Sony Bravia 7 (XR70) vs LG NANO81A / NANO80A

Now that we know the TV handles contrast well, let’s check how it performs in terms of HDR effects. The luminance graph shows very high capabilities for this model – 1500 nits is truly an impressive result. HDR effects are particularly striking in scenes where most of the screen is covered in light, such as in the 1st, 3rd, and 5th test scenes. Minor imperfections, typical of this technology, are still visible with very small light effects, as seen in the scene from the film "Sicario 2," where brightness drops to 500 nits. Although these aren't staggering results, they can be considered decent. Additionally, it's worth praising the TV for its high coverage of a wide colour gamut – DCI-P3 at 96%, which allows for vibrant, saturated colours.

If you're hoping that HDR on the NANO81A will bring tears to your eyes, I have to disappoint you. This TV is just too dark to show what this format is really about. With a brightness of only 250 nits, HDR really only exists on paper here. In practice, during viewing, it's very hard to tell whether we're watching material in high dynamic range or regular SDR – it simply lacks that “punch” of light in the bright parts of the image. But, to balance out the criticism, we do have one light at the end of the tunnel – and quite a distinct one at that. It's about colour gamut coverage. Here, the NanoCell filter shows that it's not just marketing nonsense. Our measurements indicated that the coverage of the DCI-P3 space is around 88%. That's a really solid result, placing this model significantly above typical budget models based on regular white LEDs without any filters. Of course, it still lags a bit behind QLED TVs or advanced panels with PFS filters, but for this price range, the colours are surprisingly saturated and vibrant. It’s just a shame that this low brightness doesn't allow them to fully “spread their wings” with the Nano filter.

The IMAX Enhanced mode on the Sony BRAVIA 7 TV is definitely the best mode available on this model, although it is not without its flaws, as its name might suggest. The biggest issue is white balance – both in HD and 4K HDR content, there is a noticeable dominance of the red colour, which causes the image to take on pinkish hues. This is particularly evident on the test image with snow, where the pinkish tint becomes very noticeable. Errors in the Colour Checker test also confirm these deviations – although they are not catastrophic, there is a tendency to lean towards warmer tones. In terms of brightness characteristics, the gamma remains at a decent level with a slight spike but without major issues. However, the biggest challenge is with 4K material. It is clear that the EOTF curve is significantly above the reference graph, making the image appear overly bright.

For every film fan, the natural choice in LG televisions is the Filmmaker Mode. It is designed to show the image as the director intended – without unnecessary "enhancements". Unfortunately, in the case of our test unit NANO81A, the factory settings left a bit to be desired. The main issue turned out to be the white balance. Measurements revealed a distinct deficiency of blue, which in practice meant that many scenes had a slightly yellowish, even "yellowed" tint. The white wasn’t perfectly clean, which took away the freshness of the image. Additionally, the brightness management wasn't perfect either – the factory-set gamma was too low. The image often appeared oversaturated, as if it had been pulled too much from the shadows, which detracted from its naturalness and depth. Fortunately, LG, even in this relatively low price range, does not block access to advanced settings. The calibration options for this model are extensive, which is a significant plus for those who enjoy "fiddling" in the menu. We decided to approach the matter our way and see how much we could squeeze out of this panel with professional calibration.

Sony BRAVIA XR70 offers a wide range of tools that allow you to customise the image to your own preferences, enabling significant adjustments to the settings. White balance has been freed from the red colour dominance issue – snow no longer takes on pink hues, which was previously noticeable. Although there are slight deviations in the final part of the white balance chart regarding a drop in blue colour, they are acceptable and difficult to notice in everyday use. The Colour Checker test confirms that colour reproduction errors are no longer as pronounced and rarely exceed a value of 2, which is a very good result. As for brightness, gamma, although it didn't require major improvement, has been slightly adjusted. However, the most significant change has been noted in the EOTF curve – the television no longer has issues with excessively brightening the entire image in 4K materials. However, upon closer examination and incorporating the EOTF characteristics in film materials, some limitations of the television become apparent due to the previously discussed dimming algorithm. Some small elements may be slightly more illuminated, but these errors are minor enough that most users won't notice them. Overall, the calibration results are very, very positive.

After calibration, the NANO81A is a completely different television. What LG offers in terms of image enhancement tools, even in such an affordable model, deserves major credit. We were able to completely eliminate that annoying yellowing of whites and make the colours natural, vibrant, and simply "real". In SDR content (i.e., regular television, YouTube, or older films), the picture now looks miles better – it’s clean, well-balanced, and no longer strains the eyes with strange hues. It’s clear that this panel has significant potential, which is simply wasted out of the box due to poor presets. However, we have one serious reservation that calibration cannot fully overcome – it's about brightness management in HDR mode. The LG algorithm in this model is very conservative. The TV deliberately dims the HDR image to avoid clipping the already weak blacks of the IPS panel. The developers faced a choice: either provide more light and accept that black would become light grey, or dial down the brightness to maintain any contrast. They chose the latter. Despite this, after our adjustments, watching anything on the NANO81 is considerably better.

Since we know that the television handles high-quality content very well, it's worth checking how it performs with lower-quality material. Here, the television shows its potential, and the graphics processor used works remarkably well. On the test screen with the light bulb, there are no issues with colour blending, and the gentle gradation function works very well – we recommend setting it to "Medium".

When it comes to digital processing, or the so-called upscaling, the television sharpens the image quite significantly, which leads to a slight jaggedness, for example on branches in the background, but it doesn't remove desired details. Despite this, the overall appearance is really attractive and may appeal to most users. However, if you prefer a softer, more plastic image, you can reduce this effect in the settings by adjusting the sharpness level to your liking.

It often happens that cheap 4K panels ruthlessly expose all the "dirty laundry" and imperfections in lower resolution materials. However, with the LG NANO81A, the situation is completely different. It's a really solid performer when it comes to handling content that's far from ideal. The built-in processor does a great job with upscaling. Even older recordings look quite decent on this screen – the image is coherent, cleaned of digital noise, and simply pleasant to the eye. A big plus is the gradation reduction feature, which you can find in the settings. It is exceptionally effective in combating colour banding, which is a godsend when watching low bitrate materials, such as from some streaming services or older files from the web. However, it is worth maintaining a certain vigilance. Since we are dealing with a less powerful chip than in LG's top models, too aggressive a setting for this option can sometimes result in minor artifacts or slight blurring of details. Despite this risk, I definitely encourage experimentation with this feature – in many cases, it can save the viewing experience and make low-quality material fully watchable.

The Sony BRAVIA 7 TV with a 120 Hz panel will satisfy most users in terms of motion fluidity. Additionally, Sony offers a Motion Flow feature that allows for the selection of three different picture settings, adjusting them to personal preferences: Smoothness – Film: This setting improves motion fluidity, giving the image a more cinematic or theatrical quality. Smoothness – Camera: This setting provides even greater fluidity, useful for watching dynamic scenes like sports broadcasts. Clarity: This setting focuses on minimising noise and motion artifacts, resulting in a more stable and clear image.

In terms of motion fluidity, the NANO81A unfortunately has a bit of a hurdle. The television is based on a panel with a refresh rate of 60Hz. If you're looking for perfect sharpness in dynamic football matches or fast-paced action games, you might feel somewhat dissatisfied. With such a low native refresh rate, fast objects on the screen will always be a bit blurry.

Sony Bravia 7 has significantly improved its capabilities in terms of compatibility with consoles compared to earlier models. The TV supports variable refresh rate (VRR), which eliminates screen tearing, and it syncs with graphics cards to ensure smooth display. The automatic low latency mode (ALLM) effectively reduces input lag, which is crucial in dynamic games. Dolby Vision with low latency further delivers impressive HDR effects that look great during gameplay.

Sony Bravia 7 also offers a Game Bar feature, providing quick access to settings and monitoring parameters while gaming. An interesting option is the ability to enable a virtual on-screen reticle, which can give a slight advantage in shooter games. However, compared to the Bravia 9 model, the HGIG feature in the Bravia 7 doesn't perform as well, which may be noticeable for more demanding gamers – particularly as the HGIG mode is becoming increasingly popular among gamers as the preferred method for reproducing HDR effects.

A downside is the lack of support for 1440p@120 Hz resolution, which could make gaming easier for users with less powerful graphics cards. Additionally, the Sony Bravia 7 is equipped with two HDMI 2.1 ports, one of which is often used to connect an audio system via eARC, limiting the number of available ports for connecting next-gen consoles.

NANO81A is unfortunately not a device designed with esports in mind. The lack of 120 Hz signal support is a fact that users planning to purchase this model simply have to accept. Nevertheless, LG’s engineers have worked hard to squeeze the maximum potential from this 60 Hz panel, offering a set of features that genuinely improve gaming comfort. First and foremost, the television supports VRR technology (in the range of 48–60 Hz) and ALLM. This ensures that the image remains stable and does not "tear," and the device automatically switches to low latency mode as soon as it detects a signal from a console. Managing these settings is extremely simple thanks to a dedicated system overlay that allows for a quick preview of parameters without leaving the game. A very significant advantage is support for the HGiG format. This solution is crucial for owners of modern consoles, as it allows the television to correctly "understand" the intentions of game developers regarding HDR tone mapping. In practice, this helps avoid the effect of "blown-out" bright spots, such as clouds or light sources, which is unfortunately a common issue in budget LCD televisions.