Samsung S85F (WOLED) vs Philips OLED950

For most of the time, let's say in 90% of film scenes, viewers will hardly see any difference between the S85F versions. When small but very bright light points appear on screen – a lantern in a dark alley, a gunshot, the sun breaking through the clouds – this WOLED panel (just like the smaller S85F) performs exceptionally well. Our measurements showed a peak brightness of around 750 nits. We can confidently state: this is a great result that guarantees fantastic HDR effects. The problem arises in a very specific, uncomfortable situation for any OLED. We're talking about the moment when the entire screen has to shine at full brightness clearly. Examples include a white background screen, a skiing scene, or our test sequences (5) from the film The Meg. And here, unfortunately, the results diverge quite significantly against the WOLED panel variant. Our measurement equipment was able to measure a maximum of around 250 to 300 nits of brightness under such conditions. To be clear: the same model on a QD-OLED panel in the same test is almost twice as bright. The second issue: colours. And here we also have to be honest – QD-OLED has a structural advantage. Why? It’s simple. QD-OLED creates colours from three components (red, green, and blue) and doesn’t need an additional white subpixel. The WOLED panel we’re testing here uses that white subpixel, mainly to boost overall brightness. The effect is that QD-OLED is able to display a slightly wider colour palette, and the colours are a bit "cleaner." But let’s be clear: it’s not that the colours on this WOLED panel are bad! Quite the opposite, they are really very good. Coverage of the DCI-P3 film colour gamut at 97% and 71% for the wider BT.2020 palette is still high-end. We just have to honestly admit that those few percentage points of coverage advantage lie with QD-OLED technology and may be noticeable in very specific moments.

OLED950 is a phenomenal TV for consuming content in HDR format, primarily thanks to the use of innovative Tandem OLED technology. With this technology, the screen can generate astronomical brightness levels, reaching over 2000 nits in movie scenes (on test patterns). This is an outstanding result that places the OLED950 model among the elite displays available on the market. However, it is worth noting a specific aspect of this solution – at moments when full-screen flashes of light appear, brightness can drop by as much as half. Nonetheless, it is important to highlight that levels above 1000 nits on a full screen are still an outstanding result. This allows HDR content to be displayed exactly as filmmakers intended, maintaining the dynamics and impact of bright scenes.

The use of Tandem OLED technology also brought tangible benefits in terms of colour reproduction, improving elements that traditional WOLED panels had issues with compared to QD-OLED competition. In the case of the OLED950, the colour gamut coverage is wider than in classic WOLED panels, reaching nearly 100% of the DCI-P3 colour space and a solid 82% of the demanding BT.2020 palette. While these results still do not match the highly refined achievements of QD-OLED panels, the difference becomes less noticeable during real-world use. We cannot deny that in the vast majority of films, colours look simply fantastic on this model – they are saturated, vibrant, and full of depth.

When it comes to factory colour reproduction, our test unit in SDR mode suffered from a slight deficit in red and yellow. This resulted in a subtle yellowish tint visible in shades of white. However, this is not the biggest issue with the S85F. Similar to the QD-OLED panel variant, the main problem with this model is the way it presents HDR content. When we look at the EOTF curve graph, it’s easy to see that the TV has quite significant issues with strong image over-brightening. This results in the final image becoming very unnatural in many scenes.

We tested the OLED950 model in Film mode. Although it is intended to be the best and most accurate preset on this television, in practice, it proved to be not without flaws. Interestingly, in the specimen we tested, the biggest challenge was not the white balance itself – although it did show a slight tendency to give the image a pinkish tint. The main issue lay in the way the television managed brightness, both in everyday SDR content and in demanding HDR scenes. Analysis of the gamma chart and the EOTF curve leads to one key conclusion: the television excessively exposes brightness in the lower registers. This results in the image appearing less contrasty than what the panel technology allows. Details in dark areas, which should remain perfectly dimmed (the characteristic "OLED black"), are simply unnecessarily highlighted and brightened. Fortunately, these errors can be corrected using the appropriate tools, so – as always – we proceeded with professional calibration.

After conducting calibration in Filmmaker mode, we managed to eliminate most unwanted effects. In SDR content, the TV performs exceptionally well, and its colour reproduction errors do not exceed a value of 2, which is an outstanding result. The HDR content looks a bit worse, though still very good. Although we managed to eliminate a significant unnaturalness of the image caused by an overly high EOTF curve, the most discerning observers may notice that it is not perfectly aligned. It runs slightly below the reference curve, which would suggest that the S85F has minor issues in displaying all details in the image. We must immediately point out that it is highly unlikely for the average viewer to notice any deficiencies in the picture. We assess the final result after calibration as exemplary.

As you can see, the OLED950, after a professional calibration process, becomes an absolutely phenomenal display that, without a shadow of a doubt, can be placed alongside the best televisions currently available in the world. This equipment needed only a professional touch to showcase its full potential and eliminate factory shortcomings. The residual errors in the Color Checker tests and the fidelity of the colour palette speak for themselves. We are dealing with an almost perfect device here. A true window to the world, offering image quality of the highest order.

The processing of tonal transitions (gradients) in the S85F is at a high level. The television effectively handles posterization (the "stepping" effect of colours), even with heavily compressed content, for example, from streaming services. However, using this feature requires a certain compromise. We noticed that the noise reduction algorithm is quite aggressive – even at the lowest setting, it can eliminate the natural film grain, which for many viewers is part of the film's aesthetics. The "Standard" setting seems to be a golden mean, without causing a noticeable loss of important details, so we can recommend it. However, we advise against using the "High" level, which, in addition to noise, also removes desired details such as texture or the structure of objects on the screen.

The upscaling process of lower resolution content works very well in the S85F. The image is sharp and clear. The only minor imperfection we managed to observe is occasional slight aliasing on the edges. The television still displays characteristics typical of this manufacturer, namely active "overscan" (a slight image enlargement). This should be kept in mind, especially when watching older content, as it may result in minimal clipping of the original frame.

Upscaling

In terms of the scaling of the image, the proprietary P5 processor performs just as well as in most of the manufacturer's models. Lower resolution content gains a very soft and plastic character. This presentation will certainly appeal to many people. However, if you prefer sharper contours, you can gently enhance them using the appropriate slider in the TV menu. In this aspect, it's really hard to nitpick. The image simply looks very good and additionally, there are no issues with overscan.

Smoothing and Distortion Reduction

The smoothing of tonal transitions performs somewhat worse. In the settings, we find an option called "Distortion Reduction." This allows for a three-level adjustment of the processor's intervention. Unfortunately, the Minimum setting works poorly and the smoothing effects are minimal. The Medium level gives a decent result, but it also begins to smooth out the details of the actors' skin. On the other hand, the Maximum setting works too aggressively. It removes far too many details from the face and background elements or can even eliminate film grain. To achieve the optimal effect, it's worth playing around with these settings at home and adjusting them to your liking. It might seem that the Medium option represents the best compromise here.

S85F is a model with impressive speed. The use of a 120 Hz OLED panel ensures that dynamic scenes, both in games and during sports broadcasts, perform as expected: smoothly, sharply, and without loss of clarity. A key role here is played by the lightning-fast pixel response time, which is a natural advantage of OLED technology. Transitions between frames are instantaneous, and the image remains clear even during the fastest camera movements. Moving objects, like a ball on the field or a car in a chase scene, are clear and free from the characteristic smearing of LCD panels (so-called "trail").

The motion reproduction on the OLED950 model is simply perfect. This is typical for screens of this kind (OLED 120Hz+), as the panel shows no motion blur at all. This allows us to enjoy perfect sharpness in practically any conditions. A significant part of this is due not only to the nature of organic technology itself. Equally important work is done here by the smoothing systems employed by the manufacturer.

85F has practically everything on board to become the dream screen for gaming. It features four full-fledged HDMI 2.1 ports with a bandwidth of 48 Gb/s, support for VRR (Variable Refresh Rate) and ALLM (Auto Low Latency Mode). Additionally, there is a super-detailed Game Bar that clearly shows all the key parameters. However, the real gem is the Game Motion Plus feature. This motion smoother dedicated to games makes the animation more pleasant to the eye while only slightly increasing input lag. This is a rare and well-functioning combination that deserves big applause for Samsung.

Now comes the moment where we need to vent a little. The lack of Dolby Vision in Samsung TVs has become standard, so there's no use hoping (unless something changes in the future). Unfortunately, it's much harder to explain the disappearance of support for HGiG after one of the software updates. HGiG (HDR Gaming Interest Group) is a key mode that allows for precise representation of brightness in HDR games, as intended by the creators. Without it, HDR calibration on consoles becomes less accurate, which may result in images that are too dark in the shadows or overly bright in the light areas. Perhaps Samsung will fix this in the next update – we have high hopes for that. Because if HGiG returns, the S85F will become nearly the perfect TV for gamers.

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

OLED950 is almost the perfect television for gamers. This is due not only to the unique atmosphere created by the Ambilight system during gameplay. The most important aspect here is the solid hardware support. We literally have everything you would expect from a modern gaming display. The manufacturer has implemented two HDMI 2.1 ports with full bandwidth of 48 Gb/s. This gives us access to gaming in 4K resolution at 120 frames per second. There is, of course, support for VRR technology and the automatic game mode ALLM. The device handles any HDR signal with ease, whether we’re using Dolby Vision or the HGiG standard.

We have access to all settings from one place thanks to the special Game Bar overlay. While this interface may not be the most graphically attractive on the market, it fully accomplishes its task. It displays all the important signal parameters and offers useful additions. Gamers can take advantage of the minimap zoom function or add a fixed crosshair on the screen, which can be seen as a small aid in online competition. The adjustment of contrast range also proves to be useful. It allows you to brighten shadows and achieve better visibility of enemies hiding in dark corners of the map.