The LG G5 was one of many best-performing TVs of 2025, delivering distinctive image high quality and efficiency that set a robust bar for the perfect OLED TVs to comply with. The G5 was a wonderful flagship OLED, so it meant its successor, the LG G6, must show itself towards its predecessor.
I really already in contrast the LG G6 side-by-side with the LG G5 as soon as, and was impressed with the outcomes of the G6. It proved to have extra pure colours, extra correct distinction with deeper blacks, and proved to be higher in brilliant rooms, because of its superior reflection dealing with. It additionally posted spectacular brightness boosts, particularly in fullscreen.
Nevertheless, since then, LG has launched a brand new firmware replace for the G6, which it says makes changes to brightness. The colour vibrancy had already been adjusted within the G6’s Filmmaker Mode (in comparison with the G5’s) after suggestions. Now, it appears the G6 has had its general brightness tweaked freshly. So, I utilized the replace to see what it had performed and re-evaluate the G5 and G6 side-by-side once more.
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I have never written about black ranges, shadow element or sound comparisons right here — I wrote about them in my unique article, however these remained basically unchanged, so for my ideas on these, take a look at my unique article right here.
Modifications from the firmware replace
Some peak areas on the G5 (left) seem notably brilliant, whereas they seem extra muted on the G6 (proper) (Picture credit score: Future)
Moderately than go into an excessive amount of element concerning the firmware updates modifications, I’ll give a short abstract right here. Firstly, I discovered that perceived brightness had been decreased within the G6.
Colours have been already extra pure on the G6, however once more the brightness of mentioned colours on the G6 has been toned down, to present an much more balanced look. In some scenes nevertheless, the G6’s colours had extra depth and richness. I’ll get into what colours regarded like on the G6 shortly.
A number of the main modifications got here in my goal measurements. Whereas there have been minute brightness will increase in SDR, the main change got here in HDR Filmmaker Mode. I’d measured HDR brightness on a 2% window at 3,326 nits earlier than the replace. Publish-update, this had dropped to 2,504 nits. Whereas this will appear odd, that is in-line with the brightness limiting I’d anticipated, to enhance tonal accuracy throughout the vary.
These EOTF graphs present that the LG G6 (proper) is extra correct at low brightness, being nearer to the yellow line — however at larger brightness, it seems to be somewhat darker than it arguably needs to be in comparison with the LG G5 (left) (Picture credit score: Future)
The above EOTF graphs have been measured with a goal of 1,000 nits. This measures how precisely a TV shows HDR ranges. The nearer a TV sticks to the yellow ‘reference’ line, the higher.
Apparently, the G6 was extra correct at low brightness/darker areas (which is sensible primarily based on my darkish scene testing), whereas the G5 was barely extra correct with highlights and brighter areas. This really felt totally different to me in real-world viewing with HDR and Dolby Imaginative and prescient content material, the place it felt just like the G6’s picture was higher balanced general, they have been attention-grabbing outcomes nonetheless.
What to learn subsequent
To make clear, neither the G5 nor the G6 have been calibrated. When taking measurements, we use out-of-the-box settings as a result of that is what the huge, overwhelming majority of individuals at residence will reside with.
Brightness
The sky on this funeral scene from The Batman seems extra correct on the G6 (proper) than the G5, the place it borders on too brilliant for me (Picture credit score: Warner Bros. / Future)
Apart from the modifications within the tiny HDR peak brightness home windows I discussed above, the measured brightness figures of the G6 have been near what they have been pre-update, with lower than 50 nits distinction in most window dimension, and simply 10 nits in fullscreen. The true variations got here in real-world scenes.
The G6’s perceived brightness has been toned down in some scenes, for my part. In the course of the funeral scene from The Batman, because the digicam cuts to an overhead shot, the gray/white sky regarded brighter in Dolby Imaginative and prescient Filmmaker Mode on the G5 than the G6. Whereas each regarded good, the G6 regarded extra correct to the film itself.
Utilizing the identical snow scenes from the Spears & Munsil footage I used final time I examined, some white tones regarded somewhat too punchy on the G5, however the G6 had a extra uniform white tone throughout the entire display screen and really regarded brighter general, presumably as a result of superior full-screen brightness obtainable within the new panel.
Colours
Whereas the LG G6 (proper) makes Mia’s yellow costume seem richer, it additionally presents extra genuine and detailed colours of the background bushes in La La Land (Picture credit score: Future)
I made a decision to make use of La La Land for colour evaluation this time round, not solely as a result of it has some putting colour in scenes, but in addition as a result of it solely helps HDR10, no Dolby Imaginative and prescient, so the TV’s personal tone-mapping is extra concerned.
In the course of the daytime scene, it was attention-grabbing to see that whereas Mia’s yellow costume regarded bolder and richer on the G6, the greens of the bushes within the background have been toned down and appeared extra pure, whereas they appeared a bit too saturated as compared on the G5. Mia’s costume on the G5 regarded paler.
In keeping with LG, there is a distinction between the G5 and G6’s colours partly as a result of colour luminance (their brightness) in HDR Filmmaker Mode being toned down for the G6 after suggestions concerning the G5’s trying too brilliant.
A later scene the place Sebastian walks on the pier at sundown seems reveals this, because the orange, pink and purple sky has brighter colours on the G5, however I believe they they appear extra genuine on the G6.
The G6 (proper) has toned down colour luminance in comparison with the G5 within the sky from La La Land, an intentional change LG says it made to HDR Filmmaker Mode (Picture credit score: Lionsgate / Future)
Switching to a Dolby Imaginative and prescient film as soon as extra, The Sound of Music, and the identical is true. The inexperienced grass and blue skies of any scenes on the mountains present the G6’s perceived higher colour accuracy. The G6 is stronger at selecting out particular person shades of grass, whereas on the G5 they much less differentiated, and look a contact oversaturated subsequent to the G6.
Actually, it’s spectacular to see that the G6 delivers richer colours with larger depth for bolder colours equivalent to crimson, orange and yellow, whereas additionally trying extra correct with greens and blues. It could sound just like the G5 has unhealthy colour replica from what I am saying, but it surely completely doesn’t — it’s wonderful the truth is. However the G6 manages to nail the specifics
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