Display

While I never commented publicly on my experiences with the Sony Xperia Z3v, one of my major concerns with that phone was that the color calibration was frankly shocking for such an expensive phone, and in general the display just wasn’t up to par with expectation. In the time since the Xperia Z3v, the smartphone market has only had more competition in this regard, so even an upper mid-range phone like the Xperia X really has very little margin for error here.

Of course, for those that aren’t familiar with display testing, this may seem a bit out of expectation as in general most reviews will generally state that the Xperia phones have had generally acceptable or excellent displays, but our testing here attempts to avoid relying upon subjective color preferences and rather holds all mobile displays to the same industry-wide standard for content creation on the web. To do this, we use SpectraCal’s CalMAN 5 along with X-Rite’s i1pro2 spectrophotometer and i1Display Pro for accurate contrast, peak luminance, and color readings of all displays against the sRGB gamut with power 2.2 gamma at 200 nits.

Display - Max Brightness

Display - Black Levels

Display - Contrast Ratio

As per usual for our display testing, we can start with our luminance tests, which paint the Xperia X in a fairly positive light. The 5”, 1080p display means that Sony can dedicate more area to actual light transmission rather than control circuitry. The bright backlight and decently high contrast is impressive here, and is actually a great improvement over the rather dim display that I saw on the Z3v. The contrast ratio isn’t anything amazing next to an AMOLED display, but for an LCD it’s quite competitive. Viewing angles subjectively are also quite good with no real visible color shifting other than the purple tint on blacks that occurs due to the dual-domain pixels. The lamination is also executed well on the review unit as the lack of color shifting and good viewing angles makes it look like the display is almost painted onto the glass, although the brightness shifting inherent in LCD will destroy this illusion to some extent.

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Modified Color Balance

Display - White Point

Display - Grayscale Accuracy

Our next test is really where things start to go wrong to some extent, as the Xperia X out of the box simply doesn’t target grayscale well as the hue just isn’t correct with a noticeable deficiency of green and some blue shifting. This can be resolved with the display settings, but in the case of the Xperia X you just get a generic “color balance” slider for each color primary, and the slider is completely arbitrary. Seeing as how most people don’t have access to a few thousand dollars in display testing equipment, I don’t think this is a valid solution for display calibration the same way that Samsung’s Basic mode or HTC’s sRGB mode is. The error here is really almost unacceptable, and it’s obvious that just correcting this green deficiency is enough to make the average error almost imperceivable, so this is concerning to see. My unit could resolve this issue by setting green to 40, but I don’t have nearly enough sample points to determine whether this is reliable.

Display - Saturation Accuracy

Moving on to our saturations test, it’s evident that Sony is targeting either a different gamut from sRGB or just using the native gamut of the display here as there’s fairly significant color error across the board. This occurs even with X-Reality and Super Vivid mode disabled, so I suspect the situation is even worse with either of those enabled. This wider gamut is quite noticeable as everything looks rather neon compared to something like the Galaxy S7 or HTC 10 with their calibrated modes. Basically the only color that is represented accurately here is yellow, and everything else suffers from significant oversaturation. Thankfully, the saturation curve is linear here so things aren’t as bad as they might be, but these kinds of things are increasingly hard to justify when Xiaomi is shipping excellently calibrated displays in phones that cost hundreds of dollars less.

Display - GMB Accuracy

In the GMB ColorChecker test, the same sort of pattern plays out. Due to the hue error in grayscale and incorrect gamut target, color accuracy just isn’t up to par with what we see in other smartphones. As a result, anything that requires color accuracy will struggle here, as the display misses gamut and grayscale targets by a noticeable margin. This alone is enough to make me question whether the Xperia X can justify the asking price, although whether color calibration matters is a subjective matter to some extent.

Introduction and Design Preliminary Battery Life, Storage Performance, and Initial Thoughts
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  • RichieHH - Tuesday, May 31, 2016 - link

    You're joking, right? The Z3 was top of the heap in many ways. I still use mine. The Z5 is also a superb phone. Reply
  • Eden-K121D - Tuesday, May 31, 2016 - link

    Most OEM's except for Apple or Samsung cut corners on storage , build Quality or industrial design or all of those Reply
  • arnoudw - Tuesday, May 31, 2016 - link

    "Of course, for those that aren’t familiar with display testing, this may seem a bit out of expectation as in general most reviews will generally state that the Xperia phones have had generally acceptable or excellent displays, but our testing here attempts to avoid relying upon subjective color preferences and rather holds all mobile displays to the same industry-wide standard for content creation on the web."

    I second this. I've done reviews of Sony phones on the largest Dutch website about technology, Tweakers, and howerver I've liked the battery life and feature set of Xperia smartphones of the last years a lot, the display has been a let down.
    Up until the Xperia Z3 it looked like Sony didn't use ips panels at all, resulting in horrible contrast when viewed under even a small angle. And the color calibration has been consistently horrible (for example, http://tweakers.net/reviews/4228/5/sony-xperia-z5-...

    This was the case on all high end Xperia smartphones without exception. All. Of. Them. The camera is the same thing. Sony is making kick ass camera sensors which power all high end phones, but camera samples from Xperia's are always noisy. It's improving, but it's not nowhere near the competition even now.

    It's a shame, because we all know Sony could do so much better, but for some reason have been failing for years.
    Reply
  • BedfordTim - Tuesday, May 31, 2016 - link

    If it is does well a plastic body removes the need for a case and significantly reduces the final size of a phone so I would consider it a positive rather than negative. Reply
  • BedfordTim - Tuesday, May 31, 2016 - link

    Sorry no edit function. I meant "If it is done well" Reply
  • Spectrophobic - Tuesday, May 31, 2016 - link

    I was excited when they announced the X Performance, being SD820 and 1080p. But Sony still can't get screens right. Oh well...

    Looking forward to the OnePlus 3. Or perhaps a Nexus 5X refresh with a 820?
    Reply
  • beginner99 - Tuesday, May 31, 2016 - link

    I like the screen size but it's larger and heavier than phones with similar screens like Galaxy S7 while also having a smaller battery. And I hate on-screen buttons. Look at that last pic. bottom 20% of phone is wasted space with on-screen buttons and bezel. With the galaxy S7 (or S6 or Mi5) you get more screen real estate at lower weight and with a larger battery. Reply
  • techcrazy - Tuesday, May 31, 2016 - link

    While benchmarking is nice way to measure a phone's performance. I would like to learn how it performs in the real world scenario. I saw couple of videos where I saw Xperia X outperform HTC 10 and LG G5 in opening apps. Joshua please focus on the real world performs as well. Thanks in advance. Reply
  • ikjadoon - Tuesday, May 31, 2016 - link

    Yes. I understand how it is "preliminary", but I think it's quite weird to see a focus on sequential performance. When is that a bottleneck in an Android phone? I honestly don't know. Is random 4 KB access still important in day-to-day use? Is that Windows only? What queue depths are important?

    In a Windows SSD environment, I understand: in real-world use, every SSD under consumer applications will perform nearly identically. The only noticeable differentiator is with large file transfers: TLC vs TLC w/ caching vs MLC vs SLC (and then PCIe vs SATA protocol limitations on top of all that).

    But, at QD1-4, pretty much every SSD gives similar enough numbers where normal users won't notice a difference.

    ---

    But, with Android? I've absolutely no idea. Is random performance more or less important than sequential?
    Reply
  • JoshHo - Tuesday, May 31, 2016 - link

    The issue here is mostly that AndroBench 3.6 and 4.0 random read/write results aren't comparable so we have to retest these things. Reply

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