Philips PUS8359 (IPS) vs Sharp GR8

The quality of the HDR effect on the Philips PUS8359/12 television is also not impressive. A brightness level of 280 nits is too low, resembling standard SDR more than true HDR, which is clearly evident on the five tested test cards. Additionally, the television does not impress in terms of colour gamut coverage – just 76% DCI-P3 is a result that can be considered poor, especially compared to other models in a similar price range.

Sharp GR8 in its promotional materials boasts of "very high brightness" at a level of 500 nits. Unfortunately, our tests showed that reality is somewhat different – the average luminance we were able to achieve was around 360 nits. This is rather an average result, especially in the context of the manufacturer's claims. Such brightness does not allow for a full enjoyment of HDR effects. The image is a bit sharper than in standard SDR, but it's hard to talk about true vibrancy and depth of bright elements here. However, the coverage of the DCI-P3 colour palette at 95% deserves praise. This is the result of applying an additional PFS coating, known from QLED technology. As a result, colours are vibrant and have a pleasant, natural tone, which partially compensates for the shortcomings in brightness.

The most faithful factory mode in terms of compliance with the source material turned out to be "Film," which was used in our tests. However, like other factory modes, it also had its drawbacks. Both in SDR and HDR materials, we noticed issues with white balance, where the dominance of green and red resulted in a yellowish hue. This effect was particularly evident in the form of yellowed whites and unnatural skin tones. The "ColourChecker" palette test showed that each colour was shifted towards warmer tones, which affected the accuracy of colour reproduction. A key aspect of the image is also contrast and brightness, which can be assessed by analysing the gamma charts and the EOTF curve. In the gamma chart, we observed significant deviations – both excessively high values that caused loss of detail in the shadows and excessively low values, which led to a drastic drop in contrast. Compared to gamma, the EOTF curve performed better, only slightly brightening the image, which had a less negative impact on overall quality.

At the beginning, it's worth noting that colour reproduction tests are always conducted in the best factory picture mode. In the case of Sharp GR8, this is the “Film” mode. When it comes to white balance, which affects how we perceive colours on the screen, in SDR mode the strong dominance of blue immediately stands out. This results in an unnatural cooling of the image – blue elements take on a purple hue, and skin tones appear to have a pink tint, which we can see in the comparative photo from the film STAR WARS. During the Color Checker test, it was clearly visible how the colour samples deviated from the standard values, confirming significant errors in colour reproduction. The gamma was also not ideal – it caused excessive brightening of the entire image, causing the scene to lose depth and proper tonal transitions.

In the 4K HDR mode, the situation looks much better. The dominance of blue is much less noticeable, although there are minor issues with the blending of red and blue. This makes some shades look slightly unnatural. The EOTF curve, which is responsible for image brightness in 4K HDR content, showed another problem – the TV tends to excessively darken the image across the entire surface of the screen.

To summarise, the “Film” mode in Sharp GR8 would require some adjustments in order to fully utilise the potential of this television. Fortunately, we took care of this and proceeded with calibration.

Philips, in both its cheaper and more expensive models, offers a wide range of tools for image calibration. We used them to improve the quality of the displayed image, although it was not as straightforward as it might seem. We managed to adjust the white balance, improve the gamma, and fine-tune the EOTF curve; however, despite these efforts, the deltaE errors remained at a very high level. The main causes were limited coverage of the DCI-P3 palette and low maximum brightness, which significantly affected the final outcome. While the overall presentation is much improved, the design features of the television did not allow us to achieve spectacular results.

Sharp GR8 is one of those televisions that really gains a second life after proper calibration. Both in HD and 4K content, the white balance performs very well, especially considering this model's price segment. The picture becomes significantly closer to what the director intended to show – colours appear natural, and skin tones gain the right depth and warmth. The brightness characteristics also leave a very positive impression. Both the gamma and the EOTF curve demonstrate really solid values. While slight imperfections can be noticed, they are subtle enough that it's difficult to see them during everyday viewing. In summary, calibration allows Sharp GR8 to show its best face, offering a picture that is not only pleasant to the eye but also faithfully conveys the creators' intentions.

In this paragraph, we'll take a look at two functionalities. We'll once again examine the function responsible for tonal transitions, but we'll also check how the television handles image scaling. The option responsible for smooth gradation is called "Distortion Reduction". As we've established, it does a pretty good job of smoothing out inconsistencies. However, we must point out two things: we are unable to enable it for HDR content, and it blurs details in films.

The television being tested cannot boast the best image scaling. There is a noticeable overall blurriness in the image, but worse still, it blurs details. This is particularly evident on the branches and the model's hair. A characteristic white halo around the figures is also visible.

Sharp GR8 is equipped with a feature called "10-bit colour reproduction," which theoretically should improve the smoothness of tonal transitions. In practice… well, the effect is surprising, but not in a very positive way. Even at the highest settings, it’s hard to notice any impact on the actual tonal transitions. Instead, the feature surprisingly smooths out things it shouldn’t - walls, shirts, or other flat surfaces look almost as if they have been ironed. In the test, we had to note that there is simply no actual impact on tonal transitions.

When it comes to image scaling, Sharp GR8 performs significantly better. The television can give the image a plastic, smooth characteristic, making even lower resolution content look quite good. Of course, with more demanding details, such as thin branches of trees in the background, you can see slight jaggedness, but it’s not something that would significantly affect the viewing comfort.

Philips PUS8359 is not the best choice for watching sports. The lack of even basic motion smoothing features means that the picture in dynamic scenes isn't sharp enough. Despite using an IPS panel (43 and 55'), which theoretically should provide better clarity than VA panel variants, there’s no noticeable improvement in terms of motion blur. In photos of fast movement, it’s clear that the figure of the little green man is distinctly blurry, indicating that the TV struggles to maintain sharpness in dynamic shots.

This is where Sharp GR8 has the opportunity to stand out against the competition in its price segment. The television is equipped with a 144 Hz refresh rate panel, which is an impressive result, especially if we plan to use it for dynamic content such as action films, sports broadcasts, or video games. Additionally, the manufacturer has included a motion smoothing feature, commonly known as a 'smoother'. The user has three levels of adjustment available, allowing them to tailor the effect to their personal preferences – from subtle smoothing to a more aggressive intervention in the fluidity of the image. It's a nice addition, particularly for those who mainly watch films and care about smooth, cinematic sequences without annoying judders or stuttering.

In terms of console compatibility, Philips PUS8359 is mainly suitable for casual gamers. Although the TV is equipped with an HDMI 2.0 port, it offers features such as Automatic Low Latency Mode (ALLM), Variable Refresh Rate (VRR), and Game Bar. ALLM automatically switches the TV to low-latency mode, making quicker reactions during gaming easier, while VRR smoothly adjusts the refresh rate, eliminating screen tearing issues. The Game Bar provides quick access to game settings and ongoing parameter monitoring; however, in our opinion, it performs worse compared to competitors' solutions.

However, more demanding gamers may feel disappointed. Philips PUS8359 does not support advanced HDR formats in games or higher refresh rates, which is due to the use of a 60 Hz panel. These shortcomings limit the TV’s ability to deliver smooth and detailed experiences during fast-paced, dynamic gameplay.

If the television has a 144 Hz panel and two full HDMI 2.1 ports, it’s clear it was designed with gamers in mind. The Sharp GR8 offers exactly that – high refresh rates and the right connections to get the most out of modern consoles and PCs. It also features ALLM, which automatically switches the TV to low latency mode, and VRR, ensuring the picture doesn’t stutter even in more demanding moments. In practice, everything works as it should, and it's difficult to find fault. However, it’s not without its shortcomings. There’s a lack of support for HGiG, which better adjusts HDR for games, as well as Game Bar, which makes it easier to quickly adjust settings without leaving the game. Despite these drawbacks, the Sharp GR8 is a really solid option for gamers.