount of difference just here but if you do have to have the highest resolution screen the most pixels available well Sony's made this phone just for you now if you do go for this phone one thing you'll be battling is that there isn't a whole load of 4k stuff to watch at the moment the technology is still reasonably new one nice concession however is as well as 32 gigabytes of onboard memory sony says that this thing will take up to 200 gigabytes of expandable storage so there's plenty of space if you do have those bigger 4k movies or TV shows this phone doesn't just do 4k of course it's a fully featured smartphone so you have a 23 megapixel camera on the back which sony says has the fastest autofocus of any phone it's also waterproof and despite that 4k display sony says you can expect up to 2 days of battery life that's quite a claim and we look forward to putting that to the test in the full review the design doesn't stray far from what Sony's done in the past this phone comes in a number of colors and as you can see this one has a very very reflective back which is useful if you need to just touch up your appearance on the go so is 4k the future of smartphone displays or is it just a little bit pointless we want to know what you think so let us know and check out senior comm for so much more