Samsung The Frame LS03D vs TCL A400 PRO

The Frame really handles brightness well. With results at the level of 700 nits, bright elements on the screen look impressive and detailed, whether they illuminate the entire screen or appear as small bright spots against a dark background. In more demanding scenes, like the fourth sequence from the movie Sicario 2, the blacks perform averagely, but we already discussed that in the section regarding contrast. However, when it comes to brightness – here the TV definitely performs well. An additional advantage is the quantum dot coating, i.e., QLED technology. Thanks to it, the color palette coverage has been improved, although The Frame does not stand out in this regard compared to the competition.

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.

Samsung offers several picture modes in its TVs, but without a doubt, the Filmmaker Mode is the one that should provide the most natural representation of content. Unfortunately, as is often the case with mass production, the differences between units can be significant, and our tested model did not escape a few problems.

In the case of SDR content, the white balance heavily leaned towards red, with a slight boost in blue. This effect was particularly visible in comparison photos – in the example of a photograph with a boy, whose face was almost unnaturally flushed. The gamma, or brightness characteristic, also did not perform perfectly – the image was slightly brightened, which took away its depth.

In 4K HDR content, the white balance was again dominated by red, this time combined with green. Meanwhile, blue clearly lost intensity, which could be easily noticed on the Color Checker palette, where the colors began to "run away" in the wrong direction. The EOTF curve, responsible for brightness in HDR content, showed that the TV tends to excessively brighten the image, especially in the darkest elements of scenes.

Overall, although it did not look tragic, it definitely needed correction. Fortunately, Samsung offers extensive calibration options, which provide an opportunity for significant image improvement. Therefore, we proceeded with professional calibration to extract the full potential of this TV.

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 professional calibration, the Filmmaker Mode shows its full potential. The white balance in HD content is exemplary – an error level of 0.5 indicates almost perfect color reproduction precision. The image now looks natural, and the colors are exactly as they should be. In 4K HDR content, the effect is not as perfect, but it still maintains a really high level. The colors are vibrant, well-saturated, and the overall image quality is impressive.

So where does the problem arise, if we praise the color reproduction so much? Unfortunately, the overall experience is disrupted by the brightness characteristic. The gamma in HD content looks decent, but in 4K HDR it's not as good. The EOTF curve shows that the TV excessively brightens certain parts of the image, which is a result of design limitations. The lack of local dimming means that the TV cannot precisely control the differences between the brightest and darkest areas of the screen. This is a barrier that simply cannot be overcome in this model.

Nevertheless, after calibration, The Frame offers excellent color reproduction, especially in HD content, and the overall appearance is much better than before the settings correction.

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.

It was time to check how The Frame handles older, lower-quality materials. We already know that the smoothness of tonal transitions is very high here, so we were curious to see how the TV would manage their smoothing.

The noise reduction feature in the "Standard" setting performs well – tonal transitions are noticeably smoothed out, and the image does not lose too much detail. However, it's worth noting that this effect also smooths out film grain, so its use will be a matter of individual preference.

When it comes to image scaling, the TV also performed really well. The tested frame was solid – the model was rendered correctly, with clear details. The branches in the background, although slightly jagged in places, generally look natural and do not stand out as a flaw.

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.

First of all, it is worth noting that the model we tested in 55 inches, just like the 65, 75, and 85-inch versions, is equipped with a 120 Hz panel. Unfortunately, the 43 and 50-inch variants of this series offer only 60 Hz panels, which is worth considering when making a purchase. As for improving motion fluidity, the TV offers a feature called "Picture Clarity." This is a classic motion smoother that gives users the ability to adjust it using two sliders:

Motion Blurring Reduction – this is responsible for sharpening the image during dynamic scenes. The higher the value, the less blur during rapid camera movement or moving objects. However, overly aggressive settings can make the image look unnatural and start to resemble a “soap opera”.

Judder Reduction – this slider affects the smoothness of frame playback, particularly in materials with a lower frame rate, such as films (24 fps). Higher settings can smooth out motion but can also lead to an excessive "plasticky" effect on the image.

Both sliders operate on a scale from 0 to 10, allowing for precise adjustment of the effect to one’s own preferences. It is worth experimenting with the settings to find the perfect balance between fluidity and the natural appearance of the image. We recommend setting them as shown in the picture.

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.

The Frame in version 2024 is equipped with four HDMI ports, but only one of them supports the 2.1 standard with a bandwidth of 40 Gb/s. This is an important piece of information if we plan to connect more than one device that requires a 4K@120 Hz signal – for example, two consoles or a console and a gaming PC. In terms of gaming features, The Frame truly has a lot to offer. We find ALLM (Auto Low Latency Mode), VRR (Variable Refresh Rate), and HGiG. It is worth emphasizing that HGiG has been very well implemented here, which is particularly important since the TV does not support Dolby Vision in games (which is only available on Xbox consoles). In this case, HGiG proves to be a better standard for gaming. Samsung has not forgotten about features that enhance the gaming experience. Game Bar is an advanced panel for gamers that allows for quick adjustment of screen settings without the need to sift through the TV menu. We can even change the aspect ratio from 16:9 to cinematic 21:9, which for some gamers can be a significant advantage. However, Samsung's biggest ace up its sleeve is the Game Motion Plus feature. This is a special smoother dedicated to games, which adds extra frames of animation without significantly impacting input lag. The effect is really noticeable – the image appears much smoother, which fans of dynamic titles will particularly appreciate. In summary – Samsung The Frame is a television that offers a solid set of features for gamers. Although the limitation to one HDMI 2.1 port may be a downside, the rest of the solutions make gaming on this TV a truly enjoyable experience.

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.