Hello. XZ premium is the Best sony flagship to date. Let's take a look at XZ premium 4k display ...
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Panel:ips LCD
Matrix:RGB
Density:807 ppi
Size:5.5"
Resolution:2160*3840 pixel
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Black:0.463 cd/m2
White:573 cd/m2 (max brightness)
Contrast ratio:1:1238
Sunlight contrast ratio: 2.877
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The maximum brightness of the screen (573nits) turned out quite in line with what we got from the Xperia Z5 Premium (566nits). The level of blacks is deeper, though, which works out to a much better contrast ratio of 1238:1, as opposed to the Z5's 963:1.
In terms of sunlight legibility, the XZ Premium brings improvements over the Z5 Premium yet again. Both get decent scores, and while there is still a lot of room for improvement, the XZ Premium is better suited for use outdoors. The relatively high reflectivity of both screens limits their practicality in this respect
The Sony Xperia XZ Premium does not only improve the 4K display in terms of contrast and HDR video support, but it also comes with an sRGB color mode. The feature caters to professionals who would need accurate color reproduction and it's not turned on by default. The sRGB mode scored an average DeltaE of 4.9 in our color reproduction test, which is decent but not ideal. Even though the screen indeed complied to the sRGB color space (unlike the regular mode), there is a noticeable bluish tint in the white and gray hues.
The Normal display mode exceeds the sRGB color space and even though it produced more juicy colors, it still provided an average DeltaE of 4.6, which is better than the sRGB mode. The whites and grays still have a noticeable bluish tint though.
There is also a Vivid screen mode, which would over-saturate pretty much every color.
Previously, the Triluminos screen enhancement only worked in the Albums and Movies app but on the Xperia XZ Premium, it's also applicable to the homescreen and 3rd party apps. You can't turn it on or off, it's a built-in enhancement, which is part of the Normal screen mode.
Sony additionally offers the X-reality for Mobile engine, which only works on videos and makes them perceivably sharper by improving clarity on the fly as the video plays back on the phone. This feature, however, you can toggle either on or off.
