Compare LG 55 B4 vs TCL A300W NXTVision

The LG OLED B4 is an exceptionally versatile television within the semi-premium category. Given its impressive features and competitive pricing—set to drop further as history suggests—it offers outstanding value. The hypnotic combination of perfect black levels and high contrast will captivate anyone familiar with OLED technology, making a return to LCD screens almost unthinkable. While its peak brightness in HDR content might seem modest on paper, the visual experience is enhanced by the panel’s inherent strengths, making the brightness appear far more impactful. It’s also worth highlighting the stability and uniformity of brightness across most scenes. The slight drawback is the reduced brightness in full-frame white scenes, though these are relatively rare and thus not a major concern.

Factory colour reproduction is commendable, offering a good baseline that benefits significantly from calibration, fully realising the director’s vision. The LG B4 is particularly well-suited for gamers and sports enthusiasts alike. Gamers will appreciate the comprehensive HDMI 2.1 support and associated features, while sports fans will enjoy the advanced motion smoothing with its extensive adjustment options. The remote control, equipped with a gyroscope, allows for intuitive navigation akin to using a mouse, making the experience even more seamless.

The WebOS system is another highlight, offering a smooth, responsive interface with a vast array of applications, meeting the needs of most users. At the core of the LG B4 is its advanced Alpha processor, responsible for enhancing image smoothness and conducting detailed signal analysis. The processor’s ability to optimise the darkest and brightest areas of the image significantly improves the viewing and gaming experience. Furthermore, it effectively reduces noise and elevates the overall content quality, especially when viewing 4K material, placing the LG B4 ahead of many competitors in its price bracket.

The growing popularity of OLED technology is well-reflected in the LG B4, which excels in handling dynamic action scenes, offering seamless transitions without blurring. This makes it particularly appealing to discerning users prioritising high image quality and cutting-edge technology. All essential applications are present, ensuring a comprehensive user experience.

In summary, who is the LG OLED B4 for? It’s the perfect choice for those seeking top-tier image quality within a set budget, yet it offers more than just value for money. The LG B4 stands out distinctly in its price range, offering superior image quality that many competitors cannot match.

At first glance, it's clear that the TCL A300 NXTVision wants to be more than just an ordinary television. It offers an image display mode that – unlike its competitors from Korea, Samsung The Frame – is completely free of charge. Additionally, like its rivals, freebies are included. In the package, in addition to the television, we find extra frames imitating light wood as well as a flat wall mount, allowing the television to truly resemble a gallery piece. In terms of everyday use, the Google TV system makes the biggest impression – it's extensive, fast, and offers access to a vast number of applications. And if we feel like stepping out of the digital museum and jumping straight into the gaming world, the A300 can surprise us. Two HDMI 2.1 ports, 144 Hz, VRR, ALLM, and very low input lag mean that even demanding gamers can feel at home here. Well... maybe except for those who are sensitive to ghosting – because that's still one of the model's major issues. There are also downsides. Although the picture mode is free – and that's worth appreciating – the quality of the available graphics clearly falls short of what Samsung offers in its paid ART Store. The images displayed resemble photos rather than realistic reproductions of artworks. Unfortunately, the A300 – like the competing Hisense S7NQ – performs poorly in this regard and additionally has some software issues. The brightness of the television itself also leaves much to be desired – it is the darkest television of the entire “frame trio,” which translates to average experiences during the day and limited HDR effects. Nevertheless, the TCL A300 NXTVision is a quite reasonable alternative to Samsung The Frame or S7NQ – especially if we are looking for a more affordable solution without additional fees for access to the "gallery" mode and with an operating system that doesn't limit us in terms of the number of applications. However, it should be noted that this is a proposition with a lot of compromises. If we want to save a bit and aren’t expecting top-end picture quality, then the A300 could be a picture-perfect choice. Otherwise, it’s worth looking at its competition.

The LG B4 employs OLED panels produced by LG Displays, offering perfect contrast and true black levels. This results in an image so vivid and dynamic that it can appear almost three-dimensional. The "B" series has consistently been an ideal choice for those seeking excellent image quality without the premium price tag associated with higher-tier models. Thanks to competitive pricing, the B series often rivals Mini LED televisions, frequently emerging victorious. Unlike LCD TVs with local dimming, the LG B4 avoids common issues like blooming, halo effects, or dimming of fine bright details.

This superiority is particularly evident in challenging test scenes, such as those from Oblivion and Sicario 2. The LG B4 handles these with impressive finesse, delivering a high level of visual depth. In Oblivion, the bright lights are distinctly separated, maintaining clarity and precision without blending into each other. Similarly, in The Sicario 2, scenes featuring heli highlight the B4's ability to render intricate details and preserve the film’s unique colour grading, even in darker, more demanding moments. This exceptional performance in both contrast and detail demonstrates the LG B4’s capability to bring cinematic experiences to life.

TCL A300, also known as NXTVision, uses a VA panel, so right from the start, decent contrast could be expected. In our test patterns, the television did indeed show typical results for this type of panel – in the best case, the contrast reached about 5000:1, which is not a bad result for this segment.

However, it should be noted that the model is not equipped with any local dimming technology, which unfortunately shows in practice. Black, although at times quite deep, often shifts to blue or gray – especially in darker scenes. In short: for a television without local dimming, it's not bad, but there’s no point in comparing it to models that already have that feature on board.

The HDR brightness performance of the LG B4 is impressive, even though it doesn't surpass 1000 nits. Its luminance stability is consistently strong across various scenarios, delivering a reliable viewing experience. The only instance where the TV shows slight weakness is in scenes with large areas of bright white, which has long been a challenge for OLED technology. However, perfect contrast, deep blacks, and excellent brightness ensure a fully immersive HDR experience. Furthermore, the TV’s remarkable 99% coverage of the DCI-P3 colour gamut enhances its colour vibrancy, making images appear rich and visually striking. This level of colour accuracy and brightness balance firmly places the LG B4 among the top choices for HDR content.

When it comes to brightness, the TCL A300W is definitely the darkest TV among all frame-style models, such as Samsung The Frame or Hisense CanvasTV – and unfortunately, this is immediately noticeable. In our measurements, the peak luminance reached only about 400 nits, and on test film screens, this value dropped to 350 nits. This is definitely too little to feel the true "magic" of bright HDR effects. As a consolation – the TV is equipped with a PFS LED coating (which is something like QLED), which provides very good coverage of a wide color palette, both DCI-P3 and BT.2020. Additionally, there is full support for all popular HDR formats – HDR10, HDR10+, HLG, and Dolby Vision – which somewhat compensates for the shortcomings in brightness and helps improve the overall perception of materials in this quality.

The best factory preset offered by LG B4 is the "Filmmaker" mode, which we used throughout our testing. Straight out of the box, the TV delivered fairly accurate colour reproduction. However, the most significant issue in both SDR and HDR content was the white balance. In SDR, there was a noticeable red dominance, giving the image a distinct yellow tint, particularly evident in skin tones and whites. In HDR, this red hue persisted, but the lack of blue also introduced a greenish tint in certain scenes. Additionally, we observed some inconsistencies in grayscale and colour accuracy. Despite these shortcomings, the overall picture quality was still solid for most viewing scenarios.

TCL A300 offers several picture modes, but without a doubt, the movie mode performs the best. Unfortunately, although it is the best choice among the available options, it is not free from errors. Both in HD and HDR content, the image has a noticeably too warm tint – leaning slightly towards pink, which is particularly noticeable in snowy scenes. Instead of pure white, we get a pinkish hue that spoils the natural perception of colors.

The brightness management doesn't perform well either. For older HD materials, the image often seems too dark – as confirmed by the inflated gamma value. Conversely, with HDR content, the effect is reversed – the image is overly brightened, which we observed in scenes from the movie Pan. This lack of consistency also affects color reproduction accuracy – a test with the ColorChecker showed that many samples deviate significantly from the reference values.

Fortunately, TCL allows manual adjustment of the settings, so we decided to check how the television would perform after our professional calibration. The effects of this correction are described below.

LG B4 has long been known for offering advanced calibration tools, and it remains one of the few manufacturers that allows such in-depth image adjustments. Thanks to these tools, we calibrated the device to an exceptional standard. The result was incredibly low deltaE errors, considered at a reference level. Both SDR and HDR content now display exactly as the filmmaker intended. This level of precision is one of the reasons LG TVs are frequently used as preview monitors in graphic design and post-production studios.

After our professional calibration, the TCL A300 literally got a new lease on life. The image is no longer too warm, and the colors finally look the way they should – which was confirmed by the ColorChecker test, where the color samples finally started hitting their marks, at least to some reasonable degree. It was also possible to partially correct the brightness management – the image is now more balanced and less "wobbly" between different types of content. Of course, certain limitations cannot be overcome – a slightly noticeable blooming effect still occurs, but that's a characteristic of the technology, not something that can be eliminated even after professional settings.

Generally: after calibration, the A300 looks significantly better and gains a completely new quality.

The smoothness of tonal transitions, often overlooked in tests of competing platforms, is a crucial aspect of image quality, especially when watching content with a rich colour palette and complex effects, where textures overlap. This can sometimes result in colour banding or a lack of smooth gradation. The LG B4 performs quite well in terms of smoothing these tonal transitions. However, it has weaker moments, such as bright coloured skies in films like Kingsman and The Martian. Despite these minor issues, they do not significantly detract from the viewing experience. Therefore, we positively assess the quality of tonal transitions in the LG B4.

TCL A300 NXTVision is another frame-style television that really handles the smoothness of color transitions well. It's hard to find clear bands or sharp transitions between shades of the same color here – the overall look is natural and smooth.

However, it must be honestly admitted that among the three tested models (The Frame and S7NQ), TCL performs the weakest in this category. In darker and lighter scenes, delicate imperfections can be noticed. Nevertheless, looking at it as a whole, for a TV in this price range – it really presents itself solidly. It may not be the best among all, but it maintains a very good level.

In this section, we will revisit the smooth transition function while also examining how the TV handles lower-quality content. As we’ve found, the setting responsible for smooth gradation is generally effective, though it does have its drawbacks. While the function works well in SDR content, it becomes less useful in HDR content. Even at the lowest setting, it can blur important details, so we advise against using it in such cases.

The image scaling on the LG B4 is assessed moderately positively. While there is no noticeable edge doubling, the image tends to be somewhat "soft." This can be adjusted by tweaking the sharpness slider to improve the clarity.

TCL A300 handles tonal transitions in high-quality films very well, but the question arises – how does it perform with weaker materials? The television is equipped with a tonal transition smoothing feature, but its effectiveness can be described in one word: "random." In one scene it may work and improve the gradation, and when turned off… the effect remains the same. There is a lack of consistency and predictability.

Image scaling is also not one of the A300's strong suits. In the test pattern, the main character actually looked better than on the raw signal, but with thin lines – like fonts or background details – there was noticeable jaggedness and aliasing. On the plus side, the television does not cut off the image and has no issues with overscan, but the overall quality of scaling is rather average.

The maximum refresh rate on the LG B4 is 120 Hz, the bare minimum for those requiring high image fluidity. The manufacturer has equipped the TV with a multi-stage motion smoother called "TruMotion." This feature is split into two sliders: one controls the sharpness of moving images (De-Blur) and the other adjusts judder (De-Judder). Both sliders can be set between 0 and 10, with each level affecting the smoothness, so users can easily find their preferred setting.

The LG OLED B4 panel boasts an impressive average response time of 0.1 ms (based on our measurements), delivering an exceptionally clear image that surpasses the capabilities of LCD TVs, which often have response times of several milliseconds. This is particularly noticeable in the "UFO Test" images, where no trailing blur is visible behind moving objects.

The TCL A300 is equipped with a 144 Hz panel, which should immediately satisfy practically everyone – both gamers and sports fans. The motion is smooth, and the picture is clear even in fast scenes. Additionally, the television offers a motion enhancement feature called "Motion," where we can find two sliders on a 10-point scale. These allow for adjusting the effect to personal preferences – from a classic, cinematic look with visible frames to a very smooth (though already unnatural) image reminiscent of a soap opera effect. Thanks to this, everyone can find a setting that suits them.

The LG B4 has four full HDMI 2.1 ports, each providing 48Gbps bandwidth. This ensures smooth activation of all relevant features without issues, making the television highly suitable for gaming. With its low input lag and extensive functionality, including well-implemented HGIG mode and Dolby Vision gaming with low latency, the B4 is a strong contender for gamers who demand high quality.

A standout feature is GameBar, which allows for on-the-fly adjustments without interrupting gameplay, as well as image adaptations for those with visual impairments. Another key point is that when VRR technology is enabled, the television maintains its contrast, thanks to the OLED panel's structure, though slight flickering in grey shades is to be expected.

In conclusion, the LG B4 is an ideal choice for gamers, seamlessly combining high performance with excellent gaming features. Its 120Hz panel and HDMI 2.1 ports make it a standout option for those seeking top-tier gaming experiences.

TCL A300 is a television designed not only to transport us to a digital art museum but also to a full-fledged gaming world. It offers practically everything you would expect from gear for gamers: two HDMI 2.1 ports with full bandwidth, 144 Hz refresh rate, VRR support, and ALLM.

The correct implementation of the HGIG mode is also a plus – something that competing Hisense sometimes struggles with. The television easily handles lower resolutions (e.g., Full HD) while maintaining high refresh rates, which will be appreciated by owners of older consoles or PCs.

In addition, there’s an attractive and clear GameBar that facilitates quick access to settings for gamers. The A300 is truly well-prepared for gaming at the highest level – it's just a shame that issues with motion blur slightly tarnish its overall image as a gaming device.

The LG B4 boasts incredibly low latency across all scenarios. Even the most dedicated gamers will appreciate the exceptionally low input lag, which remains at just 5 ms, even during demanding 4K 120 Hz settings with HDR. Notably, latencies are unchanged when Dolby Vision HDR is enabled, a feature that is not always guaranteed by competitors. This consistent performance deserves the highest praise and a strong recommendation.

In terms of input lag, the TCL A300 performs really well. Values below 10 ms at a 120 Hz refresh rate are something many gamers dream of – such low lag is practically imperceptible, both during everyday gaming and in more demanding esports titles. One could indeed point out the result of 23 ms in Dolby Vision mode at 60 frames, but it is still a low enough value that it's hard to have serious objections. In this category, the A300 truly excels.

The LG B4 performs excellently when paired with a PC, thanks to its incredibly low latency of just 13.5 ms, providing near-instantaneous response between the mouse, eye, and screen. Text readability is very good on this television, with sharp fonts achievable by enabling the passthrough option in the settings. The RWBG pixel arrangement has no significant impact on font or letter display, offering a clear advantage over Samsung’s QD-OLED panels. Users of both Windows and macOS-equipped computers will appreciate the solid performance of the LG B4 screen.

If we plan to use the TCL A300 as a monitor for a computer, we may be pleasantly surprised. The television performs really well in this role. It is equipped with a 144 Hz panel, supports G-Sync, and, as we mentioned, offers very low input lag, so gaming on it with a connected PC is pure pleasure.

Working with text is also possible, although with some limitations. The TCL A300 has slight issues displaying dark fonts and thin lines – this stems from the structure of the subpixels, which can be somewhat bothersome in everyday use, even though it looks better in pictures than in reality.

The television supports chroma 4:4:4, but only up to 120 Hz. That's why we noted that this feature is available, but with a limitation – if we care about perfectly legible fonts, it's worth sticking to a refresh rate of 120 Hz. At 144 Hz, the sharpness of the text may suffer slightly.

One of the undeniable advantages of OLED panels, including the LG B4, is their excellent performance during group viewing, maintaining good contrast, colour saturation, and fidelity from different angles. While it doesn’t benefit from MLA technology like other OLED models, the overall performance remains impressive, and owners are unlikely to be dissatisfied. However, it’s worth noting that at sharp angles, a slight greenish tint can be observed. This is a characteristic of WRGB panels from LG that lack micro-lens technology, and unfortunately, this issue cannot be mitigated.

The viewing angles on the TCL A300 NXTVision are – let's be honest – average. The television is equipped with a VA panel, which inherently has quite limited angles, and unfortunately, you can clearly see that here. The film below speaks for itself – even a slight deviation from the axis results in a noticeable drop in contrast and color saturation. It’s a pity that this is another frame-style television that hasn’t done anything about it. After all, we don’t always have the option to sit perfectly straight in front – especially if the device is also meant to serve a decorative function in the living room.

The maximum brightness of the LG B4 in SDR content reaches 370 nits, which is a commendable result for an OLED television, providing comfortable viewing even in well-lit environments. However, there are two important considerations. First, the television's ability to manage reflections is somewhat average, primarily due to the satin finish of the panel. This means that direct light hitting the screen may cause noticeable reflections. Secondly, the screen's brightness when displaying 100% white fill is around 260 nits. This is a noteworthy improvement, as OLED televisions in this price range previously achieved only half that brightness. This enhancement makes the LG B4 well-suited for watching high-brightness content, such as winter sports.

The TCL A300 NXTVision is equipped with a matte panel very similar to the one found in one of its Chinese competitors – the Hisense S7NQ model. Such a surface does quite well in suppressing reflections, although it must be admitted that it performs worse than Samsung's The Frame, which offers a definitely higher level in this respect. As is often the case with matte displays, blacks during the day lose depth and appear more gray than black – and this is no different here. Unfortunately, the fact that the A300 is the darkest television among the tested trio does not help either. As a result, it has a real problem standing out in heavily sunlit rooms.

The LG B4 uses the well-established WebOS system, a staple in LG's smart TVs for many years. This system offers a wide range of essential applications, with only a few notable omissions, such as CDA and KODI. One of WebOS's standout features is its cursor functionality, which activates when the remote control is moved, making it especially convenient for entering search queries or passwords on websites.

In addition, WebOS supports various features such as screen mirroring, AirPlay, voice search in Polish, and Bluetooth headphone connectivity. An added bonus is the ability to use the television’s speakers and headphones simultaneously, which is particularly beneficial for individuals with hearing impairments. For sports enthusiasts, the system also includes alerts for upcoming matches, ensuring you never miss a broadcast.

The home panel in WebOS is another strength, offering seamless control of all smart devices connected to the home network. For example, users receive notifications when a laundry cycle is completed, enhancing the overall convenience of the system.

In conclusion, while WebOS may have some limitations compared to Android TV, it provides stable and fast performance, supporting most key functions users expect. It's a reliable and straightforward operating system for those looking for an easy-to-use interface for their television.

TCL A300 is a television styled like a painting, which in everyday use can successfully imitate a work of art hanging on the wall. It is equipped with a special image display mode, additional frames in a light wood tone, and a flat wall mount that allows the TV to be hung like a real painting – flush against the wall.

A significant advantage of the picture mode is that it is completely free. We have access to dozens of artworks from which we can choose what should be displayed in standby mode – instead of a black screen, the image selected by us stays on the wall. The quality of the graphic reproduction is decent, but it must be admitted that it clearly falls short compared to that of Samsung's ART Store. Although access to the images there is paid, the quality of the scans is significantly better – you can see the texture of the paint, canvas, and details. In the TCL A300, it resembles high-quality photos more than realistic reproductions of artworks. Additionally, the implementation of the picture mode in the system leaves much to be desired. For example – if we set the brightness in picture mode to 10%, this same value automatically transfers to the regular viewing mode, where we could easily set the brightness to 50% or even 100%. It also works the other way around – when we set the brightness to 100% in regular mode, after switching to gallery mode, the images are displayed with that same maximum brightness, shining too intensely and losing the entire effect of "a picture on the wall." These are minor but annoying errors that can ruin the impression of what was supposed to be visually subtle and elegant.

Moving on to more classic features – the A300 runs on the Google TV system, which currently offers by far the largest selection of applications (full list available below). The well-functioning voice assistant with support for the Polish language is also a significant plus. As is standard – as in most TCL televisions – there is a lack of USB recording functionality or picture-in-picture (PiP) mode.

The default file player in the LG B4 performs well with most photo and video formats, supporting a wide range of popular codecs, including Dolby Vision. However, there are a few limitations that may disappoint some users. For example, the TV only supports two photo formats: JPEG and PNG, which could be a downside for those accustomed to the HEIC format used by Apple devices. Unfortunately, there is no native support for HEIC files, but the built-in AirPlay feature can serve as a workaround for Apple users. Additionally, while the TV can handle most video formats, it does not support the H.266 VVC codec, which is currently not widely used.

Another limitation is the lack of support for TXT subtitles, which may be an issue for users who rely on these for certain content. Despite these minor drawbacks, the LG B4 offers a solid file playback experience overall.

The built-in player in the TCL A300 works as it should – most popular video and photo files play without any issues. Although it lacks support for the HEIC format from Apple (which is quite common in many TVs), most users still rely on the AirPlay feature, so it shouldn't pose a major problem. If someone is not satisfied with the default player, the Google TV system offers considerable options – it's easy to install an alternative app that better matches our preferences. Nonetheless, it must be admitted that the factory solution is completely sufficient for everyday use.

The audio system in the LG OLED B4 is quite decent and performs well within its price range. The bass is noticeable but does not overwhelm the other frequencies, resulting in a balanced sound overall. While the built-in speakers are adequate for casual viewing, it is likely that most users opting for a high-quality OLED display will already have an external audio system to enhance their experience. However, the inclusion of DTS-HD Master Audio and Dolby Atmos codecs adds value, offering more advanced audio support for those who connect external sound systems. This makes the B4 a solid choice for users prioritising image and sound quality.

When it comes to sound, the TCL A300W – like its competitors – sounds quite... flat, after all, we are talking about a super slim TV. For everyday watching of news or series, this level is completely sufficient, but during movie screenings, it may clearly lack depth and space. On the plus side, it’s worth noting that the TV supports both Dolby Atmos and the increasingly rare DTS:X – which provides more options when connecting an external audio system. It’s also worth mentioning that the A300 PRO model is equipped with a dedicated, flat soundbar. And it's no ordinary one – it sounds better than most of the TVs we tested.

LG 55 B4 vs TCL A300W NXTVision

Advantages

Disadvantages

Our verdict

TV appearance

Where to buy

Contrast and black detail

HDR effect quality

Factory color reproduction

Color reproduction after calibration

Smoothness of tonal transitions

Image scaling and smoothness of tonal transitions

Blur and motion smoothness

Console compatibility and gaming features

Input lag

Compatibility with PC

Viewing angles

TV efficiency during daytime

Details about the matrix

TV features

Playing files from USB

Apps

Sound