Is there a point where a tablet gets too thin? In this case, the XPERIA Z4 tablet from Sony is certainly on the go. It is the company's thinnest tablet to date, a fraction of a millimeter thinner than the already barely existing Z2 tablet and a handful of grams lighter. Indeed, it is hard to believe that a 10-inch tablet can weigh so little. At 393 g, it feels more like a plastic placemat than an innovative device.
Design:
Given the apparent effort Sony has made on the Z4 tablet, it's a shame it did not work on the design anymore. The plain black back wall is not necessarily screaming and even the reasonably priced and rattling Bluetooth keyboard included in the package does not help with the overall look. The design is somewhat enhanced by Sony's hallmarks – the silver circular power button and volume controls on the left edge give the model a touch of class – but the overall look remains from a product that needs some love and attention. In addition to an iPad Air 2 it looks easy.
Nevertheless, elements impress, in particular the low weight and longevity. The tablet alone is 44 grams lighter than the smallest tablet Apple has ever built (the iPad Air 2). The included keyboard increases the weight to only 760 g. This is more than 100 grams lighter than Apple's 12-inch MacBook. Like all other XPERIA tablets and smartphones, the Z4 tablet is both water and dust resistant. This is less favorable for a tablet than for a phone (to be honest, who takes his tablet in a rain shower?), But IP65 / 68 protection should protect it from accidental contact with a hot cup of coffee. Even better, this year, sealing Sony does not come with the usual irritation that you have to break a hatch every time you want to charge your device. Sony has removed the cover of the micro USB socket without affecting the water resistance.
Screen and speakers:
Full HD is so old these days that the next upgrade of the Z4 tablet should not be a shock. For a 1080p screen on the Z2 tablet, the new model features a high-resolution panel with a resolution of 2,560 x 1,600 and a pixel density of 299 ppi. I'm still not convinced that small screens require such high resolutions as they can affect power consumption and performance, but I cannot criticize the quality of the Z4 Tablet's display.
It uses IPS technology, so angles are exceptional and the first impression of a bright and colorful image is that captivates with details. The figures stack up impressively well. One colorimeter tests show a maximum brightness of 464 cd / m2, a 963: 1 contrast ratio, and good color accuracy with only a slight purple tinge flashing the blue of the XPERIA Z4 tablet, Accompanied by two front speakers, which are commendably clear. Although slightly down compared to the iPad Air 2, its position – embedded in the screen border and facing forward – means that you are less likely to cover it with your hands.
Performance:
With so many pixels you can work with, you would expect the internals to be upgraded, and that's shown. Sony chose one of Qualcomm's premier Snapdragon 810 SoCs with an Adreno 430 GPU and 3GB of RAM and 32GB of eMMC storage. The former is a 64-bit octa-core part, and as with all such processors we've seen so far, it's made up of a pair of quad-core CPUs. The more powerful of them (based on the ARM Cortex-A57) operates at 2 GHz and performs demanding tasks, while the less powerful 1.5 GHz Cortex-A53 part performs daily tasks, saving power and, hopefully, battery life ,
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