SAMSUNG OLED S90F (WOLED) vs Samsung R85H / R86H

Does the S90F handle not only dark scenes but also bright parts of the image? Definitely yes. Stories about OLEDs as "dark screens" can slowly be regarded as a myth. The Samsung S90F, similar to 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 images – both in movies and series. Most of the scenes we tested look stunning, with well-defined lights and high contrast. Of course, OLED technology still has its limitations – with very bright, full-screen sequences, such as the test card from the movie The Meg (5th image), the TV can noticeably dim the image. However, it's worth noting that such scenes are quite rare. One can say 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.

If it’s about brightness, the R85H performs really well. In most of our test scenes the TV reaches around 800 to 900 nits, and with larger bright elements it can break 1000 nits. These aren't, of course, levels on par with the most expensive Mini-LEDs, but they're more than enough for watching movies and TV series in HDR, and the effect can be quite noticeable. The problem shows up again in more demanding scenes where there's a small bright element on a very dark background. Here the TV can significantly reduce its brightness so it doesn't illuminate too much of the screen. In our measurements such small highlights dropped to around 200 to 250 nits, so you can see that a limited number of local dimming zones combined with the specific behavior of the algorithm has its consequences. Fortunately, it's not something that bothers you all the time. In typical mixed HDR scenes the R85H looks good and can deliver appropriate image dynamics. You just can't expect the same punch from very small points of light as you get with TVs that have many more zones or with OLEDs.

Samsung S90F, like most modern TVs, offers many picture modes, but – in line with our testing tradition – we checked it in its best one, which is the Filmmaker mode. As a result, the image looks much more natural than in the default, often oversaturated settings. It was neither overly saturated nor artificially subdued – just closer to what you should see. Of course, "more correct" doesn’t mean "perfect." Our S90F sample unfortunately had significant issues with white balance, particularly in the blue color range, resulting in a slightly yellowish filter applied to most scenes. Someone might say that it looks more "cinematic" – because it's warmer – but let's be honest, George Lucas didn't film Star Wars in sepia 😉 (you'll 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 distinct "spike" in brightness – the TV brightened the image more than it should have, making some effects look too intense and diverging from the reference. Thankfully, some of these issues can be eliminated with professional calibration – you can read about its effects later in the review.

In Filmmaker mode our R85H sample performed adequately in SDR, but a few things immediately showed up in the measurements. In the white balance, as brightness increased more red crept in while blue decreased. As a result, the brighter parts of the image had a slightly too warm tint. On top of that, gamma only held to the target value at the start. It then gradually fell, making most of the image a bit too bright. The combination of the two also affected colors — errors grew especially in the brighter, more saturated samples. It didn’t look bad, but for Filmmaker mode we expected a bit more accuracy. Interestingly, in HDR our unit handled things noticeably better. White balance was much more even and, for most of the range, the individual RGB components stayed close together. Only in the brightest areas did red begin to fall short, causing the white point to shift slightly. The EOTF curve looked very good, tracking the target luminance values across almost the entire range. That doesn’t mean HDR colors were perfect. The ColorChecker still shows some deviations, particularly in some of the more saturated hues, but the errors are clearly smaller than in SDR.

After calibration, we managed to eliminate almost all the aforementioned errors. Older movies in SDR quality finally look as they should – without the sepia effect or artificial aging of the image. The atmosphere of the classics is returning to its rightful place (you're welcome, Star Wars fans), and the colors 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 an almost reference way. Yes, the most demanding users may notice minimal deviations in brightness, but to be honest – most viewers won't even notice that. And it’s no wonder, because the vast majority of errors are below the ΔE 3 threshold, which is below the visibility threshold. After calibration, the S90F (WOLED) becomes a truly excellent display – one that you can enjoy nearly perfect image quality on.

After calibration the R85H shows it has impressive color reproduction capabilities. It performed best in SDR, where the white balance was brought almost perfectly into line and the gamma stays very close to the target across most of the range. That also translated into very low errors in the ColorChecker, so there's really little to fault here. HDR also shows a clear improvement, although some issues can't be corrected as well. At peak brightness the character of the backlight itself starts to show and the individual components of the white balance begin to diverge. The same goes for the most saturated colors, which don't always land exactly where they should. Despite these limitations, overall the image is significantly more accurate than on the factory settings, and the biggest difference is clearly in SDR. However, there's one thing calibration can't fix. With highly saturated elements, color can subtly bleed onto adjacent bright parts of the image. It's easiest to notice this on white, which can pick up a slight tint from a neighboring hue. It doesn't occur in every scene, but when the content is demanding the effect can be visible. This is more a characteristic of the way the RGB backlight works than an issue with picture settings.

Digital image processing in the S90F:

Fortunately, Samsung, as in most of its models, can effectively deal with the unwanted posterization effect in the S90F. The function responsible for this element is noise reduction, which quite nicely smooths out tonal transitions and eliminates unnatural color joins – of course, within its capabilities. Unfortunately, it works quite aggressively, so using it comes with compromises. In addition to improving gradation, it may 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 care about preserving the original texture of the material.

Image scaling in the S90F:

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

In the R85H, image processing is handled by the Micro RGB AI Processor. The name is new, but in terms of upscaling lower-quality content, the TV’s behavior remains very similar to what Samsung has shown before. And that’s not a bad thing, since the company has handled this aspect quite well for years. Low-resolution material is displayed cleanly, edges don’t become overly soft, and the TV doesn’t try to artificially extract details at any cost. The result is simply balanced, and with regular TV or older recordings the R85H performs as you would expect from a Samsung at this level. The only minor drawback is overscan, which can’t be completely turned off at the lowest resolutions. A separate issue is the additional processing of weaker sources. The R85H can smooth posterization and tidy up heavily compressed footage a bit, but it’s worth stressing that it does so relatively aggressively. At stronger "noise reduction" settings it starts removing not only compression artifacts but also fine details and natural film grain. It’s best to use it only when the material actually needs it.

S90F really handles motion great – after all, it's an OLED with a 144 Hz panel, so sports and games look simply amazing on it. The picture is smooth, clear, and there's no room for ghosting or blurring that sometimes plagues cheaper LCDs.

The TV is also equipped with motion smoothing settings that allow you to tailor everything to your liking. We have motion blur reduction and judder reduction – you can set it up to make the picture super smooth (even to that soap opera effect), or more cinematic, with the classic "choppiness" of 24 frames. The choice is yours; Samsung doesn't impose anything.

R85H has a 144 Hz panel, so motion is really smooth here. Just remember that the extra hertz above 120 will mainly be used when connected to a PC, so in this category we don't treat them as a particular advantage. For movies and TV, what's more important is that the panel is fast enough to provide access to an advanced motion-smoothing feature, "Motion Clarity", which lets us set motion from more film-like to very smooth. The panel's response time is a bit weaker. Because this is a VA panel, fast-moving objects can leave a slight trail. On bright backgrounds that's not very noticeable, but the darker the scene, the more visible the smearing becomes. That's a typical characteristic of this type of panel, and it's easiest to spot in dark scenes.

When it comes to gaming features – we have absolutely no complaints about the S90F. Aside from the lack of Dolby Vision, which is already the norm for Samsung. The TV operates at 144 Hz, has four HDMI 2.1 ports, so you can easily connect more than one console or PC. It also includes Game Bar – a practical tool that allows you to quickly preview picture settings, VRR status, ALLM mode, and other useful options. Game Motion Plus is also noteworthy – Samsung’s proprietary motion smoother, which uniquely works well in games. The image feels smoother without any artificial effects or slowdowns.

It’s also worth mentioning the HGiG feature, which – surprisingly – works correctly. We mention this because Samsung clearly broke something in one of its recent updates, and in some models, the option responsible for HGiG simply... disappears from the menu. Setting it becomes virtually 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 new software versions and information from the manufacturer.

Samsung has been steadily expanding its gamer-focused features for several years, and the R85H really lacks nothing important in that area. The TV supports 4K at 120 Hz, VRR and ALLM, so you can easily take advantage of the capabilities of the PlayStation 5 or Xbox Series X. HGiG also works correctly, so with the right HDR settings on the console games retain proper brightness and you don't unnecessarily lose detail in the brightest parts of the image. The only major omission is Dolby Vision Gaming, which Samsung doesn't support on any of its TVs.

Game Bar is also very useful, a handy menu you can bring up without leaving the game. You can quickly check the frame rate, VRR operation, or change the most important picture-related settings. Samsung also adds a few less obvious features, such as the ability to change the aspect ratio or Game Motion Plus, which can further smooth games running at 30 or 60 fps. Of course, this comes at the cost of higher input lag (around 55 ms), but for slower-paced titles it may be an interesting option for some players.