Samsung QLED Q70D / Q74D / Q77D vs Panasonic W70A

The brightness of the Samsung Q70D is fairly average, yet it delivers a noticeable HDR effect. With brightness exceeding 400 nits, the distinction between SDR and HDR materials becomes evident. As observed in the discussion about contrast and black levels, the TV's performance varies across different scenes. In a scene featuring a bright sun against a darker foreground, the measured luminance is lower. However, in a scene with a large, bright light source dominating the frame, the TV achieves its peak brightness, reaching nearly 500 nits—a commendable result for its price range and display class.

Despite these strengths, the relatively low coverage of the wide DCI-P3 color gamut occasionally results in less vivid color reproduction. Even so, the TV offers rich colors and precise shade reproduction, enhancing the movie-watching experience. Furthermore, the Q70D excels in motion blur elimination during dynamic scenes, making it a solid choice for enjoying sports broadcasts and gaming.

HDR on the Panasonic W70A unfortunately does not impress. Brightness at the level of 250–300 nits is simply too low to feel the true magic of cinematic effects in dynamic, bright scenes. Images that should "explode" with light appear rather flat, and fine details in bright areas often get lost in the average luminance of the panel. On the positive side, the HDR effect is at least stable. The TV does not suffer from excessive brightening nor does it lose details during sudden scene changes. Everything is predictable and calm, though unfortunately not very spectacular. Another issue is the color gamut coverage. The W70A is not equipped with an additional layer of quantum dots (often known as QLED), resulting in colors appearing rather mediocre. There is a lack of depth in reds, saturation in greens, and precision in rendering subtle shades.

The best factory mode on the Samsung Q70D is "Filmmaker," and it is the one we used when conducting various tests. Before the calibration process, it had several flaws that effectively prevented the conveyance of the director's intentions. In both SDR and HDR materials, the white balance was dominated by red and green colors. As a result, there was a characteristic yellow tint on the image, causing whites to appear yellowed and creating issues with skin tones, which were noticeably too warm. The reduced gamma in the standard color gamut materials caused a significant drop in the already low contrast. This resulted in an emphasis on details in the blacks but also in blown-out images in brighter scenes. The EOTF curve, in this case, turned out to be much better and only lightened those scenes with relatively low luminance. This was clearly visible in the section where we measured the maximum brightness of the television in HDR materials. At that time, the frame from the movie "Billy Lynn" was unnaturally bright and lacking depth.

The Panasonic W70A was tested in movie mode, which theoretically should guarantee the most natural image reproduction. Unfortunately, as is often the case with budget televisions, the reality proved far from ideal.

In HD (SDR) content, the white balance was severely disrupted by an excess of red and a noticeable drop in blue tones. The result? The image had a distinctly warm, even yellowish tint, which is clearly visible in the comparison photo. In the case of 4K HDR materials, the situation reversed. Here, the image became excessively cold and bluish, causing scenes to lose their naturalness and depth. The differences are visible even to the naked eye, especially in the bright parts of the image. The Colour Checker palette test confirmed our observations. Most color samples did not hit their intended points, "running away" towards warmer shades in SDR and cooler ones in HDR. As for brightness characteristics, both gamma and the EOTF curve showed significant problems. The image tended to excessively brighten certain areas, disrupting the balance and leading to a loss of details in darker and brighter regions.

In summary – the factory color reproduction settings in the Panasonic W70A leave much to be desired. The image is far from neutral, and the errors in white balance and gamma mean that a solid calibration is needed to extract the full potential from this television.

Fortunately, Samsung provides a wide range of calibration tools in all its televisions, where we can find 2-point and 20-point grayscale adjustments as well as advanced CMS. Thanks to this, we were able to significantly improve the quality of SDR and HDR materials. The vast majority of errors have been corrected, and the image that the Samsung Q70D now generates is definitely closer to the reference. Higher deltaE errors in the high dynamic range materials are primarily due to the display's insufficient luminance.

The Panasonic W70A, despite its limitations, gave us a lot of room to maneuver during calibration. Thanks to well-developed tools, we were able to achieve significantly better white balance in both HD (SDR) and 4K HDR content. The issues with excess red in SDR and overly cool images in HDR have disappeared. The gamma brightness characteristic has also improved, maintaining stability and avoiding excessive brightness or loss of detail in darker areas.

So where is the problem? Unfortunately, there are barriers that even professional calibration cannot overcome. Poor coverage of a wide color gamut means that the TV cannot fully reproduce colors in HDR materials. There is a lack of saturation, and subtle color transitions still appear somewhat "flattened." Another limitation is brightness management, which results from the use of an IPS panel. In the comparative photo featuring the actress's face in colorful clothing, it is clearly visible how some shades are noticeably muted, and colors lose their depth and brightness.

The calibration extracted everything it could from the W70A. The image is now much more natural, and the errors in the factory settings have been effectively corrected. Unfortunately, hardware limitations in the form of poor color gamut coverage and an average panel prevent us from achieving spectacular results, especially in HDR content.

The function responsible for improving gradation is named "Noise Reduction" in the menu. As we have confirmed, it is worth activating as it has a positive effect on tonal transitions. More importantly, it does not negatively affect film grain or fine details, which sometimes the competition "offers" us.

Image scaling in Samsung Q70D should be rated as average. The manufacturer aims not to artificially sharpen the image but to leave it naturally softened.

We checked how the Panasonic W70A performs in improving content of lower quality than 4K, and it must be admitted that the television does quite well in this regard. The "Zeroing Counter" function is responsible for smoothing tonal transitions. The optimal setting turned out to be the Average option, which effectively smooths out color gradation issues while not ruining the film grain. This is the setting we recommend for most users, as it provides a balance between improving the fluidity of transitions and maintaining the naturalness of the image.

As for image scaling, the Panasonic W70A performed really well. The test pattern with the model was positively evaluated – details on her clothing were well reproduced, and the contours of her face retained sharpness. In the background, we noticed slight "jaggies" on thin branches, but these are details that only a very observant eye will catch. However, it is worth noting a certain flaw of this model – the television has a tendency to overscan, which means slight cropping of the image edges. This is not a very intense phenomenon and for most users it will be practically unnoticeable, but if we care about perfect framing, it is worth keeping this in mind.

The Samsung Q70D is the first model in the manufacturer's range to feature a 120Hz panel, resulting in more advanced motion smoothing capabilities compared to lower-category models. Within the menu, three functions are dedicated to improving motion fluidity: "Motion Blur Reduction," "Judder Reduction," and "Clear Motion (LED)." The third option will be discussed separately. The first function enhances sharpness during motion, while the second adjusts the degree of smoothing. The smoothness feature on the Samsung Q70D performs well, with each setting delivering a noticeable effect. This allows viewers to customise the level of fluidity, making it suitable for those who dislike the typical stuttering of films or enjoy watching sports. The accompanying picture illustrates a configuration with mild smoothing, avoiding the soap opera effect.

The panel employed in the Samsung Q70D offers a commendable response time for its class. While it won't deliver razor-sharp motion clarity, it is a strong choice for sports enthusiasts at this price point.

The Panasonic W70A is equipped with a 60 Hz panel, which immediately suggests that the television will perform best when watching movies, series, or everyday TV content. In more dynamic scenes, such as sports broadcasts or games, the panel's limitations become more noticeable. On the positive side, it is worth noting the presence of a motion smoother called "Effect," which offers three levels of adjustment - low, medium, and high.

Each of the settings allows you to adjust motion fluidity to your own preferences, minimizing motion blur and improving clarity in dynamic shots. In practice, the Medium setting seems to be the most versatile - it offers better fluidity without excessive "soap opera effect," which can look artificial in feature films. The High setting may work well for sports broadcasts, but in films, it can disrupt the natural character of movement.

The tested television, Samsung Q70D, has four HDMI 2.1 ports, all offering a bandwidth of 40 Gbps. Despite this, no negative effects were noticed during testing. More importantly, the TV supports all features associated with the HDMI 2.1 standard. This will certainly please gamers, as it ensures optimal gaming performance using a console or a PC. While HDR Dolby Vision is absent, the correct implementation of HGIG mode and the absence of any calibration checkerboard issues are noteworthy. Additionally, Samsung stands out by allowing gaming with the smoothness enhancer activated without significant performance degradation. This means that 30 fps titles are perceived similarly to those running at a native 60 frames per second.

Samsung was one of the first manufacturers to introduce the Game Bar, which has been consistently improved. It provides all necessary gameplay information and allows users to adjust "on the fly."

In summary, the Samsung Q70D performs excellently with both consoles and computers. All functions worked seamlessly, and there were no issues. The ability to activate the smoothness enhancer without a noticeable increase in input lag is a game-changing feature.

The Panasonic W70A is a television that will be more suitable for occasional gamers than for avid players. The 60 Hz panel does not allow for full utilization of the potential of new generation consoles, especially in dynamic titles. The lack of HDMI 2.1 somewhat limits its capabilities, but fortunately, we find features such as ALLM, which is automatic switching to game mode, and VRR, which helps minimize screen tearing. It's also worth noting the support for Dolby Vision in games and HGiG, which makes HDR more predictable and looks solid. It's just a pity that the Game Bar is missing. This feature is already standard in many televisions and provides quick access to the most important settings for gamers. The W70A holds up when it comes to gaming, but it has its limitations. It works well with calmer titles, while more demanding players may feel unsatisfied.