Samsung QLED Q80D vs Hisense S7NQ CanvasTV

In the context of HDR, the Samsung Q80D television delivers impressive brightness performance in tested movie scenes, achieving levels between 600 to 900 nits when the frame is filled with light. This brightness enhances the vibrancy of the image and allows users to perceive the differences between HDR and SDR quality. However, challenges arise when small light effects appear against a dark background. For instance, in specific scenes, such as test slide 4 from Sicario 2, there is a noticeable drop in brightness due to the larger size of the dimming zones employed by the television. This limitation, coupled with the local dimming algorithm, affects the TV's ability to accurately display small bright elements on dark backgrounds, leading to a lack of brightness that can diminish the HDR effect, making it appear similar to SDR quality.

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.

In "Filmmaker" mode, which is considered the best out-of-the-box choice, the Samsung Q80D demonstrates solid colour reproduction. However, when viewing SDR content, there is a visible drop at the beginning of the gamma curve, suggesting that details in dark scenes may be less clear, which could detract from the overall viewing experience. While the white balance in SDR content is generally accurate, significant drops in blue at screen coverage above 70% can lead to less natural hues in both bright and dark scenes. Users might notice that some blue elements appear less intense, resulting in a warmer tint to the colour presentation.

For HDR content, the EOTF (Electro-Optical Transfer Function) curve being above the reference line most of the time indicates that the TV may struggle to accurately reproduce brightness and detail in the brighter areas of the image, which can be less than ideal for viewers. Additionally, there is a notable drop at the beginning of this graph, signifying the TV's difficulty in reproducing brightness in dark areas; this limitation is apparent in contrast and black tests, where several scenes fail to showcase the TV's full brightness potential.

Regarding white balance, the initial performance on the chart is promising, however, a sharp drop in red, coupled with a significant rise in blue, may lead to inaccuracies in reproducing certain skin tones and other key colours. This issue can be particularly noticeable in scenes where colour details are essential, potentially affecting the viewer's overall experience.

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.

After calibration, the Samsung Q80D’s Movie mode offers a noticeable improvement over the out-of-the-box settings. Samsung provides an advanced suite of calibration tools, including 2- and 20-point grayscale adjustments as well as a CMS (Colour Management System), allowing for precise control over both SDR and HDR content. The calibration greatly enhances white balance, although minor errors remain in HDR content toward the end of the graph. Contrast has also improved, and the gamma curve for SDR content now aligns well with expected levels.

In HDR, the EOTF curve initially appears to sit ideally, however, closer examination reveals all lines are slightly above the reference line, a phenomenon that may be seen as the TV "enhancing" brightness for added appeal. This effect, however, comes at a cost: while the screen may appear brighter overall, it sacrifices detail in darker areas, leading to a loss of subtle textures in shadowed scenes. As a result, scenes with deep shadows or dark elements may lose some finer visual details that would enhance the viewing experience.

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.

Performing admirably with low-quality content, the Q80D’s noise reduction feature uses gentle gradation to smooth out unwanted image disturbances. However, this technique can also soften certain details, like film grain, that some viewers might prefer to retain. For those who appreciate a more polished and smoother image, particularly with lower-resolution material, this becomes a significant advantage.

In terms of image scaling, the Q80D stands out, enhancing both quality and detail for lower-resolution media. Advanced processing technology reduces artefacts and maintains clarity, as seen in the clean edges and absence of fraying in elements like branches during test scenes. This capability makes it an excellent option for viewers seeking an enhanced and comfortable viewing experience, even with less-than-ideal content quality.

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.

Motion smoothness and blur reduction are standout features on the Samsung Q80D TV, thanks to its 120Hz panel and impressive response time. Users have two customisation options to enhance smoothness: "Motion Blur Reduction," adjustable on a 10-step scale for refined control, and "Blur Reduction," which works particularly well at higher refresh rates, enhancing clarity in fast-moving scenes. In the UFO test, the panel performs without trailing or forward-cloning effects, indicating a lack of overshoot and delivering clear, sharp visuals during rapid motion.

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 Samsung Q80D is a fantastic choice for gamers, offering a range of advanced gaming features that are rare in this price category. Equipped with four HDMI 2.1 ports, it enables key functionalities like ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate), and 120Hz support at 4K resolution, ensuring smooth and responsive visuals, essential for fast-paced gaming. The TV also supports HGIG (HDR Gaming Interest Group) for optimal HDR display in games and includes a Game Bar for quick access to gaming settings. Gamers with Nvidia graphics cards will appreciate the G-Sync support that eliminates screen stuttering and tearing.

Although it lacks Dolby Vision support, which may disappoint those seeking that HDR format, Samsung has partnered with Microsoft since 2022 to provide the Xbox Game Pass app, enabling cloud gaming access to a wide library of games without a console.

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."