Philips OLED809/819 vs Haier K85F

The Philips OLED 809 delivers a highly satisfactory HDR effect. The television can reach luminance levels exceeding 900 nits in most scenes, and in some cases, even surpassing 1000 nits. This brightness ensures a rich and immersive experience for HDR content with a wide tonal range. The only exception occurs in a scene from the movie The Meg, where a large amount of bright white occupies most of the screen, preventing the TV from reaching higher brightness levels. However, this is not a significant issue, as the performance is still a considerable improvement over its predecessor.

Overall, these brightness levels, especially for an OLED panel not equipped with MLA technology, impress. Coupled with excellent coverage of the DCI-P3 colour spectrum, the Philips OLED 809 offers a truly spectacular HDR viewing experience.

Now let's move on to one of the hottest topics in the world of televisions, which is the quality of HDR effect. In the case of the Haier K85F model, we must unfortunately make it clear: if you are 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 this means – such a value is okay for watching standard SDR materials, but it is absolutely insufficient to show any real benefits of HDR. The image simply lacks the "power" to generate bright, striking bursts. All our measurements and tests on specialist patterns only confirmed this. As if that weren't enough, the television also struggles with color reproduction. In this budget model, we won't find any technologies that expand the color palette, such as quantum dot layers (known in marketing as "QLED"). As a result, the coverage of the DCI-P3 color space, which is crucial for HDR materials, is only about 80%. In practice, this means that the image will not only be dark but also devoid of vibrant, saturated colors that the director wanted to show us.

The best factory mode in which we performed all our tests was "Filmmaker," which is quite standard in televisions from this manufacturer. However, let’s first examine its characteristics before the calibration process. The first aspect we will focus on is white balance, as it is critical to ensuring the image remains free from any colour cast. The chart clearly shows that in both SDR and HDR materials, two colours dominated significantly: red and green, resulting in a strong yellow tint that affected the entire image. This was particularly noticeable on the "ColourChecker" palette, where all colours shifted towards their warmer counterparts.

The second aspect we will assess is what we consider to be the two most important charts for evaluating picture quality: gamma and the Electro-Optical Transfer Function (EOTF) curve. Both aim to maintain appropriate brightness and contrast. The first chart, which describes the brightness levels in SDR materials, shows that the brightness was significantly lower than the reference value marked by the orange line. This resulted in a sharp increase in brightness and a notable decrease in contrast, which was inconsistent with typical OLED television behaviour. The EOTF curve, on the other hand, showed greater "moderation," subtly brightening the overall image only up to 50% of the maximum brightness.

Well, how does the television perform with colors straight from the factory, without any intervention from our side? The Haier K85F offers a full range of picture modes, such as Dynamic or Eco, but for anyone who wants to watch movies according to the creators' intentions, only one really matters: Film mode. This is the mode we focused our tests on, and unfortunately, its name has little to do with reality. The picture in the factory settings is far from what we could call cinematic fidelity and requires many adjustments. Let's start with the white balance, which has a clear lack of red color. In practice, this means that the whole picture has a cool, bluish tint. The situation is even worse when it comes to brightness management, specifically gamma curves (for SDR) and EOTF (for HDR). Their graph resembles a real rollercoaster, which has a disastrous effect on the viewing experience. This results in unnatural dimming of SDR content, causing details in the shadows to get lost, and in the case of HDR – excessive brightness, which further exacerbates the issue of highlights. This combination, meaning too cool white combined with chaotic brightness and excessive blue color saturation, causes enormous errors in color reproduction. Our measurements on a specialized ColorChecker chart showed errors (Delta E) regularly reaching and exceeding values of 8-9. In simpler terms: errors above the threshold of 3 are easily noticeable to the naked eye, so such a result means that the colors on the screen are simply heavily distorted.

Philips, like most leading manufacturers, has been providing advanced calibration tools for years. The inclusion of 2- and 20-point grayscale adjustments, along with an advanced CMS (Color Management System), has yielded extremely beneficial results and fundamentally improved the perceived image. Nearly every element previously mentioned has undergone a transformation and has been restored to its natural state. This is particularly noticeable in the "ColourChecker" palette, where the measured colour samples align harmoniously. Notably, the white balance has been excellently calibrated, ensuring a pure image free from unwanted tint in both SDR and HDR content. The previously problematic gamma has been well addressed, with only minor errors that do not impact the overall performance. Similarly, the EOTF curve has been refined, removing the subtle brightening effect, and now offers a truly reference-quality presentation.

Well, is there anything we can do about this image? Can professional calibration save the situation? The answer is: both yes and no. It must be clearly stated that there are certain things we cannot overcome. The limitations of the construction itself, namely a poor panel and its narrow color coverage, mean that you can forget about achieving meaningful HDR – we won’t sugarcoat it for you. The biggest beneficiary of our adjustments is undoubtedly the SDR mode, and it is precisely for watching such content, after calibration, that this television begins to make sense. We managed to tame the white balance in our own way. Although the TV only offers basic 2-point adjustment (instead of precise 20-point), it’s not perfect, but we successfully eliminated that unpleasant, cold "chill" in the image. Above all, however, we recorded a significant 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 TV can finally display images without artificially dimming or brightening them. The conclusion is simple: even in the case of such a cheap television, professional adjustment of the settings can achieve a lot and draw out its maximum potential.

Philips OLED 809 struggled significantly in the smooth tonal transitions test. Focusing on the TV's algorithms, particularly the feature responsible for removing posterisation, the results were disappointing. This function, which offers several adjustable settings, proved ineffective in practice. The highest setting, while it does mitigate inconsistencies, it simultaneously blurs the entire image, rendering it virtually useless.

When dealing with lower-quality content, the performance of image upscaling algorithms becomes crucial. In this regard, the algorithms implemented in the OLED 809 perform admirably. They enhance image quality effectively, with minimal visible artefacts. Although slight edge fraying can occasionally be observed, it is unlikely to be noticeable during typical viewing sessions.

Let's move on to digital processing and image scaling, that is, how the Haier K85F handles lower resolution signals, for example, from standard television. Right from the start, we encounter an extremely annoying and completely incomprehensible issue – the overscan feature is enabled by default. This means that the television artificially enlarges the image, cropping its edges, and this occurs on every source, even 1080p. To see the full frame, you have to dig into the screen settings every time and manually switch the format to "stretch to 16:9." It's a detail, but incredibly frustrating. The scaling of content to 4K resolution can be described in one word: acceptable. And that's basically it. The image processor does not strip the image of details, nor does it generate jagged edges or other artifacts. It simply does its job, without any fireworks. It's fine, but nothing more. The biggest and most noticeable shortcoming in the digital processing section is the absence of a banding smoothing function. This is an algorithm that could significantly reduce the annoying banding effect we mentioned earlier. Unfortunately, the manufacturer did not implement such a solution, condemning us to watch the imperfections of the panel and low-quality materials in all their glory.

The maximum refresh rate achievable on the Philips OLED 809 is 144 Hz, a feature that can be fully utilised when connected to a high-performance PC. However, when connected to consoles or used for standard television viewing, the refresh rate remains at typical values. For users seeking enhanced motion fluidity or wishing to eliminate the characteristic choppiness of films shot at 24 fps, Philips provides a sophisticated motion-smoothing system.

In the settings menu, there is a "Smoothness" slider designed to reduce choppiness, along with a "Motion Blur Reduction" option to enhance the sharpness of fast-moving elements. These features perform impressively and allow for granular adjustments, ensuring that each setting has a tangible impact on motion perception. Notably, the system operates effectively at a refresh rate of 120 Hz, taking advantage of multiples of video frame rates. With this comprehensive range of options, users can easily fine-tune the settings to suit their preferences. For example, slight smoothing without inducing the soap opera effect offers a balanced viewing experience.

Motion clarity on the OLED 809 is further bolstered by the exceptional response time of the OLED panel, measured at approximately 0.1 ms. This surpasses the performance of IPS/ADS or VA panels, making OLED technology unrivalled in this area.

The panel in the K85F model operates at a native refresh rate of 60 Hz, which already sets certain expectations for smoothness of the image right from the start. However, we must admit that we were very positively surprised when we found not one, but two separate sliders for motion control in the settings menu: one labeled "Blur Reduction" and the other "De-Judder." Such generosity in this price segment is an absolute rarity, as usually manufacturers offer at most one common option. Unfortunately, our enthusiasm quickly dwindled as fast as it appeared. It soon became clear why Haier was so "generous" – the slider responsible for blur reduction is simply a dummy. Moving it does not produce any visible effect on the screen; thus, only one of the two options actually works.

The Philips OLED 809 fully supports all technologies included in the HDMI 2.1 standard, and during testing, each activated without issue. This makes the TV an excellent choice for gamers, whether on console or PC. Notably, it features HGIG mode as a strong alternative to Dolby Vision, which is less ideal for gaming on this model due to its high input lag.

The TV also includes a dedicated GameBar for monitoring gameplay parameters and adjusting settings quickly. Features like a crosshair overlay for sniper shots, shadow enhancement for better visibility, and a colour filter for gamers with visual impairments further enhance its gaming appeal.

In summary, the OLED 809 is a fantastic choice for gaming, equipped with VRR, ALLM, G-Sync, FreeSync, and HDR Dolby Vision gaming for a deeply immersive experience. The only drawback is the artificial sharpness in game mode, which cannot be fully softened, regardless of settings.

Let's move on to the features for gamers, although we must point out right away that this is more of a proposal for "casual" players. The manufacturer boasts in the specifications about the presence of HDMI 2.1 ports, which looks impressive on paper, but in reality, it is largely a marketing gimmick. 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 most important advantage. That's a shame. (That’s why we mark it as HDMI 2.0 ports in our tests). Another oddity is the television's response to attempts to calibrate HDR from the console. Changes in brightness settings cause very unnatural behavior of the image, which might suggest an incorrect implementation of the HGiG standard. To be honest, however, you shouldn't worry too much about this, because as we have mentioned multiple times, we simply do not recommend using any HDR content on this screen. However, to make it not so bitter, the Haier K85F also has two significant and unexpected advantages. The first is the presence of ALLM, or Auto Low Latency Mode, which switches the television 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. Although it works in a very modest range of 48-60 Hz, its very presence is commendable. Thanks to this, the image in games can stutter less, which truly improves the gaming experience.