LG OLED G4 vs Hisense U7NQ

LG G4 guarantees an incredibly vivid HDR effect, placing the television among the very best. The equipment of the highest model in the producer's 2024 portfolio with the second generation of micro-lens technology (MLA) has achieved a maximum brightness level of 1474 nits in real scenes. The only area where the product from the Korean manufacturer may lag behind LCD televisions with Mini LED backlighting is during the full-screen scenes featuring a lot of white. If we disregard the latter type of scene, the average result would be even higher. It is also worth mentioning scenes with very fine details, where each one shines at full intensity, which is not as evident in non-OLED televisions. The combination of such brightness and wide coverage of the DCI-P3 palette makes HDR materials more engaging than ever before.

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.

The best factory mode in terms of colour reproduction was "Filmmaker". This was the one we used during our tests. Let's check how its characteristics looked before the calibration process. Looking closely at the white balance first, we can notice a significant dominance of red and green. As a result, the image had a warm yellowish hue. Such characteristics are typically observed in "Cinema", "Filmmaker" or similarly named modes. The effect of this colour balance was clearly visible in both SDR and HDR content, which after switching from "Standard" mode appeared distinctly yellow. Now, let's move on to two graphs that are responsible for the brightness characteristics and consequently the contrast of the image. The first one (Gamma), representing materials with a standard colour palette, performed decently. For most of the time, midtones and bright whites were reproduced very accurately; however, it noticeably lost the darkest details, which merged into a black blob. Conversely, HDR materials, represented by the EOTF curve graph, exhibited a significant drop in contrast due to a strong boost in brightness. The colours themselves also posed a problem, as can be seen on the "ColorChecker" graph, since they were noticeably under-saturated.

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 manufacturer has implemented extensive support for the calibration process in its LG televisions for many years. We therefore used 2- and 20-point greyscale adjustments, as well as an advanced CMS (Colour Management System), and got to work. As you can see, thanks to the procedure carried out, each parameter has significantly improved. The use of tools allowed for the achievement of extremely beneficial effects, which include: studio colour reproduction, recovery of details in dark areas of the image, appropriate brightness characteristics, and suitable colour saturation. This brings us as close as possible to the reference image, which is what the film director saw on the preview monitor. It is worth noting that the LG G4 televisions alone allow for even deeper intervention in image quality thanks to the ability to calibrate with 3D LUTs. However, this is a solution recommended only for post-production or graphic studios.

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.

The tested television did not perform particularly well with materials rich in tonal transitions, as a result of which we could observe a strong posterisation effect. However, there is a partial remedy for this issue. The manufacturer has equipped the LG G4 with a smoothing system called "Gentle Gradation," which we can apply at three levels: Low, Medium, and High. Each of these options guarantees quite a high effectiveness of smoothing on light colours, although it is low on darker ones. We recommend primarily using the first one, as the other two interfere with the director's intentions by removing film grain.

When watching lower-quality materials, the efficiency of the television during upscaling is extremely important. The image from the tested television is sharp and clear. However, one should pay attention to the jagged edges of fine details and minor issues around characters, such as the creation of halo effects, which occurs due to the sharpening imposed by LG G4 even when the lowest value on the slider, that is 0, is set. It is worth noting that this represents a certain change compared to the LG G3, which did not impose such strong image sharpening, even when the appropriate slider was set to position 0.

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 maximum refresh rate that we can set on the LG G4 is 144 Hz. Naturally, this is only possible when the LG G4 is connected to a very powerful PC. Otherwise, we will operate at a maximum refresh rate of 120 Hz, which is recommended if we primarily want to watch sports or content with high motion dynamics. For those requiring high image fluidity, the manufacturer has implemented a multi-level motion smoother called "TrueMotion". This has been divided into two separate sliders that adjust the sharpness of moving images (De-Blur) and judder (De-Judder). Both sliders can be set in the range from 0 to 10, with each level affecting the degree of smoothness, allowing everyone to find their golden mean.

The LG OLED G4 panel features an average response time of 0.78 ms (as directly derived from our measurements), enabling an incredibly clear image, unattainable by LCD televisions, which can have response times of several milliseconds. This is perfectly illustrated by the images from the "UFO Test", which show no trailing blur behind the object. Moreover, the LG OLED G4 test revealed that the television offers the ability to precisely adjust the motion smoothing function, allowing users to select the ideal level of image interpolation. We particularly appreciated this during fast-paced actions in video games, where the LG G4 performed exceptionally well, minimising any blurring. Thanks to OLED technology, this model eliminates so-called ghosting, ensuring that the image remains sharp even in the most dynamic sporting or cinematic scenes.

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 LG G4 television supports all the features that make up the HDMI 2.1 standard. During testing, each of them activated without the slightest problem, which allows us to consider the television as designed for gaming. Their functionality will surely be appreciated by both console users and those connecting the LG G4 to a computer. It is also worth mentioning the correct implementation of the HGIG (HDR Gaming Interest Group) mode, which ensures that games mastered to brightness levels exceeding the maximum luminance of the LG G4 will correctly map tones, and the game's visuals will remain true to the original.

A nice touch is the existence of a special GameBar, which we can call up at any moment to check game parameters, but most importantly, to change them quickly. More importantly, enabling VRR technology does not degrade contrast, which is very common in televisions that feature local dimming or Mini LED backlighting. Of course, this is thanks to the OLED panel itself, characterised by pixel self-emission. As a matter of editorial obligation, we will only mention a slight grey flicker, which is somewhat normal after enabling VRR.

In summary, the LG G4, like practically all OLED televisions, is an ideal product for all kinds of games and online competitions. With fully-fledged HDMI 2.1 connections with a full bandwidth of 48 Gbit, features such as VRR, ALLM, G-Sync, FreeSync, or gaming in HDR Dolby Vision will bring much joy.

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.