Haier M90E vs Samsung S90H (WOLED)

Haier M90E is a television that does not lack brightness. In most film scenes, the peak luminance exceeds 1000 nits, which gives the image a distinct 'kick' and high dynamics. It performs really well in typical bright HDR materials. However, one must take into account the aforementioned dimming algorithm. In scenes that are not uniformly bathed in light – for example, when displaying single stars on a black sky – the high brightness highlights imperfections in zone control. Instead of a precise point of light, we often see a pronounced halo effect around bright objects. Despite these shortcomings, the overall image presentation can be pleasing, largely due to the colour reproduction. The manufacturer used a phosphor PFS coating, which allows for a wide coverage of the colour palette. In our measurements, the coverage of the DCI-P3 space reached a solid 95%.

Samsung S90H in the WOLED variant is still an exceptionally bright TV for its price bracket, although compared with the QD-OLED version it is slightly dimmer. The difference is not as significant as in last year’s F series, where the gap could reach as much as 500 nits. Here the parameters of both panels are very similar, and differences in peak brightness are only in the order of 100–150 nits. In small-area measurements the S90H on the WOLED panel easily reaches levels close to 1500 nits. Such a reserve of power allows HDR dynamics to be reproduced phenomenally; all highlights, light reflections and explosions have the necessary punch, exactly as the creators intended in the editing studio. As with most OLED displays, when a very bright scene fills the whole screen protection systems activate and brightness naturally falls to around 700 nits. It is worth emphasising that this is still an excellent result on the market. Often noticeably better than many Mini LED screens in the same segment.

Colour gamut coverage

The biggest difference between the two S90H variants lies in colour reproduction and saturation. This results directly from the different construction of the WOLED panel, which uses an additional white subpixel. As a consequence, colours at very high brightness do not reach the same intense saturation, and the volume of the wide gamut is somewhat more limited than in QD-OLED. That does not change the fact that in everyday use these differences will be hard for most viewers to spot. The DCI-P3 space we measured reaches nearly 99% on the WOLED panel, which means that in the vast majority of real film scenes both variants will present an almost identical picture. The true distance only reveals itself in rarer, exceptionally demanding productions that use the ultra-wide BT.2020 gamut. Due to the specifics of the WOLED panel’s construction, coverage of that standard is about 15% lower compared with the S90HAT with a QD-OLED panel, so the brightest, heavily lit colours in HDR may appear slightly less vivid.

For the measurements, we selected the Film mode, which is supposed to offer an image closest to the creators' intentions. Unfortunately, in the case of the M90E, its characteristics – apart from the reduced brightness – differ little from the Dynamic mode. Both in SDR and HDR materials, the image is distinctly tinged with a cool blue hue. The white balance is heavily skewed towards blue, which resembles typical, aggressive 'store' settings. This results in an unnatural representation of skin tones and makes the image fatiguing to the eyes over extended viewing periods. The management of brightness also negatively impacts colour fidelity. The television struggles to maintain proper levels – small details are often too dim, while larger, bright areas of the image suffer from clipping. These deviations in the brightness curve, combined with the cool white balance, lead to very significant colour reproduction errors (DeltaE) in the factory settings.

In Filmmaker mode, which we strongly recommend switching on straight out of the box, the S90H offers very good factory colour tuning. Colours are natural and faithful to the creators' intent, without the irritating oversaturation found in more aggressive presets. However, as is often the case without full calibration, no two units are identical. In our test the white balance was slightly lacking in blue, causing the image to lean a little towards warmer, yellowish tones. This was most noticeable in bright scenes, such as the snowy sequences from Star Wars. Additionally, the gamma curve was slightly low at 2.2, which produced a minor lift in shadow detail. In HDR mode the tuning was somewhat better, showing only a slight undersaturation in the red region.

Haier M90E clearly benefits from professional calibration, particularly with 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 tint. We also corrected, though to a lesser extent, the brightness curve (gamma), which allowed us to recover some detail in the shadows that were too heavily dimmed out of the box. The final effect in SDR is a picture that is significantly more natural and pleasant to watch. In HDR mode, the success is only partial. Although we were able to improve the white balance here as well, colour reproduction errors (Color Checker) remained at a high level. Analysis of the EOTF curve (responsible for brightness in HDR) indicates the cause of the problem: the television imposes its own interpretation of the signal and does not provide tools for modifying this curve. The source of the high errors is not the calibration itself, but the specific characteristics of the device – aggressive and imprecise zone dimming interferes with measurements and is 'firmly' embedded in the characteristics of this model.

After a full calibration it’s fair to say the S90H in WOLED guise looks almost perfect. In SDR mode colour inaccuracies drop to ultra-low levels and Delta E values very rarely exceed 2. That’s a phenomenal result, so if you care about perfectly faithful colour reproduction it’s definitely worth considering calibration. The calibrated HDR mode also performs very well, with the white balance stabilised and earlier deviations eliminated. After professional fine-tuning it’s really hard to find anything to criticise, because the TV delivers an image with almost reference-level naturalness and three-dimensionality. The slightly lower score in this category compared with the QD-OLED variant is solely due to the aforementioned limitation in saturation in extremely bright scenes; the tuning options and colour fidelity themselves are at the highest level.

The evaluation of the image processor must be divided into two separate aspects, as the Haier M90E behaves inconsistently here. The first issue is the upscaling itself, that is, scaling lower resolution content to 4K. In this task, the television performs quite decently. The algorithms effectively enhance detail, resulting in a relatively sharp, clear, and legible final image. In this regard, it is hard to have major objections to the device.

The situation is completely different with materials that have a high degree of compression, as encountered in older recordings or on platforms like YouTube with lower bitrate. Here, the processor "struggles" with smoothing tonal transitions and masking imperfections in 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 severely discourage viewing lower quality content on this screen.

In terms of posterisation reduction itself, Samsung has kept the solutions known from last year’s models. The dedicated gradient-smoothing function performs quite well and can effectively mask unwanted tonal banding, which is useful on a WOLED panel that is slightly more prone to banding. However, you should be aware of its aggressive behaviour. This mechanism, alongside the artefacts themselves, can clean up fine film grain and gently soften detail. Ultimately it is a matter of compromise, but if you want an absolutely faithful reproduction, it is safer to leave this option off.

Similarly, in the area of scaling it is difficult to call this a breakthrough. The S90H uses the same NQ4 Gen3 processor as its predecessor, so the upscaling quality was almost identical. The chip sharpens lower-resolution material very well, extracting a satisfying level of detail. Samsung still has not dealt with the longstanding overscan issue, though. With some older recordings or archive footage the edges of the image can be slightly cropped. It’s a minor flaw, but it’s a pity the manufacturer still hasn’t eliminated it.

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

In terms of motion handling, the S90H is simply excellent. This year's panel offers a boosted refresh rate of up to 165 Hz, though in practice the benefit will mainly be for gamers connecting a high-end PC. For films, series or sports broadcasts such a high refresh rate makes no difference and the picture looks exactly the same as at the standard 120 Hz. Regardless of the source, however, the OLED panel's lightning-fast response time does its job, so motion is clean and the ghosting or smearing familiar from LCD screens simply does not occur here.

From a hardware perspective, the Haier M90E is a solid proposition. The television is equipped with two full-bandwidth HDMI 2.1 ports, which supports key technologies: VRR (Variable Refresh Rate) and ALLM (Auto Low Latency Mode). It is also worth noting the proper implementation of the Dolby Vision mode 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 correct HDR calibration from the console using system test patterns (HGiG) – the television ignores source settings and processes the image on its own terms. We also noted shortcomings in the interface: the M90E does not have a typical "Game Bar" (overlay with parameters), which is standard among competitors. Collaboration with Xbox consoles proved problematic with unusual parameters – the device struggles to correctly display a resolution of 1440p at a refresh rate of 120 Hz. Despite the aforementioned software shortcomings, the Haier M90E remains a very appealing screen for gamers. The overall reception is saved by the solid hardware base. The native refresh rate of 144 Hz and the presence of full-fledged HDMI 2.1 ports are advantages that are crucial for everyday use. If we are looking for a television that ensures high fluidity and supports 4K signal, this model will fulfil its task.

Players should feel at home with the S90H, because Samsung has left few reasons to complain in that respect. The TV has four HDMI 2.1 ports, each of which supports VRR, ALLM and high refresh rates. There’s also the Game Bar, a handy menu that lets you quickly check key parameters and change settings without leaving the game. Importantly, Samsung has also improved HGiG mode. In last year’s models it could cause problems when used with a console, but on the S90H it now works as it should. What really stands out against the competition is the Game Motion Plus feature. It’s a special motion smoothing mode for games that works best with titles running at 30 or 60 fps. Motion becomes noticeably smoother, while latency remains at a reasonable level. In our measurements it was under 50 ms, so gaming is still comfortable. That’s important, because on many TVs enabling a similar smoothing feature causes such a large increase in input lag that controls become noticeably sluggish. Samsung has managed to find a good compromise here. There’s still no Dolby Vision Gaming, but in practice Game Motion Plus may prove to be a much more useful feature.