LG 55 B4 vs Samsung The Frame LS03D

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.

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 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.

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.

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 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.

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.

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.

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.

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 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.

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.