Panasonic Z85A vs Samsung QN85F

The Panasonic Z85A is an OLED television, so one can immediately expect great effects in films. And indeed – our tests have shown that the WOLED panel can achieve around 800 nits of peak brightness in optimal conditions. This is a solid result that performs well in most demanding HDR scenes, allowing viewers to enjoy a dynamic and detail-rich image. However, like any OLED, the Z85A has its limits. In very bright scenes covering the entire screen – such as the final sequence from the film The Meg – the television reduces brightness to around 400 nits. This is standard behaviour for this technology, so if someone plans to watch films in a brightly sunlit living room, it is worth keeping this in mind. The coverage of the DCI-P3 colour gamut at 98% also deserves high praise. Thanks to this, the television reproduces a wide range of colours that stand out with vibrancy and depth, and details in HDR scenes are sharp and precise. In short – the Panasonic Z85A delivers a solid HDR effect that will satisfy any film enthusiast.

Although more than twice the number of dimming zones compared to its predecessor did not translate into a spectacular jump in black levels and contrast, we definitely felt it in the HDR effect itself. The QN85F is up to 50% brighter than last year's model, making a huge impression in dynamic scenes. The peak brightness can reach almost 1700–1800 nits, which is truly impressive for Mini-LED in this class. The best part is that almost regardless of the scene being watched, the HDR effect remains strong and vibrant. In four out of five test scenes, brightness was maintained around 1000 nits, a level that in most cases allows the viewer to experience the true magic of this format. Of course, in scene number 4 from the film Sicario 2, the limitations of Mini-LED technology become apparent – the brightness of the helicopter’s small light drops to around 500 nits. This result is not stellar, but it is still much more acceptable than last year's model. Samsung therefore deserves applause, as the improvement in brightness in the QN85F is drastic compared to its predecessor. However, it is a shame about a certain trend visible in this year's televisions – the manufacturer has worsened the colour gamut coverage. Although the QN85F has a QLED panel, its score of around 90% DCI-P3 is average, and in the most demanding films, it can lead to less vibrant colours than its predecessor. Despite this shortcoming, the overall HDR effect stands at an excellent level and truly makes a big impression in this class of devices.

The Panasonic Z85A offers many picture modes, but the Filmmaker mode definitely stands out from the rest. It is rare for a television to be so well tuned straight out of the box, and the unit we had the opportunity to test really surprised us positively.

However, there were a few minor shortcomings. In the SDR signal, we noticed a slight deficit of red and blue, which resulted in the image having a cooler hue than it should have. This is especially noticeable in the comparative photo. Conversely, in 4K HDR content, the situation was the opposite – an excess of red made the image appear warmer than the creators intended. In terms of brightness characteristics (gamma) and the maintenance of the appropriate EOTF curve, it's hard to find fault. There are slight deviations, but they are so minimal that the average viewer is unlikely to notice them.

It is also worth emphasising that our observations pertain to a specific unit of the television. Two identical models may differ from each other due to natural production variances. Nevertheless, the unit we had in our hands looks really solid and deserves praise. Now it's time for our calibration – we'll see if we can extract even more from this screen!

Samsung QN85F offers several preset picture modes, but by default, when the television is turned on, it starts in "Eco" mode. And we could actually end the discussion here, because for such a model, using this setting makes no sense – the picture is washed out, unpleasant, and far from what we expect from a television of this class. We therefore carried out our tests in the best of the available modes, which is the Filmmaker mode. Its purpose is to faithfully reproduce what the directors saw during the filming of the movies, and indeed this is the setting that performs best among all factory options. However, this does not mean that it is without flaws.

Both in SDR and HDR, the QN85F quite strongly emphasised warm colours. This resulted from deficiencies in white balance, where there was a distinct lack of blue. Additionally, the picture was sometimes overexposed – as indicated by both the gamma brightness characteristic and the EOTF curve, which showed that the television tends to blow out scenes. In SDR, the colour reproduction errors (Delta E levels of 4-5) were still acceptable, but in HDR the discrepancies became quite large and clearly deviated from what the creators intended to show us. Fortunately, Samsung provides a wide range of calibration tools in its televisions, so – as always – we proceeded with professional calibration to see how much could be improved.

The Panasonic Z85A offers truly wide possibilities when it comes to image settings, so we enthusiastically set about calibration. Although we mainly focused on correcting the white balance, the final result exceeded our expectations. Both HD and 4K HDR content now display nearly perfect colour reproduction, with minimal errors that are hard to catch with the naked eye. Well-calibrated televisions are a rarity, and we must admit – it is truly gratifying. Although the gamma and EOTF curve did not require drastic adjustments, it was possible to further stabilise their characteristics across the entire brightness range. After calibration, the Panasonic Z85A is a true gem for home cinema enthusiasts. The image is precise, the colours are natural, and every scene looks exactly as the director intended.

After calibrating the film mode, we managed to tame the colours in both modes to near perfection – most of them did not exceed an error value of 3, which is the threshold of perception by the human eye. The image became more natural, fuller, and at the same time free from bloom, which was noticeable right after taking the television out of the box. This shows the great potential of the QN85F and how well it responds to precise settings. However, this does not change the fact that certain technological barriers cannot be overcome. Despite the enormous benefits of calibration, there are still limitations of the panel itself. Although the number of dimming zones has doubled compared to its predecessor, the algorithms controlling the backlighting can manipulate brightness in their own way. Sometimes this leads to slight colour inaccuracies or gently visible halo effects around bright objects. Nevertheless, the experience after calibration is truly pleasant and demonstrates how good a screen the QN85F can be if we just take a moment for proper settings.

Now that we know how the Panasonic Z85A performs with tonal transitions in 4K content, it’s time to take a look at its "Gradation Smoothing" feature. It works, but unfortunately not entirely effectively. Regardless of the chosen value – whether it’s low, medium, or high – we were unable to achieve perfectly smooth tonal transitions in our test sequence. We recommend setting this feature to an intermediate level. Although it may slightly blur fine details, at least the issue of film grain loss does not occur, which for many viewers can be crucial when watching classic productions.

As for image scaling, the television performs quite well. It’s noticeable that the image is slightly sharpened, and slim lines may at times appear a bit jagged. However, this is standard in most TVs, and fortunately, it can be adjusted using the sharpness slider. This gives us complete control – we can achieve a more plastic, blurred image or a clearer one, although it may be more “harsh” and artificially sharp. It all depends on user preference and the type of content we are watching. Overall, the scaling is at a solid level and should satisfy most users who are using lower resolution materials.

Although the native tonal transitions on the QN85F with 4K material perform excellently, we do not always deal with content in the highest resolution. At that point, it becomes crucial how the television handles upscaling and digital image processing. This process is managed by Samsung's proprietary processor – AI NQ4 Gen2. In practice, it operates very efficiently. If visible colour banding or other undesirable phenomena occur on the screen, for instance, in materials from YouTube, they can easily be smoothed out using the "noise reduction" feature. Set to a medium level, it improves tonal transitions without excessively blurring desired details. However, it is important to remember that – as with most Samsung televisions – this function heavily interferes with the film grain. Therefore, during cinematic screenings, it is wise to use it cautiously to avoid losing the natural character of the image.

The upscaling itself looks very good. Test materials in lower resolutions were displayed sharply and clearly, with a great deal of detail. The only downside remains the issue of overscan, which is the trimming of the edges of the screen. In most situations, this is not noticeable, but with very old materials below HD quality, there may be cases where a fragment of the image from the left side gets slightly cut off.

The Panasonic Z85A features a 120 Hz panel, which will certainly please both gamers and sports fans. Admittedly, it is not 144 Hz like some gaming TVs, but in practice, the difference is really hard to notice. In games, the image is stable and clear, and during fast action, there is no sign of any blurring. The same applies to sports – a fast-running footballer or a dynamic car manoeuvre looks smooth and natural. The TV also has the “Intelligent Frame Creation” function, which is a motion smoother. There are two sliders here – one is for reducing blur, and the other is for motion smoothness. With these, you can adjust the image to your own preferences – whether it be more of a cinematic effect with gentle transitions between frames, or a maximally smooth image ideal for watching sports.

Motion smoothing and fluidity in the QN85F is a topic worth discussing in more detail, as the television is equipped not with a standard 120 Hz panel, but with a 144 Hz one. The extra hertz will mainly be appreciated by PC gamers, but the mere presence of such an option can be seen as a nice addition and a sign of the times – it’s hard to complain about the trend towards faster panels, as in practice, each of us would prefer the image to be as smooth as possible. However, the most important thing is how the television handles typical 120 Hz refresh rates – in the case of consoles, sports, or films recorded at 24 or 30 frames per second. Here, the QN85F performs really well. In films, one can easily adjust the character of the image thanks to the "image clarity" function, where we find two adjustable sliders. Key for screenings is the one responsible for reducing judder. Lower values give the image a more cinematic character with preserved "frame rate," while higher values lead to strong smoothing reminiscent of television theatre.

Panasonic is mainly associated with home cinema televisions, but the Z85A demonstrates that it can also step into the gaming world with a really strong impact. This hardware can easily be called a gaming beast – it has everything needed for comfortable gameplay.

Although there are only two HDMI 2.1 ports, both operate at full bandwidth, so we can easily connect both a next-gen console and a gaming PC. All key features are supported: ALLM automatically switches the television to game mode, VRR ensures smooth images without stuttering or tearing, and with correctly implemented HGIG and Dolby Vision, HDR games look really good – colours are vivid, details are sharp, and dark scenes are clear. We also find a Game Bar in the form of a clear, circular menu. It may not look as impressive as the competition's, but it is intuitive and contains all the important settings we would like to have at hand during gameplay.

In summary – the Panasonic Z85A is equipment that truly surprises with its gaming capabilities. It is a television on which both console gamers and PC players will feel at home. It is smooth, dynamic, and simply good.

The Samsung QN85F makes a really great impression from the perspective of gaming features. We have four HDMI 2.1 ports here, so we can easily connect several devices simultaneously. There is also variable refresh rate (VRR) to prevent screen tearing, as well as automatic low latency mode (ALLM), which allows the TV to switch to the appropriate settings when we start the console. Additionally, it supports refresh rates of up to 144 Hz – something that PC gamers will particularly appreciate, but the mere fact that such an option is available shows that Samsung is committed to full support for gamers. The Game Bar panel also deserves praise. It provides a quick overview of key parameters – from frame count to refresh mode, right down to shortcuts for picture settings. Instead of digging through the entire menu, everything is at our fingertips, which turns out to be really convenient in practice. However, the most interesting addition is the Game Motion Plus feature. This is nothing more than a motion smoother brought into the gaming world. When turned on, the image becomes smoother, sometimes appearing as if we’re getting several more frames, and importantly – the response time doesn’t increase sufficiently to hinder gameplay. This is a solution that truly distinguishes Samsung's 120Hz televisions from the competition.

The only serious downside remains the lack of proper HGiG support. This is the standard responsible for proper tone mapping in HDR games, ensuring that brightness and contrast are displayed according to the creators' intentions. Without HGiG, we have to adjust the brightness manually, which doesn’t always result in the ideal outcome. The feature was available in previous models, but it disappeared in the QN85F after one of the updates. We hope that Samsung will quickly address this issue, and we will be monitoring whether it has been resolved.