Samsung QD-OLED S90D / S94D vs Haier M90E

In the HDR effect quality category, Samsung S90D achieves remarkable results. On the luminance chart up to 10% window, the TV exceeds the magical threshold of 1000 nits, which is an impressive outcome. However, in the film scenes we tested, these values were slightly lower. Additionally, in the case of a scene with fullscreen sunlight glare, brightness drops to around 500 nits, but it still remains at a very good level. It is worth mentioning that this model stands out with very high colour gamut coverage, thanks to the QD-OLED panel used, which gives it an advantage over TVs with WOLED panels that cannot achieve such a wide spectrum of colours.

Haier M90E is a television that doesn’t lack brightness. In most film scenes, peak luminance exceeds 1000 nits, which gives the image a distinct "punch" and high dynamics. This performs really well with typical bright HDR material. However, one must take into account the previously mentioned dimming algorithm. In scenes that are not evenly flooded with light – for example, when displaying individual stars on a black sky – the high brightness highlights the shortcomings of zone control. Instead of a precise light point, we often see a distinct halo effect around bright objects. Despite these drawbacks, the overall presentation of the image can be pleasing, thanks in large part to the colour reproduction. The manufacturer has applied a PFS phosphor coating, which allows for wide coverage of the colour palette. In our measurements, the coverage of the DCI-P3 space reached a solid 95%.

Samsung 65 S90D with a QD-OLED panel has been tested in Filmmaker mode, which the manufacturer has been using for years to provide the best possible picture settings. In this mode, the TV offers a fairly decent image but with some shortcomings worth noting. In terms of white balance in HD content, viewers may notice a dominance of the red color. This effect can lead to the impression that certain skin tones appear unnatural and the overall scene will be too warm, which in turn can affect immersion in the watched material. In scenes where subtle differences in color are crucial, these distortions can be particularly noticeable. Similar sensations may also occur in 4K HDR content. Changes in white balance in this case can be analogous, with a noticeably smaller deviation in red color. This can also cause certain details and colors to not be fully represented, making the image lose its naturalness.

When it comes to contrast, the gamma presents quite well, however, some errors are still noticeable. Gamma values are below the reference level of 2.4, which can result in bright areas of the image being washed out and dark areas lacking detail. This limitation can cause some scenes to lack depth and detail, which in turn affects the overall presentation quality. On the other hand, the EOTF curve related to contrast in 4K HDR content performs really well, showing that the TV can effectively convey differences in brightness. Nevertheless, it is worth noting that these values are slightly below the ideal level on the graph, indicating the need for further optimization in this regard.

Samsung S90D in Filmmaker mode offers solid color reproduction, but requires some adjustments to fully realise the potential of the TV, especially in the context of different types of content.

For the measurements, we chose the Film mode, which is supposed to provide an image closest to the intentions of the creators. Unfortunately, in the case of the M90E, its characteristics – besides the reduced brightness – differ little from the Dynamic mode. In both SDR and HDR materials, the image is noticeably tinged with a cool blue hue. The white balance is heavily skewed towards blue, reminiscent of typical, aggressive "store" settings. This results in unnatural skin tone reproduction and makes the image tiring to the eyes during longer viewing sessions. The way brightness is managed also negatively impacts colour fidelity. The TV struggles to maintain proper levels – small details are often too dim, while larger, bright areas of the image become overexposed. These deviations in the brightness curve, combined with the cool white balance, lead to very large colour reproduction errors (DeltaE) in the factory settings.

After calibrating the TV, the Samsung S90D in film mode gains quality more than one might expect. The white balance for HD and 4K HDR content has been adjusted to near perfection. Although minor shortcomings can be noticed, they are subtle enough that they don’t significantly impact the overall picture quality. The colours have become more harmonised, aiding in the natural reproduction of details, particularly in scenes that require precise colour representation. It is worth noting that this model, in this size, uses a QD-OLED panel which offers broader colour gamut coverage compared to other sizes of this model that are equipped with a WOLED panel.

The contrast has also significantly improved. After calibration, the gamma graph is much closer to the expected line, providing a better balance between light and dark tones in the picture. The EOTF curve, which before calibration indicated issues with overexposed scenes, now shows significantly better results. This effect allows for the retention of more details in the bright areas of the image, especially in HDR materials.

Haier M90E clearly improves after undergoing professional calibration, especially for SDR content. The television's menu offers a sufficient number of tools to effectively correct factory errors. We managed to "tame" the white balance and eliminate the dominant blue glow. We also adjusted, albeit to a lesser extent, the gamma curve, which allowed us to recover some details in the shadows that were too heavily dimmed in the factory settings. The final effect in SDR is a significantly more natural and pleasing image. In HDR mode, the success is only partial. While we managed to improve the white balance here too, color reproduction errors (Color Checker) remained at a high level. Analysis of the EOTF curve (responsible for brightness in HDR) points to the cause of the problem: the television imposes its own interpretation of the signal and does not provide tools to modify this curve. The source of high errors is not the calibration itself, but the specificity of the device – aggressive and imprecise zone dimming interferes with measurements and is "stiffly" embedded in the characteristics of this model.

The television handles tonal transitions excellently, allowing colours to flow smoothly into each other, creating a natural image. The built-in noise reduction feature can further enhance these transitions, which can be useful in certain situations. However, it is worth remembering that activating this option may lead to excessive smoothing of the desired film grain structure, which in turn can affect the authenticity and atmosphere of the image. Therefore, caution is recommended when using this feature to avoid losing the character and depth of the content.

The Samsung S90D model effectively processes materials in lower resolutions. This can be seen in the displayed image. The model's silhouette is clear and naturally reproduced, with details well preserved. Additionally, the branches of the trees are well-defined, showing no visible jagged edges that could degrade the quality of the image. Thanks to effective upscaling, even lower resolution materials look attractive on the screen, which will surely please users enjoying a variety of content sources, such as standard cable or antenna television.

The evaluation of the image processor must be divided into two distinct aspects, as the Haier M90E behaves inconsistently here. The first issue is the upscaling itself, which is the process of scaling lower resolution content to 4K. In this task, the television performs quite decently. The algorithms effectively enhance detail, making the final image relatively sharp, clear, and readable. In this respect, it’s hard to have major complaints about the device.

The situation is completely different with materials that have a high degree of compression, which we encounter in older recordings or on platforms like YouTube with a lower bitrate. Here, the processor struggles with smoothing tonal transitions and masking the imperfections of the source. The television fails to hide compression blocks, resulting in a very harsh, "digital" character of the image. The lack of effective artifact reduction can certainly deter viewers from watching lower quality content on this screen.

Samsung S90D TV, equipped with a refresh rate panel of 120 Hz, and in the appropriate PC configuration even 144 Hz, ensures excellent motion fluidity. Samsung focuses on a variety of image clarity settings on a ten-point scale, giving users the freedom to adjust the display to their own preferences. In UFO tests, the OLED panel shows its strengths, eliminating any blurring. The lightning-fast pixel response makes dynamic movements faithfully reproduced.

Similar results can be observed in other sizes of this model with a WOLED panel, which also offer excellent image fluidity. Organic technology, in this case, is considered one of the best on the market. The picture of Samsung S90D, regardless of the type of panel, is incredibly sharp and detailed, making this TV perfect for dynamic scenes, both during gaming and sports broadcasts. Additionally, its capabilities in terms of refresh rate and clarity ensure that every movement is smooth and natural, which will certainly satisfy even the most demanding users.

Haier M90E is equipped with a simple yet functional motion smoothing system (MEMC). In the settings menu, users will find a three-level adjustment scale: low, medium, and high. This allows for adjusting the level of intervention in the image to personal preferences – from gentle smoothing of 24p films to maximum fluidity (soap opera effect). The system operates stably and fulfills its purpose in typical applications.

Television S90D is an excellent solution for gamers, offering a range of advanced features that elevate the gaming experience to a new level. Equipped with the HDMI 2.1 standard, the model supports modern technologies such as VRR (Variable Refresh Rate) and ALLM (Auto Low Latency Mode). Thanks to these solutions, the image is incredibly smooth, and the response to commands is instantaneous, which is crucial in dynamic titles. Additionally, the S90D supports HLG (Hybrid Log-Gamma) and G-Sync and FreeSync image synchronisation. This allows for a perfect connection with the Xbox, PlayStation, or PC, eliminating issues with tearing and stuttering. The built-in operating system offers the Xbox Game Pass app, providing access to a massive library of games directly from the television. This solution makes gaming even more convenient and accessible. The Game Bar feature provides quick access to important information, such as current settings, performance statistics, and the ability to adjust image options. This allows for on-the-fly modification of display parameters, which is incredibly useful during intense gameplay. Despite lacking support for Dolby Vision, Samsung S90D still delivers excellent HDR image quality, allowing for full utilisation of the potential of games and films. As a result, S90D represents a unique combination of modern technologies, excellent image quality, and intuitive features, perfect for any gaming enthusiast.

From a hardware perspective, the Haier M90E is a solid offering. The television is equipped with two full-bandwidth HDMI 2.1 ports, which ensure support for key technologies: VRR (variable refresh rate) and ALLM (auto low latency mode). Another plus is the correct implementation of Dolby Vision for gaming, which maintains a relatively low input lag. Problems arise with the software configuration. The biggest drawback is the forced, continuous dynamic tone mapping by the television's processor. This prevents proper HDR calibration from the console using system panels (HGiG) – the television ignores source settings and processes the image in its own way. We also noted deficiencies in the interface: the M90E does not have a typical "Game Bar" (overlay with parameters), which is standard among competitors. Cooperation with Xbox consoles has also proven problematic with atypical parameters – the device struggles to properly display 1440p resolution at 120 Hz refresh rate. Despite the aforementioned software shortcomings, the Haier M90E remains a very attractive screen for gamers. The final reception is saved by a solid hardware foundation. Native refresh rate of 144 Hz and the presence of full-featured HDMI 2.1 ports are advantages that are crucial in everyday use. If we are looking for a television that provides high fluency and supports 4K signal, this model will do its job.