Sony X75WL vs Philips OLED820

The luminance chart for the Sony X75WL revealed a peak brightness of just 350 nits, which is underwhelming for an HDR-capable display. This limited brightness means that HDR scenes lack the depth and impactful highlights expected for immersive viewing. Additionally, the subpar coverage of the DCI-P3 colour gamut results in a less vibrant colour representation, negatively impacting the overall quality of HDR content. The combination of insufficient brightness and poor colour gamut coverage significantly diminishes the intended HDR effect, making this model a less compelling choice for those prioritising HDR performance.

When it comes to HDR quality, the Philips OLED820 uses the same class of WOLED panel that we find in its biggest competitors – LG C5 or Samsung S90F. This means we can count on truly solid performance. This year, mid-range OLED panels are capable of exceeding the threshold of a thousand nits, and the model tested reaches around 1300 nits in some films. This is an outstanding result that allows for an extremely precise depiction of the director's vision, as contemporary productions are mastered in such brightness ranges. Of course, there are situations where even the OLED820 has to compromise. Full-screen scenes flooded with white, like those in the movie The Meg, can drop brightness to 400–500 nits, which clearly weakens the effect. This is a characteristic of OLED technology that has not yet been fully eliminated. Despite this limitation, it is hard not to appreciate the HDR in this model – high luminance and wide coverage of the DCI-P3 color gamut at 99% make the picture simply look great.

Colour reproduction tests on the X75WL model, conducted in movie mode, reveal strengths and weaknesses. While movie mode offers some of the best image settings, it is not flawless. One of the most significant issues with the X75WL is the white balance, particularly for HD and 4K HDR content, where a blue hue dominates the image. This results in a noticeably cold tone throughout. The colour checker confirms these discrepancies, showing a clear shift towards cooler shades.

Regarding brightness, the contrast gamma level is generally acceptable, but the EOTF curve presents more challenges. There are noticeable problems with maintaining consistent brightness, with the image sometimes appearing too washed out or too dim. These issues affect the overall visual experience and hinder the accurate perception of content.

The color reproduction in the factory settings really surprised us, and positively so. The Philips OLED820, switched to Filmmaker mode, immediately showed that it was quite well tuned in terms of color. The white balance was relatively accurate, though with a slight lack in the blue hue, which sometimes gave the image a slightly yellowish tint. However, this is not a flaw that particularly interferes with everyday viewing. A larger problem arose with the brightness characteristic. The gamma chart clearly deviated from the ideal, with the line being below the expected values, causing the image to be overly brightened, and the colors looked as if they were covered with a light milky filter. This effect was also noticeable in tests using the Colour Checker pattern, where more pronounced errors appeared.

The X75WL is one of those cases where image calibration may not lead to a dramatic transformation, but it does offer a notable improvement in colour perception. The white balance for HD and 4K content, has been significantly enhanced, eliminating the strong dominance of cooler tones. The gamma chart also appears more stable, resulting in better image quality overall. However, the main issue remains the EOTF curve, which controls brightness in 4K content. Due to the technological limitations of the television (such as the IPS panel and the absence of local dimming), a significant improvement is difficult to achieve, as the model’s capabilities are constrained. Despite these limitations, the tonality of the image has been substantially improved.

After calibration, both the Filmmaker mode and the game mode gained quite a lot. A slight adjustment of the white balance and an improvement in brightness characteristics resulted in excellent outcomes for SDR content – the image looked almost perfect, natural and very close to the reference. In the case of HDR materials, the situation was similar; the colors looked stunning and it was hard to find anything to criticize. However, we noticed a certain feature that we had already pointed out when comparing scenes from the movie Billy Lynn. An analysis of the EOTF curve revealed that the television has a slight tendency to dim details in the blacks, which means that the darkest sections are not always displayed exactly as the director intended. Nevertheless, the effect after calibration is remarkable, and the OLED820 stands out as one of the more interesting screens in its class. It just needs a little bit of fine-tuning, and there's really nothing to be afraid of.

The X75WL struggles with low-quality tonal transitions. The lack of any function to improve tonal gradation results in noticeable imperfections in colour transitions, which detracts from the overall image quality. However, the digital processing is commendable, with the image displayed without overscan, and relatively sharp presentation. This added sharpness may appeal to some users, though it does not compensate for the tonal transition issues.

Fortunately, the earlier effects of the aforementioned posterization can be quite effectively mitigated. The "distortion reduction" feature set to medium handles unwanted color banding, improving the smoothness of tonal transitions. It does happen, however, that it works a bit too aggressively and smooths out some details – such as minor skin imperfections of the actors – but despite this, it can be considered worth using without major compromises. The upscaling in the OLED820 also performs well. The test image with the model is exceptionally soft, sometimes even too much so, although this can be alleviated by slightly increasing the sharpness in the picture menu – it’s a matter of personal preference. The lack of overscan issues with very low-resolution content is also commendable, meaning we don't have to worry that the image will be unnecessarily cropped.

The X75WL features a 60 Hz panel, making it more suited for movie-watching than high-speed gaming. It is equipped with a motion smoother function called Motionflow, which allows users to adjust picture fluidity on a 10-point scale. This function adds intermediate frames, improving motion smoothness and creating a more cinematic effect by reducing choppiness. Additionally, the clarity adjustment helps reduce motion blur, making it particularly beneficial for fast-paced scenes like sports or dynamic action sequences in films. With these settings, users can fine-tune the fluidity and sharpness of motion to their preferences.

Motion fluidity is an area where OLEDs always shine, and the Philips OLED820 confirms this rule. The panel itself offers a refresh rate of 144 Hz, which will mainly benefit PC gamers, but even with standard television sources or consoles, where 120 Hz is used, the motion is fast, sharp, and simultaneously smooth, without traces of ghosting. This is thanks to the outstanding response time between pixels, which ensures the image retains clarity in every dynamic scene. The manufacturer has also added its own smoothing feature called "Motion Style." In the menu, we find two sliders – the first, responsible for fluidity, allows us to adjust the amount of artificially added frames in movies. This way, we can choose a raw, cinematic character with a clearly visible film frame or a more theatrical image with smooth motion. The second slider is for reducing blurring, especially useful in sports broadcasts. Here, we definitely recommend setting it to the maximum value, as the effect is truly excellent.

The X75WL is not the best television for gamers, as it lacks some key features that more demanding users expect. While it includes the Auto Low Latency Mode (ALLM) and a basic Game Bar, these are not sufficient for a truly immersive gaming experience. In this price range, features like VRR (Variable Refresh Rate) and a 120 Hz refresh rate—at least in Full HD—have become standard, but unfortunately, these are missing in the X75WL. This is a significant drawback for Sony, as the competition offers more advanced gaming features at a similar price.

Philips OLED820 is one of the most complete televisions for gamers. It practically has everything you could expect: two HDMI 2.1 ports with full bandwidth of 48 Gbps (too bad there aren't four), variable refresh rate VRR, automatic game mode ALLM, support for Dolby Vision in games, and a good implementation of the HGiG mode. The television also handles lower resolutions at 120 Hz without any issues, so you can count on great flexibility when choosing different picture modes on the console. Philips also adds Game Bar – a panel that allows you to change picture modes, add a crosshair, or view parameters. Although it looks quite clunky and is less polished than that of the competition, it serves its purpose. In practice, therefore, the OLED820, besides having a full set of four HDMI 2.1 ports, offers almost everything a gamer might need.