Direct comparison
G64LW / G66LS
Panel type: LCD VA
Resolution: 3840x2160
System: VIDAA
Model year: 2025
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Panel type: WRGB OLED
Resolution: 3840x2160
System: WebOS
Model year: 2026
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Overall rating
6.0
8.7
Movies and series in UHD quality
5.9
8.6
Classic TV, YouTube
5.8
8.7
Sports broadcasts (TV and apps)
5.0
8.6
Gaming on console
6.9
9.5
TV as a computer monitor
5.6
8.7
Watching in bright light
5.0
8.2
Utility functions
7.8
8.5
Apps
7.7
9.1
Sound quality
6.0
8.4
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High brightness in HDR and SDR
Excellent anti-reflective coating
Reference-grade colors (after calibration can match a reference monitor)
Full support for gamers (HDMI 2.1, 165 Hz, VRR, ALLM)
Low input lag (under 5 ms)
Smooth motion and sharpness
Full support for Dolby Vision
Functional webOS with Magic Remote support
5-year panel warranty included
Very annoying dithering: graininess and flickering in near-black areas of the image
Worse viewing angles than its predecessor (though still good)
No support for the DTS:X audio codec (useful for Blu-ray owners)
There’s no doubt the LG G6 is outstanding in places. Thanks to the new 2nd-generation Tandem OLED panel it does something no other glossy-screen display on the market has managed so far: it suppresses reflections brilliantly while keeping perfect, untouched picture quality. Add record brightness and the panel’s unique characteristics, and the G6 can produce images that at times literally knock you off your feet. The excellent webOS and gamer-oriented features only reinforce the impression that this is a worthy successor to the G5. But that’s only one side of the coin, since expectations for a device in this class are as high as they get. During detailed testing we ran into an issue with digital image processing in near-black scenes. We’re talking about overly aggressive grain (dithering) and slight flickering of details in dark sequences. While during normal couch viewing this flaw isn’t dramatically noticeable and doesn’t negate the overall wow factor of the contrast, a trained eye will readily see that LG’s engineers stumbled at the final stage of panel tuning. When you buy a fairly expensive flagship product right now, you simply expect perfection out of the box.
Despite this obvious slip-up, the LG G6 is still at the absolute forefront of the market and one of the most interesting TVs of the year. It has a solid foundation to become the ultimate display. We firmly believe the manufacturer will quickly diagnose the issue and release an appropriate software update. If that happens, the competition won’t stand a chance. We promise to monitor the situation closely, and as soon as a patch appears we will verify how well it performs.
5.8/10
10/10
Local dimming function: No
Contrast:
Result
5,150:1
Result
5,550:1
Result
5,300:1
Result
5,800:1
Result
3,750:1
Result
∞:1
Result
∞:1
Result
∞:1
Result
∞:1
Result
∞:1
Halo effect and black detail visibility:
Check the visibility of bright lights on a dark background. Mini-LEDs often struggle with this. The photo does not compare black levels – that’s what the video below is for.
The video accurately shows differences in contrast and black levels between TVs, as well as potential issues: halo around bright objects or Mini-LED zone operation visible as brightness jumps.
Since the LG G6 is based on OLED technology, specifically the 2nd generation WOLED TANDEM matrix, we are talking about perfection in terms of blacks and contrast, which is confirmed by our lab measurements – in every test scenario, the television achieved an absolute infinity mark. The ability to control each pixel independently gives it a powerful advantage over any LCD panel on the market. This translates to a brilliant, plastic depth of image that immediately draws you into every possible viewing experience. This is clearly visible in the example of a dark, demanding scene with a helicopter from the movie Sicario 2. While traditional screens with local dimming (including Mini-LEDs) can generate annoying "halo" effects in such moments, lighten black bars in films, or lose details in shadows, the LG G6 handles it flawlessly. Black where it should be black remains pitch-black and perfectly separated from bright points.
*A small note: during this test, a fairly strong grain and flickering of the image stands out. However, we do not take it into account when evaluating the contrast itself and this part of the review – we will describe this specific problem in further detail in the section: "Smoothness of tonal transitions".
4.6/10
9.1/10
Luminance measurements in HDR:
Result
234 nit
Result
245 nit
Result
319 nit
Result
304 nit
Result
311 nit
Result
2387 nit
Result
2345 nit
Result
2418 nit
Result
2439 nit
Result
1844 nit
Scene from the movie “Pan” (about 2800 nits)
Scene from the movie “Billy Lynn” (about 1100 nits)
The photos show two HDR10 movies. 'Pan' is one of the brightest productions ever made, while 'Billy Lynn' (soldier) has brightness typical of streaming (Netflix, Prime, HBO MAX). Notice the intensity of effects and detail in whites.
Static HDR10
The photos present the visibility of white details in various HDR formats. They do not show brightness differences between TVs (these can be compared in the previous gallery).
Dynamic: Dolby Vision
Dynamic: Dolby Vision
The photos present the visibility of white details in various HDR formats. They do not show brightness differences between TVs (these can be compared in the previous gallery).
HDR luminance chart:
LG OLED G6 (G64LW, G66LS)
Hisense A6Q
Luminance of RGB colors
The LG G6 is currently one of the brightest OLEDs on the market. Its peak brightness reaches nearly 2500 nits, and best of all – this has a direct impact on real film scenes. The television flawlessly pulls out details in the bright parts of the image. And this is regardless of whether we are talking about very small points like stars in the sky or slightly larger elements on the screen. Naturally, with full-screen, uniformly white scenes, the brightness of the G6 decreases due to the panel's protection system (ABL). However, in real, varied film shots, this value still hovers around 2000 nits, which can be considered an outstanding result. The coverage of the color palette also deserves praise. The new 2nd generation Tandem OLED panel brought only a cosmetic change, but still an improvement. The DCI-P3 color gamut coverage reaches nearly 99.5%, while the ultra-wide BT.2020 is around 84%. These are very good results, although one must remember one thing: at extremely high brightness levels, the volume of colors will be lower than in QD-OLED panels from Samsung Display due to the use of a white sub-pixel (WOLED). However, in everyday content and most films, detecting this difference will be very difficult.
4.3/10
7.4/10
This gallery shows how colors change after professional TV calibration. If you notice the difference, we recommend ordering this service at SkalibrujTV.com.
Factory Mode
After calibration
This gallery shows how colors change after professional TV calibration. If you notice the difference, we recommend ordering this service at SkalibrujTV.com.
Factory Mode
After calibration
We tested the LG G6 in the best factory mode for color fidelity, which is FILMMAKER MODE. For our test unit, this mode was fairly well-tuned right out of the box. In SDR content, the only thing we could nitpick was the white balance, which leaned towards warmer tones. As a result, the image could sometimes appear slightly yellowed; however, overall, it wasn't a bothersome issue. The G6 performed a bit worse with HDR content. There, we noticed too much blue component in the white balance. This caused the image to take on cooler shades, resulting in quite noticeable errors. As can be seen in our ColorChecker chart, colors were indeed shifting towards these cooler registers. Nevertheless, for factory settings, the television displayed a completely decent level. However, we know that OLED screens – especially those from LG – respond wonderfully to professional calibration, which is why we immediately proceeded with it.
7.5/10
9.2/10
The photos show how movies look on the TV. Pay attention to black detail visibility, colors, and shadow tint.
The photos show how movies look on the TV. Pay attention to black detail visibility, colors, and shadow tint.
After conducting a professional calibration, we gained complete control over the panel, and we were able to adjust all parameters to nearly zero. We managed to perfectly tune the white balance, which made the factory-cool and warm tints disappear from the screen. The effects are clearly evident in the ColorChecker test – the average color reproduction errors dropped below the critical value of 1-2. And what does that mean? PERFECT colors, with no distortion whatsoever! However, from a reviewer's obligation, we must comment on how the LG G6 autonomously manipulates brightness, for which the EOTF curve is responsible. When we look at the standard synthetic graph, it may seem that the line is quite straight. The situation changes, however, when we turn on the measurement filter, which shows how the television interprets brightness in real, moving film scenes (EOTF in MOVIES). At that point, it becomes clear that some of the smallest fragments on the screen are slightly over-brightened by the algorithm. Of course, for the average viewer, such a deviation will be practically unnoticeable, but in the test of such an expensive screen, it is worth noting – especially since we are talking about a model that has huge aspirations to be the best television of the year.
7.6/10
5.5/10
These are selected scenes that show smooth tonal transitions from one color to another. If you see distinct banding, it’s the TV panel’s fault.
These are selected scenes that show smooth tonal transitions from one color to another. If you see distinct banding, it’s the TV panel’s fault.
These are selected scenes that show smooth tonal transitions from one color to another. If you see distinct banding, it’s the TV panel’s fault.
These are selected scenes that show smooth tonal transitions from one color to another. If you see distinct banding, it’s the TV panel’s fault.
Unfortunately, this is where we come to the least cheerful part of this review. If we were to evaluate solely the smoothness of the tonal transitions, the G6 would score high marks. The color blending is at a very good level, and at times it resembles what we know from Samsung's QD-OLED panels. This is great news because up until now, ugly, banding artifacts in dark shades have been the bane of WOLED panels. In this category, we would easily give it a strong 8.5 out of 10.
Note: Unfortunately, the final rating in this section drops significantly, and the culprit is very aggressive dithering. In dark scenes, the image literally “shivers,” and in areas close to black/dark gray, the television can be annoyingly flickering. We do not know exactly what this is due to, but looking at the tests from other reviewers around the world - everyone has encountered exactly the same problem. We hope that LG will fix this as soon as possible with an update. We know that LG can respond quickly to negative user feedback, which can already be read online. We will keep an eye on this issue and will inform you in case of improvement.
5/10
8.7/10
Smooth transition function
The match photo shows how the TV smooths weak tonal transitions in low-quality video.
Image scaling SD (576i)
The model photo shows how it handles upscaling of SD material.
No matter what one may say about the G6's problems with near-black signal, it must be fairly acknowledged that it handles highly compressed material and lower resolution content brilliantly. All unwanted, ugly tonal transitions are effectively reduced here by the “Smooth Gradation” feature. On the “Low” setting, the algorithm operates flawlessly – effectively masking the artifacts resulting from strong compression, without destroying the sharpness and details in the frame. Higher levels of this feature indeed smooth the image even more, but they start to blur the real texture elements of objects, which is why we recommend keeping this slider at a low level. As for the upscaling to 4K, the processor does an excellent job – edge sharpness and detail reconstruction are at the highest level, and in this respect, the G6 does not lag behind the world's best.
4.3/10
8.5/10
Blur (native resolution, maximum refresh rate):
Blur (BFI function enabled):
Image flickers in this mode
Blur (1080p@120Hz):
Blur (4K@165Hz):
The LG G6 is an OLED television, so in the category of motion fluidity, it traditionally deserves the highest ratings. The television supports a very high refresh rate of up to 165 Hz in 4K resolution, but most importantly – you will not see any signs of blurring on the screen. The response time of the panel is incredibly fast, ensuring that dynamic images remain perfectly sharp.
6.3/10
10/10
LG G6 is a true monster for gamers and one of the best-equipped TVs in this regard on the market. The manufacturer did not seek compromises and equipped this model with as many as four full HDMI 2.1 ports with a maximum bandwidth of 48 Gbps. This means that no matter which port you plug your PlayStation 5, Xbox Series X, or powerful PC into, you will extract the absolute maximum from them.
The TV supports a full suite of gaming technologies: from VRR (Variable Refresh Rate), through AMD FreeSync Premium Pro, to Nvidia G-Sync Compatible. Let's add to this the remarkably low, almost imperceptible input lag and a brilliantly functioning gamer panel (Game Optimizer), which allows you to continuously monitor the signal parameters. Gaming on this screen, with the perfect black of OLED and powerful refresh rates, is pure pleasure.
9.7/10
9.9/10
SDR
HDR
Dolby Vision
When it comes to signal delay, the results are remarkably low. For a standard 120 Hz signal, the Input Lag is just 5 ms. At 60 Hz, this value increases to 13 ms, which is still an excellent and completely imperceptible delay. The only thing we need to point out is the television's behavior after receiving the Dolby Vision Gaming signal. In this format, the Input Lag nearly doubles, reaching 13 ms for 120 Hz and 22 ms for 60 Hz. Despite this jump, we believe that these values in games are low enough that absolutely no one will feel any discomfort during gameplay.
5.6/10
8.7/10
The photo shows the legibility of small fonts. Ideally, lines should be the same thickness on both light and dark text, with minimal pixel gaps.
As we mentioned earlier, the LG G6 is an amazing screen for gamers but also for those using computers. With full support for Nvidia G-Sync and AMD FreeSync technology, as well as a high refresh rate of up to 165 Hz, this TV will work brilliantly as a giant gaming monitor. On the other hand, everyday office work with text looks a bit worse (although in our opinion still very well), which is a typical feature of every WOLED screen. Due to the specific arrangement of four subpixels (with an additional white subpixel), rather than three as in traditional computer monitors, system fonts can sometimes have an additional, in this case red glow around black or white letters. This is directly due to the new structure of the 2nd generation Tandem OLED matrix, which now operates in an RGWB arrangement (last year's first generation Tandem OLED used a BWRG arrangement). In our opinion, the sharpness of font edges has slightly worsened because of this, but it is definitely not something that will immediately catch your eye when occasionally working with documents or browsing the web.
3.1/10
7.2/10
As befits an OLED panel, the viewing angles on the LG G6 are really good. When viewed from the side, the TV does not drastically lose brightness or color saturation. In this regard, the picture quality is infinitely better than in any LCD TV – and this applies to both IPS panels and even more so to VA panels without special wide-angle coatings. In this matter, the only better screens on the market remain QD-OLED panels from Samsung Display, where the angles are simply perfect, as well as older WOLED panels with MLA (microlens) technology, which LG abandoned in this series two years ago. Unfortunately, we assess the viewing angles in this year's model as slightly worse than last year's. We noticed that the 2nd generation Tandem OLED panel has a tendency to take on more greenish hues when viewed at a steep angle, while last year's model maintained greater neutrality in this regard.
5/10
8.2/10
Panel brightness
LG OLED G6 (G64LW, G66LS): 857 cd/m2
Hisense A6Q: 341 cd/m2
The LG G6 will perform exceptionally well as a TV in a brightly lit room. Thanks to its powerful peak brightness, the television can easily cut through most external light sources. Best of all, the new generation of Tandem OLED panels has brought significant improvements in terms of reducing glare. Although the screen coating is still shiny (which helps maintain well-saturated colors even in difficult conditions), it effectively suppresses reflections. It does this significantly better than classic OLED screens with standard glossy coatings. We could confidently compare this level to that of shiny QD-OLED panels, but with one key advantage for LG. Unlike the competition's technology, the deep black in a bright living room remains intact in this model. There is no sign of grayness or purplish tints due to incoming light – the black in the G6 during the day is simply perfect, just like it is at night.
Subpixel Structure:
Panel uniformity and thermal imaging:
Hisense A6Q
LG OLED G6 (G64LW, G66LS)
7.8/10
8.5/10
The TV runs on the latest version of the webOS system. Although it is a closed platform, it supports absolutely all the key streaming applications on the market. You can also easily access useful wireless connectivity features, such as built-in Chromecast, AirPlay, or classic screen mirroring. However, the biggest distinguishing feature of LG's platform remains the brilliant Magic remote. Although it is quite compact and lacks a physical numeric keypad, it does something that competitors still can't replicate – it works like a wireless mouse. It is equipped with a gyroscope, allowing us to move an intuitive cursor across the screen, which drastically speeds up password entry and navigation through the menu. Additionally, LG has one of the best voice assistants for device control, and this combination with the Magic remote offers great possibilities for smoothly navigating the system. The only thing that can be quite annoying here is the intrusive ads and sponsored tiles that LG increasingly clutters the main screen of the system with. Nevertheless, the absence of Google TV is no drawback for the G6 – given the smooth operation of webOS, it can even be considered an advantage.
In terms of traditional television, the LG G6 also performs excellently and does not forget about traditional users. Despite the minimalist remote, there are plenty of useful solutions on board. The manufacturer has not given up on the PVR function, which allows for recording programs from built-in tuners directly to external USB storage or a hard drive. There is also an efficiently working TimeShift for pausing live television and the option to schedule recordings. These features may prove to be a perfect fit during the upcoming World Cup matches when games will be played late in the evening and we may not be able to watch them live. Of course, standard features are also included, such as the ability to connect wireless headphones via Bluetooth.
7.7/10
9.1/10
8.3/10
9.2/10
Supported photo formats:
Maximum photo resolution:
The inability to install an external media player (as is the case in Android-based systems) is actually not a problem for the LG G6. The factory-installed media player works great and seamlessly supports most audio, video, or image formats that we provided from our flash drive. However, during testing, we encountered some shortcomings – specifically, a rather strange lack of support for subtitles in the popular .txt format. However, we believe that this option will quickly be added to the G6 with the next software update.
6/10
8.4/10
Despite its very flat design, the LG G6 sounds surprisingly good. The manufacturer managed to squeeze quite nice speakers under the display, capable of producing a rather "spatial" sound – if you can even call the limited physical capabilities of the TV that 😉. The sound is clear, has decent dynamics, and is suitable for everyday viewing of news programs or series without any issues. The TV also easily supports the very popular Dolby Atmos surround sound codec.
Unfortunately, for the second year in a row, it lacks support for the DTS:X format. Regardless of what one might say, it has recently become quite unpopular in streaming services, but a top-of-the-line TV in terms of price and quality simply should not limit users in handling audio formats, in our opinion. Additionally, we have to criticize LG for somewhat downgrading the audio menu. We missed more advanced settings and predefined sound profiles, which were definitely more abundant in last year's model.
86dBC (Max)
75dBC
88dBC (Max)
75dBC