Haier M90E vs Samsung S90H (WOLED)

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%.

The Samsung S90H in the WOLED variant is still an exceptionally bright TV for its price bracket, although it is slightly dimmer compared with the QD-OLED version. That difference is not as pronounced as in last year’s F series, where gaps sometimes reached 500 nits. Here the parameters of both panels are very similar, with differences in peak brightness of only about 100–150 nits. In small-window measurements the S90H with the WOLED panel easily reaches close to 1,500 nits. That headroom lets it phenomenally convey the dynamics of HDR effects — blooms, light reflections and explosions have the right punch, exactly as intended by the studio creators. As with most OLED displays, when a very bright scene fills the entire screen, panel protection systems kick in and brightness naturally falls to around 700 nits. It’s worth stressing 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 stems directly from the different construction of the WOLED panel, which uses an additional white subpixel. As a result, very high-brightness colours don’t achieve quite the same saturation, and the wide-colour volume is slightly more limited than with QD-OLED. That said, in everyday use these differences will be hard for most viewers to notice. Our measured DCI-P3 coverage on the WOLED panel reaches almost 99%, meaning that for the vast majority of real film scenes both variants will present an almost identical image. The real gap only appears in rarer, especially demanding productions that use the ultra-wide BT.2020 gamut. Because of the WOLED panel’s construction, coverage of that standard is roughly 15% lower compared with the S90HAT with a QD-OLED panel, so the brightest, heavily lit HDR colours may appear a touch less vivid.

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.

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 annoying oversaturation seen in more aggressive profiles. However, as is often the case without full calibration, there is unit-to-unit variation. In our test the white balance was a little deficient in the blue component, so the image leaned slightly 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 around 2.2, which caused a small lift in shadow detail. In HDR mode the tuning was a bit better, showing only a slight undersaturation in the red region.

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.

After full calibration, you can safely say the S90H in the WOLED version looks almost perfect. In SDR mode colour errors fall to ultra-low levels and Delta E values very rarely exceed 2. That's a phenomenal result, so if perfectly faithful colour reproduction matters to you, it's definitely worth getting it calibrated. The calibrated HDR mode also performs very well, where the white balance was stabilised and previous deviations eliminated. After professional tuning it's really hard to fault anything, because the TV delivers an image with almost exemplary naturalness and three-dimensionality. The slightly lower score in this category compared with the QD-OLED variant is solely due to the saturation limitation in extremely bright scenes, while the tuning potential and colour fidelity are at the highest level.

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.

When it comes to banding reduction itself, Samsung has kept the same solutions known from last year’s models. The dedicated gradient-smoothing function works quite well and can effectively mask unwanted tonal transitions, which can be useful on a WOLED panel that’s somewhat more prone to banding. However, it’s important to remember it acts aggressively. This mechanism, aside from the artefacts themselves, can remove fine film grain and subtly soften detail. Ultimately it’s a trade-off, but if you want perfectly faithful image reproduction, it’s safer to leave this option off.

There’s also no breakthrough in scaling. The S90H uses the same NQ4 Gen3 processor as its predecessor, so upscaling quality was almost identical. The chip sharpens lower-resolution material very well, pulling a satisfying level of detail out of it. However, Samsung still hasn’t solved the old overscan problem. For some older recordings or archival footage the edges of the image can be slightly cropped. It’s a minor drawback, but it’s a shame the manufacturer still hasn’t fixed it.

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.

When it comes to motion handling the S90H is simply excellent. This year's panel offers its refresh rate boosted to 165 Hz, although in practice the benefit will mainly be for gamers connecting a powerful PC. For movies, TV 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, the OLED panel's lightning-fast response time does the job. Motion is clean, and the ghosting or smearing seen on LCDs simply doesn't occur here.

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.

Gamers should feel right at home with the S90H, because Samsung has left few reasons to complain in this area. The TV has four HDMI 2.1 ports, each supporting 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. In last year's models it could cause issues when used with a console, but on the S90H it now works as it should. What really stands out against the competition is Game Motion Plus. It's a specialised motion-smoothing mode for games that works best with titles running at 30 or 60 frames per second. Motion becomes noticeably smoother and 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 big 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 the more useful feature.