Hisense U8NQ vs Philips OLED820

Hisense U8NQ showcases its capabilities in HDR, achieving a brightness level on the luminance chart exceeding 2000 nits. In the first, third, and fifth scenes where the screen is covered in light, the television displays very high brightness, which impresses and allows one to enjoy the full effect of HDR. Unfortunately, in the second and fourth scenes, such as those from the movie "Sicario 2," the television encounters issues maintaining brightness, resulting in disappointing results around 250 nits. Although a large number of dimming zones should theoretically help, the algorithm responsible for their control does not always perform perfectly—bright, small elements like the moon or helicopter lights are too dim, which detracts from the typical HDR effect. Instead of dazzling brightness, we get a more subdued light that does not reflect the full HDR potential. Nevertheless, the television deserves praise for its very good coverage of the DCI-P3 colour palette at 97%. As a result, colours are vibrant, and most movie scenes look really good, significantly enhancing the viewing quality.

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.

The Filmmaker mode on the Hisense U8NQ TV can be described as the most accurate mode available in this model. Despite its accuracy, it has significant errors in reproducing the reference image, which we will describe now. In the case of HD content, the white balance shows a clear dominance of red, making the image overly pink and warm. The comparative photo below illustrates how this effect influences content presentation. The brightness characteristics also leave much to be desired — too low gamma causes the screen to be excessively brightened, and blacks look lightened, making the overall picture seem cooler than it should be.

In the case of 4K HDR content, the problem is reversed — the white balance shows too much dominance of blue, resulting in an artificial character to the image and making it appear unnaturally sharp. These deviations for HD and 4K HDR content can be confirmed with the Colour Checker test, which clearly shows how colours deviate from the correct patterns.

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 white balance for both 4K and HD content has been significantly adjusted, greatly improving the image quality. Although some errors are still visible, they are not substantial enough to heavily affect the perception of the image. A notable improvement can also be seen in the gamma brightness characteristics — the image is no longer overly bright, resulting in more natural blacks and better contrast.

However, as with many other Hisense models, there are visible issues with the EOTF curve, which is responsible for managing brightness in high-quality materials. Although it may seem correct, once the filter is applied on the "EOTF in movies" graph, it is evident that the TV is somewhat "playing around" with 4K content. It is clear that the EOTF curve is significantly below the reference level, leading to an overall dimming of the image compared to the reference. We noticed this effect in previously tested scenes from the movies "Pan" and "Billy Lynn." While it is not a serious problem, it is worth mentioning. It may be of great importance to those looking for a display with the most accurate image reproduction. Despite this error, the image will be more enjoyable for most. Colours are better reproduced, and the overall image quality is significantly 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.

In the context of smoothing tonal transitions, the Hisense U8NQ television unfortunately does not perform well. The "Smooth and Gradient Image" function does not produce noticeable effects — there is no improvement in any setting, which is disappointing, especially in demanding scenes with subtle tonal transitions.

As for digital processing, or the so-called upscaling, the scene with the model is presented correctly — its outline is clear, without significant cropping. Similarly, thin lines, such as tree branches, have slight jaggedness, but the overall appearance is plastic and soft, which creates a good impression. Unfortunately, there is also an issue with the so-called overscan, which causes cropping of the image at the edges. This can be annoying when watching content such as news, where the lower information bars may be partially invisible.

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.

Hisense U8NQ is equipped with a 144 Hz matrix, making it a great choice for sports and gaming. The television will also easily satisfy movie fans, as it features a built-in "Ultra Motion Smoothness" processor that allows you to control the fluidity of the image — you can decide whether you prefer a more "framey" look or a smoother, cinematic effect. This provides great flexibility in adjusting the quality of motion to the individual viewer's 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.

Hisense U8NQ offers everything a gamer may need for comfortable gameplay. The TV supports a refresh rate of 144 Hz, which ensures an incredibly smooth picture, especially in dynamic action games. The VRR (variable refresh rate) feature allows for adjusting the image to varying frames per second, eliminating stuttering and tearing effects, resulting in an exceptionally smooth gaming experience. Additionally, the TV is equipped with the ALLM (automatic low latency mode) feature, which automatically switches the TV to game mode, minimizing input lag. This allows gamers to enjoy responsive gameplay without manually adjusting the settings.

Hisense U8NQ also supports Dolby Vision, which is important for gamers who value high picture quality, high contrast, and deep colours in games that support this format. The TV also has a “Game Bar” — a feature that provides quick access to essential settings during gameplay, significantly enhancing user convenience.

However, it is worth noting that despite its rich features, the Hisense U8NQ does not offer the HGiG standard, which is a popular HDR format in gaming. This may be disappointing for gamers expecting optimal detail reproduction in HDR scenes. Nevertheless, the other features of the TV make the Hisense U8NQ a solid choice for console gaming enthusiasts, offering smoothness, high contrast, and user convenience.

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.