Philips PUS8079 vs Sony X75WL

The maximum brightness in content with a wide tonal range at 202 nits is extremely low and practically prevents watching movies and series on streaming platforms in the highest quality. It's worth mentioning that in this case, using the HDR format equipped with dynamic metadata won't help either. Why won't it help? Because the only such format implemented in the television is HDR10+, which is extremely unpopular, and films recorded in this format are scarce. It’s also worth noting that PUS8079 uses WLED backlighting, which unfortunately is not the best solution, resulting in coverage of only 80% of the wide DCI-P3 colour gamut. The effect of this reality is significantly less intense colours in HDR content.

The luminance chart for the X75WL Sony television showed a maximum value of 350 nits, which unfortunately is not an impressive result. The television does not surprise with its brightness, and all the HDR scenes we tested lacked depth and the appropriate lighting effect that should accompany HDR content. Additionally, the tragic coverage of the DCI-P3 colour palette makes it difficult for the television to reproduce rich colours, which significantly affects the overall viewing experience of HDR content. The lack of adequate brightness and poor colour coverage means that HDR effects are very limited in this model.

The best factory mode in terms of colour reproduction and fidelity to the director's vision was "Film". While it was the best of the predefined modes, it still had significant discrepancies between what the filmmaker wanted to convey and what the tested television displayed. In both SDR and HDR materials (though to a lesser extent in the latter), the white balance, which is the most fundamental element responsible for image purity, turned out to be somewhat of a repeat of the vibrant mode, with a blue tint reminiscent of what you see in retail displays. Moving directly to the SDR materials and what affects contrast, namely gamma, we see it being severely reduced. This leads to cutting off already minimal contrast resources and brightening the entire image. In the EOTF curve, responsible for the increase in brightness pace in HDR materials, we instead see a strong drop below the reference line, which, given the limited light output of the television, significantly impacted the perception of those contents, which were even more dimmed. We won’t separate the quality assessments of the colours themselves since, in both cases, they achieved astronomical deltaE values, being simply completely different from what they should be.

Colour reproduction tests for the model Sony X75WL are conducted in film mode, which offers the best picture settings but also has its flaws. The biggest issue with the X75WL Sony is the white balance – for both HD and 4K HDR content – which is characterised by a dominance of blue. As a result, the entire image feels too cool. The colour checker confirms these errors, showing that colours lean towards cooler shades. Regarding brightness characteristics, the contrast gamma is at quite a decent level; however, the same cannot be said for the EOTF curve. There are significant issues with maintaining the appropriate brightness – the image is either too bright or too dim, which affects the visual perception of the content.

Luckily, Philips implements advanced image correction tools in all of its TVs. SDR content has benefited the most here, and the huge deltaE errors have been significantly corrected, with both white balance and gamma being substantially reworked. While we can't say it's reference-quality image, it's definitely better, and you can watch a movie or series without causing a headache, especially for your eyes. Naturally, HDR materials, due to the very low luminance of the TV, could not be corrected to the same high degree as those with a standard colour palette, but we managed to roughly straighten out the EOTF curve and the white balance. Unfortunately, that was all we could squeeze out of our unit, although it's worth noting that each unit is different and has entirely different errors, whether minor or major.

X75WL Sony is one of those cases where image calibration may not be heavily spectacular, but it provides a very good improvement in colour perception. The white balance, both for HD and 4K materials, has been significantly improved – we no longer have a strong dominance of cooler shades. The gamma curve also appears more stable, which translates to better image quality. However, the biggest issue remains the EOTF curve, which is responsible for brightness in 4K materials. Due to the technological limitations of the television (IPS panel and lack of local dimming technology), it's hard to talk about significant improvement, as we can't squeeze more out of this model. Despite these limitations, the tonality of the image has been significantly improved.

We will return once again to the issue of tonal transitions, but in the context of overall image quality improvement. As we can observe in the photo on the left, the gradation enhancement feature works brilliantly. Furthermore, it offers several settings, and each of them, even the lowest, provides a beneficial effect, and, what’s more, does not soften the film grain effect. We will repeat once again that this feature is the biggest advantage of the tested television.

Secondly, we will look at image scaling. Here, the tested television performed worse. We can notice, above all, the strongly jagged fine details and the characteristic white glow around figures. We must not forget about the significant artificial sharpening of the image.

In the case of low-quality tonal transitions, the Sony X75WL television performs poorly. The lack of any feature to improve tonal transitions results in noticeable imperfections in colour gradation. However, it can be noted that the digital processing is quite good – the image is displayed without overscan, and the overall presentation is relatively good thanks to the added slight sharpness, which some users may appreciate.

This paragraph, unlike the others, will be extremely short. The reason for this situation is the lack of implementation of even the most basic motion smoothing function, which was to be expected given the price of the device. We also note that we are dealing with a VA panel, whose sharpness will not be the best under the sun. This type of panel is mainly associated with high contrast, which goes hand in hand with a relatively slow response time, as we can clearly read from the panel analysis results. As you can see, from the images captured in quick motion, the picture is blurred, typical for this type of panel. Although it may not be the ideal option, it can conditionally be used for watching sports, although one must keep in mind the less than optimal sharpness in motion. It's worth mentioning that movies will exhibit stuttering, as the television does not have any, not even the simplest, motion smoother.

The X75WL Sony television features a 60 Hz panel, making it more suitable for watching movies than for fast-paced gaming. This model includes a motion smoother called Motionflow, which allows the user to adjust the picture on a 10-point scale. Smoothness adds intermediate frames, thus increasing motion fluidity, and the image becomes more theatrical while minimising the judder effect. Clarity reduces motion blur, which is especially useful during fast-paced scenes, such as sports or dynamic action in films. With this feature, the user can tailor the fluidity and sharpness of motion to their own preferences.

Philips PUS8079 offers only the most basic support for gaming in the form of ALLM, VRR, and Game Bar. The most important information is that thanks to the implementation of the feature responsible for dynamic refresh rate adjustment, the image is actually quite smooth for this price range and does not 'tear' the image.

A slightly greater nod towards gamers is the introduction of the Game Bar, allowing for settings adjustments 'on the fly'. This means we won’t have to exit the game to make any changes to the image. Importantly, it hasn’t been stripped of options known from higher models. We can find features such as shadow enhancement for better visibility in shadows and a colour filter for players with visual impairments.

X75WL is not the best TV for gamers. It only has the ALLM (Auto Low Latency Mode) feature and a basic Game Bar, which are not sufficient to satisfy more demanding users. In this price range, one would expect support for features such as VRR or 120 Hz refresh rates – although in FULLHD, which are already standard – unfortunately, they are lacking here. This is a big downside for Sony, as the competition offers much more for gamers in a similar budget.