Samsung The Frame Pro vs TCL A400 PRO

Samsung The Frame Pro is one of the relatively bright televisions. In synthetic tests, we managed to achieve values around 900 nits, which is quite a respectable result for a lifestyle model. In full-screen scenes, such as the board from the film The Meg or the initial sequence in Life of Pi, brightness maintained a level of 700–800 nits. These values allow you to fully enjoy the HDR effects and convey their cinematic magic. However, the situation becomes complicated 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 manage these well. Sometimes, small elements are overly dimmed, which weakens the effect, or conversely – they are significantly brightened, but at the cost of losing the depth of black in that part of the image. This can be compared to light beams reminiscent of a laser beam spreading in dense fog – the effect is noticeable and bright, yet at the same time, it is quite unnatural and distracting. Fortunately, the colour aspect performs better. Thanks to the use of a quantum dot filter (QLED), colours are saturated, and the reproduction of the DCI-P3 palette exceeds 92%. Generally, films or series watched in HDR on The Frame Pro showcase a rich colour palette, even if contrast and the functioning of the dimming algorithms can sometimes distract us.

The TCL A400 Pro is a moderately bright TV. Its peak brightness reaches around 600 nits. That level already allows for a real HDR effect, and in many films it does produce a noticeably more attractive picture than in SDR. However, it is not a level that overwhelms with sheer brightness. The A400 Pro therefore isn’t one of those TVs that ‘attack’ the viewer with a powerful flash in every eye-catching scene. The biggest limitation is seen with small bright elements on a dark background. Because of fairly aggressive local dimming control, the TV can significantly reduce their brightness, in extreme cases even to around 100 nits. This means that small lights, sparks, stars or individual highlights can be much less visible than they should be. It’s worth adding, however, that this isn’t without reason. The A400 Pro does this to maintain as deep a black level as possible and to limit the halo effect around bright objects. So it’s an intentional compromise: the TV more often opts for deeper blacks rather than maximally bright, point-like highlights. On one hand this can be understood, especially given the limited number of dimming zones, but on the other you should be aware that the HDR effect won’t always be as strong as the peak brightness alone might suggest.

On the plus side, the colours are a strength. The PFS LED filter used here, marketed by the manufacturer as QLED, allows for suitably saturated colours. Coverage of the DCI-P3 gamut measured around 94%, and BT.2020 around 74%, which is a solid result for this class.

We achieved the best results, of course, in Filmmaker mode, which immediately showed that Samsung had put effort into the factory settings. In SDR content – the type most commonly viewed – The Frame Pro performed really well. The white balance and gamma were almost perfectly matched, giving the image a natural and cohesive appearance. Admittedly, there were some noticeable errors, particularly in skin tones and reds, which could be overly saturated, giving everything a slightly "warmed-up" character, but this didn’t significantly detract from the viewing experience in everyday use. For HDR content, the situation was similar regarding the white balance. This was at a good level; however, the biggest issue turned out to be brightness management. The EOTF curve was set in such a way that in many scenes, the image appeared blown out, with the brightest areas losing detail and turning into uniform patches of light. This severely undermined realism and caused the colours to appear overly sharpened. Fortunately, Samsung provides the option for manual adjustment of the curve in their televisions, so we opted for calibration, and its results can be seen below.

As standard, we performed colour measurements in the best‑tuned Filmmaker Mode, the mode that is designed to be closest to the creators' intentions. The A400 Pro of course also offers other picture modes, but in practice these come with considerably larger colour errors and interfere more with the character of the image. Therefore we will not deal with them in detail in this part of the test. So how does the out‑of‑the‑box colour reproduction fare? In short: really very good. Actually, looking at our measurement results, downright excellent. Both the white balance and the luminance response were set surprisingly precisely. The errors were so small that during measurements we genuinely rubbed our eyes in amazement. Such good factory settings do not happen often, even in TVs operating in Filmmaker Mode. All the more credit is due to TCL, because the A400 Pro right out of the box can deliver an image very close to how the source material should look. The results were so good that one could easily think someone had already given this unit extra attention and tried to calibrate it.

Our nitpicking really comes down to just one thing. In SDR content the image was slightly brighter than the dark‑room reference intends, because the factory gamma was set closer to 2.3 than to 2.4. This is not a large error and most viewers will probably not even notice it.

It should, however, be noted that we are talking about our specific test sample. With factory colours there can always be some variation between units, production batches or screen sizes. We do not assume, therefore, that every A400 Pro will look identical straight out of the box.

After calibration, the SDR mode looks absolutely perfect. We managed to eliminate the overly strong red saturation, which previously gave the image a somewhat excessively warm character. Colours have become more balanced, which resulted in a natural and pleasant reception of everyday content – from television to films and series from streaming or materials on YouTube. In HDR mode, the most work was required on the EOTF curve, which factory settings caused excessive brightening of the entire image. Calibration allowed us to largely "tame" this problem – the image stopped being overexposed, and details in bright areas became more visible. Of course, the limitations are set by the design of the television itself, as edge lighting reveals its constraints, and the smallest elements of light can still be overblown or blend into the background. However, this is a matter of technology, not just calibration. After the correction, The Frame Pro is significantly more enjoyable to watch, and it is certainly worth considering if you want to maximise the television's capabilities.

Despite its superb factory calibration, we couldn't resist checking how the TCL A400 Pro would respond to professional calibration. Since the starting point was so good, we were all the more curious whether there was anything more to be had from the TV. And here we must boast: we managed to reduce our unit's colour errors to absurdly low levels. Measurements below a value of 1 are not something you see every day, even in very good TVs. Such results are more commonly associated with professional reference monitors than with a lifestyle TV for the living room. In terms of white balance and colour reproduction the A400 Pro therefore simply performed exceptionally well after calibration. The only gripe we have after closer analysis relates to the luminance behaviour. The TV adjusts luminance depending on the content being displayed and quite often the picture is slightly darker than the reference calls for. This is most likely due to the way the Mini-LED backlight and local dimming algorithms operate in this model. However, this does not spoil the overall impression, because in terms of colour accuracy alone the calibrated A400 Pro showed a level that was really hard to expect.

Although the fluidity of tonal transitions in 4K HDR materials on The Frame Pro is not a problem at all, naturally, with a weaker signal - television, HD materials, or older Full HD films - imperfections may arise. Therefore, it is crucial how the television copes with these limitations thanks to its image processor. The noise reduction function works really effectively here. At the medium setting, it eliminates unwanted bands or artefacts, smoothing the image in a noticeable yet not excessive way. However, it's worth noting that Samsung tends to be aggressive in its approach - even at the lowest level of this function, it can "consume" film grain. So it's advisable to use it judiciously and adjust the settings to the material being viewed.

The upscaling itself is at a high level. The Frame Pro can effectively enhance older materials to a native 4K resolution while maintaining good sharpness and readability. Films and series in lower quality simply look better here. However, it should be mentioned that there is a minor drawback - typical for many Samsung televisions. With very old sources of poor quality, you may notice clipping of the image edges on the left side of the screen. It's not a problem that will ruin the viewing experience, but it's worth knowing that it might occur.

Digital image processing is, unfortunately, one of the weaker points of the TCL A400 Pro. That does not mean the TV performs badly, but it is hard to call it anything clearly above average. The upscaling itself is adequate: edges are smoothed fairly well, the picture does not look overly sharp or "pixelated", and lower-quality content can be watched without much discomfort. At the same time, the overall image is slightly soft and lacks the precision offered by the best image processors in more expensive TVs.

Much worse, however, is how it handles tonal transitions caused by strong signal compression. TCL has equipped the A400 Pro with a "Gradual Smoothing" feature that, in theory, should limit visible colour banding and artifacts in lower-quality material. In practice, though, 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 is best to leave this feature off. The A400 Pro copes decently with basic image scaling, but if you often watch heavily compressed content with noticeable posterisation, this model will not be among the best choices.

The smoothness of motion in The Frame Pro is not only due to the matrix, which operates with a refresh rate of up to 144 Hz, but also the image processor and the smoothing system. It is thanks to this that we can adjust the way films or sports broadcasts are displayed to our own preferences. There are sliders for reducing blurring and reducing judder – the first function improves the sharpness of fast movements, while the second helps to soften the effect of a "jumping" image during camera pans. So, everyone can choose between a cinematic motion character and a smoother, more "television" style.

The TCL A400 Pro is equipped with a 144 Hz panel, but in practice we are most interested in its behaviour at 120 Hz. That is the frequency most consoles are limited to today, as well as many sports broadcasts and high-frame-rate content. At that rate the TV performs quite well. The sharpness of moving objects is really good, especially after properly configuring the motion smoothing. The "Motion Clarity" function is responsible for improving smoothness. Its settings include two sliders that let you tailor how the motion smoothing operates to your preferences, separately for lower and higher frame-rate material. This makes it possible to achieve both a more cinematic look and a noticeably smoother picture. Those who do not want to fiddle with manual configuration can use presets such as low, medium, high, cinema or nature.

Samsung The Frame Pro does not pretend to be just a “living room” television; here, gamers will also find something for themselves. The manufacturer has ensured a full range 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 is the well-known Game Bar panel, which is a quick menu where key parameters can be checked on the fly—from refresh rates to enabled image processing modes. Are there any downsides? Indeed, The Frame Pro does not support Dolby Vision in game mode, but this is hard to consider a serious issue—most gamers use HDR10 anyway... which means 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 television independently interprets HDR tone mapping in games, and the user has no way to enable settings developed for consoles. This is a step backwards that may disappoint more knowledgeable gamers hoping for full compliance with HGiG guidelines. We can only hope that this issue will be resolved quickly.

An interesting feature of The Frame Pro is also the unusual arrangement of HDMI 2.1 ports. There are as many as five available—four are located in the One Connect box, and the fifth, in micro HDMI version, is directly on the television. This is quite an unusual solution, but rather practical. Samsung clearly suggests that this is the port to which you should connect your console or computer. Why? Because it minimises potential delays associated with communication through the wireless One Connect, and in the case of gaming, every millisecond matters. We have written separately about input lag, but it can already be revealed here that by connecting equipment directly to the television, we achieve the absolute maximum in response speed.

In terms of features for gamers the TCL A400 Pro performs brilliantly. The TV has practically everything you can expect from a gaming TV today: support for 4K at high refresh rates, VRR, ALLM, correct implementation of HDR formats in games including Dolby Vision, and HGiG. That means it works well with both next-generation consoles and a PC. Another plus is the presence of the Game Bar, a special panel with the most important settings for gamers. From it you can quickly check basic information about the signal, refresh rate or active features, and also adjust the appearance and behaviour of some settings to suit your preferences. This solution 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 connectors out of the four available, and one of them also serves as eARC. In practice this means that if someone wants to connect two next-generation consoles and a soundbar, they may run into some limitations. In that scenario you will have to either swap devices or use additional equipment, such as an AV receiver or a soundbar with HDMI inputs. Even so, it is hard not to rate the A400 Pro very highly as a TV for gamers. The gaming feature set here is truly powerful.