Hisense U7S Pro vs Dreame S100

Let’s start by saying that the U7S Pro is an impressively bright television – in calibrated mode, our measuring equipment indicated a staggering 2200 nits of peak brightness! This is an impressive result, considering that this model is positioned as mid-range.

However, as we know, peak brightness on test patterns is one thing, and actual movie scenes are another. Unfortunately, in real video materials, the backlight power clearly drops. While in the most demanding moments the television can still exceed the 1000 nit barrier – which is still a great result, perfectly fitting the mastering standards of most HDR films – the truly challenging aspect turns out to be the aggressively tuned local dimming algorithms. Because of them, small, bright details, such as stars or the moon in the night sky, are noticeably dimmed. The television tries at all costs to maintain deep black levels, which is of course understandable, but unfortunately, this comes at the cost of dynamics and the brilliance of the HDR effect itself.

The color reproduction is worth praising. The new U7S Pro is a QLED construction that provides very wide color gamut coverage. Unlike last year's model (U7Q Pro), this year's variant is now a “true” QLED, rather than a solution based on a PFS filter. As a result, color saturation has noticeably increased, and coverage of the most demanding BT.2020 space has exceeded the 81% barrier.

The Dreame S100 is a relatively bright television. In movie mode, the brightness we measured reached about 600 nits. This is a really good result, although not the highest, considering the capabilities of the competition in this price range. In fullscreen scenes, it is evident that the television can generate an image that strikes with 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 HDR effect – and in a drastic way. In such scenes, the brightness of bright elements dropped below 100 nits, which is a truly tragic result, far from any HDR effect. This aspect can be improved, though not without any "buts." It is enough to change the local dimming setting in the television's menu, but then the blacks in such scenes simply turn gray. It’s a pity that Dreame could not refine the local dimming algorithms better, and the S100 is another example that the mere number of local dimming zones does not always translate into better image quality. As a consolation, it is worth adding that the Dreame S100 is advertised as a "QLED" television, although in reality it utilizes a PFS LED filter. As a result, the colors are appropriately saturated, and the color gamut coverage we measured exceeded 94% of the DCI-P3 palette.

We tested the U7S Pro model – as always – in the best factory-tuned picture mode, which is Filmmaker Mode. We can evaluate the displayed colors in two ways. The most disappointing was the profile intended for watching SDR content, such as traditional television, YouTube, and other less demanding materials. The picture was clearly too yellow, which turned out to be a direct consequence of a poorly set white balance. As our graphs show, there is a huge deficiency of the blue component here, which drastically affected the overall color temperature. This is clearly evident on the ColorChecker charts and the graphs of the color palette itself, where most samples veered toward yellow. Fortunately, the factory HDR mode performed significantly better – there, the color errors hovered around a Delta E value of 3, which is already a really solid result.

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 available today from almost every manufacturer. However, in the case of the Dreame S100, we do not recommend using it – it blocks all image-related settings and does not allow any configuration in the menu - not even motion smoothing. So how do the factory colors perform on the S100? Not too bad, but also not great. The TV itself was quite heavily tinted with blue components, which is clearly visible in our white balance measurements. This caused the image to be artificially brightened, and the colors had a slight bluish tint. This is confirmed by the Color Checker palette, which showed how color samples leaned towards blue, generating quite significant color errors. The image in HDR mode looked definitely better, where color errors were not as prominently visible, though they still fell far from ideal. Here, the white balance was also too heavily skewed towards the blue color, which caused quite significant errors in color reproduction.

However, we know that the Hisense company can do much more – as previous generations have proven – which is why we simply couldn't leave the factory flaws of the U7S Pro model in everyday content. As always in such cases, we subjected the television to professional calibration. The conclusions? This process brought about a colossal change. After manually adjusting the white balance and compensating for the deficiencies in the blue component, the annoying yellow tint disappeared like magic. The white became naturally pure, and skin tones gained the proper, healthy hue. Importantly, the calibration not only tamed the capricious SDR mode but also allowed us to squeeze the maximum from the panel's potential, reducing the average color reproduction errors to values almost imperceptible to the human eye. The only thing we have to nitpick after the entire process is the very nature of the Mini-LED backlighting and its specific cooperation with the HDR signal. The aggressively tuned local dimming algorithms significantly interfere with the EOTF brightness curve. As a result, the backlighting does not always work perfectly with the creator's intent – depending on the scene being viewed, the curve can noticeably run either above or below the reference, which at times disrupts the perfect dynamics of HDR image.

The Dreame S100 turned out to be a device very susceptible to professional calibration. In its menu, we found a whole array of advanced options that allowed us to effectively correct factory errors. Thanks to advanced white balance correction – both in SDR and HDR content – we completely eliminated excess blue components. The image immediately became much more natural and pleasant to view. After fully tuning the colors, errors in the Color Checker test dropped below Delta E values of 2-3. For the average viewer, this means that any color distortions have become nearly impossible to notice with the naked eye. This is a really nice surprise, as often new brands in the television market have significant problems with proper implementation and functioning of sliders in the calibration menu. Here, everything worked as it should. The only thing we need to criticize is the way the television manages its brightness in HDR. Due to the specific nature of the local dimming algorithms, we observed anomalies in the EOTF curve we measured. In the areas where high highlights should appear, there is a slight uplift of the curve above the reference line. In practice, this results in unnatural brightening of some of the brightest elements in movies or games. Despite this minor flaw, professional calibration brings a huge, very positive change to this model.

The digital processing of lower quality signals is at a very high level here, thanks to the MediaTek Pentonic 800 processor utilized in the U7S Pro. The upscaling itself, which is the TV's ability to enhance lower resolution signals to 4K, is also performing well. We did not notice any unnatural, sharp edges on the screen, and our test image with the model looked simply attractive.

The scaling and digital processing in the Dreame S100 is handled by a technology that the manufacturer proudly calls Dreamind™ Pro AI. However, it is essential to clarify that this is not a proprietary processor but merely a marketing name for a chip from MediaTek – specifically, the model MT5889. Unfortunately, we are talking about quite an outdated unit, from the time when MediaTek lagged significantly behind the competition in terms of performance. This, unfortunately, has a direct impact on the image, as this chip is responsible for that as well. The upscaling in the S100 is rather mediocre, and the processor tends to strongly and artificially sharpen edges (fortunately, this can be somewhat tempered with the sharpness slider in the menu). In the options, we also find a "Contour Smoothing" function, which theoretically is supposed to improve tonal transitions. In practice, it brings almost no improvement – setting it to any level rarely eliminates visible color banding but can unnecessarily blur elements of the image that should remain sharp.

A separate problem is the phenomenon of overscan (clipping the edges of the frame), which is almost always visible here. Although there is an option to set the screen to display the full frame in low-resolution materials, it requires activating the aforementioned Filmmaker mode. And as you already know, this mode completely blocks any other adjustments in the image menu. In our test tables, we noted that the television offers the option to disable overscan, as technically such a feature exists in the system – however, in everyday use, with reasonable image settings, you will not be able to take advantage of it.

The Hisense U7S Pro features a panel with a maximum refresh rate of 165 Hz in 4K, and in game mode, it can reach up to 330 Hz at Full HD resolution. However, it's important to note that these highest numbers have little significance in everyday use, as most content supports a maximum of 120 Hz (e.g., while gaming on a console). Nevertheless, the TV handles motion quite well and performs really decently for an LCD construction.

There's hardly anything to complain about regarding fluidity. In the menu, we find a motion smoothness enhancer called "Motion Enhancement," which hides two sliders: blur reduction and judder reduction. They allow for manual configuration of the smoothness enhancer, which works well for both movies and sports, effectively improving the raw television signal.

When it comes to motion fluidity, the Dreame S100 performs really well. It features a panel with a 144 Hz refresh rate, although in reality, the vast majority of users using it in a traditional way will still be limited to 120 Hz (because today's equipment, apart from PCs, only allows for such values). Thanks to the high refresh rate, the image in motion remains really sharp, largely due to the well-functioning MEMC fluidity enhancer. In the menu, we find predefined modes that allow the TV to efficiently add artificial frames, which effectively improves the fluidity of dynamic sports shots, but also helps get rid of image stuttering in film and series materials recorded at 24 frames.

If you plan to connect a console or PC to the U7S Pro, you will be more than satisfied – this television is excellent equipment for gamers. Hisense didn't spare any expense and included 4 HDMI 2.1 ports with full bandwidth of 48 Gbps. You won't need to juggle cables, as each port will handle the full package of features. We have an automatic game mode (ALLM) and VRR, which works over a wide range from 48 Hz to a cosmic 330 Hz. Of course, those 330 Hz are currently just a gimmick for owners of powerful PCs, as consoles will still be limited to 120 Hz, but it's good to have that reserve for the future. The Game Bar also works very well during gaming. It's a handy menu bar for gamers, where you can quickly change the picture mode, turn on a crosshair in the center of the screen, and even change the aspect ratio to ultra-wide without going into the main settings of the television, which PC simulator fans will appreciate. The only downside worth noting is the incorrect implementation of the HGiG format in games. This means that the television ignores the instructions from the console regarding the image generated in HDR10 and constantly meddles with the image it produces, trying to "enhance" it in its own way. Because of this, the correct configuration of HDR in the console menu (where brightness is set on the logo/checkerboard) is somewhat complicated.

The Dreame S100 seems almost like the perfect screen for gamers. The TV is equipped with 2 HDMI 2.1 ports with a bandwidth of 40 Gbps, which means that features such as Auto Low Latency Mode (ALLM) and Variable Refresh Rate (VRR) synchronization in the range of 48-144 Hz work seamlessly on consoles. It also has a well-designed game panel (Game Bar) that allows you to continuously check the most important parameters – from active picture modes to the number of frames rendered by the console, and even the ability to add a crosshair in the center of the screen. All of this looks great on paper, but the biggest issue with the S100 is the implementation of HDR mode in games. The TV does not have a properly implemented HGiG format. As a result, an unsuspecting user may incorrectly configure the console during the initial setup of the display. A wrong configuration can lead to a picture that is too dark or too bright (as a guideline: we suggest setting the brightness in the Xbox console menu to about 600 nits, and in the PS5 to 12 clicks). The Dolby Vision format is also problematic; it often just would not activate at all when using the XBOX – Dreame S100 line. And when it was managed to be activated, gaming was impossible due to a very high input lag that often exceeded 100ms. If the manufacturer can improve the HDR issue in games through an update, the S100 will be truly excellent equipment for gamers. For now, however, one must reckon with compromises.