LG OLED G4 vs Hisense S7NQ CanvasTV

The LG G4 excels in delivering an incredibly vivid HDR experience, positioning it as one of the best models in its class. Equipped with second-generation Micro Lens Array (MLA) technology, it achieves a remarkable peak brightness of 1474 nits in real-world scenes. While it may not match Mini LED-backlit LCD TVs in full-screen white scenes, the overall performance is outstanding. The fine details in HDR content shine brightly, a distinct advantage of OLED technology over non-OLED displays. With this impressive brightness and wide DCI-P3 colour gamut coverage, HDR content is brought to life with unmatched engagement and immersion.

When it comes to the brightness of the television and how it handles bright elements while watching movies, it is just average—similar to contrast. The average brightness level of the Hisense S7NQ is around 500 nits. This is a value that allows you to feel the beginnings of true HDR, but it is definitely too little to speak of outstanding effects. However, the television deserves praise for color gamut coverage—movies look very colorful and vibrant. With the use of PFS LED (QLED) coating, the device can cover over 90% of the DCI-P3 color gamut and over 72% of the wider BT.2020 gamut. For a television in this class, these are truly very good results.

Before calibration, the "Filmmaker" mode on the TV had a noticeable red and green colour dominance, resulting in a warm-yellow hue across both SDR and HDR content. This warm tone, typical of modes like "Cinema" and "Filmmaker," led to a yellowish cast that was evident when switching from the "Standard" mode.

Looking at the brightness characteristics, the Gamma chart showed decent performance for mid-tones and bright whites, but it struggled with the darkest details, which tended to merge into a black blob. HDR content, as represented by the EOTF curve chart, displayed a drop in contrast due to excessive brightness, which overshadowed fine details and negatively affected the overall image quality. Additionally, the "ColourChecker" chart revealed that colours were under-saturated, contributing to a less accurate and vibrant visual experience.

This provided a good foundation to build on, but calibration was needed to bring out the full potential of the "Filmmaker" mode and address these issues.

Let's now check how the Hisense S7NQ CanvasTV performs in color reproduction in the best factory mode, which is Filmmaker. Right from the start, it is evident that it is definitely better than in dynamic or standard mode, but there are still a few things to nitpick. In terms of image quality from the HD signal, the colors are slightly inaccurate – there is a dominance of cooler shades of blue and a lack of red. Because of this, the image appears somewhat too cool.

A similar effect occurs with 4K content, but it is more noticeable there. The excessive exposure of blue tones and the lack of red make the image seem distinctly cold. However, the biggest issue with this television is not the colors themselves but rather the way brightness is managed. The tested unit slightly boosted the brightness compared to the reference value. The result is indeed better visibility of details, but at the cost of significantly brightened black – which makes the entire image seem more "flat."

A similar phenomenon was noticed in the 4K signal – the slightly inflated curve at the beginning of the EOTF graph shows that the television has a tendency to excessively expose certain scenes. Fortunately, this effect can be improved with professional calibration, which we will discuss in the next point.

The manufacturer has been offering extensive support for the calibration process in its LG televisions for many years. Therefore, we used 2- and 20-point grayscale adjustments along with an advanced CMS (Colour Management System) to optimise the display. As shown, the calibration procedure greatly improved each parameter. The results included studio-quality colour reproduction, enhanced detail in dark areas, corrected brightness characteristics, and accurate colour saturation. This led to a near-perfect match with the reference image—the one the film director saw on the preview monitor. It’s also worth mentioning that LG G4 televisions are unique in offering even deeper image adjustments through 3D LUT matrices, a feature primarily suited for post-production or graphics studios.

The results we achieved after calibrating the Hisense S7NQ are really very good. Thanks to the calibration, we were able to eliminate the excessive exposure of blue tones and the lack of red in the HD signal. A similar, although slightly weaker effect was also achieved with 4K HDR content. Brightness management in HD material has also improved – the television no longer has problems with overall image brightness issues.

However, there are things that cannot be overlooked. The characteristic of the EOTF curve has practically not changed, and the lack of local dimming means that the smallest elements on the screen will always be slightly overexposed. One simply has to accept this when choosing a television with a similar type of backlighting. Nonetheless, the final result is very good and should fully satisfy the vast majority of users.

The LG G4 does not perform well with materials rich in tonal transitions, leading to a pronounced posterization effect. However, the manufacturer has included a smoothing system called "Gentle Gradation," with three levels: Low, Medium, and High. These settings are effective at smoothing bright colours, though less so for darker tones. It is recommended to use the Low setting, as the higher levels can distort the director's intentions by removing film grain.

When it comes to upscaling lower-quality material, the television's performance is quite good, delivering a sharp and clear image. However, attention should be paid to the jagged edges of fine details and the occasional halo effect around figures. This occurs due to the sharpening imposed by the LG G4, even when the lowest setting is selected (0). This is a noticeable change from the LG G3, which did not apply such strong sharpening, even at setting 0.

It is equally important how the television handles tonal transitions on a poorer signal – for example, in older movies, television, or on YouTube. Unfortunately, despite the presence of the "Smooth and Gradient Picture" feature, which was supposedly intended to improve this aspect, its performance is truly lacking. It is barely noticeable that it has any real impact on the visibility of color transitions.

Image scaling also performs poorly. Yes, one can observe that the television tries to "stretch" the quality, but the final effect is far from ideal. The image often appears slightly jagged, which is especially noticeable in the case of tree branches in the background. Additionally, the Hisense S7NQ has a clear tendency to crop the image at lower resolutions, which can cause us to miss captions in the news or finer details of the image.

The LG G4 offers a maximum refresh rate of 144 Hz, achievable when connected to a powerful PC. For most users, however, the TV operates at a maximum of 120 Hz, ideal for watching sports or other content with fast motion. To improve image fluidity, the television includes the "TrueMotion" motion smoothing system, which features two separate sliders: De-Blur (for the sharpness of moving images) and De-Judder (for judder reduction). These sliders allow users to adjust the level of smoothing between 0 and 10, ensuring everyone can find the ideal setting.

With a response time of 0.78 ms, the LG G4 delivers exceptionally clear images, outperforming LCD televisions, which can have much slower response times. This results in no trailing blur behind moving objects, as shown in the "UFO Test." The TV also provides precise control over motion smoothing, which is especially beneficial during fast-paced video game sequences. Thanks to OLED technology, the G4 eliminates ghosting, ensuring a crisp and clear image even during the most dynamic sports or action scenes.

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

For materials that are not recorded at a high frame rate, the manufacturer provided two features that allow you to adjust the picture to your own preferences. "Motion blur reduction" and "motion smoothing" operate on a 10-level scale, allowing you to choose 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 matter – we leave the decision to you.

The LG G4 TV supports all the features encompassed by the HDMI 2.1 standard, making it a gaming powerhouse. During testing, every feature activated seamlessly, ensuring a smooth experience for both console gamers and PC users. Notably, the HGIG mode (HDR Gaming Interest Group) is implemented correctly, allowing games mastered to brightness levels higher than the TV’s maximum luminance to map tones accurately, preserving the game’s original visual integrity.

A notable highlight is the dedicated GameBar, which can be accessed at any time to quickly check or adjust game settings. More importantly, enabling VRR (Variable Refresh Rate) does not compromise contrast—a common issue in TVs with local dimming or Mini LED backlighting. This is thanks to the OLED panel’s self-emissive pixels, which maintain consistent contrast. However, a slight grey flicker may appear when VRR is enabled, though this is standard across OLEDs.

In summary, the LG G4, like most OLED TVs, is ideal for gaming and online competitions. Its HDMI 2.1 ports offer a full 48 Gbps bandwidth, supporting features such as VRR, ALLM (Auto Low Latency Mode), G-Sync, FreeSync, and HDR Dolby Vision gameplay, ensuring an exceptional gaming experience.

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

The TV supports automatic game mode (ALLM) and frame synchronization (VRR) without any stuttering or issues. It also handles high frame rates at lower resolutions without a hitch. We must commend Hisense for the very attractive Game Bar – it displays all available picture options, and additionally, we have the ability to zoom in on the mini-map or enable a crosshair (because sometimes someone might actually want to "aim" 😉).

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