Philips OLED910 vs Haier K85F

OLED910 is simply an absurdly bright television for an OLED. All thanks to the new panel from LG Display, the Tandem RGB OLED, which Philips has branded as "META OLED". It is this panel that allows for over 2000 nits of brightness in films, which not long ago was completely unachievable in OLEDs. The way the television handles full-screen scenes flooded with bright light also deserves high praise. Usually, in OLEDs, brightness drops significantly, but here it remains at a great level – around 1400 nits. These values are almost reference-level, and combined with excellent colour reproduction at 99% DCI P3 and 82% BT.2020, it gives us an HDR effect that can confidently be called one of the best in the world.

Let’s now move on to one of the hottest topics in the world of televisions, which is the quality of HDR performance. In the case of the Haier K85F model, we unfortunately have to make it clear: if you’re looking for equipment to watch content in a wide dynamic range, you should steer clear of this model. The main issue is its very low peak brightness, which during our tests barely reached 250 nits. To give you a better idea of what that means – this level is fine for watching standard SDR content, but it’s absolutely insufficient to show any real benefits of HDR. The image simply doesn’t have the "power" to generate bright, striking highlights. All of our measurements and tests on specialised test patterns confirmed this. As if that wasn’t enough, the television also struggles with colour reproduction. In this budget build, there are no technologies that broaden the colour gamut, such as quantum dot layers (marketed as "QLED"). As a result, the coverage of the DCI-P3 colour space, which is crucial for HDR content, is only around 80%. In practice, this means that the image will not only be dark but also devoid of the vibrant, saturated colours that the director wanted to show us.

Unfortunately, when it comes to colour reproduction straight out of the box, the Filmmaker mode on the OLED910 really falls short. The television overemphasises the blue colour and at times it looks almost like a shop mode. It gives the impression that the manufacturer hasn't quite calibrated the device properly. The result is that colours appear unnatural, and the overall look resembles a slightly exaggerated display from a store showcase. HDR content looks much better, where apart from a slight loss of detail in blacks, there’s hardly anything to complain about. The problem is that in everyday viewing, it’s actually SDR materials that matter the most – and on the OLED910, they just look poor and significantly deviate from what we would expect from a television of this class.

Alright, how does the television handle colours straight out of the box, without any intervention from our side? The Haier K85F offers a whole range of picture modes, such as Dynamic or Eco, but for anyone wanting to watch films according to the creators' intentions, there's essentially only one that matters: Film mode. This is where we focused our tests, and unfortunately, its name has little to do with reality. The picture on factory settings is very far from what we could call cinematic fidelity and requires many adjustments. Let's start with the white balance, which has a clear deficiency of red colour. In practice, this means the entire image has a cool, bluish tint. Even worse is the issue of brightness management, that is, the gamma curves (for SDR) and EOTF (for HDR). Their graph resembles a true rollercoaster, which terribly impacts the viewing experience. This results in unnatural dimming of SDR content, causing details in the shadows to be lost, and in the case of HDR – an excessive brightening that further exacerbates the problem of clipping. Such a combination, which consists of too cool white combined with chaotic brightness and too much blue colour saturation, leads to enormous errors in colour reproduction. Our measurements on a specialist ColourChecker chart showed errors (Delta E) regularly reaching and exceeding values of 8-9. To put it simply: errors above the threshold of 3 are easily noticeable to the naked eye, so such a result means that the colours on the screen are simply heavily distorted.

Fortunately, it quickly turned out that it wasn't the panel causing the problems, but the way Philips factory-tuned the OLED910. After calibration, the television showcased its full potential, and only then could we see what the new panels from LG Display were truly capable of. We primarily corrected the white balance and brightness characteristics, successfully taming the excessive blue and giving the image a natural look. The final effect can be described as excellent. Errors on the Color Checker palette rarely exceeded a value of 3, which in practice means an image close to ideal and colours presented in line with the creators' intent. In SDR content, the effect was stunning, and in HDR, the improvement was even more noticeable – gradients became cleaner, and colours fuller and more accurate. After calibration, the OLED910 transformed from a disappointing television into equipment that can be confidently referred to as reference-grade in terms of colour accuracy.

No good, but can anything be done about this picture? Is professional calibration able to save the situation? The answer is both yes and no. It needs to be said clearly that there are certain things we cannot overcome. The limitations of the construction itself, namely a poor panel and its narrow colour coverage, mean that you can forget about a sensible HDR effect – we won't be pulling the wool over your eyes on that. The biggest beneficiary of our adjustments is undoubtedly the SDR mode, and it is for watching such content, after calibration, that this television starts to make sense. We managed to tame the white balance in our own way. Although the television only offers basic, 2-point adjustment (rather than precise, 20-point), it's not perfect, but we successfully eliminated that unpleasant, cold "chill" in the picture. Above all, though, we noted a huge improvement in brightness management. The gamma curve, which previously resembled a rollercoaster, looks like an almost perfectly straight line after calibration. This is a sign that the television can finally display an image without artificially dimming or brightening it. The conclusion is simple: even with such a cheap television, professional setting correction can achieve a great deal and extract the maximum potential from it.

The previously visible colour connections can be largely mitigated thanks to a feature called "distortion reduction." Similar to the OLED820, it’s best to set it to medium level, as it then provides quite decent results – smoothing unwanted tonal transitions while not taking away too many details from the image. Although at times the effect may be a bit too aggressive, in everyday viewing, this function can be considered useful.

When it comes to image scaling, the OLED910 performs really well. The test material with the model showcased a characteristic soft look typical of Philips – at times almost too soft – but at any moment this can be adjusted with the sharpness slider to tailor the image to your own preferences. It’s also a plus that the television has no issues with overscan, which still occurs in some competitors' models. It’s a minor detail, but it’s pleasing as it means that all content, even the oldest, is displayed as it should be.

Let’s move on to digital processing and image scaling, specifically how the Haier K85F handles lower resolution signals, such as from regular television. Right off the bat, we encounter an incredibly annoying and completely incomprehensible issue – the overscan is enabled by default. This means the television artificially enlarges the image, cutting off its edges on every source, even 1080p. To see the full frame, you have to dig into the screen settings each time and manually switch the format to "stretch to 16:9." It's a minor detail, but devilishly frustrating. The scaling of content to 4K resolution can be described in one word: acceptable. And that's about it. The image processor doesn't strip detail from the image, nor does it generate jagged edges or other artifacts. It simply does its job, without any bells and whistles. It’s alright, but nothing more. The most significant and noticeable shortcoming in the digital processing section is, however, the absence of a tone transition smoothing feature. This is an algorithm that could significantly reduce the annoying banding effect we mentioned earlier. Unfortunately, the manufacturer did not foresee such a solution, condemning us to watch the imperfections of the panel and low-quality material in all their glory.

OLED910 is a TV with a refresh rate of 144 Hz. It’s a bit of a shame that Philips didn’t opt for 165 Hz, as we know that the matrix used in it is capable of that. On the other hand, such a bonus will mainly benefit PC gamers, as for everyday use, the most important thing is the 120 Hz refresh rate, which is fully sufficient. Combined with the advantages of the OLED matrix – lightning-fast pixel response times and the absence of motion blur, the picture is impeccably sharp and fast, even in dynamic action scenes. The traditional motion smoother from Philips called “Motion Style” also deserves praise. We can easily adjust it to our own preferences: the “Smoothness” slider is for movies and allows you to choose between a more “framey,” cinematic character and a smooth, theatrical image. Meanwhile, the “Motion Blur Reduction” slider is intended for sports; here, it’s worth setting it to the maximum value so that the image is clear and sharp during very fast shots.

The panel in the K85F model operates at a native refresh rate of 60 Hz, which sets certain expectations for image smoothness right from the start. However, we must admit that we were very positively surprised when we found two separate motion control sliders in the settings menu: one labelled "Motion Blur Reduction" and the other "De-Judder." Such generosity in this price segment is an absolute rarity, as manufacturers usually offer at most one shared option. Unfortunately, our enthusiasm faded as quickly as it appeared. It soon became clear why Haier was so "generous" – the slider responsible for reducing motion blur is simply a decoy. Sliding it makes absolutely no visible difference on the screen, so only one of the two options works.

The OLED910 is fantastic for gaming. It supports 144 Hz, so if someone has a powerful PC, they'll easily make the most of that potential. For consoles, the most important thing is still 120 Hz, and everything works smoothly here. It has VRR, an automatic game mode, and even Dolby Vision in games along with HGiG mode, so we pretty much get a full package of gaming features. Philips also added a Game Bar, which is like a quick menu that shows basic information and allows you to enable a few handy features. It might not look as modern as the competition, but it works and does its job. The only downside is the number of HDMI 2.1 ports. There are only two, which can be quite disappointing in this class of television. If someone connects two consoles and something extra to the eARC - like a soundbar (which doesn't really make sense in this model, but more on that in the sound section), they'll have to do a bit more figuring around. Other than that, though, the OLED910 has everything we expect from a gaming TV.

Let’s move on to the features for gamers, although we must point out straight away that this is more of a proposal for the "occasional" ones. The manufacturer does boast in the specifications about having HDMI 2.1 ports, which looks impressive on paper, but in reality, it’s largely a marketing ploy. What good is a modern port when the heart of the television is a panel with a refresh rate of 60 Hz? It physically cannot display a signal at 120 frames per second, even at lower resolutions, which takes away HDMI 2.1’s key advantage. What a shame. (That’s why in our tests we note this as HDMI 2.0 ports). Another odd issue is the TV's response to an attempt to calibrate HDR from the console. Changes to brightness settings result in very unnatural image behaviour, which could suggest incorrect implementation of the HGiG standard. To be honest, one shouldn’t worry too much about this, as we have repeatedly mentioned, we simply do not recommend using any HDR content on this screen. However, to counterbalance the negatives, the Haier K85F does have two big and unexpected advantages. The first is the presence of ALLM, or automatic game mode, which switches the TV to low latency mode as soon as it detects a connected console. The second, even bigger surprise, is support for VRR, or variable refresh rate. While it operates within a very modest range of 48-60 Hz, its mere presence is commendable. Thanks to this, the image in games can “tear” less, which realistically improves the gaming experience.