Samsung S85D vs SAMSUNG S90F (WOLED)

Brightness is a key parameter in televisions, and the S85D Samsung model offers levels comparable to other OLEDs from a few years ago. Although it does not impress in this regard, its enormous advantage is the very competitive price. A peak brightness of 600 nits ensures good image quality in HDR conditions, giving users a taste of cinematic experiences in the comfort of their home. However, as with many budget OLED models, the biggest issue is very bright, full-screen scenes – in such moments, like the final scene from the film “The Meg,” the television can lose even half of its brightness, which is noticeable compared to more expensive OLED models. Despite this, the television offers impressive coverage of the DCI-P3 colour palette at 99%, allowing for vibrant and accurate colours to be displayed.

Does the S90F handle not only black, but also bright parts of the image? Definitely yes. Tales of OLEDs as “dark screens” can slowly be regarded as a myth. The Samsung S90F, like the LG C5 based on a very similar panel, achieves brightness exceeding 1000 nits. This is a value entirely sufficient to enjoy impressive and dynamic HDR imagery – both in films and series. Most of the scenes we tested look superb, with well-defined highlights and high contrast. Of course, OLED technology still has its limitations – in very bright, full-screen sequences, such as the test pattern from the film The Meg (picture 5), the television may noticeably dim the image. However, it should be emphasized that such scenes are rare. It can be considered that the HDR effect is good enough that even mid-range OLED models like the S90F can provide a cinematic experience in the home living room.

The Filmmaker mode on the Samsung S85D does offer quite good factory settings, but it is not free from errors, particularly evident in colour reproduction. The white balance chart 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 hue that can affect the perception of realistic scenes. The Color Checker test clearly shows that the colour samples deviate from expected values – for HD material, the colours can be overly saturated, with a noticeable shift towards green, which is also evident in the white balance chart. Conversely, for 4K HDR content, the colours appear too dull, lacking depth, making the image less appealing and natural. 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.

As for brightness, the gamma chart for HD content looks quite good; however, there is a noticeable jump at the end, exceeding a value of 2.4. While this is not a major issue in most scenes, in more demanding sequences it may affect the clarity of bright details. For 4K content, the EOTF curve, responsible for delivering brightness, turns out to be problematic. The initial part of the chart shows a small jump. This phenomenon can result in excessive boosting of brightness in the brightest areas of the image, leading to 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.

The Samsung S90F, like most modern televisions, offers many picture modes, but – in line with our testing tradition – we assessed it in the best one, which is the Filmmaker mode. This way, the image looks significantly more natural than in the default, often oversaturated settings. It was neither overly saturated nor artificially muted – just closer to what should be seen. Of course, "more correct" does not mean "ideal". Unfortunately, our S90F unit had considerable issues with white balance, especially in the blue range, resulting in a slightly yellowish filter being applied to most scenes. Someone might say it looks more "cinematic" – because it is warmer – but let's not kid ourselves, George Lucas did not film Star Wars in sepia 😉 (you will find the comparison with the scene as always below).

Additionally, in HDR materials, there was a noticeable issue with brightness management. The EOTF curve showed a clear "spike" in brightness – the television brightened the image more than it should have, which made some effects look overly intense and diverged from the reference. Fortunately, some of these problems can be eliminated through professional calibration – you will read about its effects later in the review.

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

The brightness characteristics also benefited from the calibration – it is now more vivid and precise. The gamma, although fairly good previously, has become even more stable, providing a deeper, more natural image. The EOTF curve has been aligned, allowing details in dark areas to be more visible and the contrast more balanced. With all these improvements, the television delivers an image close to reference quality, greatly enhancing the enjoyment of watching films and HDR content.

After calibration, we managed to eliminate practically all the previously mentioned errors. Older films in SDR quality finally look as they should – without the sepia effect or artificial aging of the image. The atmosphere of the classics returns to its rightful place (you’re welcome, Star Wars fans), and the colours no longer resemble an Instagram filter.

One of the key changes was also the improvement of brightness characteristics in HDR content. We managed to control the EOTF curve in almost a reference manner. Yes, the most demanding users may spot minimal deviations in brightness, but honestly – most viewers won’t even notice that. And it's no wonder, because the vast majority of errors are below a ΔE value of 3, which is below the threshold of visibility. After calibration, the S90F (WOLED) truly becomes an excellent display – one that provides nearly perfect picture quality.

Samsung S85D performs excellently in scaling images and smoothing tonal transitions. Like in other Samsung models, the television offers three noise reduction modes: off, standard, and high. Although it effectively improves gradations, 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, which is lost after smoothing. Removing the grain can make the image look too sterile and smooth, which detracts from the charm of the original film material. When it comes to scaling images, the Samsung S85D handles lower resolution content beautifully – the model in the picture and the branches in the background were displayed correctly, with no major issues with edge aliasing. The only noticeable drawback is the presence of overscan, which can sometimes cut off parts of the image, which may not please everyone.

Digital Image Processing in the S90F:

Fortunately, Samsung, as in most of its models, effectively manages the unwanted posterisation effect in the S90F. The feature responsible for this aspect is noise reduction, which does a decent job of smoothing tonal transitions and eliminating unnatural colour connections – of course, within its limitations. Unfortunately, it operates rather aggressively, so using it comes with compromises. In addition to improving gradation, it can also remove film grain or gently soften facial features. In this case, the choice is yours – do you prefer a more "clean" image, or do you want to preserve the original texture of the material?

Image Scaling in the S90F:

In this year's model, Samsung implemented its own AI processor – NQ4 Gen3, which does quite well with upscaling. In our test scenes, the television effectively "pulled up" lower quality towards artificial 4K – the image was more pleasant to view, and the differences in sharpness between native and scaled content were minimal. Unfortunately, behind all this AI marketing facade lies a certain shortcoming. The S90F struggles with overscan. If you reach for truly archival materials – e.g. a VHS tape of your parents' wedding – you must expect that the lower part of the image may be cut off. The image adaptation function to resolution simply does not work here as it should.

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

The S90F really handles motion excellently – after all, it’s an OLED with a 144 Hz panel, so sports and games look absolutely stunning on it. The image is fluid, clear, and there’s no room for any ghosting or blurring that sometimes plagues cheaper LCDs.

The television is also equipped with motion smoothness settings, allowing you to customise everything to your preference. We have motion blur reduction and judder reduction – you can set it so that the image is super smooth (even to that soap opera effect), or more cinematic, with the classic 24-frame 'choppiness'. The choice is yours; Samsung doesn’t impose anything.

Samsung S85D OLED is an excellent choice for gamers, thanks to its many modern features that facilitate and enhance gameplay. The television has four full-bandwidth HDMI 2.1 ports, allowing you to connect the latest consoles without worrying about image quality or frame rate limitations. 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 television takes care of ensuring a fast response time, 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 the number of frames generated by the console or computer, eliminating screen tearing and stuttering. This is particularly useful in dynamic games where the frame rate can fluctuate. Auto Motion Plus Game is a feature that Samsung has introduced with gamers in mind, and it is worth appreciating. With it, the image in games becomes smoother – 30 frames per second look like 45, and 60 Hz gains in fluidity, creating an effect close to 90 Hz. At the same time, there is no significant increase in input lag, which remains below 25 ms, making this feature stand out among others available on the market. Gamers can enjoy a smoother image without worrying about a decline in responsiveness.

Samsung has also ensured something extra – the television has a built-in Xbox Game Pass app, which means you can play in the cloud without needing to own a console. This is a great solution for those who want to enjoy gaming without investing in additional hardware. All you need is internet access, and you have a huge library of games at your fingertips. This makes Samsung S85D a fantastic choice for both casual gamers and those who are more advanced.

When it comes to gaming features – the S90F has absolutely nothing to fault. Aside from the lack of Dolby Vision, which is already the norm for Samsung. The television operates at 144 Hz, has four HDMI 2.1 ports, so you can easily connect more than one console or PC. Onboard, we also find the Game Bar – a practical tool that allows you to quickly glance at picture settings, VRR status, ALLM mode, and other useful options. Game Motion Plus also deserves a mention – Samsung's proprietary motion enhancer that is the only one truly functioning sensibly in games. The image appears smoother, but without any artificial effects or slowdowns.

It is also worth mentioning the HGiG feature, which – much to our slight surprise – works correctly. We're mentioning this because Samsung clearly broke something in one of the last updates, and in some models, the option responsible for HGiG simply... disappears from the menu. Setting it up becomes practically impossible. Fortunately, our S90F unit did not have this issue, but the situation is dynamic, so it's worth keeping this in mind and regularly checking for updates and information from the manufacturer.