LG OLED G4 vs Hisense S7NQ CanvasTV

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.

When it comes to the brightness of the television and how it handles bright elements while watching films, it's just average – similar to the contrast. The average brightness level of the Hisense S7NQ is around 500 nits. This is a value that allows you to feel the hints of true HDR, but it's definitely not enough to speak of remarkable effects. However, the television should be praised for its colour gamut coverage – films look very colourful and vibrant. Thanks to the use of a PFS LED (QLED) coating, the device is able to cover more than 90% of the DCI-P3 colour gamut and over 72% of the wider BT.2020 palette. For a television of this class – these are really very good results.

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.

Let's check how the Hisense S7NQ CanvasTV performs in terms of colour reproduction in its best factory mode, which is Filmmaker. Right from the start, it’s clear that it’s definitely better than in dynamic or standard mode, but there are still a few things to nitpick. In terms of image quality from HD signals, the colours are slightly skewed – there’s a dominance of cooler blue tones and a lack of red. This makes the image seem a bit too cool.

A similar effect is noticeable in 4K content, but it’s more pronounced there. The excessive exposure of blue tones and lack of red makes the image appear distinctly cold. However, the biggest issue with this TV isn’t the colours themselves but the way brightness is managed. The unit we tested slightly increased brightness compared to the reference value. The result of this is indeed better visibility of details, but at the cost of significantly lighter blacks – which makes the entire image seem more "flat."

A similar phenomenon was observed in the 4K signal – the slightly inflated curve at the beginning of the EOTF graph indicates that the TV has a tendency to overexpose certain scenes. Fortunately, this effect can be improved through professional calibration, which we will discuss in the next point.

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.

The results we achieved after calibrating the Hisense S7NQ are really very good. Thanks to the calibration, we managed to eliminate excessive blue tone exposure and deficiencies in red with HD signals. A similar, albeit slightly weaker effect was also achieved with 4K HDR content. Brightness management in HD materials has also improved – the television no longer struggles with brightening the image "overall".

However, there are things that cannot be circumvented. The character of the EOTF curve has hardly changed, and the lack of local dimming means that the smallest elements on the screen will always be slightly overexposed. You just have to come to terms with this when choosing a television with a similar type of backlighting. Nevertheless, the final effect is very good and should fully satisfy the vast majority of users.

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.

Equally important is how the television handles tonal transitions with a poorer signal – for example, in older films, on television, or on YouTube. Unfortunately, despite the presence of the “Smooth and Gradient Picture” feature, which was supposedly meant to improve this aspect, its functionality is really poor. It’s barely noticeable that it has any real impact on the visibility of colour transitions.

The image scaling is also disappointing. Yes, you can see that the television is trying to “pull up” the quality, but the end result is far from ideal. The image often appears slightly jagged, which is particularly noticeable in the example of tree branches in the background. Additionally, the Hisense S7NQ has a clear tendency to crop the image at lower resolutions, which could result in missing subtitles in the news or finer details in the image.

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.

When it comes to motion fluidity, the television performs really well. Although the S7NQ was primarily designed for displaying static elements – such as images – the manufacturer has used a panel with a refresh rate of 144 Hz. As a result, sports or games look really good on it.

For content that is not recorded at a high frame rate, the manufacturer has provided two features that allow you to adjust the picture to your own preferences. “Motion blur reduction” and “blur” operate on a 10-point scale, enabling a choice between a more cinematic image – with characteristic frame jumps – and a smooth effect reminiscent of a “soap opera.” How to set this up? That’s a personal choice – we leave the decision to you.

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.

Even though the S7NQ is an "image" type television, you can actually play games on it. Really. It has practically everything (except for HGiG mode) that a modern gaming television needs. The 144 Hz panel and two full HDMI 2.1 ports allow for seamless connection of two consoles, such as the PlayStation 5 or Xbox Series X/S.

The television supports Automatic Low Latency Mode (ALLM) and Variable Refresh Rate (VRR) without any stutters or issues. It also handles high frame rates at lower resolutions without any trouble. A shoutout to Hisense for the very attractive Game Bar – it displays all available image options, and additionally, we have the ability to enlarge the minimap or turn on the crosshair (because sometimes someone might actually want to "aim" 😉).

The only missing element – as we mentioned earlier – is the lack of proper implementation of HGiG mode. This is the feature responsible for automatically setting the image in games as the developers intended. It’s a shame because it's the only thing that separates the Hisense S7NQ from being a full-fledged gaming "monster".