LG UR781 vs Sony Bravia 7 (XR70)

In HDR mode, LG UR781 unfortunately does not impress with its brightness. In tests on five screens, the television achieved only around 200 nits, which is quite a low value for HDR standards. This brightness is similar to levels typical for SDR, causing HDR effects to be insufficiently pronounced, and the image may appear less impressive, especially in dynamic, bright scenes. In HDR mode, it has certain limitations in colour reproduction. This means that colours may not be as intense and rich as in televisions that manage better with a wide colour gamut. In practice, this can make the image less vibrant and dynamic, and HDR effects will not be as spectacular as one might expect. Additionally, UR781 LG has some issues with accurately reproducing colours in HDR mode, resulting in content that may look less vivid.

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

The colour reproduction in LG UR781 in Filmmaker Mode, which although is the best mode available from the factory settings, is not without its flaws. Firstly, the issue is white balance, where the graph shows dips in blue colour levels. This phenomenon results in a shift of hues towards yellow tones, causing the image to appear warmer than it should. Such deviation means that the colours on the screen are not naturally reproduced, which can be particularly noticeable in scenes with a white or neutral background. This can be confirmed by the Test Color Checker, which showed that some colours "shift" into other shades, meaning that the LG UR781 television does not display colours in accordance with reality. This distortion can affect the visual experience, making movie scenes seem less realistic, and details might be displayed in inappropriate colours, negatively impacting the overall image quality.

In terms of contrast, the analysis of the gamma graph revealed drops to a level of 2.0, whereas the optimal value should be 2.4. This means that the television may display darker parts of the image brighter in certain scenes, which reduces their depth and dynamics. Additionally, on the EOTF curve, which is responsible for brightness reproduction, an unnatural spike was observed at the beginning. This phenomenon can result in excessive brightness boost in the brightest parts of the image, leading to loss of detail in very bright scenes.

The IMAX Enhanced mode on the Sony BRAVIA 7 television is undoubtedly the best mode available on this model, although it is not without its flaws, as its name might suggest. The biggest issue is the white balance – both in HD and 4K HDR content, there is a clear dominance of red, which causes the image to take on pink hues. This is particularly noticeable on the tested snow pattern, where the pinkish tint becomes very apparent. Errors in the Colour Checker test also confirm these deviations – although they are not catastrophic, there is a tendency to drift towards warmer colours. As for brightness performance, the gamma remains at a decent level with a slight peak but without major issues. However, the biggest challenge comes from 4K materials. It is clear that the EOTF curve is significantly above the reference graph, which causes the image to become overly brightened.

After calibration, the colour representation in SDR content is quite good. The white balance has been effectively improved, resulting in natural, balanced hues across various scenes. The gamma has also been adjusted, providing more precise detail in the shadows and highlights of the image. As a result, the LG UR781 television performs well in everyday use, offering solid colour quality and clear, well-balanced images in SDR mode.

However, the situation is worse for HDR content. The LG UR781 television does not support a wide colour gamut, which limits the depth and richness of colours that HDR can offer. The EOTF curve deviates from the ideal, resulting in excessive highlighting of details in the bright parts of the image. Unfortunately, this results in significant colour reproduction errors, as confirmed by tests on the Colour Checker. Additionally, the low brightness level of the panel further negatively impacts the quality of HDR images, causing dynamic range effects to be not fully realised, and colours to appear washed out.

Despite some shortcomings in HDR mode, the television has improved significantly after calibration, especially in SDR content. The improvement in white balance and gamma has greatly enhanced image quality, providing a more natural and cohesive colour representation. Compared to its state before calibration, the difference is clear, and the LG UR781 television now offers better performance in everyday use, particularly in the standard dynamic range.

Sony BRAVIA XR70 offers a wide range of tools that allow for adjusting the picture to individual preferences, enabling us to make significant adjustments to the settings. The white balance has been free from the problem of red colour dominance – snow no longer takes on pink shades, which was previously noticeable. Although one can detect slight deviations in the final part of the white balance graph, concerning a drop in blue colour, they are acceptable and difficult to notice in everyday use. The Colour Checker test confirms that errors in colour reproduction are no longer as pronounced and rarely exceed a value of 2, which is a very good result. As for brightness, gamma, while not requiring much improvement, was slightly adjusted. The most significant change was noted in the EOTF curve – the television no longer has issues with excessively brightening the entire image in 4K material. However, upon closer analysis and the inclusion of EOTF characteristics in film material, some limitations of the television become apparent due to the previously discussed dimming algorithm. Some small elements may be slightly more brightened, but these errors are so minor that most users will not notice them. Overall, the calibration results are very, very positive.

Now let’s address the function of smoothing tonal transitions and its impact on overall image quality. As illustrated in the photo on the left, this function performs exceptionally mediocrely; we selected the "low" level, which does not improve quality but also does not blur the film grain. There is the option to increase the power of this function, which would soften the gradation; however, one must reckon with the fact that the image will be too softened in some scenes.

On the other hand, regarding image scaling, the television does not perform exceptionally, which can be particularly noticeable with lower resolution content. The LG UR781 television applies a slight, artificial sharpness boost, which makes the image appear sharper, but this primarily results from the overlay of artificial contours. For some users, this can be an advantage, as they prefer more vivid, accentuated details. However, this is a subjective matter—such an effect may not appeal to everyone, especially if they desire a more natural look to the image.

Since we know that the television performs very well with high-quality materials, it is worth checking how it fares with lower-quality content. Here, the television shows its potential, and the applied graphics processor works really brilliantly. On the test screen with the light bulb, there are no issues with colour transitions, and the smooth gradation feature works very well – we recommend setting it to "Medium".

As for digital processing, or so-called upscaling, the television sharpens the image quite noticeably, which leads to slight aliasing, for example, on the branches in the background, but it does not remove desirable details. Nevertheless, the overall appearance is really appealing and may be to the taste of most users. However, if we prefer a softer, more plastic image, this effect can be reduced in the settings by adjusting the sharpening level according to personal preferences.

The LG UR781 television offers quite decent smoothness for films, thanks to the "True Motion" option, which allows users to adjust the level of motion smoothing on a scale from 0 to 10. The user can choose whether they want to preserve a more traditional, cinematic effect with subtle judder (lower settings) or prefer a smoother, theatrical image that, although slightly deviating from the cinematic standard, may appeal to many.

In dynamic sports content and games, the LG UR781 television performs worse. The television has a 60Hz panel, which limits its interpolation capabilities to these values; therefore, it can improve fluidity in films but cannot reduce motion blur. Additionally, the lack of support for 120 Hz and BFI (Black Frame Insertion) technology means that quick movements of objects become blurred, and the response time of the panel is too long, negatively affecting clarity in fast scenes. As a result, the television may not meet the expectations of gamers and sports fans who are looking for a smooth, clear image without motion blur.

The Sony BRAVIA 7 television with a 120 Hz display will satisfy most users in terms of motion smoothness. Additionally, Sony offers the Motion Flow feature, which allows for the selection of three different picture settings, tailoring them to individual preferences: Smoothness – Film: This setting enhances motion smoothness, giving the image a more cinematic or theatrical quality. Smoothness – Camera: This setting provides even greater smoothness, useful when watching dynamic scenes such as sports broadcasts. Clarity: This setting focuses on minimising noise and motion artifacts, resulting in a more stable and clear image.

While gaming on the console, the television LG UR781 offers several important features that can affect the gaming experience, but it also has some limitations. A positive aspect is the presence of ALLM (Auto Low Latency Mode), which automatically optimises picture settings by switching the television LG UR781 into low latency mode, which is beneficial for gamers. The television also supports proper implementation of HGiG, meaning HDR games look as intended by the developers.

Unfortunately, it lacks support for Variable Refresh Rate (VRR), which may result in poorer fluidity of gameplay, particularly in more dynamic games. It also does not support Dolby Vision mode for games, which limits the HDR picture quality in games using this format. The television has a panel with a frequency of 60hz, which means it does not support higher frequencies at other resolutions, such as 1080p@120Hz, 1440p@120Hz, or 4K@120Hz, which is a significant drawback for gamers expecting smoother gameplay at higher resolutions. It also lacks support for G-Sync technology, which limits image synchronisation in games.

However, a positive aspect is the presence of the Game Bar feature, which allows quick access to settings for gamers and makes it easier to adjust picture parameters during gameplay.

Sony Bravia 7 has significantly improved its capabilities for working with consoles compared to earlier models. The television supports variable refresh rate (VRR), which eliminates the tearing effect, and is compatible with graphics cards, ensuring smooth display. The auto low latency mode (ALLM) effectively reduces input lag, which is crucial in dynamic games. Dolby Vision with low latency additionally provides impressive HDR effects that look great during gameplay.

Sony Bravia 7 also offers a Game Bar feature, which allows quick access to settings and monitoring parameters while gaming. An interesting option is the ability to enable a virtual on-screen crosshair, which can provide a slight advantage in shooter games. Nevertheless, compared to the Bravia 9 model, the HGIG feature in the Bravia 7 does not perform as well, which may be noticeable for more demanding gamers – especially as the HGIG mode is becoming increasingly popular among players as the preferred method for reproducing HDR effects.

A drawback is the lack of support for 1440p@120 Hz resolution, which could make gaming easier for users with less powerful graphics cards. Furthermore, 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 available connections for new generation consoles.