Samsung The Frame Pro vs TCL A400 PRO

Samsung The Frame Pro belongs to relatively bright televisions. In synthetic tests, we managed to achieve values around 900 nits, which, for a lifestyle model, is quite a decent result. In full-screen scenes, such as the frame from the movie The Meg or the opening sequence in Life of Pi, brightness remained at levels of 700–800 nits. These are values that allow you to fully enjoy HDR effects and capture their cinematic magic. However, the situation complicates when smaller, point light sources appear on the screen. The edge lighting used here, equipped with the ability to locally dim entire strips, does not handle them very well. It sometimes happens that small elements are excessively dimmed, which weakens the effect, or on the contrary – they are significantly brightened, but at the cost of losing black depth in that part of the image. This can be compared to light glows resembling the spread of a laser beam in dense fog – the effect is visible and bright, but at the same time, it is not very natural and distracts our attention. Fortunately, the color aspect performs better. Thanks to the use of a quantum dot filter (QLED), the colors are saturated, and the reproduction of the DCI-P3 palette exceeds 92%. In general, movies or series watched in HDR on The Frame Pro present a rich color palette, even if the contrast and the operation of the backlight algorithms can sometimes distract our attention.

The TCL A400 Pro is a moderately bright TV. Its peak brightness reaches about 600 nits. That level already allows for a real HDR effect and in many movies it does produce a noticeably more attractive picture than SDR. However, it is not a level that overwhelms by brightness alone. The A400 Pro is not one of those TVs that "attack" the viewer with a powerful flash in every dramatic scene. The biggest limitation is visible with small bright elements on a dark background. Due to rather aggressive control of the dimming zones, the TV can significantly reduce their brightness — in extreme cases down to around 100 nits. That means small lights, sparks, stars, or single highlights can be much less visible than they should be. That said, this is not done without reason. The A400 Pro does this to keep blacks as deep as possible and to limit haloing around bright objects. It's a deliberate compromise: the TV more often chooses deeper blacks over maximally bright, point-like highlights. On one hand this is understandable, especially with a limited number of dimming zones, but on the other hand you should be aware that the HDR effect will not always be as strong as the peak brightness alone would suggest.

On the plus side, the colors are worth noting. The PFS LED filter used here, marketed by the manufacturer as QLED, produces suitably saturated colors. Our measurements showed about 94% coverage of the DCI-P3 gamut and about 74% of BT.2020, which is a solid result for this class.

The best results were, of course, achieved in Filmmaker mode, which immediately showed that Samsung paid attention to the factory settings. In SDR content – the type of content most often viewed – The Frame Pro performed really well. White balance and gamma were almost perfectly matched, making the image look natural and consistent. Yes, there were some noticeable errors, especially in skin tones and reds, which could be overly saturated, giving everything a slightly “warmed up” character, but in everyday use, this did not significantly affect the viewing experience. In the case of HDR content, the situation was similar regarding white balance. It was at a good level; however, the biggest problem turned out to be brightness management. The EOTF curve was set in such a way that in many scenes the image appeared to be overexposed, and the brightest areas lost details and turned into solid patches of light. This severely undermined realism and made the colors appear strongly over-sharpened. Fortunately, Samsung provides the option for manual adjustment of the curve in its televisions, so we opted for calibration, and its results can be seen below.

As standard, we carried out color measurements in the best-calibrated mode, Filmmaker Mode, the one that is supposed to be closest to the creators’ intent. The A400 Pro, of course, also offers other picture modes, but in practice they suffer from much larger color errors and alter the image character more strongly. We won’t go into those modes in detail in this part of the test. So how does the factory color reproduction perform? In short: really very well. In fact, looking at our measurement results, it’s excellent. Both the white balance and the luminance response were set surprisingly precisely. The errors were so small that during testing we genuinely rubbed our eyes in disbelief. Such good out-of-the-box settings don’t happen often, even in TVs operating in Filmmaker Mode. All the more reason to praise TCL, because the A400 Pro right out of the box can produce an image very close to how the source material should look. The results were so good that you could easily think someone had already paid extra attention to that unit and tried to calibrate it.

Our nitpicking really comes down to just one thing. In SDR content the image was slightly brighter than the reference for a dark room, because the factory gamma was set closer to 2.3 than to 2.4. It’s not a big error and most viewers probably won’t even notice it.

However, it should be noted that we’re talking about our specific review sample. With factory colors there can always be some variation between units, production batches, or screen sizes. So we don’t assume that every A400 Pro will look identical straight out of the box.

After calibration, the SDR mode looks simply perfect. We managed to eliminate the overly strong red saturation that previously gave the picture a somewhat excessively warm character. The colors became more balanced, which translated to a natural and pleasant reception of daily content – from television to movies and series from streaming or materials on YouTube. In HDR mode, the EOTF curve required the most work, as it originally caused excessive burning of the entire image. Calibration largely helped to "tame" this problem – the image stopped being overexposed, and details in bright areas became more visible. Of course, the limits are set by the television's own design, as edge lighting reveals its limitations, and even the smallest elements of light can still be oversaturated or blend into the background. However, this is a matter of technology, not calibration itself. After the correction, The Frame Pro is much more enjoyable to watch, and it's definitely worth opting for if you want to make the most of your television's capabilities.

Despite its excellent factory tuning, we couldn't resist checking how the TCL A400 Pro would respond to a professional calibration. Since the starting point was so good, we were even more curious whether we could squeeze even more out of this TV. And here we have to boast: we managed to bring our unit to absurdly low color errors. Results below 1 are something you don't see every day, even on very good TVs. Such results are more often associated with professional reference monitors than with a lifestyle TV for the living room. In terms of white balance and color reproduction, the A400 Pro after calibration simply performed outstandingly. The only thing we can pick at after a deeper analysis concerns the brightness behavior. The TV can manipulate luminance levels depending on the content being displayed, and quite often the image is a bit darker than it should be according to the standard. This most likely stems from the way the Mini-LED backlight and local dimming algorithms work in this model. However, that doesn't spoil the overall impression, because in terms of color precision alone the A400 Pro after calibration reached a level we really didn't expect.

While the smoothness of tonal transitions in 4K HDR content on The Frame Pro is not a problem at all, naturally with weaker signal quality – from television, HD content, or older Full HD films – imperfections may occur. Therefore, it is crucial how the television handles these limitations thanks to its image processor. The noise reduction feature works really effectively here. At the medium setting, it eliminates unwanted bands or artifacts, smoothing the image in a noticeable but not overly exaggerated way. However, it should be noted that Samsung tends to operate aggressively – even at the lowest setting of this feature, it can "eat" film grain. It is therefore advisable to use it with caution and adjust the settings to the material being viewed.

The upscaling itself is at a high level. The Frame Pro can effectively upscale older materials to native 4K resolution while maintaining good sharpness and readability. Movies and series in lower quality simply look better here. However, it is worth mentioning a minor drawback – typical for many Samsung televisions. With very old sources of poor quality, you may notice cropping of the image edges on the left side of the screen. This is not a problem that will ruin the viewing experience, but it is good to know that it may occur.

Digital video processing is unfortunately one of the weaker points of the TCL A400 Pro. That doesn't mean the TV performs badly, but it's hard to call it anything clearly above standard. The upscaling itself is adequate: edges are smoothed fairly well, the image doesn't look overly sharp or pixelated, and lower-quality content can be watched without major discomfort. At the same time the overall look is slightly soft and it lacks the precision that the best image processors in more expensive TVs can deliver.

Much worse, however, is its handling of tonal transitions caused by heavy compression. TCL equipped the A400 Pro with a "Gradual Smoothing" feature that in theory should reduce visible color banding and artifacts in lower-quality content. In practice its effectiveness is very limited. It does not improve tonal transitions in any noticeable way, and at higher settings it can also smooth out image details, giving the picture an artificial, slightly blurred character. For that reason we think it's best to leave this feature off. The A400 Pro handles basic image scaling decently, but if you often watch heavily compressed content with visible posterization, this model won't be one of the best choices.

The smoothness of motion in The Frame Pro is ensured not only by the panel, which operates with a refresh rate of up to 144 Hz, but also by the image processor and the smoothing system. It is thanks to this that we can adjust the way we display movies or sports broadcasts to our own preferences. Available are sliders for motion blur reduction and judder reduction – the first function improves the sharpness of fast movements, while the second allows for softening the "jumping" image effect during camera pans. Therefore, everyone can choose between a cinematic character of motion and a smoother, more "television-like" style.

The TCL A400 Pro is equipped with a 144 Hz panel, but in practice we're most interested in how it performs at 120 Hz. That's the refresh rate used by most consoles today, as well as many sports broadcasts and high-frame-rate content. In this range the TV performs quite well. Motion clarity is really good, especially after properly configuring the motion smoothing. The "Motion Clarity" feature improves smoothness. Its settings include two sliders that let you tailor the motion smoothing to your preferences — separately for lower- and higher-frame-rate material. That way you can achieve either a more cinematic look or a noticeably smoother picture. If you don't want to tweak settings manually, you can use presets such as low, medium, high, cinema, or nature.

Samsung The Frame Pro doesn’t pretend to be just a “living room” television; here, gamers will also find something for themselves. The manufacturer has ensured a full suite of gaming features: we have support for variable refresh rate (VRR), automatic low latency mode (ALLM), refresh rates up to 144 Hz, and compatibility with both G-Sync and FreeSync Premium Pro. Additionally, there’s the well-known Game Bar panel, which is a quick menu where you can check key parameters on the fly – from refresh rates to active image processing modes. Are there any downsides? Yes, The Frame Pro doesn’t support Dolby Vision in gaming mode, but it's hard to consider this a serious issue – most gamers use HDR10 anyway... so, the HGIG mode. Exactly. The biggest surprise turned out to be the latest software update. Samsung… completely removed this option from The Frame PRO. In practice, this means that the TV independently interprets HDR tone mapping in games, and the user has no ability to enable settings designed for consoles. This is a step backward that may disappoint more informed gamers expecting full compliance with HGiG guidelines. We just hope that this mistake will be quickly corrected.

Interestingly, The Frame Pro also features an atypical arrangement of HDMI 2.1 ports. We have as many as five available – four are located in the One Connect module, and the fifth, in micro HDMI version, is directly on the TV. This solution is quite unconventional, but very practical. Samsung clearly suggests that this is the port to connect your console or computer. Why? Because it minimizes potential delays associated with communication through the wireless One Connect, and in gaming, every millisecond matters. We wrote separately about input lag, but it can be revealed here that by connecting equipment directly to the TV, we achieve the absolute maximum response speed.

When it comes to features for gamers, the TCL A400 Pro performs excellently. The TV has practically everything you can expect from a gaming TV today: 4K support at high refresh rates, VRR, ALLM, correct implementation of HDR formats in games, including Dolby Vision, and HGiG. Because of that it works well with both next-gen consoles and PCs. Another plus is the inclusion of a Game Bar, a special panel with the most important settings for gamers. From it you can quickly check basic signal information, refresh rate, and active features, and also adjust the look and behavior of some settings to your own preferences. This is a solution that may not change picture quality by itself, but it greatly improves the convenience of using the TV while gaming.

The only thing to complain about is the number of full HDMI 2.1 ports. The A400 Pro has only two such ports out of four, and one of them also functions as eARC. In practice this means that if someone wants to connect two next-gen consoles and a soundbar, they may hit some limitations. In that scenario you'll have to either swap devices or use extra equipment, for example an AV receiver or a soundbar with HDMI inputs. Despite this, it's hard not to rate the A400 Pro very highly as a gaming TV. The gaming feature set here is really powerful.