LG NANO82T6B vs Haier K85F

The brightness of the LG NANO82T is rather average, especially compared to other TVs in a similar price range. With a peak brightness of approximately 280 nits, it falls short of many competitors offering levels exceeding 400-500 nits. This limitation impacts the viewing experience, particularly for HDR content. Bright areas of the image may lack definition, and the HDR effect fails to deliver the dramatic impact expected from higher-end displays, making the overall image less striking in well-lit scenes.

Now let's move on to one of the hottest topics in the world of televisions, which is the quality of HDR effect. In the case of the Haier K85F model, we must unfortunately make it clear: if you are looking for equipment to watch content in a wide dynamic range, you should steer clear of this model. The main issue is its very low peak brightness, which during our tests barely reached 250 nits. To give you a better idea of what this means – such a value is okay for watching standard SDR materials, but it is absolutely insufficient to show any real benefits of HDR. The image simply lacks the "power" to generate bright, striking bursts. All our measurements and tests on specialist patterns only confirmed this. As if that weren't enough, the television also struggles with color reproduction. In this budget model, we won't find any technologies that expand the color palette, such as quantum dot layers (known in marketing as "QLED"). As a result, the coverage of the DCI-P3 color space, which is crucial for HDR materials, is only about 80%. In practice, this means that the image will not only be dark but also devoid of vibrant, saturated colors that the director wanted to show us.

The colour reproduction in the LG NANO82T in Filmmaker mode, while the best factory setting available, does have flaws. The primary issue lies in white balance, where measurements reveal a drop in the level of blue. This shifts towards yellow hues, making the image warmer than intended. Such deviations prevent natural colour reproduction, especially in scenes with white or neutral backgrounds. For instance, in Star Wars, where numerous elements should appear white, the colours deviate noticeably. The Color Checker test corroborates this, showing some shades "escaping" into others, further highlighting the lack of accurate colour rendering.

In terms of contrast, the gamma graph analysis showed a drop to 2.1, falling short of the optimal 2.4. This leads to darker parts of the image appearing brighter, reducing depth and dynamism. Additionally, the EOTF curve, which governs brightness reproduction, shows a slight spike at the start. This can result in an excessive brightness boost in the brightest areas, causing a loss of detail in very bright scenes.

Well, how does the television perform with colors straight from the factory, without any intervention from our side? The Haier K85F offers a full range of picture modes, such as Dynamic or Eco, but for anyone who wants to watch movies according to the creators' intentions, only one really matters: Film mode. This is the mode we focused our tests on, and unfortunately, its name has little to do with reality. The picture in the factory settings is far from what we could call cinematic fidelity and requires many adjustments. Let's start with the white balance, which has a clear lack of red color. In practice, this means that the whole picture has a cool, bluish tint. The situation is even worse when it comes to brightness management, specifically gamma curves (for SDR) and EOTF (for HDR). Their graph resembles a real rollercoaster, which has a disastrous effect on the viewing experience. This results in unnatural dimming of SDR content, causing details in the shadows to get lost, and in the case of HDR – excessive brightness, which further exacerbates the issue of highlights. This combination, meaning too cool white combined with chaotic brightness and excessive blue color saturation, causes enormous errors in color reproduction. Our measurements on a specialized ColorChecker chart showed errors (Delta E) regularly reaching and exceeding values of 8-9. In simpler terms: errors above the threshold of 3 are easily noticeable to the naked eye, so such a result means that the colors on the screen are simply heavily distorted.

After calibration, the colour reproduction in SDR content on the LG NANO82T is impressive. The white balance has been effectively corrected, resulting in natural, balanced tones across various scenes. Gamma adjustments ensure more precise rendering of details in shadows and bright areas, enhancing the viewing experience. These improvements allow the television to perform well in everyday use, delivering solid colour accuracy and well-balanced images in SDR mode.

Unfortunately, the situation with HDR content is less satisfactory. The TV lacks support for a wide colour gamut, limiting the depth and richness that HDR can achieve. The EOTF curve deviates from the ideal, leading to overemphasis on details in brighter areas. This causes noticeable colour reproduction errors, as confirmed by Colour Checker tests. Additionally, the panel's low brightness further hampers HDR image quality, diminishing dynamic range effects and causing colours to appear washed out.

Overall, the TV significantly improves after calibration, particularly in SDR mode. The enhancements to white balance and gamma elevate image quality, offering more natural and cohesive colour reproduction. Compared to its pre-calibration state, the difference is evident, and the television now performs noticeably better in standard dynamic range scenarios.

Well, is there anything we can do about this image? Can professional calibration save the situation? The answer is: both yes and no. It must be clearly stated that there are certain things we cannot overcome. The limitations of the construction itself, namely a poor panel and its narrow color coverage, mean that you can forget about achieving meaningful HDR – we won’t sugarcoat it for you. The biggest beneficiary of our adjustments is undoubtedly the SDR mode, and it is precisely for watching such content, after calibration, that this television begins to make sense. We managed to tame the white balance in our own way. Although the TV only offers basic 2-point adjustment (instead of precise 20-point), it’s not perfect, but we successfully eliminated that unpleasant, cold "chill" in the image. Above all, however, we recorded a significant improvement in brightness management. The gamma curve, which previously resembled a rollercoaster, looks like an almost perfectly straight line after calibration. This is a sign that the TV can finally display images without artificially dimming or brightening them. The conclusion is simple: even in the case of such a cheap television, professional adjustment of the settings can achieve a lot and draw out its maximum potential.

The LG NANO82T features a "Smooth Gradation" option for handling tonal transitions in low-quality materials. The "Low" setting improves the most problematic transitions, providing a noticeable and helpful enhancement. However, the "High" setting, while further smoothing tonal transitions, sacrifices some detail in the process. This can be a compromise that not all viewers will appreciate.

The image scaling on the LG NANO82T has some limitations, particularly when displaying lower-resolution content. The TV applies a subtle artificial sharpening, which makes the image appear sharper, but this effect is mainly due to artificial contours. Some users may find this beneficial, as it highlights details more prominently, but for others who prefer a more natural image, it may appear overly processed and artificial. This is a subjective preference that varies from viewer to viewer.

Let's move on to digital processing and image scaling, that is, how the Haier K85F handles lower resolution signals, for example, from standard television. Right from the start, we encounter an extremely annoying and completely incomprehensible issue – the overscan feature is enabled by default. This means that the television artificially enlarges the image, cropping its edges, and this occurs on every source, even 1080p. To see the full frame, you have to dig into the screen settings every time and manually switch the format to "stretch to 16:9." It's a detail, but incredibly frustrating. The scaling of content to 4K resolution can be described in one word: acceptable. And that's basically it. The image processor does not strip the image of details, nor does it generate jagged edges or other artifacts. It simply does its job, without any fireworks. It's fine, but nothing more. The biggest and most noticeable shortcoming in the digital processing section is the absence of a banding smoothing function. This is an algorithm that could significantly reduce the annoying banding effect we mentioned earlier. Unfortunately, the manufacturer did not implement such a solution, condemning us to watch the imperfections of the panel and low-quality materials in all their glory.

LG televisions, including the NANO82T, come with an interesting motion smoother called TruMotion providing users with control over the quality of films they watch. The TruMotion feature allows adjustment of the motion fluidity on a 10-point scale, offering a personalised visual experience.

However, when it comes to more dynamic content, such as games or action films, the performance falls short. With its 60Hz panel and relatively slow pixel response, motion fluidity is less than ideal. This results in noticeable trailing and less smooth playback during fast-paced scenes.

Overall, the LG NANO82T is a good option for those who primarily watch movies and prefer more subdued content. Viewers who prioritise fast, dynamic motion, may prefer an alternative model.

The panel in the K85F model operates at a native refresh rate of 60 Hz, which already sets certain expectations for smoothness of the image right from the start. However, we must admit that we were very positively surprised when we found not one, but two separate sliders for motion control in the settings menu: one labeled "Blur Reduction" and the other "De-Judder." Such generosity in this price segment is an absolute rarity, as usually manufacturers offer at most one common option. Unfortunately, our enthusiasm quickly dwindled as fast as it appeared. It soon became clear why Haier was so "generous" – the slider responsible for blur reduction is simply a dummy. Moving it does not produce any visible effect on the screen; thus, only one of the two options actually works.

When playing on the console, the LG NANO82T offers several features that can enhance the gaming experience, though it also has some limitations. Notably, the ALLM (Auto Low Latency Mode) feature stands out, automatically adjusting picture settings to switch the television to low latency mode, which is especially beneficial for gamers requiring quick reactions. Another advantage is the support for HGiG (HDR Gaming Interest Group), ensuring HDR games are displayed as intended by the creators and providing vibrant and realistic visuals. These features contribute to a solid gaming experience, but there are some drawbacks, particularly in fast-paced scenes.

The LG NANO82T has limitations when it comes to advanced gaming features. It lacks support for variable refresh rate (VRR), which affects gameplay smoothness, especially in more dynamic games. The TV's 60Hz panel restricts the ability to use higher refresh rates, a significant downside for gamers seeking smoother gameplay at higher resolutions. Additionally, the absence of G-Sync technology limits image synchronisation, potentially leading to tearing and stuttering during gameplay.

These limitations mean that while the LG NANO82T offers a good gaming experience for casual gamers, it may not meet the expectations of more demanding players seeking advanced features and maximum image fluidity.

These shortcomings may mean that the LG NANO82T does not meet the expectations of the most demanding gamers looking for advanced features and the highest image fluidity.

Let's move on to the features for gamers, although we must point out right away that this is more of a proposal for "casual" players. The manufacturer boasts in the specifications about the presence of HDMI 2.1 ports, which looks impressive on paper, but in reality, it is largely a marketing gimmick. What good is a modern port when the heart of the television is a panel with a refresh rate of 60 Hz? It physically cannot display a signal at 120 frames per second, even at lower resolutions, which takes away HDMI 2.1's most important advantage. That's a shame. (That’s why we mark it as HDMI 2.0 ports in our tests). Another oddity is the television's response to attempts to calibrate HDR from the console. Changes in brightness settings cause very unnatural behavior of the image, which might suggest an incorrect implementation of the HGiG standard. To be honest, however, you shouldn't worry too much about this, because as we have mentioned multiple times, we simply do not recommend using any HDR content on this screen. However, to make it not so bitter, the Haier K85F also has two significant and unexpected advantages. The first is the presence of ALLM, or Auto Low Latency Mode, which switches the television to low latency mode as soon as it detects a connected console. The second, even bigger surprise is support for VRR, or Variable Refresh Rate. Although it works in a very modest range of 48-60 Hz, its very presence is commendable. Thanks to this, the image in games can stutter less, which truly improves the gaming experience.