Hisense U8NQ vs LG 55 B4

Hisense U8NQ demonstrates its capabilities in terms of HDR, achieving a luminance chart score exceeding 2000 nits. In the first, third, and fifth scenes where the screen is bathed in light, the television displayed very high brightness that impresses and allows one to fully enjoy the HDR effect. Unfortunately, in the second and fourth scenes, such as those from the film "Sicario 2", the television encounters difficulties in maintaining brightness, resulting in disappointing scores around 250 nits. Although the large number of dimming zones should theoretically help, the algorithm responsible for their control does not always work 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 realise the full potential of HDR. Nevertheless, the television deserves praise for its very good coverage of the DCI-P3 colour gamut at 97%. This results in vibrant colours, and most film scenes look really good, significantly enhancing the viewing quality.

The brightness results in HDR materials for LG B4 are very good. It is true that none of them exceed 1000 nits, although the stability of luminance is excellent and looks practically the same in every scenario. The only moment where the tested television performs worse is the last of the scenes, although this should not be surprising. Large frames filled with a lot of white have always been, and probably will continue to be, somewhat of a weakness for OLED televisions. However, the combination of perfect contrast, black levels, and brightness of LG B4 allows for a full experience of the HDR effect. Additionally, the incredibly high coverage of the DCI-P3 colour gamut deserves recognition, reaching 99%. This makes the colours look incredibly vivid and striking.

The Filmmaker mode on the Hisense U8NQ television can be described as the most accurate mode available on this model. Despite its accuracy, it has significant errors in reproducing reference images, which we will now describe. 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 impacts content presentation. The brightness characteristics also leave much to be desired — too low a gamma results in an excessively bright screen, and blacks appear elevated, making the overall image seem cooler than it should be.

In the case of 4K HDR content, the problem is the opposite — the white balance shows too great a dominance of blue, resulting in an artificial appearance and an unnaturally sharp image. All of these deviations for both HD and 4K HDR content can be confirmed using the Colour Checker test, which clearly demonstrates how colours deviate from correct standards.

The best factory mode prepared by the manufacturer is "Filmmaker," which is exactly what we used throughout the entire testing procedure. We must admit that the unit we received out of the box had quite good colour reproduction. The biggest problem in both SDR and HDR content turned out to be white balance. In the former, a strong red hue was evident, causing the displayed image to have a pronounced yellow tint, particularly noticeable on skin tones and whites. In higher quality materials, this colour was also accentuated, but due to a lack of blue, there were also signs of green visible. Apart from these issues, we also encountered problems with grayscale and the colours themselves.

The white balance for both 4K and HD content has been significantly adjusted, which has greatly improved the picture quality. Although some errors are still visible, they are not large enough to heavily affect the perception of the image. A significant improvement can also be noticed in the gamma brightness characteristic — the picture is no longer excessively bright, translating into 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 at first glance it may seem correct, when the filter is applied to the "EOTF in films" chart, it is evident that the television somewhat "manipulates" 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 films "Pan" and "Billy Lynn." While it is not a serious issue, it is worth noting. It may be of great importance to those seeking a display with the most faithful reproduction of the image. Despite this error, for most, the picture will be more enjoyable. Colours are better represented, and the overall picture quality is significantly improved.

LG B4 has been providing very advanced calibration tools in its televisions for years. We can even say that as the only manufacturer on the market, it allows for such deep intervention in image adjustment. It is thanks to these tools that we were able to calibrate the device so well. Evidence of this is the extremely low deltaE errors, which can be said to be at a reference level. Both SDR and HDR materials now look exactly as intended by the film director. It is no coincidence that televisions of this brand are most often used as preview screens for various graphic or post-production studios.

In the context of smoothing tonal transitions, the television Hisense U8NQ unfortunately struggles. The “Smooth and Gradient Picture” function does not yield noticeable effects — there is no improvement in any setting, which is disappointing, especially for demanding scenes with a lot of subtle tonal transitions.

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

In this paragraph, we will take another look at the function for smoothing tonal transitions, but we will also check how the television handles lower quality material. As we have managed to verify, the setting responsible for smooth gradation works quite efficiently, although it has its weaker moments. Just as the function works correctly in SDR content, it becomes rather useless in HDR content. Even at the lowest of the options, it blurs essential details, which is why we advise against using it.

The image scaling on LG B4 is rated rather moderately positively. Although there is no edge doubling, the image itself is naturally "soft." We can change this by adjusting the sharpness slider.

Hisense U8NQ is equipped with a 144 Hz panel, making it an excellent choice for both sports and gaming. The television will also easily satisfy film enthusiasts, as it features a built-in "Ultra Motion Smoothness" processor that allows you to control the smoothness of the image — you can decide whether you prefer a more "framey" picture or a smoother, theatrical effect. This provides great flexibility in adjusting motion quality to the viewer’s individual preferences.

The maximum refresh rate that we can set on the LG B4 is 120 Hz. This is the absolute minimum for those requiring high image fluidity. The manufacturer has implemented a multi-step motion smoother called "TruMotion". It has been divided into two separate sliders adjusting the sharpness of moving images (De-Blur) and jitter (De-Judder). Both sliders can be set in the range from 0 to 10, with each degree affecting the level of fluidity, so everyone can find their golden mean.

The LG OLED B4 panel features an average response time of 0.1 ms (which directly results from our measurements), allowing for an incredibly clear image, unattainable for LCD televisions, whose response times can be as high as several milliseconds. This is clearly evident in the pictures from the "UFO Test", showing no trail following the object.

Hisense U8NQ offers everything a gamer may need for comfortable gameplay. The television supports a refresh rate of 144 Hz, ensuring an extremely smooth image, particularly in dynamic action games. The VRR (Variable Refresh Rate) feature allows the image to adjust to varying frames per second, eliminating stuttering and tearing, resulting in exceptionally fluid gameplay. Additionally, the television is equipped with an ALLM (Automatic Low Latency Mode) feature, which automatically switches the television to gaming mode, minimising input lag. This allows players to enjoy responsive gameplay without the need to manually adjust settings.

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

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

The LG B4 television is equipped with four fully-fledged HDMI 2.1 ports with a full bandwidth of 48Gbps. All features that are identical to this standard were activated without any issues, and throughout the entire testing process, they did not cause any problems. The combination of such extensive functionality and low input lag suggests that the tested television is truly made for gaming. This is not surprising, considering that the manufacturer has always placed great emphasis on this. Therefore, we can enjoy both the properly implemented HGIG mode and gaming in Dolby Vision with low latency. This pairing will certainly attract the attention of all passionate gamers for whom quality is paramount.

An additional standard in televisions from this Korean manufacturer is the implementation of GameBar, allowing for quick adjustment of settings "on the fly," without the need to exit the game. It also enables image adjustments for individuals with visual impairments, which is a very nice touch. Another important piece of information is that when VRR technology is enabled, we will not experience a drop in contrast. This is thanks to the construction of the panel and the lack of conventional backlighting. However, it is normal for shades of grey to flicker slightly; nevertheless, this is a characteristic feature of this function regardless of the manufacturer or television.

In summary: the LG B4, like all of the manufacturer’s OLEDs equipped with 120Hz panels and HDMI 2.1 ports, creates a harmonious whole with the console. In practice, this is a comprehensive television, and if we expect the highest possible efficiency in gaming, B4 will be the ideal choice.