Hisense U7NQ vs TCL P755

The Hisense U7NQ 65 television showed considerable potential on the luminance chart, exceeding the 1000 nits barrier and easily achieving very high brightness results in the first, third, and fifth test scenes. However, as before, in the second and fourth test scenes, such as from the film Sicario 2, there are significant issues with maintaining brightness, and results around 200 nits are very disappointing. Despite a large number of dimming zones, the algorithm in the television responsible for controlling these zones fails to respond adequately — in this case, it significantly dims small elements such as the moon or the light from a helicopter. The bright light that should dazzle us is too dim to be considered HDR effect. Nevertheless, it is worth praising the television for its high coverage of the DCI-P3 colour gamut at 96%, which allows it to represent most film scenes well.

TCL P755 provides average HDR effect quality. The maximum brightness of the television is slightly below 300 nits. Such brightness limits the intensity of bright areas in HDR content. In practice, this means that bright elements may not be sufficiently pronounced, which affects the overall impression of contrast. However, the television offers a wide coverage of the DCI P3 colour gamut, reaching around 93%. As a result, colours are vibrant and saturated, significantly improving colour reproduction quality in HDR content. Despite the limited brightness, the wide colour range allows for richer and more realistic shades.

The Chinese manufacturer offers various picture settings in its televisions, but the best mode in this model is undoubtedly Filmmaker Mode. Despite its name, this mode has its issues: white balance, although roughly correct, is characterised by a strong dominance of warm tones due to the oversaturation of red, both in 4K and HD content. The Colour Checker test confirms these errors — deviations of samples towards inappropriate hues are visible. As for brightness characteristics, the gamma responsible for HD content shows values below 2.4, leading to some brightening of the screen. Meanwhile, the EOTF curve reveals the television's struggles with displaying small bright elements, as confirmed by the previously described paragraphs.

The colour reproduction in the P755 in "Movie" mode, although it is the best factory setting, leaves much to be desired. The biggest problem is the white balance, where the graph clearly shows a spike in red and a drop in green. This leads to a shift in colours towards red, making the colours on the screen less natural and potentially looking incorrect, especially in scenes with a white or neutral background. This is confirmed by the "Colour Checker" test, which reveals that the colours are indeed skewed towards red, affecting the realism of the image and reducing the perception of colour depth. In terms of contrast, the gamma chart analysis shows considerable fluctuations, particularly in dark areas of the image, where values drop below the optimal level of 2.4. This results in darker areas being displayed brighter than they should be. Additionally, the EOTF curve, responsible for brightness reproduction, is slightly above the reference curve. The graph shows a slight boost in brightness to around 50%, followed by only a minor decrease. This leads to excessive brightness enhancement in the mid-tones of the image and may result in loss of detail and distortion in brighter scenes.

Hisense televisions offer many image correction tools that allow users to adjust settings to their own preferences, which is why we decided to take advantage of these capabilities to bring the image quality closer to a reference standard. In terms of white balance, we were able to eliminate the dominance of the red colour, resulting in more neutral hues, which allowed for a more realistic image in both 4K and HD materials. We observed similar improvements in brightness characteristics. The gamma, which previously led to excessive screen brightness, was corrected, contributing to better detail reproduction in the darker areas of the image while maintaining a natural tonal balance.

However, the biggest challenge was calibrating the EOTF curve, which corresponds to brightness in 4K materials. At first glance, the EOTF value appeared nearly perfect, but detailed tests showed somewhat different results. When we examined it more closely — especially using the filter on the right side of the EOTF chart — we noticed how the television manipulated 4K film materials, often significantly boosting brightness. This effect was particularly noticeable in scenes from films such as Pan and Billy Lynn, where the television attempted to artificially increase the brightness of elements, affecting their naturalness. Despite these imperfections, the calibration yielded positive results, especially in terms of tonal improvement. For most users, the final effect should be satisfactory, particularly if they are keen on bringing the image quality closer to professional reference standards.

After calibration, the colour reproduction on the television improves significantly when it comes to SDR content. The colour curves are now close to the ideal value, and the gamma is more stable. Although the drop at the beginning of the graph to value is still present, the overall accuracy of colour reproduction is much better. The "Colour Checker" test shows that most colour samples have errors below level 2, indicating improved colour fidelity. A few deviations are present, but generally, the colours are now more realistic and consistent with reality.

Calibration also brings improvement in HDR content. The white balance has been improved, resulting in a more natural colour reproduction. The EOTF curve, although now closer to the reference curve, still shows a slight boost in brightness at the beginning of the graph. This leads to minor distortions in very bright scenes, but the overall tonal quality and detail have been enhanced. Dynamic tone mapping works more effectively, improving image quality in bright areas and retaining more detail.

Although the device's picture does not achieve complete perfection, calibration brings significant improvement. After adjusting the settings, the television presents itself much better, offering a more realistic and accurate colour reproduction in SDR and HDR content. While some shortcomings can still be noticed, calibration effectively eliminates many previous issues, ensuring better image quality and more natural colours.

When it comes to smoothing tonal transitions, despite the presence of the "Smooth and Gradient Image" function in the test sequence, we did not notice that the function made any difference — we recommend turning it off. As for upscaling, the television handled our model reasonably well, and the branches in the background are not overly jagged — the image appears quite plastic. However, it was slightly cropped by the so-called overscan.

The "Gradual Smoothing" function works quite well, effectively eliminating visible boundaries between different shades of the same colour. Thanks to it, tonal transitions are smoother. Unfortunately, this function is not available in HDR mode, which may affect the quality of tonal gradations in higher dynamic range materials.

When it comes to image scaling, the television does not perform at its best. There are noticeable edge cuts, particularly evident on the figure of the model and the branches of trees. The blurring of details in these areas affects the overall sharpness of the image. This may be noticeable when watching content in a lower resolution. Moreover, SD quality images are displayed with slight cropping at the top as well as the bottom.

Hisense U7NQ has a refresh rate of 144 Hz, which definitely contributes to smooth movement. For film enthusiasts, two functions are available: judder reduction and motion blur reduction. The judder reduction function minimises the effect known as judder, or unpleasant jumps in the image, particularly noticeable at lower frame rates. Meanwhile, motion blur reduction helps to sharpen fast-moving objects, which is useful when watching dynamic action scenes.

As for ghosting, the television has a good response time, meaning excessive ghosting is not visible, except in specific situations, such as the test with the little green man on a dark background. In such cases, slight artefacts may appear, but overall the television handles dynamic images well, providing satisfactory motion quality.

The television offers decent, although not perfect, results in terms of motion fluidity. For films, the television features a “Flicker Reduction” function that allows for motion fluidity adjustment on a scale from 1 to 10. With this option, we can customise the appearance of the image to a cinematic or more theatrical preference (with a slower or faster pace).

Hisense U7NQ offers everything a gamer might need for comfortable gameplay. The television supports a refresh rate of 144 Hz, providing an incredibly smooth image, especially in dynamic action games. The VRR (variable refresh rate) feature ensures that the image adapts to varying frames per second, eliminating stuttering and screen tearing. Additionally, there is an ALLM (automatic low latency mode) feature, which automatically switches the television to game mode, minimising input lag.

The television also supports Dolby Vision, which is particularly important for gamers who appreciate high contrast and rich colours in games that support this format. The Hisense U7NQ also has a Game Bar feature that allows quick access to the most important settings during gameplay, as well as support for G-Sync technology, further reducing screen tearing effects.

Unfortunately, despite a wide range of features, it lacks support for the most popular HDR format in gaming — HGiG. This may be disappointing for gamers who expect optimal detail reproduction in HDR scenes. Nevertheless, the other features make the Hisense U7NQ a solid choice for any console gaming enthusiast.

The device offers a range of features useful for gamers, such as ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate), Dolby Vision for gamers, and Game Bar. ALLM automatically switches the television to low latency mode, significantly improving response to commands from the controller and minimising input lag. VRR synchronises the screen refresh rate with the number of frames generated by the console, eliminating screen tearing and providing smoother gameplay. Dolby Vision for gamers enhances picture quality, offering better colour and contrast reproduction in games that support this format. The Game Bar feature allows quick access to game settings and monitoring of key parameters such as reaction time.

However, the television has certain limitations. The 60 Hz panel prevents the display of higher refresh rate signals at various resolutions, which may affect the smoothness of the image in dynamic games. Additionally, the lack of support for G-Sync technology for PC may impact gameplay quality on a computer. It is also worth noting that the HGiG mode, which aims to improve picture quality in HDR games, does not function correctly in this model, negatively affecting the visual experience in HDR-supported games.