The only positive aspect of this color calibration is that HTC has managed to constrain the gamut of the display to sRGB, unlike the M8 which noticeably exceeded sRGB. As a result, the color accuracy will be noticeably different from a monitor that follows the sRGB standard. Colors like magenta are significantly skewed towards blue, yellow tends to skew towards green, and colors like blue and green have noticeable saturation compression. In order to get an idea for whether this is just a single point or a general trend, we can look at the saturation test which introduces multiple colors.Īs we can see, in the saturation test this excess of green and blue in colors is not an isolated case of white balance.
In practice, everything looks excessively cold and with a strange green tint to a lot of content, which really hurts the viewing experience. The next most notable issue seems to be related to CABC, as there’s a dramatic increase to gamma from 70% to 100% white. Although gamma is generally correct, the white balance ends up far too green and blue. Moving on to grayscale calibration, we can see a dramatic reduction in accuracy when compared to the M7 and M8. The brightness of the display could be higher, but it’s likely that at this point it makes more sense to target lower reflectance with improved coatings rather than driving brightness. In practice, this really does reduce the effective contrast of the display. It’s likely that this is related to the polarizers used, as the IPS glow effect is strongly angle-dependent.
Although the off-angle glow isn’t visibly different when shifting the display along the horizontal and vertical axes, anything in between dramatically decreases contrast as seen in the photos below. Outside of this basic test, I noticed that the display has worse viewing angles than the M7 and M8. Both have some level of content-adaptive backlight control, which means that static contrast is lower than the value that we’ve tested it for. In this regard, the M9 seems to effectively identical to the M8. Our first test is focused on some of the basic aspects of the display, namely brightness and contrast. In order to fully utilize this hardware, we use SpectraCal’s CalMAN 5 Ultimate with a custom workflow for mobile devices.
HTC ONE M9 NEW EGG NEW PRO
In order to do this, we use our usual test suite which includes X-Rite’s i1Pro2 for accurate color and brightness measurements, along with X-Rite’s i1Display Pro for accurate contrast measurements. As a result, in addition to judging simple characteristics such as brightness and contrast, we also test how well a display matches against the sRGB color standard with a gamma target of 2.2. Something as simple as taking a photo can be difficult with an inaccurate display, as white balance on a photo could easily appear to be incorrect for a scene even if it isn’t.
After all, if pink on one screen looks like magenta on another, this could easily result in a number of problems when sharing content. However, despite subjective preference we have to all have a common standard for color rendition. Color in general can be a subjective preference, as some prefer wide color gamuts and saturation compression to achieve a vivid look, but others prefer more muted and subtle colors. Something as simple as white point can divisive because some people prefer warmer colors, but others prefer a colder color balance. We can all agree that a display should get as bright as possible and that black pixels should be as dark as possible, but some characteristics are often subject to personal biases. However, defining what an amazing display is can often be quite difficult. By now, it generally goes without saying that a high end smartphone needs to have an amazing display.
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