Hisense U7Q vs Dreame S100

Since the algorithms responsible for blacks are performing quite well, we expected a similarly good effect regarding brightness and overall HDR quality. Unfortunately – here we have to disappoint you a bit.

The U7Q is a sufficiently bright television – under the best conditions, it can achieve around 800 nits, which indeed impresses on some scenes, especially in scenes like those from the film The Meg. Bright areas can shine, and the HDR effect is noticeable. The problem arises when there are very small, bright elements on a dark background – for example, in Sicario 2 or in the second scene from the film Life of Pi. In such moments, the dimming algorithms work too aggressively. Yes, the blacks look great then, but the brightest points can almost completely disappear, causing the HDR effect to vanish and the details to be barely visible. It's just the nature of this technology in this price segment.

As a consolation, it's worth mentioning that the U7Q is marketed as QLED (in practice, a PFS layer is used, which works very similarly), and it is indeed capable of displaying a wide colour palette – a DCI-P3 coverage of around 94% is a very good result for this class.

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 when considering the competition at this price point. In fullscreen scenes, it is evident that the television can produce an image that impresses with its brightness. Unfortunately, when more complex scenes appeared on the screen, the local dimming algorithm in this model primarily focused on maintaining the deepest blacks. However, this came at the expense of HDR performance – and in a drastic manner. In such scenes, the brightness of bright elements dropped below 100 nits, which is a frankly tragic result, far from any HDR effect. One can improve this aspect, but not without a "however." It is simply necessary to change the local dimming setting in the television's menu, but then the blacks in such scenes simply become grey. It's a pity that Dreame couldn't better refine the local dimming algorithms, and the S100 is another example that the sheer number of local dimming zones does not always translate to a better image. As a consolation, it is worth adding that the Dreame S100 is advertised as a "QLED" type television, although in reality it uses a PFS LED filter. As a result, the colours are appropriately saturated, and the colour gamut coverage of DCI-P3 we measured exceeded 94%.

We tested the U7Q in the best possible picture mode, which is Filmmaker Mode. This is the mode that is supposed to provide the most "filmic" and creator-intended experience – right out of the box. Unfortunately… even this professionally sounding name does not guarantee a perfect picture.

In our unit, the problem lay in the incorrectly set white balance. Both in HD and 4K content, the picture had too much blue and red, which caused the screen to take on a slightly rosy tint. It didn't look terrible, but it was noticeable – especially in bright scenes and white backgrounds. This alone could perhaps be forgiven, but the biggest problem is managing brightness in HDR content. The EOTF curve from measurements confirms what we saw earlier during scene tests: the television can overly darken the smallest bright elements, causing them to nearly disappear, or on the contrary – excessively brighten the brightest ones, which affects the naturalness of the picture.

We tested the Dreame S100 in 'movie' mode and we definitely recommend using this setting for watching all types of content. Interestingly, within the deeper settings of the television, 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 - even motion smoothing. So, how do the factory colours of the S100 fare? Not too badly, but also not the best. The television itself was quite heavily tinted with blue components, which is clearly visible in our white balance measurements. This made the picture artificially brightened, and the colours had a slight bluish tint. This is confirmed by the Color Checker palette, which showed how the colour samples tend to drift towards blue, generating quite significant colour errors. The picture in HDR mode looked definitely better, where the colour errors were not as prominent, although they still fell far from perfection. Here, the white balance was also shifted too much towards blue, causing considerable errors in colour reproduction.

Thanks to specialised tools, we managed to correct the colour quality in SDR content to nearly perfection. In materials with lower dynamic range, the delta E errors dropped below 0.5, which can be regarded as an almost reference result. The picture on television, YouTube, or classic Full HD looks really very good after calibration. Alright – but where did we not manage to improve the image so easily? Primarily, it concerns HDR quality content. Although we managed to somewhat 'tame' the white balance and eliminate pink tints in most scenes, unfortunately, we no longer had full control over brightness management. We set the local dimming settings according to the best observations – SDR: Medium, HDR: High – but the U7Q still did everything a bit its own way. There were still cases of excessive dimming or brightening of details that calibration simply could not eliminate. And although the overall reception of the content is significantly better, one must reckon that the U7Q will always have something to say at the end with an 'but'.

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 advanced white balance correction – both in SDR and HDR content – we completely eliminated the excess blue components. The image immediately became much more natural and pleasant to the eye. After fully tuning the colours, the errors in the Color Checker test dropped below Delta E values of 2-3. For the average viewer, this means that any colour distortions have become nearly impossible to perceive with the naked eye. This is truly a pleasant surprise, as new brands in the television market often encounter significant issues with the correct implementation and functioning of sliders in the calibration menu. Here, everything worked as it should. The only thing we must criticise is the way the television manages its brightness in HDR. Due to the specific nature of the local dimming algorithms, anomalies can be seen on the EOTF curve we measured. Where high highlights should appear, there is a slight boosting of the curve above the reference line. In practice, this causes an unnatural brightening of some of the brightest elements in films or games. Despite this minor flaw, professional calibration brings about a huge, very positive change in this model.

There are situations where we would like to smooth out tonal transitions a bit, especially in older materials – those with limited source quality. The U7Q is equipped with a feature called "Smooth and Gradient Image," but unfortunately... it works very poorly. In the "Low" option, the effects are practically unnoticeable, and other settings smooth details but do not improve tonal transitions. The only positive aspect is that the feature does not interfere with film grain, so it does not ruin the natural structure of the image.

Fortunately, upscaling content performs quite well. The image is not excessively sharpened, and there is no artificial clarity – and although it is known that this is not the level of high-end televisions, the U7Q handles displaying really old content in a completely acceptable manner without any issues.

For scaling and digital processing in the Dreame S100, the technology that the manufacturer proudly calls Dreamind™ Pro AI is responsible. However, it must be clearly stated that this is not a proprietary processor, but merely a marketing name for a chip made by MediaTek – more precisely, the MT5889 model. 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 that is what this chip also deals with. The upscaling in the S100 is quite mediocre, and the processor has a tendency to heavily and artificially sharpen edges (fortunately, this can be somewhat tempered with the sharpness slider in the menu). In the options, we also find the "Contour Smoothing" feature, which theoretically is supposed to improve tonal transitions. In practice, it offers almost no improvement – setting it to any level rarely eliminates visible banding of colours, but it can unnecessarily blur elements of the image that should remain sharp.

A separate issue is the phenomenon of overscan (cropping the edges of the frame), which is noticeable here practically all the time. Although there is an option to set the screen to display the full frame in low-resolution materials, this requires activating the previously mentioned Filmmaker mode. And as you know, this mode completely blocks the adjustment of any other sliders in the picture menu. In our test tables, we marked that the television offers an option to disable overscan, as technically such a function exists in the system – however, in everyday use, when maintaining sensible image settings, you will not be able to take advantage of it.

U7Q is indeed a very fast television, just like its more powerful version "PRO". At a resolution of 4K, it supports up to 144 Hz refresh rate, and if someone wants even more – in Full HD, you can achieve up to 240 Hz! This will mainly benefit PC gamers, but it is worth appreciating – it is a rarely seen feature in this price segment. Right from the start, it is clear that the U7Q has been designed with dynamic content in mind, such as games or sport. In films, we are not left "out in the cold" either – the U7Q offers an "Ultra Motion Smoothness" feature, where using two sliders you can adjust whether you prefer a smoother, theatrical image or something closer to a cinematic style with a visible film frame. It is good that, as with most manufacturers, we have a choice here as well and can adjust it to our own preferences.

When it comes to motion fluidity, the Dreame S100 performs really well. It features a panel with a refresh rate of 144 Hz, although in reality, the vast majority of people using it in a traditional way will still be limited to 120 Hz (as this is the maximum supported by today's equipment apart from PCs). Thanks to the high refresh rate, the image in motion remains really sharp, largely thanks to the well-functioning MEMC smoother. In the menu, we find predefined modes that allow the television to efficiently generate artificial frames, which effectively improves the fluidity of dynamic sports scenes, but also eliminates image stuttering in film and series materials recorded at 24 frames.

The Hisense U7Q is a television designed with gamers in mind – and this is immediately evident from its gaming capabilities. It has practically everything you could wish for: variable refresh rate (VRR) – check, automatic game mode (ALLM) – check, and on top of that, high refresh rates of up to 240 Hz in Full HD and support for various resolutions, not just 4K. This is truly a great set of features that makes the U7Q perform well both in fast-paced first-person shooters on consoles and in more demanding titles on PC. Of course – as with most Hisense models – there is a lack of proper implementation of the HGiG feature. It's a shame because HGiG allows console brightness to be matched to a specific television, which in practice makes displaying HDR games according to the creators' intent much easier. Without this, you simply have to reckon with certain limitations in the final HDR image in games.

The Dreame S100 seems almost like the perfect screen for a gamer. The television is equipped with 2 HDMI 2.1 ports with a bandwidth of 40 Gbps, which means that functions like automatic game mode (ALLM) and variable refresh rate (VRR) ranging from 48 to 144 Hz work seamlessly on consoles. It also features a well-designed gaming panel (Game Bar), allowing users to continuously monitor important parameters—from active picture modes to the number of frames rendered by the console, and even the option to add a crosshair in the middle of the screen. All of this looks great on paper; however, the biggest problem with the S100 is the implementation of HDR mode in games. The television does not have the HGiG format implemented correctly. As a result, an unsuspecting user may incorrectly configure the console when first using the screen. Poor configuration can lead to an image that is too dark or too washed out (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 would not activate at all between the XBOX and Dreame S100. And when it was finally managed to be activated, playing was not possible due to a very high input lag often exceeding 100ms. If the manufacturer can improve the HDR issue in games via an update, the S100 will be truly excellent hardware for gamers. For now, however, compromises need to be accepted.