SAMSUNG S90F (WOLED) vs LG QNED93A / QNED90A

Does the S90F handle not only blacks but also bright parts of the image? Definitely. The stories about OLEDs as "dark screens" can slowly be regarded as myth. The Samsung S90F, like the LG C5 based on a very similar panel, achieves brightness exceeding 1000 nits. This is a value more than enough to enjoy impressive and dynamic HDR images – both in movies and series. Most of the scenes we tested look stunning, 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 card from the movie The Meg (photo 5), the television may noticeably dim the image. However, it should be emphasized that such scenes are rare. It can be said 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.

Although the number of local dimming zones in the LG QNED93A hasn’t directly translated to noticeably better contrast, it’s hard to deny this model one thing – it’s brighter than its predecessor. In synthetic tests, we recorded values around 1400-1500 nits, and more importantly, these results are reflected in real film scenes. In full-screen sequences flooded with whites or bright lights, the screen was able to maintain high luminance, providing a truly decent amazing HDR effect. Unfortunately, where the TV could show true class, that is in scenes requiring precision, all the magic dissipates. The dimming algorithms we mentioned earlier operate aggressively enough that small, bright objects – like distant lights, stars, or the moon – can almost completely disappear. Just look at the test scenes from the film Pan or Sicario 2 (screens 2 and 4) to see how subtle details are dimmed to the limits of their visibility. It’s a pity because a greater number of zones could theoretically translate to significantly better performance. Fortunately, there are also strong points. The QNED93A performs well in terms of colour gamut coverage, achieving around 96% of the DCI-P3 standard. As a result, colours in films look rich and full, and the image doesn’t lose intensity even in more demanding scenes. So, it can be said that the HDR in this model is solid, although the underdeveloped local dimming algorithms hinder its full potential.

Samsung S90F, like most modern televisions, offers many picture modes, but – following our testing tradition – we checked it out in the best one, which is the Filmmaker mode. Thanks to this, the image looks much more natural than in the default, often oversaturated settings. It was neither overly saturated nor artificially dimmed – simply closer to what one should see. Of course, “more accurate” doesn’t mean “perfect”. Unfortunately, our S90F had significant issues with white balance, particularly in the blue color range, resulting in a slightly yellowish filter being applied to most scenes. Someone might say it looks more “filmic” – because it’s warmer – but let’s not kid ourselves, George Lucas didn’t film Star Wars in sepia 😉 (you’ll find a comparison with the scene below as always).

Additionally, in HDR materials, there was an issue with brightness management. The EOTF curve showed a clear “spike” in brightness – the television brightened the image more than it should have, causing some effects to look too intense and deviating from the reference. Fortunately, some of these problems can be eliminated through professional calibration – you’ll read about its effects later in the review.

In film mode (more specifically Filmmaker), the colour reproduction in the QNED93A was relatively accurate, although there were some reservations. In SDR content, the white balance leaned towards warmer tones, resulting in a slight yellowing across the entire screen. Gamma, on the other hand, led to a slight lightening of the image, making it look a bit less natural, especially in scenes that required precise shading (this is evident in the comparison photo). This isn't a problem that immediately stands out to every viewer, but more discerning individuals may feel that the image deviates from the intended aesthetic of the filmmakers. In HDR materials, the situation looked a bit different. The white balance here was quite good, ensuring that whites did not take on pink or unwanted green hues. However, the brightness management turned out to be an issue. An analysis of the EOTF curve revealed that at certain moments, the television could be distinctly too dark where it shouldn't be, losing some details and lowering the realism of scenes. This detracted from the HDR effects, which were theoretically meant to be the most impressive. For this reason, we decided to conduct a calibration.

After calibration, we managed to eliminate practically all the previously mentioned errors. Older movies in SDR quality finally look like they should – without the sepia effect or artificial aging of the image. The atmosphere of the classics is back in place (no thanks needed, 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. Admittedly, the most demanding users may detect minimal deviations in brightness, but honestly – most viewers won't even notice that. And it's no surprise because the vast majority of errors fall below the ΔE 3 value, which is below the threshold of visibility. After calibration, the S90F (WOLED) becomes a truly excellent display – one on which you can enjoy nearly perfect image quality.

After professional calibration, the Filmmaker mode in the QNED93A has improved primarily where it matters most in everyday use. We managed to straighten the white balance and eliminate the yellowish tint in SDR content, which is what we watch most often – television, streaming services, or standard quality movies. As a result, the colours look natural and pleasant, making the overall viewing experience significantly more comfortable. In HDR mode, we also made corrections, but here the biggest issue turned out to be the EOTF curve. Although LG provides some leeway in the settings, the television still controls brightness on its own terms. It's clear that the local dimming algorithms are not fully refined and can ruin the viewing experience by dimming parts of the picture at inappropriate moments. Nevertheless, it’s worth opting for calibration of this model, especially the mode intended for everyday viewing.

Digital Image Processing in S90F:

Fortunately, Samsung, like in most of its models, manages to effectively tackle the unwanted posterisation effect in the S90F. The function responsible for this element is noise reduction, which does a pretty good job of smoothing tonal transitions and eliminating unnatural colour blending – of course, within its capabilities. Unfortunately, it works quite aggressively, so using it comes with trade-offs. In addition to improving gradation, it can also remove film grain or slightly 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 S90F:

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

The LG QNED93A turns out to be a very solid television for everyday use. Its image processor performs excellently with upscaling, making even older films or free-to-air television sharper and more detailed. During the screening of 'The Godfather,' it’s clearly visible how upscaling brings out additional details from the image – the characters’ faces and the texture of their clothing look significantly clearer than in the original material.

The digital image processing also deserves praise. The television is equipped with a function that reduces unwanted colour banding and screen irregularities. It works best in the 'Medium' setting – subtly smoothing tonal transitions without overly interfering with the image. This way, the natural film grain is preserved, and the screen does not appear artificially smooth. Perhaps in some scenes, slight colour banding can still be noticed, but in practice, the effect is more advantageous than with a stronger intervention from the algorithm.

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 smooth, clear, and there’s no room for ghosting or blurring, which can sometimes plague cheaper LCDs.

The TV also comes equipped with motion smoothness settings that allow you to customise everything to your liking. We have motion blur reduction and judder reduction – you can set it so that the image is super smooth (even to the point of looking a bit soap opera-like), or more cinematic, with the classic “jumpiness” of 24 frames. The choice is yours, Samsung imposes nothing.

LG QNED93A has been equipped with a 144 Hz panel. This is primarily a nod to gamers, but the fact that higher refresh rates are increasingly appearing in televisions can be viewed positively. In everyday viewing, 120 Hz remains key, and in this regard, the QNED93A performs well. The manufacturer also provides the option to adjust the picture thanks to the TruMotion system – the De-Judder and De-Blur sliders allow you to choose between a cinematic motion feel with visible frames and full smoothing with theatrical motion.

When it comes to gaming features – the S90F has absolutely nothing to complain about. 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 Game Bar – a practical tool that allows you to quickly preview picture settings, VRR status, ALLM mode, and other useful options. Game Motion Plus deserves special mention – Samsung's proprietary motion smoother that actually works sensibly in games. The image appears smoother, but without any artificial effects or slowdowns.

It's also worth mentioning the HGiG feature, which – and this may be a slight surprise – works correctly. We bring this up because Samsung clearly messed something up in one of the recent updates, and in some models, the option responsible for HGiG simply... disappears from the menu. Setting it up becomes almost 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.

LG QNED93A is a television that has undoubtedly been designed with gamers in mind. Right from the start, we get a complete package – all four HDMI ports operate in 2.1 standard, so whether we connect a console, a PC, or a receiver, we have full compatibility. This is important because many manufacturers still limit themselves to two ports, and here nothing stands in the way of having maximum capabilities for all the equipment. There’s also an automatic game mode (ALLM), which automatically switches the television to the appropriate settings when the console is turned on, as well as variable refresh rate (VRR). This means the image doesn’t stutter or glitch, even when the frame rate drops – whether in dynamic shooters or during races.

The 144 Hz panel gives an additional advantage in computer games. While 120 Hz is enough for consoles, the QNED93A allows PCs to push even more – every movement, every glance to the side is refreshed faster, which makes a difference especially in e-sports. The manufacturer also considered HDR in games – the television supports HGiG mode, which are guidelines intended to ensure that the lighting effects are exactly as the game developers intended. To top it off, we get Game Bar – a special information bar called up on the screen that shows parameters in real time. You can check the frame rate, active VRR functions, or input lag levels. This solution is useful not only for settings enthusiasts but for anyone who wants to quickly check what mode the television is operating in and whether everything is working as it should.