Philips PML8709 vs Dreame S100

Looking at the contrast results, we expected that the algorithms responsible for the zones in the Philips PML8709 would be at least decent. However, what we encountered during testing is hard to explain. The maximum brightness we were able to achieve was only 350 nits, which is definitely too low to fully enjoy HDR effects. In practice, the TV barely stands out against an average SDR. The situation becomes even more surprising in the case of test scenes, such as the second one from the movie Life of Pi or Sicario 2. Small light elements reach only 120 nits there, making them practically invisible. Such a level of brightness is completely inadequate to modern HDR standards and significantly diminishes the viewing experience of high-quality content. The only bright spot in this category is the very good coverage of wide color gamuts – 97% DCI-P3 and 83% BT.2020. This ensures that colors are saturated and well reproduced, which can improve the overall viewing experience of HDR materials, even if just a little. However, the lack of appropriate brightness means that even this cannot save the Philips PML8709 in this category.

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.

Although theoretically the Filmmaker mode on the Philips PML8709 should provide natural color reproduction, in reality it resembles a store mode more. In the white balance, both for HD and 4K content, there is a clear dominance of blue. This makes the image appear washed out and cold, which is particularly noticeable in the comparison picture below.

The brightness characteristics also leave much to be desired. Both the gamma and the EOTF curve show excessive screen brightness. As a result, there is a loss of detail in both the brighter and darker parts of the image, which further diminishes its credibility and naturalness. Bright elements appear unnaturally flat and little varied.

These significant problems in white balance and brightness characteristics lead to noticeable color reproduction errors, which can be easily seen in films as well as in the Colour Checker test. The colors are imprecise, affecting the overall image quality and visual experience. The factory settings require substantial improvement to fully enjoy the potential of this television.

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.

Philips offers advanced image calibration tools in its televisions, which we decided to fully utilize. The effects? While we managed to improve many aspects, it was not without difficulties. White balance was one of the biggest challenges – despite our efforts, it can be called a battle against windmills. We managed to correct it significantly, making the image look much better than in the factory settings, but it is still far from perfect. Particularly in some scenes, a subtle dominance of blue is noticeable, though not as intense as before. We achieved significant improvement in brightness characteristics – gamma now presents itself much more stably. The EOTF curve looks correct at first glance; however, when analyzing film content, it becomes evident that the television has difficulty maintaining the appropriate characteristics. The algorithms "struggle" to adjust brightness, which may result from the limited number of dimming zones that do not always cope with more complex scenes. Overall, the image after calibration looks much more pleasant to the eye – colors are more natural, and errors in color reproduction have been minimized. Although it's still not perfect, the Philips PML8709 now presents itself much better than in the factory settings.

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 distortion reduction function in the Philips PML8709 smooths tonal transitions, but its effectiveness leaves much to be desired. We recommend setting this option to "Medium" – at this level, the effect is noticeable but not excessive. Unfortunately, compared to other Philips models, the smoothing effect is less effective, meaning that some tonal transitions may still appear slightly uneven. An additional drawback is that this function also smooths other details, such as material textures like shirts, which can affect image sharpness.

As for image scaling, the television performs very well. The image appears plastic and free of noticeable "jaggies." This effect may appeal to many users, although some may prefer a more pronounced look. Fortunately, the television allows for adjusting the sharpness parameter, enabling us to tailor the image to individual preferences.

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.

Philips PML8709 is one of the few models with mini-LED technology on the market that offers a refresh rate of 60 Hz. Although it is not a panel for the most demanding gamers, it should satisfy those who mainly watch movies. The television is equipped with the "Motion Style" feature, which is a motion smoother that allows you to adjust the fluidity of motion according to your preferences – from a more "plastic" appearance to a cinematic aesthetic with clearly visible frames.

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.

Philips PML8709 is a television aimed more at occasional gamers, mainly due to its 60 Hz panel, which does not meet the expectations of the most demanding users. However, for those who appreciate gameplay at a more measured pace, this model may prove sufficient.

The television offers several gamer-friendly features, such as ALLM (automatic switching to game mode) and VRR (variable refresh rate), which help in displaying images more smoothly without annoying stutters. Moreover, in terms of HDR, we find here the implementation of HGiG, which adjusts the HDR effect to the specifics of games, providing a more natural image in appropriately optimized titles. Unfortunately, there is no support for Dolby Vision mode, which may be felt in games that utilize this format.

A nice addition is the presence of a basic "Game Bar," which allows for quick preview and modification of key settings related to gaming. It's a simple yet helpful feature, especially for those who often change their setup between different types of gameplay. Despite certain limitations, the Philips PML8709 offers a solid set of features for less demanding gamers.

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.