Samsung DU7192 (VA) vs Sony X75WL

On the luminance charts, the peak brightness of the television is around 280 nits. Unfortunately, such a value is too low to fully enjoy the effects of HDR, which require significantly higher luminance. In the tested materials, such as The Meg or Gemini Man, the lack of adequate brightness severely limits the magic of HDR, and details in the brighter parts of the image are not sufficiently highlighted. For users primarily consuming SDR content, this quality level might be acceptable but it is definitely not enough when it comes to HDR. Additionally, a DCI-P3 colour gamut coverage of 82% does not favour presenting HDR content in its full glory. The limited colour range makes it difficult for the television to reproduce vibrant and diverse hues, which is crucial for achieving a cinematic experience.

The luminance chart for the X75WL Sony television showed a maximum value of 350 nits, which unfortunately is not an impressive result. The television does not surprise with its brightness, and all the HDR scenes we tested lacked depth and the appropriate lighting effect that should accompany HDR content. Additionally, the tragic coverage of the DCI-P3 colour palette makes it difficult for the television to reproduce rich colours, which significantly affects the overall viewing experience of HDR content. The lack of adequate brightness and poor colour coverage means that HDR effects are very limited in this model.

The best factory mode we relied on during testing turned out to be "Filmmaker." Although it is the mode that most closely aligns with the creators' intent, it still has some imperfections. In the white balance graph for both SDR and HDR, there is a clear dominance of red, resulting in significant yellowing, particularly noticeable in whites and on actors' faces. In HDR mode, there is also a slight dominance of green, which, however, does not have as large an impact on the perception of the image. The gamma, responsible for brightness in SDR materials, performed quite well, but with one serious reservation. In the darkest parts of the image, it was too low, causing excessive brightening of those scenes, depriving the film of drama and contrast. In the case of HDR, the white balance remains at a similar level, but the EOTF curve graph draws attention. At the beginning, the curve noticeably bulges, leading to strong brightening of the darkest scenes. Then, the result sharply drops below the reference line, resulting in an overly dark image and a loss of dynamics in the brighter parts.

In summary, the "Filmmaker" mode, despite its advantages, needs refinement—especially regarding white balance and proper management of brightness in the darkest and brightest parts of the image. In its current form, it may be acceptable for less demanding users, but for viewers expecting precise image reproduction, it may leave much to be desired.

Colour reproduction tests for the model Sony X75WL are conducted in film mode, which offers the best picture settings but also has its flaws. The biggest issue with the X75WL Sony is the white balance – for both HD and 4K HDR content – which is characterised by a dominance of blue. As a result, the entire image feels too cool. The colour checker confirms these errors, showing that colours lean towards cooler shades. Regarding brightness characteristics, the contrast gamma is at quite a decent level; however, the same cannot be said for the EOTF curve. There are significant issues with maintaining the appropriate brightness – the image is either too bright or too dim, which affects the visual perception of the content.

Even with its lower models, Samsung offers advanced image calibration tools, which allow for significant improvement of factory settings. We took on this task, and the results turned out to be more than satisfactory. The white balance, which previously exhibited a strong yellow tint in both SDR and HDR, has been significantly improved. Although minor deviations from the norm can be observed, the overall effect is much cleaner and more natural than before calibration. As a result, whites and skin tones look much better. We were also able to properly model the gamma in SDR content, allowing for maximum contrast that this television can offer. The EOTF curve, responsible for HDR content, has also been improved – the image is no longer brightened or darkened as drastically as it was before calibration. Despite these successes, HDR content still struggles with high deltaE error values. The main reason lies in the limited brightness of the television, which does not allow for a full representation of the dynamics of HDR content. Nonetheless, after calibration, the image is clearly better and much closer to the creators' intent. For users seeking the best possible quality in this class of equipment, calibration is definitely recommended.

X75WL Sony is one of those cases where image calibration may not be heavily spectacular, but it provides a very good improvement in colour perception. The white balance, both for HD and 4K materials, has been significantly improved – we no longer have a strong dominance of cooler shades. The gamma curve also appears more stable, which translates to better image quality. However, the biggest issue remains the EOTF curve, which is responsible for brightness in 4K materials. Due to the technological limitations of the television (IPS panel and lack of local dimming technology), it's hard to talk about significant improvement, as we can't squeeze more out of this model. Despite these limitations, the tonality of the image has been significantly improved.

The tonal transition smoothing feature works in two modes – 'off' and 'auto'. Turning it off causes gradation issues, while the 'auto' mode provides smooth transitions, but at the cost of grain effect and details, which are often blurred. Due to these limitations, we do not recommend using this feature, as confirmed by our tests conducted with it turned off.

Scaling lower resolution materials in this model is not impressive. Details are blurry, and the edges of objects may contain artifacts. This limitation means the television performs better with higher resolution content.

In the case of low-quality tonal transitions, the Sony X75WL television performs poorly. The lack of any feature to improve tonal transitions results in noticeable imperfections in colour gradation. However, it can be noted that the digital processing is quite good – the image is displayed without overscan, and the overall presentation is relatively good thanks to the added slight sharpness, which some users may appreciate.

Even though Samsung DU7192 is the lowest model in the manufacturer's range, it is equipped with a motion smoothing system. While the functionality of this solution is significantly limited compared to more expensive models, its mere presence makes the TV stand out against the competition in this price bracket. The TV supports a maximum refresh rate of 60 Hz, which is sufficient for comfortable viewing of movies and series, but may be inadequate for dynamic content such as sport. In the motion smoothing menu, we find, among other things, a "Vibration Reduction" feature. Unfortunately, its performance leaves much to be desired – regardless of the setting, the image retains the characteristic stutter known from material recorded at 24 frames per second, which means that this feature practically fails to fulfil its purpose.

The X75WL Sony television features a 60 Hz panel, making it more suitable for watching movies than for fast-paced gaming. This model includes a motion smoother called Motionflow, which allows the user to adjust the picture on a 10-point scale. Smoothness adds intermediate frames, thus increasing motion fluidity, and the image becomes more theatrical while minimising the judder effect. Clarity reduces motion blur, which is especially useful during fast-paced scenes, such as sports or dynamic action in films. With this feature, the user can tailor the fluidity and sharpness of motion to their own preferences.

Samsung DU7192 is equipped with HDMI 2.0 ports, which is expected at this price range. This limitation means there is no support for the full capabilities of the latest generation consoles, such as VRR technology. The TV offers only basic features for gamers – automatic switching to low-latency mode (ALLM), and support for basic HDR for games in HGiG standard. HGiG allows for displaying HDR content in games according to manufacturers' guidelines, however, the limited brightness of the TV does not allow full enjoyment of the effects that this standard offers. Unfortunately, there are no conveniences such as GameBar, which is increasingly common even in cheaper models and significantly facilitates quick adjustment of settings for games. The presence of this feature could significantly enhance the user experience, especially for those who frequently switch display modes.

X75WL is not the best TV for gamers. It only has the ALLM (Auto Low Latency Mode) feature and a basic Game Bar, which are not sufficient to satisfy more demanding users. In this price range, one would expect support for features such as VRR or 120 Hz refresh rates – although in FULLHD, which are already standard – unfortunately, they are lacking here. This is a big downside for Sony, as the competition offers much more for gamers in a similar budget.