LG OLED G4 vs Hisense U7Q

LG G4 guarantees an incredibly vibrant HDR effect, placing the television firmly at the top of the rankings. The highest model in the manufacturer's 2024 portfolio, equipped with the second generation of microlens technology (MLA), has achieved a maximum brightness level of 1474 nits in real scenes. The only area where the product of the Korean manufacturer may fall short compared to LCD televisions with Mini LED backlighting is during a full-screen scene featuring a lot of white. If we were to disregard the latter scene, the average result would be even higher. It's also worth mentioning scenes with very fine details, where each one shone at full intensity, which is not as evident in non-OLED televisions. The combination of such brightness and wide coverage of the DCI-P3 color space ensures that HDR materials are more engaging than ever before.

Since the algorithms responsible for blacks are performing quite well, we expected a similarly good outcome when it comes to brightness and overall HDR quality. Unfortunately, we have to disappoint you a bit here.

The U7Q is quite a bright television – under the best conditions, it can reach around 800 nits, which indeed impresses in some scenes, especially in scenes like those from the movie The Meg. Bright segments can shine, and the HDR effect is noticeable. The problem arises when very small, bright elements appear on a dark background – for example, in Sicario 2 or in the second scene from Life of Pi. At such moments, the dimming algorithms operate too aggressively. Yes, the blacks look great at that point, but the brightest spots can almost completely disappear, causing the HDR effect to vanish and details to be barely visible. That’s just the charm of this technology in this price segment.

As a consolation, it is worth mentioning that the U7Q is marketed as a QLED (in practice, a PFS layer is used, which operates very similarly), and it can indeed display a wide colour gamut – a DCI-P3 coverage of around 94% is a very good result for this class.

The best factory mode in terms of colour reproduction was "Filmmaker". This is the one we used during our tests. Let's check how its characteristics looked before the calibration process. Taking a closer look at the white balance first, we can notice a significant dominance of red and green colour. As a result, the image had a warm yellow tint. This is the kind of characteristic we usually observe in "Cinema", "Filmmaker", or similarly named modes. The effect of such a colour balance was clearly visible in both SDR and HDR content, which, after switching from "Standard" mode, was distinctly yellowed. Now let's move on to two graphs that are responsible for brightness characteristics, and consequently, image contrast. The first one (Gamma), representing materials with a standard colour palette, performed decently. For most of the time, the midtones and bright whites were represented very accurately, however, it noticeably lost the darkest details which blended into a black patch. On the other hand, HDR materials, represented by the EOTF curve graph, exhibited a significant drop in contrast due to a strong boost in brightness. There was also an issue with the colours themselves as seen on the "ColorChecker" graph since they were noticeably undersaturated.

We tested the U7Q in the best possible picture mode, which is Filmmaker Mode. This mode is supposed to provide the most "cinematic" experience that aligns with the creators' intentions – straight out of the box. Unfortunately… even this professionally sounding name doesn’t guarantee a perfect image.

In our unit, the problem lay in the poorly set white balance. In both HD and 4K content, the image had too much blue and red, resulting in a slightly pinkish hue on the screen. It didn’t look terrible, but it was noticeable – especially in bright scenes and on white backgrounds. That alone could have been forgiven, but the biggest issue is managing brightness in HDR content. The EOTF curve from the measurements confirms what we saw earlier during scene tests: the television can overly dim the smallest bright elements, causing them to nearly disappear, or conversely – excessively brighten the brightest parts, which affects the naturalness of the image.

The manufacturer has been implementing extensive support for the calibration process in their LG televisions for many years. Therefore, we used 2- and 20-point grey scale adjustments along with an advanced CMS (Color Management System) and got to work. As you can see, thanks to the procedure carried out, each of the parameters has significantly improved. The use of tools has resulted in extremely beneficial effects, which include: studio colour reproduction, recovery of details in dark areas of the image, appropriate brightness characteristics, and proper colour saturation. Thus, we have maximised our approach to the reference image, or the one that the film director saw on the preview monitor. It is worth noting that the LG G4 televisions are the only ones that allow for even deeper intervention in image quality due to the capability to calibrate with 3D LUT matrices. However, this solution is recommended only for post-production or graphic studios.

Thanks to specialist tools, we managed to correct the colour quality in SDR content to almost perfection. In materials with lower dynamics, delta E errors dropped below 0.5, which can be considered an almost reference result. The picture on television, YouTube, or classic Full HD looks really good after calibration. Well then – but where was it not so easy to improve the image? Primarily it concerns HDR quality content. Although we managed to somewhat "tame" the white balance and eliminate pink tints in most scenes, unfortunately, we did not have full control over brightness management. We set the local dimming settings according to the best observations – SDR: Medium, HDR: High – but the U7Q still did everything a bit its own way. There were still cases of overly strong dimming or brightening of details that calibration simply could not eliminate. And although the overall reception of content is much better, one must reckon that the U7Q will always have something to say at the end with "but".

The tested television did not perform well with content rich in tonal transitions, resulting in a strong posterisation effect. However, there is a partial remedy for this ailment. 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 high smoothing effectiveness on bright colours, though low on darker ones. We recommend primarily using the first one due to the fact that the other two interfere with directorial intentions, removing film grain.

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

There are situations where we would like to smooth out tonal transitions a bit, especially in older materials – those with limited source quality. The U7Q has been equipped with a feature called “Smooth and Gradient Image,” but unfortunately… it works very poorly. In the “Low” option, the effects are practically unnoticeable, and other settings smooth out the details but don’t improve tonal transitions. The only positive thing is that the feature doesn’t interfere with the film grain, so it doesn’t ruin the natural structure of the image.

Fortunately, content scaling performs quite well. The image is not overly sharpened, there is no artificial clarity – and while it’s known that this isn’t the level of high-end TVs, the U7Q has no problem displaying really old content in a completely acceptable manner.

The maximum refresh rate that we can set on the LG G4 is 144 Hz. Naturally, this is only possible by connecting the LG G4 to a very powerful PC. Otherwise, we will be operating 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 who require high fluidity of image, the manufacturer has implemented a multi-level motion smoother called "TrueMotion". It 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 increment affecting the degree of smoothing, so everyone can find their sweet spot.

The LG OLED G4 panel features an average response time of 0.78 ms (which directly results from our measurements), allowing for an incredibly clear image, unattainable by LCD televisions, which have response times of even several milliseconds. This is clearly visible in the "UFO Test" images, showing the absence of any trailing blur behind the object. Furthermore, the LG OLED G4 test showed that the television offers the ability to precisely adjust motion smoothing functionality, allowing users to choose the ideal level of image interpolation. We particularly appreciated this during fast-paced action in video games, where the LG G4 performed exceptionally well, minimising any blurriness. Thanks to OLED technology, this model eliminates so-called ghosting, ensuring that the image remains sharp even in the most dynamic sports or movie scenes.

U7Q is a truly fast TV, much like its more powerful version “PRO”. At 4K resolution, it supports up to 144 Hz refresh rate, and if someone wants even more – in Full HD, you can achieve up to 240 Hz! This will mainly benefit PC gamers, but it’s worth appreciating – it’s a rare feature in this price segment. Right from the start, it’s clear that the U7Q has been designed with dynamic content in mind, such as games or sports. In films, we’re not left “out in the cold” either – the U7Q offers an “Ultra Motion Smoothness” feature, where with two sliders, you can adjust whether you want a smoother, theatrical picture, or something closer to cinematic style with a visible frame. It’s good that, like most manufacturers, we have a choice here and can customise it to our own preferences.

The LG G4 television supports all features that make up the HDMI 2.1 standard. During testing, each feature activated without any issues, which allows us to consider the television as designed for gaming. Its performance will certainly be appreciated by both console users and those connecting the LG G4 to a computer. It’s also worth mentioning the proper implementation of the HGIG (HDR Gaming Interest Group) mode, which ensures that games mastered to brightness levels beyond the maximum luminance of the LG G4 will correctly map tones, keeping the game image true to the original.

A nice touch is the presence of a special GameBar that we can bring up at any moment to check game parameters, but most importantly, to change them quickly. More importantly, turning on VRR technology does not degrade contrast, which is often a problem in televisions with local dimming or Mini LED backlighting. Of course, this is thanks to the OLED panel itself, characterised by pixel self-emissiveness. As a journalistic note, we will only mention a slight grey flicker, which, however, is somewhat normal when VRR is enabled.

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

The Hisense U7Q is a TV designed with gamers in mind – and you can see that straight away with its gaming capabilities. It has practically everything you could wish for: Variable Refresh Rate (VRR) – check, Auto Low Latency Mode (ALLM) – check, and high refresh rates of up to 240 Hz in Full HD, along with support for various resolutions, not just 4K. It’s truly an impressive set of features that makes the U7Q perform well with both fast-paced shooters on consoles and more demanding titles on PC. Of course – like most Hisense models – it lacks a proper implementation of the HGiG feature. It’s a shame because HGiG allows the console's brightness to be adjusted to the specific TV, which in practice makes it easier to display HDR games according to the creators' intentions. Without this, you just have to deal with some limitations in the final HDR image in games.