Dreame S100 vs Samsung R85H / R86H

The Dreame S100 is a relatively bright television. In movie mode, the brightness we measured reached around 600 nits. This is a really good result, although not the highest considering the competition in this price range. In full-screen scenes, it's clear that the television can generate an image that hits the mark in terms of brightness. Unfortunately, when more complex scenes appeared on the screen, the local dimming algorithm in this model tried above all to maintain the deepest blacks. However, this came at the expense of the HDR effect – and in a drastic way. In such scenes, the brightness of the bright elements fell below 100 nits, which is a downright tragic result, far from any HDR effect. This aspect can be improved, but there are caveats. You just need to change the local dimming setting in the television's menu; however, then the blacks in such scenes simply turn grey. It's a pity that Dreame wasn't able to refine the local dimming algorithms better, and the S100 is another example that the number of local dimming zones doesn't always translate into a better picture. As a consolation, it's worth noting that the Dreame S100 is marketed as a 'QLED' type television, although it actually uses a PFS LED filter. As a result, the colours are appropriately saturated, and our measured DCI-P3 colour gamut coverage exceeded 94%.

When it comes to brightness, the R85H performs quite well. In most of our test scenes the TV reaches around 800–900 nits, and with larger bright elements it can exceed 1000 nits. These aren't, of course, on the level of the most expensive Mini-LEDs, but they're more than enough for watching films and TV series in HDR and the effect can be quite noticeable. The problem reappears in more demanding scenes, where there's a small bright element on a very dark background. Here the TV can greatly reduce its brightness to avoid lighting up too much of the screen. In our measurements such small highlights fell as low as around 200–250 nits, so it's clear that a limited number of local dimming zones combined with the specific behaviour of the algorithm has consequences here. Fortunately, it doesn't affect viewing all the time. In typical, mixed HDR scenes the R85H looks good and can provide good image dynamics. It's just that with very small points of light you shouldn't expect as strong an effect as on TVs with a much larger number of zones or on OLEDs.

We tested the Dreame S100 in "movie" mode and definitely recommend using this setting for watching all kinds of content. Interestingly, in the deeper settings of the TV, we also find a dedicated "Filmmaker" mode, which is now available from almost every manufacturer. However, in the case of the Dreame S100, we do not recommend using it – it blocks all settings related to the picture and does not allow for any configuration in the menu - not even a motion smoother. So how do the factory colours fare in the S100? Not too bad, but not great either. The TV itself had a noticeable blue tint, which is clearly evident in our white balance measurements. As a result, the picture was artificially brightened, and the colours had a slight bluish tint. This is also confirmed by the Color Checker palette, which showed how the colour samples leaned towards blue, generating quite significant colour errors. On the other hand, the picture looked definitely better in HDR mode, where the colour errors were not as prominent, although they were still far from ideal. Here, the white balance was also too heavily skewed towards blue, causing quite significant errors in color reproduction.

In Filmmaker mode our R85H sample in SDR performed adequately, but a few issues immediately stood out in the measurements. In the white balance, as brightness increased more red was added while blue decreased. As a result, the brighter parts of the image had a slightly too-warm tint. Gamma only held the target value at the start. It then gradually fell, which left most of the image a little too bright. The combination of these two factors also affected the colours, with errors growing particularly in the brighter and more saturated samples. It did not look bad, but for Filmmaker mode we expected a bit more accuracy. Interestingly, our sample fared noticeably better in HDR. The white balance was much more even and the individual components stayed close to one another across most of the range. Only in the brightest parts did red start to be lacking, causing white to shift subtly. The EOTF curve looked very good, tracking the target luminance across almost the entire range. That does not mean HDR colours were perfect. The Colour Checker still shows some deviations, especially for some of the more saturated colours, but the errors are clearly smaller than in SDR.

The Dreame S100 has proven to be a device very amenable to professional calibration. In its menu, we found a plethora of advanced options that allowed us to effectively correct factory errors. Thanks to the advanced white balance correction – both in SDR and HDR content – we completely eliminated excess blue components. The image instantly became much more natural and pleasant to view. After fully tuning the colours, the errors in the Color Checker test dropped below a Delta E value of 2-3. For the average viewer, this means that any colour distortions became almost impossible to see with the naked eye. It's really a nice surprise, as often new brands in the TV market have significant problems with the correct implementation and functioning of sliders in the calibration menu. Here, everything worked as it should. The only thing we need to criticise is the way the TV manages its brightness in HDR. Due to the specific nature of the local dimming algorithms, our measured EOTF curve shows anomalies. In places where high highlights should appear, there is a slight bump in the curve above the reference line. In practice, this results in unnatural brightening of certain, the brightest elements in movies or games. Despite this minor flaw, professional calibration brings a huge, very positive change to this model.

After calibration the R85H shows it has really substantial colour reproduction capabilities. SDR performed best: white balance could be brought almost perfectly into line, and gamma stays very close to the target value across most of the range. That also translated into very low errors in the ColorChecker, so there's really little to criticise here. HDR also shows a clear improvement, although some issues can't be corrected as well. At the highest brightness levels the character of the backlight itself becomes apparent and the individual components of the white balance begin to diverge. The same applies to the most saturated colours, which don't always land exactly where they should. Despite these limitations the overall picture is considerably more accurate than factory settings, and the biggest difference is definitely visible in SDR. However, there is one thing calibration can't fix. With heavily saturated elements the colour can slightly bleed onto adjacent bright areas of the image. It's easiest to notice on white, which can pick up a faint tint of a neighbouring hue. It doesn't occur in every scene, but when the material is demanding the effect can be visible. This is more a feature of the way the RGB backlight operates than an issue with picture settings.

For scaling and digital processing in the Dreame S100, the technology used is proudly called Dreamind™ Pro AI by the manufacturer. However, it must be clearly stated that this is not a proprietary processor but rather a marketing term for a chip from MediaTek – specifically, the model MT5889. Unfortunately, we are talking about a rather outdated unit from a time when MediaTek lagged significantly behind the competition in terms of performance. This, unfortunately, has a direct impact on the image, as this chip also handles that. The upscaling in the S100 is fairly average, and the processor has a tendency to artificially over-sharpen edges (fortunately, this can be somewhat tempered with the sharpness slider in the menu). In the options, we also find a feature called "Contour Smoothing," which theoretically is supposed to improve tonal transitions. In practice, it contributes almost no improvement – setting it to any level rarely eliminates visible colour banding, but it can unnecessarily blur elements of the image that should remain sharp.

Another issue is the phenomenon of overscan (cropping the edges of the frame), which is practically visible all the time. Although there is the possibility to set the screen to display the full frame in low-resolution materials, it requires activating the aforementioned Filmmaker mode. And as you may know, this mode completely blocks any changes to other sliders in the picture menu. In our test tables, we noted that the television offers an option to disable overscan, as such a function technically exists in the system – however, in everyday use, while maintaining reasonable picture settings, you will not be able to take advantage of it.

In the R85H, image processing is handled by the Micro RGB AI Processor. The name is new, but when it comes to upscaling lower-quality sources, the TV's behaviour is very similar to what Samsung has shown before. And that's not a bad thing, because Samsung has handled this aspect quite well for years. Lower-resolution material is displayed cleanly, edges don't become overly soft, and the TV doesn't try to artificially extract detail at all costs. The result is simply balanced, and for regular TV or older recordings the R85H performs as you'd expect from Samsung at this level. There's still a small downside: overscan, which can't be completely switched off at the lowest resolutions. Another matter is the extra processing applied to low-quality sources. The R85H can smooth posterization and tidy up heavily compressed footage, but it's worth emphasising that it does so relatively aggressively. At stronger noise reduction settings it starts removing not only compression artefacts but also fine detail and the natural film grain. So it's best to use it only when the source actually needs it.

When it comes to motion fluidity, the Dreame S100 performs really well. It features a 144 Hz refresh rate panel, although in reality, the vast majority of people using it in a conventional way will still be limited to 120 Hz (as this is what today's hardware allows aside from PCs). Thanks to the high refresh rate, the image in motion remains really sharp, largely due to the well-functioning MEMC motion smoother. In the menu, we find predefined modes that enable the TV to efficiently generate artificial frames, which effectively enhances the fluidity of dynamic sports shots, but also helps eliminate motion judder in film and TV series material recorded at 24 frames.

R85H has a 144 Hz panel, so motion handling is really good here. You should remember that the extra hertz above 120 will mainly be used when connected to a computer, so in this category we don't treat them as any particular advantage. For films and TV, what's more important is that the panel is fast enough to provide access to an advanced motion smoothing feature, "Motion Clarity", which lets us set motion from more film-like to very smooth. The panel's response time is a bit worse. Since it's a VA panel, fast-moving objects can leave a slight trail. On a bright background this isn't very noticeable, but the darker the scene, the more noticeable the smearing becomes. This is a typical characteristic of this type of panel and it's easiest to spot in dark scenes.

The Dreame S100 seems almost like the ideal screen for gamers. The television is equipped with 2 HDMI 2.1 ports with a bandwidth of 40 Gbps, allowing features such as automatic game mode (ALLM) or VRR frame synchronization in the range of 48-144 Hz to work seamlessly on consoles. On board, we also find a well-designed gaming panel (Game Bar). It allows you to continuously preview the most important parameters - from the activated picture modes, to the number of frames rendered by the console, right through to the option of adding a crosshair in the centre of the screen. All of this looks great on paper; however, the biggest issue with the S100 is its implementation of HDR in games. The television does not have a correctly implemented HGiG format. This means a clueless user may misconfigure the console during the initial setup of the screen. Poor configuration can result in an image that is too dark or overexposed (as a guideline: we suggest setting the brightness in the Xbox console menu to around 600 nits, and in the PS5 to 12 clicks). The Dolby Vision format also proves problematic, as it often did not activate at all on the XBOX – Dreame S100 line. And when it was eventually activated, playing was impossible due to the very high input lag often exceeding 100ms. If the manufacturer manages to improve the HDR gaming experience with an update, the S100 will be truly outstanding hardware for gamers. For now, however, compromises must be accepted.

Samsung has been steadily expanding its gamer features for several years, and the R85H really doesn't lack anything important. The TV supports 4K at 120 Hz, VRR and ALLM, so it can easily make full use of the PlayStation 5 or Xbox Series X. HGiG also works properly, so when HDR is set correctly on the console, games maintain their intended brightness and you don't unnecessarily lose detail in the brightest parts of the image. The only bigger omission is Dolby Vision Gaming, which Samsung doesn't support on any of its TVs.

The Game Bar is also very useful, a handy menu you can bring up without leaving the game. You can quickly check the frame rate, VRR status or change the key picture settings. Samsung also includes a few less obvious features, like the ability to change the aspect ratio or Game Motion Plus, which can further smooth games running at 30 or 60 fps. Of course this comes at the cost of higher input lag (around 55 ms), but for slower-paced titles it may be an interesting option for some.