Philips PUS8359 (IPS) vs Sony Bravia 8 (XR80)

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

Sony Bravia 8 performs reasonably well in terms of HDR brightness. A maximum brightness level of 880 nits is satisfactory and allows for enjoyable light effects in most scenes. In the tested segments of the films Life of Pi and Sicario 2, the television looks really good, offering vibrant and detailed images that fully convey the atmosphere of these productions.

However, a greater challenge is presented by a scene from the film The Meg, where the screen is entirely very bright. In such situations, the limitations of OLED technology are evident, as the television loses brightness, dropping to about 450 nits. This decline is less satisfactory, especially when the entire scene requires intense lighting. Despite these limitations, Sony Bravia 8 remains a competitive model, offering excellent coverage of the DCI-P3 colour gamut and a BT.2020 standard coverage of 74%. As a result, colours are rich and details are precise, which significantly enhances the quality of HDR content consumption and makes viewing a pleasant experience.

The most faithful factory mode in terms of compliance with the source material turned out to be "Film", which was used in our tests. Nevertheless, like other factory modes, it also had its flaws. In both SDR and HDR materials, we noticed issues with white balance, where the dominance of green and red resulted in a yellowish tint. This effect was particularly noticeable in the form of yellowed whites and unnatural skin tones. The "ColourChecker" palette test showed that every colour had shifted to warmer tones, affecting colour reproduction accuracy. A key aspect of the image is also contrast and brightness, which can be assessed by analysing gamma charts and the EOTF curve. On the gamma chart, we noticed significant deviations – both excessively high values, which 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.

The best factory mode available on the Sony Bravia 8 television is IMAX Enhanced, which provides the most cinematic experience, although it is not perfectly set up. The television tries to faithfully reproduce cinematic settings, but certain shortcomings are noticeable. Starting with the white balance, both for SDR and 4K materials, a pronounced blue tint can be observed. This causes the image to appear too cold, stripping it of its naturalness. Tests using Colour Checker show that colours shift towards cooler tones, which may affect the accuracy of colour reproduction and make the image less realistic.

As for brightness and contrast characteristics, the gamma shows a significant drop at the end of the chart. This means that dark details may be too dark and bright elements too bright, resulting in a loss of subtlety and becoming less visible. As seen in the sky - in the comparative photo. In turn, the EOTF curve is well above the reference value, causing bright elements of the image to be too intense. As a result, users may perceive the image as unnatural, and bright areas may lose details, negatively impacting the overall viewing quality.

Philips, both in 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, but despite these efforts, the deltaE errors were still 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 result. Although the overall presentation is much better, the design features of the television did not allow us to achieve spectacular results.

The calibration process of the Sony Bravia 8 television has brought significant improvements in image quality. The white balance has been noticeably enhanced, for both SDR and 4K HDR content, with minimal errors in the middle of the graph. Gamma has proven to be one of the biggest beneficiaries of calibration – it has been completely rid of previous dips, which has significantly impacted brightness stability and better detail reproduction in the darker parts of the image. The EOTF curve has also been levelled, making bright elements of the image appear more natural, and the overall tonal dynamics are now more balanced.

However, the most attention should be paid to colour reproduction, where, despite calibration, certain issues still persist. Sony has omitted the use of a CMS system in this model, which allows for very precise control over colours. As a result, the Colour Checker test for 4K materials still shows significant errors in colour samples. Despite these difficulties, we recommend performing calibration, as the effects are noticeable and significantly enhance image quality, particularly in terms of brightness and contrast.

In this paragraph, we will take a look at two functionalities. Once again, we will examine the feature responsible for tonal transitions, but we will also check how the television handles image scaling. The option responsible for smooth gradation is called "Distortion Reduction". As we have established, it quite effectively smooths out irregularities. However, we must point out two things: we are unable to enable it for HDR materials, and that it blurs details in films.

The tested television cannot boast the best image scaling. The overall blurriness of the image is quite noticeable, 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.

The fluidity of tonal transitions in low-quality materials on the Bravia 8 is poor. Unfortunately, the soft gradation feature (which was available in previous models) is missing, which is a significant downside. The digital noise reduction feature can considerably improve tonal transitions; however, it also tends to remove some details, such as clouds in scenes from the film The Martian, which may not be to everyone's liking. As for digital processing, the Sony XR80 performs quite well. The model in test scenes was displayed without noticeable errors, and the branches in the background are not overly jagged. This shows that the Bravia 8 is capable of effectively processing complex low-resolution image details.

Philips PUS8359 is not the best choice for watching sport. The lack of even basic motion smoothing functionality means that the image during fast-moving scenes is not adequately clear. Despite the use of an IPS panel (43 and 55'), which theoretically should offer better sharpness than VA panel variants, there is no noticeable improvement regarding blurring. In pictures with fast movement, the figure of the alien is clearly blurry, indicating that the television struggles to maintain sharpness in dynamic shots.

Sony Bravia 8 offers a maximum refresh rate of 120 Hz, which forms the basis for smooth viewing of dynamic content such as sports and games. This ensures that movements are sharp and fluid. For more demanding users, the Sony XR80 television is equipped with an advanced motion smoothing system, which is divided into three segments: Smoothness (Film), Smoothness (Camera), and Clarity. The first two are responsible for regulating the degree of blur and smoothness of the image. The third option, concerning clarity, will be described in more detail below. Each of the parameters can be adjusted to personal preferences, allowing users to find the optimal setting tailored to their individual needs.

In terms of compatibility with consoles, Philips PUS8359 is mainly suited for occasional gamers. Although the television is equipped with an HDMI 2.0 port, it offers features such as Auto Low Latency Mode (ALLM), Variable Refresh Rate (VRR), and Game Bar. ALLM automatically switches the television to low latency mode, making quicker reactions easier during gameplay, while VRR smoothly adjusts the refresh rate, eliminating screen tearing issues. The Game Bar provides quick access to game settings and real-time monitoring of parameters; however, in our opinion, it performs worse compared to the competition's solutions.

However, more demanding gamers may feel unsatisfied. 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 television's capabilities in delivering smooth and detailed experiences during fast, dynamic gameplay.

Sony Bravia 8 has significantly improved its compatibility with consoles compared to earlier models. The television supports variable refresh rate (VRR), which eliminates screen tearing, and it synchronises with graphics cards to ensure smooth image display. The automatic low latency mode (ALLM) reduces input lag, which is crucial in fast-paced games. Dolby Vision with low latency additionally provides impressive HDR effects that look stunning during gameplay.

The Sony XR80 television also features a Game Bar, allowing quick access to settings and monitoring parameters while gaming. An interesting option is the ability to enable a virtual crosshair on the screen, which can provide a slight edge in shooting games.

A downside is the lack of support for 1440p@120hz resolution, which could facilitate gaming for users with less powerful graphics cards. Additionally, the Sony XR80 only has two HDMI 2.1 ports, one of which is typically used to connect an audio system via eARC, limiting the number of available inputs for connecting next-generation consoles.