XIAOMI A PRO 2025 vs Samsung S90H (WOLED)

In the HDR category, the television Xiaomi A Pro is, to put it plainly, lacking. Under ideal conditions, it offers brightness at around 250 nits. This is a poor result; however, in this price range, many competing models offer similar or lower values. Such brightness is too low to fully realise the potential of HDR content. In practice, this means that the image does not gain the appropriate depth and intensity expected from high-quality HDR. These values are more characteristic of standard dynamic range (SDR), which means that the true HDR effect remains beyond the reach of this model, and scenes that should stand out with spectacular brightness and contrast seem flat and lacklustre. However, for its price, the television offers good coverage of the DCI-P3 colour gamut at 92%, thanks to the use of quantum dot technology (specifically PFS LED). This results in vibrant and saturated colours, which will appeal particularly to gamers and film enthusiasts who appreciate richer shades and better colour reproduction compared to traditional televisions without this technology.

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.

The Xiaomi A Pro 2025 television has been tested in movie mode, which offers the best colour reproduction straight out of the box. However, it is worth noting that it is not free from flaws. Analysing the white balance, it can be observed that the values for green are in the negative. This phenomenon leads to some distortions in the shades of white, and with pure white, the graph shows clear deviations. The over-contrasted image results in inappropriate tonal transitions in red, negatively affecting the quality of colour display. Generally, in the image below, it can be seen that the overall scenery before calibration acquires pink hues. Additionally, when analysing gamma contrast, the graph is significantly below the 2.4 value, suggesting that the television overly emphasises dark tones, and the brighter areas of the image may be less vivid. Furthermore, the EOTF curve shows a strong peak at the beginning, which can lead to a loss of detail in bright scenes and an unpleasant feeling of over-drawing. These aspects indicate a need for further calibration to achieve a more balanced colour reproduction and improve the overall image quality. Users who expect precise colour reproduction may be forced to take measures to adjust the television settings to achieve more realistic and natural visual results. In the xiaomi tv a pro 2025, the factory colour settings in Xiaomi are average and may require calibration. After proper colour adjustment, the image gains a natural and vibrant colour palette, much closer to cinematic standards. It is worth adding that the issue of inaccurate colour reproduction is typical for many televisions in this class, meaning it is not a flaw unique to the Xiaomi A Pro 2025 TV. For those who value perfect colour reproduction, professional calibration will prove to be a key element that enhances the overall image quality.

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.

Now it's time to check how the Xiaomi A Pro 2025 television has performed after calibration. The biggest beneficiary of this process is the white balance. After the calibration was conducted, all previous errors were corrected in both HD and 4K content, and most errors no longer fall significantly outside the value of "2". This means a much more balanced and natural colour representation, which certainly affects the viewing comfort. In terms of gamma, the drop was significantly reduced, resulting in a more consistent tonal representation across various scenes. Nevertheless, the EOTF curve has not been significantly improved due to a lack of effective control over dynamic tone mapping. This limitation means that there are still some issues with detail reproduction in bright scenes, which may affect the perception of certain materials. However, despite these minor shortcomings, the overall shape of the image is definitely better after calibration. The television has gained in quality, and the improved white balance along with reduced gamma issues allows users to enjoy a more realistic and pleasant visual experience. Further adjustment of settings may enhance image quality even more, but even now the television demonstrates its capabilities, meeting the expectations of many users.

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.

How does the Xiaomi A Pro 2025 television cope with tonal transitions, especially with lower-quality materials? Thanks to advanced digital processing, the colour contour removal function works surprisingly well. We recommend setting this option to "Medium" – the television significantly improves the fluidity of tonal transitions while avoiding excessive smoothing of other image elements, such as film grain.

In the case of the tested image featuring a model and numerous branches in the background, the Xiaomi A Pro 2025 showcased its capabilities in terms of digital processing. Adding artificial sharpness to this scene made the details of the model more pronounced, and her hair appeared more detailed. However, delicate contours appeared around the branches in the background, which were a result of digital interference. Although this enhances the overall impression of detail, excessive sharpness can make some elements of the image seem unnaturally emphasised.

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.

Xiaomi A Pro 2025 offers a motion smoothing feature called "Motion Smoothing," which primarily works in films. It can be adjusted to prefer either a more cinematic, film-like effect with visible frames, or a smoother, theatre-like image. This function should satisfy those who intend to watch mainly films on it. However, gamers and sports fans may feel disappointed. The 60 Hz refresh rate panel, typical in this price range, does not impress. Our "Ufo" test revealed some motion blur. Those expecting better sharpness of moving objects may be slightly let down.

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.

Xiaomi A Pro 2025 offers several features useful for gamers, including Game Bar, which is different from the typical "dashboards" with interfaces found in other manufacturers' products. Thanks to this, users can quickly access game-related settings, which is convenient during intense sessions. The TV also supports Automatic Low Latency Mode (ALLM), meaning it automatically switches to a mode optimised for gaming, reducing signal latency. Unfortunately, it lacks support for HDMI 2.1, limiting its capabilities for connecting the latest gaming consoles that may require higher bandwidth. Additionally, the TV does not support features such as VRR (Variable Refresh Rate) or G-Sync, which are increasingly desired by gamers, as they allow for smoother visuals and eliminate tearing. For these reasons, although Xiaomi A Pro 2025 has some features for gamers, in this price range, better options can be found that offer more advanced solutions dedicated to gamers.

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.