Samsung S85D vs Samsung QN85F

Brightness is a key parameter in televisions, and the S85D Samsung model offers a level comparable to other OLEDs from a few years ago. Though it doesn't impress in this regard, its huge advantage is a very competitive price. A peak brightness of 600 nits provides good image quality in HDR conditions, giving users a taste of cinema-like experiences in the comfort of their home. However, as with many budget OLED models, the biggest problem is very bright, full-screen scenes – in such moments, like the final shot from the movie "The Meg," the television can lose as much as half of its brightness, which is noticeable compared to more expensive OLED models. Despite this, the television offers an impressive DCI-P3 colour gamut coverage of 99%, allowing for the display of vibrant and accurate colours.

Although more than twice the number of dimming zones compared to its predecessor did not result in a spectacular leap in black levels and contrast, we definitely felt it in the HDR effect itself. The QN85F is up to 50% brighter than last year's model and it makes a huge impression in dynamic scenes. Peak brightness can reach almost 1700–1800 nits, which is an impressively high result for this Mini-LED class. The best part is that almost regardless of the scene being watched, the HDR effect remains strong and vibrant. In four out of five test scenes, brightness was maintained around 1000 nits, a level that in most cases allows the viewer to feel the true magic of this format. Of course, in scene number 4 from the film Sicario 2, the limitations of Mini-LED technology become apparent – the brightness of the helicopter's subtle light drops to around 500 nits. This isn't an outstanding result, but it is still much more acceptable than last year's model. Samsung deserves applause for the dramatic improvement in brightness with the QN85F compared to its predecessor. However, there's a certain trend visible in this year's televisions – the manufacturer has worsened colour gamut coverage. Although the QN85F has a QLED panel, its result at around 90% DCI-P3 is average, and in the most demanding films, it may lead to less vibrant colours than its predecessor. Despite this drawback, the overall HDR effect is at an excellent level and truly makes a big impression in this class of devices.

The Filmmaker mode on Samsung's S85D does indeed offer the best factory settings, but it is not without flaws, particularly evident in colour reproduction. The white balance graph for HD and HDR content shows clear issues – both red and blue colours are significantly weakened, leading to a dominance of green. The result is an unnatural yellowish tint that can affect the perception of realistic scenes. The Color Checker test clearly shows that the colour samples deviate from the expected values – for HD materials, the colours tend to be overly saturated, with a marked shift towards green, which is also evident in the white balance graph. Conversely, for 4K HDR content, the colours appear too dull and lacking in depth, causing the image to lose its appeal and naturalness. This effect is particularly noticeable in delicate scenes where colour precision plays a key role, which can be disappointing for discerning viewers who expect faithful reproduction of details and colour intensity.

When it comes to brightness, the gamma graph for HD content looks quite good; however, there is a clear spike at the end, exceeding the value of 2.4. Although this is not a major issue in most scenes, in more demanding sequences it can affect the clarity of bright details. For 4K content, the EOTF curve, responsible for rendering brightness, proves to be problematic. The initial part of the graph shows a slight spike. This phenomenon can result in excessive boosting of brightness in the brightest areas of the image, leading to a loss of detail in very bright scenes.

Although Samsung S85D offers quite decent factory settings, especially in Filmmaker mode, it is worth considering manual adjustment of settings to improve some imperfections, particularly in colour reproduction.

Samsung QN85F offers several preset picture modes, but out of the box, the television starts in 'Eco' mode. We could almost end the discussion here, as using this setting on such a model makes little sense – the picture is washed out, unpleasant, and far from what we expect from a television of this class. Therefore, we conducted our tests in the best available mode, which is Filmmaker mode. Its purpose is to faithfully reproduce what the directors saw during filming, and indeed, it is the setting that performs best among all factory options. However, this doesn't mean it's free from flaws.

Both in SDR and HDR, the QN85F prominently highlighted warm colours. This was due to a lack of white balance, where the blue colour was noticeably absent. Additionally, the image was sometimes overexposed – both the gamma brightness characteristic and the EOTF curve indicated that the television has a tendency to blow out scenes. In SDR, colour reproduction errors (Delta E around 4–5) were still acceptable, but in HDR, the inaccuracies became quite significant and clearly deviated from what the creators intended to show us. Fortunately, Samsung provides a wide range of calibration tools in its televisions, so – as always – we proceeded with professional calibration to see how much could be improved.

After calibration, the Filmmaker mode on Samsung S85D really impressed. The white balance, regardless of the type of content, has improved significantly, resulting in more natural colours. The Color Checker test shows that colour reproduction errors are now minimal and rarely exceed acceptable values, which indicates precise colour reproduction. The factory colour representation left a lot to be desired, but now the situation has significantly improved – colours are natural, accurate, and look as if they have been precisely rendered according to the creators' intentions. This is a huge step forward compared to earlier generations, where colours were often distorted or too intense.

The brightness characteristics have also benefited from calibration – it's now more vivid and precise. The gamma, although reasonably good before, has become even more stable, providing a deeper, more natural image. The EOTF curve has been flattened, allowing details in dark areas to be more visible, and the contrast is better balanced. Thanks to all these improvements, the television delivers an image close to reference quality, which definitely enhances the enjoyment of watching films and HDR content.

After calibrating the movie mode, we managed to tame the colours in both modes almost to perfection – most of them did not exceed an error value of 3, which is the threshold of perceivability by the human eye. The image became more natural, fuller, and at the same time free of the overexposure that was noticeable right after taking the television out of the box. This demonstrates the significant potential that lies within the QN85F and how well it responds to precise settings. However, this does not change the fact that certain technological barriers cannot be overcome. Despite the enormous benefits of calibration, there are still limitations to the panel itself. Although the number of dimming zones has doubled compared to its predecessor, the algorithms controlling the backlighting can manipulate brightness in their own way. Sometimes this leads to slight colour inaccuracies or subtly visible halo effects around bright objects. Nonetheless, the viewing experience after calibration is really enjoyable and shows how good a screen the QN85F can be if we just take a moment for the right settings.

Samsung S85D does a great job of scaling images and smoothing tonal transitions. Like other Samsung models, the television offers three noise reduction modes: off, standard, and high. While it improves gradation well, it unfortunately also removes film grain, which many viewers desire to give the image a cinematic character. This grain often adds authenticity and a certain rawness to films that is lost once it is smoothed out. Removing the grain can make the image appear too sterile and smooth, which takes away some of the charm of the original film material. When it comes to image scaling, the Samsung S85D excels at displaying lower resolution content – the model in the photo and the branches in the background were shown correctly, without major issues with jagged edges. The only noticeable downside is the presence of overscan, which can sometimes cut off parts of the image, which may not appeal to everyone.

Although the native tonal transitions on the QN85F perform excellently with 4K content, we don't always have to deal with the highest resolution material. This is where how the TV handles upscaling and digital image processing becomes crucial. This process is managed by Samsung's proprietary processor – AI NQ4 Gen2. In practice, it works very effectively. If visible colour banding or other undesirable phenomena appear on the screen, for instance with content from YouTube, they can easily be smoothed out using the "noise reduction" feature. Set to medium, it improves tonal transitions while not overly blurring desired details. However, it should be noted that – like in most Samsung TVs – this feature heavily interferes with film grain. Therefore, during movie screenings, it’s wise to use it cautiously to avoid losing the natural character of the image.

The upscaling itself looks very good. Test materials in lower resolutions were displayed sharply and clearly, with a lot of details. The only drawback remains the issue with overscan, which cuts off the edges of the screen. In most situations, this isn't noticeable, but with very old materials below HD quality, there may be instances where a fragment of the image from the left side gets slightly cut off.

As befits an OLED television, Samsung S85D offers excellent motion fluidity. Equipped with a 120 Hz panel and a fast response time, the TV delivers very smooth playback of dynamic scenes without visible blurring. For movie enthusiasts, there is a feature called "Picture Clarity Settings," which allows for adjusting the image smoothness to individual preferences on a 10-point scale. Motion blur reduction enhances the sharpness of fast-moving objects, while motion smoothing eliminates the "judder" effect for a smoother motion. This way, every user can set the appropriate level of clarity that best suits their taste, from a more cinematic effect to clearer, smoother movements.

Motion blur and fluidity of movement in the QN85F is a topic worth discussing further because the TV is equipped not with a standard 120 Hz panel but with a 144 Hz one. The extra hertz will mainly be appreciated by PC gamers, but the very fact of having such an option can be seen as a nice addition and a sign of the times – it's hard to complain about the trend of faster panels since in practice, each of us would like the picture to be as smooth as possible. However, the most important thing is how the TV performs with typical 120 Hz refresh rates – in the case of consoles, sports, or films recorded at 24 or 30 frames per second. And here, the QN85F performs really well. In films, you can easily adjust the character of the picture thanks to the "image clarity" feature, where you'll find two control sliders. Key in the case of screenings is the one responsible for reducing motion judder. Lower values give the image a more cinematic character with preserved "frame-ness," while higher values lead to strong smoothing, reminiscent of television theatre.

Samsung S85D OLED is an excellent choice for gamers thanks to its many modern features that make gameplay easier and more enjoyable. The TV has four full-bandwidth HDMI 2.1 ports, allowing you to connect the latest consoles without worrying about limitations in image quality or frame rates. This means support for 4K resolution at 120 Hz, which is ideal for modern titles. Additionally, the Samsung S85D has an ALLM (Auto Low Latency Mode) feature that automatically activates low latency mode when it detects a gaming device. This means you don’t have to manually switch settings – the TV takes care of ensuring fast response times, which is crucial in games where every second counts.

The VRR (Variable Refresh Rate) feature and G-Sync support are additional elements that make gameplay smoother. VRR adjusts the refresh rate to match the frame rate generated by the console or computer, eliminating screen tearing and stuttering. This is especially useful in fast-paced games where the frame rate can fluctuate. Auto Motion Plus Game is a feature that Samsung introduced with gamers in mind, and it’s worth appreciating. It makes the picture in games smoother – 30 frames per second looks like 45, and 60 Hz gains in smoothness, giving an effect close to 90 Hz. At the same time, there’s no significant increase in input lag, which remains below 25 ms, making this feature stand out compared to others available on the market. Gamers can enjoy smoother visuals without worrying about reduced responsiveness.

Samsung has also thought of something extra – the TV has a built-in Xbox Game Pass app, which means you can game in the cloud without needing a console. It’s a great solution for those who want to enjoy gaming without investing in additional hardware. All you need is an internet connection, and you have a massive library of games at your fingertips. This makes Samsung S85D an excellent choice for both casual and more advanced gamers.

Samsung QN85F makes a really great impression in terms of features for gamers. It has four HDMI 2.1 ports, so we can easily connect several devices at the same time. There's also Variable Refresh Rate (VRR) to prevent screen tearing, as well as Auto Low Latency Mode (ALLM), which allows the TV to automatically switch to the appropriate settings when we start the console. Additionally, it supports refresh rates of up to 144 Hz – something that PC gamers will particularly appreciate, but the very fact that such an option is available shows that Samsung is committed to full support for gamers. The Game Bar panel also deserves praise. It provides a quick overview of the most important parameters – from frame count to refresh rate mode, and even shortcuts to picture settings. Instead of digging through the entire menu, everything is at our fingertips, which proves to be really convenient in practice. However, the most interesting addition is the Game Motion Plus feature. It is nothing more than motion smoothing, adapted for the gaming world. When it’s turned on, the image becomes smoother, sometimes looking as if we’re getting several more frames, and importantly – the response delay doesn’t increase enough to interfere with gameplay. This is a solution that truly sets Samsung's 120Hz TVs apart from the competition.

[UPDATE] We have updated our tests of Samsung TVs from the 2025 model year due to the release of software version 1131, which restored the crucial gaming feature HGiG.

The only significant downside remains the lack of proper support for HGiG. This is a standard responsible for accurate tone mapping in HDR games, ensuring that brightness and contrast are displayed as intended by the creators. Without HGiG, we have to set brightness manually, which doesn’t always yield perfect results. This feature was available in previous models, but disappeared from the QN85F after one of the updates. We hope that Samsung will quickly fix this issue, and we will be monitoring to see if they succeed.