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Panel type: WRGB OLED Refresh rate: 165Hz Brand: LG Resolution: 3840x2160 System: WebOS Model year: 2026
This review is an English translation of the Polish original. Read the original on Wybierz.tv.
The LG C series has for years been one of the most popular choices for people looking for a good OLED without moving into flagship prices. You usually get most of the key features, excellent gaming performance and higher brightness than in the entry-level B series. In 2026 things got a bit more interesting, because not every LG C6 is the same. The 77- and 83-inch variants labelled Hyper (C6H in the USA) have been fitted with an improved Tandem OLED panel, very similar to the one LG used last year in its flagship G5 series. On paper this suggests higher brightness and stronger picture performance than the smaller C6 models, so we decided this variant deserved its own review. The question is whether in practice it really comes that close to last year’s flagship and whether it’s worth paying extra for the C6H.
8.4
Overall rating
The C6H is an even more interesting TV because the use of a Tandem OLED panel means the C series is moving into territory previously reserved for far more expensive models. You still get all the benefits of the regular C6, but the panel’s capabilities are on a completely different level. HDR illustrates this best. In many scenes we measured around 2000 nits, and at times even 2300 nits — results previously seen only in flagship TV ranges. On top of that there’s a wider BT.2020 gamut and, above all, much stronger colours at high brightness. In that respect it’s hard to call this a typical mid-range OLED. What’s more, the rest of the TV keeps up with the panel. You get excellent image processing, 165 Hz, a full suite of gaming features and the convenient webOS with the Magic Remote. If we judged the C6H solely on its capabilities and specs, it could easily sit alongside much more expensive top-tier TVs.
Unfortunately the magic fades a little when evening comes and you want to watch a film on it. Around black our C6H sample showed noticeable dithering and annoying flicker. It was most visible in challenging, very dark scenes and it’s the kind of fault that’s hard to ignore on an OLED. After all, one of the reasons you buy a panel like this is to enjoy perfect blacks during evening viewing. It’s a pity because otherwise the C6H is a genuinely terrific TV. Everything also suggests this isn’t a limitation of the panel itself but a firmware issue, similar to what we also saw in the LG G6. We therefore hope LG will fix it with an update, as it has done on some overseas markets. For now, this single issue prevents us from fully recommending the C6H. Until LG fixes it, the safer choice is the regular C6 or a rival OLED that doesn’t suffer from this near-black behaviour. If an update does resolve the problem, the Tandem-equipped C6 will immediately become one of the most interesting OLEDs of 2026.
Outstanding brightness, over 2,000 nits in HDR
Perfect blacks and OLED contrast
Excellent picture quality for HDR films and Dolby Vision
Very good image processing and upscaling
165 Hz panel and practically zero motion blur
Great gaming package: VRR, G-Sync, HGiG, Dolby Vision Gaming
Very low input lag, approx. 5 ms at 120 Hz
Wider colour gamut than other WOLED screens, 99% DCI-P3 and around 83% BT.2020
Intuitive, modern webOS
Convenient control with the Magic remote featuring a gyroscope
Strong dithering and image flicker in near-black areas
Various remote versions across C6 variants, so before buying it's hard to be sure which Magic Remote will be included
Average handling of reflections; in a very bright living room strong reflections may be noticeable
No DTS:X support. For that format you'll need an external AV receiver or player
Movies and series in UHD quality
8.4
Classic TV, YouTube
8.6
Sports broadcasts (TV and apps)
8.6
Gaming on console
9.5
TV as a computer monitor
8.6
Watching in bright light
7.6
Utility functions
8.4
Apps
9.1
Sound quality
7.0
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HDMI inputs: 0 x HDMI 2.0, 4 x HDMI 2.1 (48Gbps) Other inputs: IR (remote) Outputs: Toslink (Optical audio), eARC (HDMI), ARC (HDMI) Network Interfaces: Wi-Fi 2.4GHz, Wi-Fi 5GHz, Ethernet (LAN) 100Mbps
Build quality: Premium
Stand type: Central
Bezel color: Silver
Stand: Fixed
Flat design: No
Accessories: Stand
When it comes to appearance, the larger C6 with a Tandem OLED panel brings no big surprises. LG has stuck with virtually the same C-series design for several generations, and that’s hardly a flaw. The TV still looks very good, with very narrow bezels and a metal trim around the screen. Its colour may vary slightly depending on the specific variant and region. As you'd expect from an OLED, the top part of the screen is very slim. Lower down there is a much thicker section housing the electronics, so the C6 doesn't sit as flush against the wall as the G series, for example. On the back you'll again find LG's characteristic plastic finish with a stone- or marble-like texture. Its shade may also differ a little depending on the specific unit.
The TV rests on a central stand made from a combination of metal and plastic. It looks elegant, is stable and doesn't require a wide piece of furniture, which is particularly important for the large variant we tested. It's just a shame LG still hasn't done more to improve cable management. There are no decent covers or channels to route the cables, so after connecting a few devices they can be visible from the side of the TV. In summary, using a Tandem OLED panel hasn't changed the C6's construction. From the outside it's still the familiar C-series design, simple, slim and very well made.
Select size:
10/10
Result
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The Tandem OLED panel gives the C6 clearly greater capabilities in several areas of the picture, but when it comes to black levels there was nothing that needed changing. As with any OLED, individual pixels can be completely switched off, allowing the TV to achieve perfect black and virtually infinite contrast. So it doesn't matter whether bright subtitles on a black background, tiny stars or small light sources appear on the screen. You won't see the halo typical of LCDs around them, and transitions between bright and dark areas are very precise. In terms of pure black the Tandem OLED version has no advantage over the standard C6, because both panels can switch pixels off with single-pixel precision. Differences between them only show up in brightness and colour. However, if we look solely at contrast and black level, both variants offer the same reference performance.
NOTE: In the helicopter scene from the film Sicario 2 we noticed graininess and flicker in the darkest parts of the image. It looks like a software bug that LG should fix with an update. In the Tandem OLED version the effect is even more noticeable, and we observed similar behaviour in the flagship LG G6 as well.
Halo effect and black detail visibility:
8.8/10
Supported formats: HDR10, Dolby Vision, Dolby Vision IQ, HLG
Luminance measurements in HDR:
Result
2133 nit
Result
1900 nit
Result
2300 nit
Result
1964 nit
Result
1648 nit
And the biggest advantage of the Tandem OLED panel is most obvious with HDR. The C6H's brightness is simply very high and, in our measurements across most film scenes, hovered around 1,900 to 2,300 nits. That's the kind of level at which bright highlights, the sun or small light sources can look truly spectacular. The scene that impressed us most was the fifth scene from the film The Meg. It's particularly demanding for OLEDs because almost the entire screen is extremely bright. Even so, the C6H reached about 1,650 nits in that scene. By comparison, the standard C6 with a classic WOLED panel managed roughly 600 to 700 nits at the same point. So we're talking about more than double the brightness, and in places the difference approaches three times as much. And that's probably the best example of what Tandem OLED delivers. It's not just a higher score on a small test window. The C6H can maintain very high brightness even when much more of the screen is illuminated. That gives HDR a much wider dynamic range, and in this respect the C6H is considerably closer to flagship OLEDs than to typical mid-range models.
Tandem OLED also brings improvements in colour. DCI-P3 coverage remains virtually complete at around 99%, while in the much wider BT.2020 colour space we measured about 82–83%. That's roughly 7 percentage points more than the standard C6. In everyday viewing this won't be a difference you notice in every scene, because most films don't use such a wide palette. However, when very highly saturated colours appear, the C6H has noticeably greater capability, especially with reds. Reds benefit the most, becoming deeper and more saturated. It's still not at the level of the best QD-OLED panels or SQD TVs, but for a WOLED panel the result is really very good.
BT.2020 color gamut coverage and primary color luminance
| Data set | BT.2020 | P3 | R | G | B |
|---|---|---|---|---|---|
| Synthetic patterns | 82.6% | 99.3% | 59% | 65% | 74% |
| Film measurements | 82.2% | 99.2% | 82% | 85% | 87% |
BT.2020 and P3 – average color gamut coverage (percent of the target gamut).
R, G, B – average primary color luminance relative to target (percent).
Scene from the movie “Pan” (about 2800 nits)
Scene from the movie “Billy Lynn” (about 1100 nits)
With the C6H the situation is a bit different, because the extra capabilities of the Tandem OLED panel are most noticeable in truly demanding material. In most HDR films and series the difference compared with the regular C6 won't be large. If the content was mastered to around 1000 nits, both TVs already have enough brightness to show it with practically no major compromises. The C6H's advantage starts to show when you watch more demanding films, like Pan. Here the much higher brightness of the Tandem OLED panel lets it render strong light sources with greater intensity, and the whole picture simply has more impact. The C6H less often needs to resort to tone mapping, because it can display a much larger portion of the information encoded in the content directly.
An even bigger difference is visible in very bright scenes that cover a large part of the screen. This is exactly where regular OLEDs usually clamp brightness the most, whereas the C6H can maintain a lot of it. In those moments the Tandem OLED shows its biggest advantage and HDR can look truly impressive. So that doesn't mean every film on the C6H will look completely different to the regular C6. In most material both will cope very well. Only the most demanding scenes reveal what you're actually paying extra for with the Tandem OLED panel version.
HDR luminance chart:
With the Tandem OLED panel the situation looks very similar. The LG C6 supports all the major HDR formats: HDR10, HLG and Dolby Vision. It doesn't include HDR10+, but with Dolby Vision on board it's hard to see that as a major loss. Dolby Vision itself works very well and with more demanding material can show an advantage over standard HDR10. On our test scene you can see more detail in the brightest parts of the image, with snow and bright backgrounds retaining more detail and not washing out into a uniform white as much. In the case of the C6 with the Tandem OLED, however, the difference isn't huge, because the panel is already bright enough that it handles such scenes very well even in HDR10.
Static HDR10
Dynamic: Dolby Vision
7.8/10
Right out of the box the LG C6 is pretty well set up, especially if you select Filmmaker mode. In SDR content the white balance is good, although as brightness increases it starts to lack red slightly. This makes the picture a bit cooler, but not enough to be very noticeable during normal viewing. More is going on in the luminance response. Gamma is a bit low and instead of holding at 2.4 it sits closer to 2.1–2.2 across a large part of the range. In practice the C6 slightly brightens midtones. Shadows are therefore more readable, but the image loses a little depth compared with how it should look in a dark room.
In HDR the situation is a bit more interesting. The start of the grayscale looks very good, but from around 20–30% brightness the white balance starts to drift more strongly. As brightness increases red builds up and blue becomes noticeably lacking. In the brightest parts the difference is already significant and also affects the reproduction of some colours. The EOTF curve itself is handled quite well across most of the range. The C6 only has a tendency to slightly brighten the picture, which we've already seen in our film comparisons. The biggest deviation appears around the brightest sections where the TV starts to adapt the signal to the panel's capabilities.
So the factory Filmmaker setting in HDR is not perfect, but overall performs well. The biggest room for improvement is the white balance, especially at high brightness.
9.1/10
LG TVs have long responded very well to calibration, and the C6 is no exception. After adjustment, the white balance was set almost perfectly, and most colour errors fell to values below 3, often around 2. In practice this means very accurate colour reproduction in both SDR and HDR. An interesting detail only showed up with the HDR luminance response. On a classic EOTF chart everything looks almost perfect and at first glance it would be hard to fault. Only when we measured the TV’s behaviour using filters based on real film scenes did it emerge that the C6 has a slight tendency to artificially boost image brightness.
It isn’t a huge difference and many people may even see it as a positive, since HDR looks a bit more punchy. From the point of view of fidelity to the source material it’s not ideal, though — some scenes are simply a touch brighter than the filmmaker intended. Interestingly, this is quite atypical for LG. In previous generations, this brand’s TVs usually stuck very closely to the reference picture characteristics after calibration. With the C6 we’re still very close to the standard, but that subtle boost in brightness can indeed be noticed in movies and TV shows.
5/10
In terms of tonal transitions alone, the C6H performs really well. Gradients are smooth, colours don't break into obvious banding and, in both bright and dark scenes, it's hard to find major posterisation issues. For most content the image looks very clean in this respect.
Note: The situation is much worse, however, when it comes to dithering around black. In very dark parts of the image you can notice distinct flicker and graininess that, at close viewing distances, can be quite pronounced. On the Tandem OLED panel version the effect is noticeably stronger than on the regular C6. That's a shame, because the tonal transitions themselves are at a very high level here. It's precisely the behaviour of the image just above black that is the main reason we can't rate this category higher.
8.5/10
Smooth transition function
Image without overscan on the SD signal
Here the LG C6 has taken a really big step forward. The TV uses the same processor found in the flagship G6, and in terms of image processing the two models are very similar. That's a big plus, because in this area LG's processor this year performs excellently. The 'Smooth Gradation' function works especially well. With heavily compressed material it can effectively hide unsightly tonal banding and artefacts that often appear, for example, in lower-quality streaming. It's best left on the 'Low' setting. That way the improvement is clear, and the TV doesn't yet start to blur fine details. Higher levels smooth the picture more, but can begin to remove some of the natural texture of objects on screen. Upscaling itself also performs very well. Lower-resolution content is properly sharpened, edges look clean, and the processor quite effectively reconstructs fine details. In this respect the C6 is already really close to LG's top TVs and the differences compared with the G6 are small.
8.5/10
Maximum refresh rate of the panel: 165Hz
Film motion smoothing option: Yes
Blur reduction option: Yes
BFI function 60Hz: Yes, 60Hz (image flickers)
BFI function 120Hz: No
Brightness drop with BFI: 48%
The C6H with a Tandem OLED panel can also run at a refresh rate of up to 165 Hz. PC gamers will get the most out of that, of course, because with consoles, films or sport we're still looking at a maximum of 120 Hz. The panel itself performs excellently in motion. OLED pixels respond almost instantly, so even with fast-moving objects you don't see the usual trailing. The picture stays clean both when watching sport and in fast-paced games.
If you prioritise smoothness over motion clarity, TruMotion is available. LG lets you adjust two parameters separately. De-Judder mainly works with films and series shot at 24 fps and reduces their characteristic judder. De-Blur is intended for 50/60 fps content, so it's mainly useful when watching sport or TV.
Blur (native resolution, maximum refresh rate):
Blur (BFI function enabled):
Image flickers in this mode
Blur (4K@165Hz):
The C6H also has an OLED Motion feature, which works similarly to classic BFI. Its job is to improve motion clarity by blanking the image between consecutive frames. In practice, however, we don't see much reason to use it. The picture starts to flicker noticeably, brightness can fall significantly, and the actual motion improvement is small. In this case, it's definitely better to stick with the standard 120/165 Hz and, if desired, adjust TruMotion to suit your preferences.
10/10
The C6H offers virtually a full gaming feature set. On consoles you can easily use 4K at 120 Hz, while PC users can push the refresh rate up to 165 Hz. The TV also supports VRR from 40 to 165 Hz, ALLM and a correct implementation of HGiG. Dolby Vision is available in game mode too, which remains a big plus for Xbox owners. All the key info can be seen in the Game Bar, which provides quick access to VRR settings and the current signal parameters. The tandem OLED doesn’t change the actual feature set for gamers, but with such high panel brightness HDR games can look even more impressive. Functionally, the C6H is simply a very complete TV for consoles and PC.
9.9/10
The C6’s input lag is what you’d expect from a good gaming TV. At 120 Hz we measured about 5 ms, so controller input feels practically instantaneous. At 60 Hz the figure rises to roughly 14 ms, but that’s still a good result. Latency is a bit higher in Dolby Vision: about 14 ms at 120 Hz and roughly 22 ms at 60 Hz. In practice, if you’re playing on an Xbox, it’s unlikely to be something that will actually bother you.
| SDR | HDR | Dolby Vision |
|---|---|---|
| 1080p60: 14 ms | 2160p60: 14 ms | 2160p60 DV: 22 ms |
| 1080p120: 5 ms | 2160p120: 5 ms | 2160p120 DV: 14 ms |
| 2160p60: 14 ms | ||
| 2160p120: 5 ms |
8.6/10
Chroma 444 (max. resolution and refresh rate): Yes
Font clarity: Good
Readability of dark text and shapes: Very Good
Input lag in PC mode (4K, max. refresh rate): 5ms
Matrix subpixel arrangement: RWBG
Max refresh rate: 165Hz
G-Sync: Yes
The C6H with a Tandem OLED panel also works very well as a computer monitor. When working with text the most important thing is that the TV correctly handles 4:4:4 chroma subsampling, so small fonts, icons and UI elements are displayed clearly. The only thing you might notice from very close up are faint coloured fringes caused by the unusual subpixel layout. From a normal viewing distance on a screen this large it practically doesn’t matter, and in everyday use text is very readable. The C6H performs even better when the computer is used for gaming. The TV can run at refresh rates up to 165 Hz, supports G-Sync and VRR, and input lag at the maximum refresh rate is about 5 ms. Combined with the very fast response time of the OLED panel this makes for excellent conditions for PC gaming. There’s no smearing, motion is very smooth and controls respond almost instantly. In this respect the C6H can easily be treated not just as a TV but as a very large gaming monitor. You just need to remember that at 77 or 83 inches setting up your desk sensibly can be quite a challenge. 😉
7.3/10
Brightness drop at an angle of 45 degrees: 30%
The C6H with a Tandem OLED panel also offers very wide viewing angles. You can watch the TV well from far off to the side and the picture still maintains high contrast and saturated colours. As you'd expect from an OLED, it's one of those screens where you don't have to fight for the exact middle spot on the couch. Only TVs with QD-OLED panels from Samsung Display actually perform better in this regard. The C6H's slightly lower rating comes from our sample having a bit more tendency to shift towards a greenish tint when viewed at very extreme angles. It's a subtle difference we noticed mainly in direct side-by-side comparisons. During normal viewing, most people probably won't notice it.
7.6/10
Panel finish: Glare
Reflection suppression: Decent
Black levels during daytime: Very Good
The version with a Tandem OLED panel performs noticeably better during the day. The screen coating behaves very similarly, it’s glossy, suppresses reflections quite well and holds black levels with the lights on. A strong window or lamp will still be visible on the screen, but the image doesn’t lose much of its depth because of it. The biggest difference here is, of course, brightness. In typical SDR content the C6H reaches around 690 nits, which is clearly more than the standard C6. In a bright living room you can really notice it — the picture has more punch and cuts through the light entering the room much better.
Tandem OLED also handles scenes with lots of bright elements on screen better, although brightness still drops with near-full white. So they haven’t completely eliminated one of OLEDs’ typical traits, but the limitation is much less severe here. If the TV will often be used in a bright living room, this is one of the C6H’s advantages over the regular C6 that you’ll actually notice day to day.
Panel brightness
LG OLED C6H (TANDEM OLED): 690 cd/m2
8.4/10
System: WebOS
System performance: Very good
No matter which C6 version you get, the feature set stays the same. The heart of the TV is, of course, webOS, the system LG has been developing for many years. It runs fast, is well optimized, and above all offers access to virtually all popular apps. Netflix, Disney+, Prime Video, YouTube, Max and other streaming services — in this respect it's hard to find significant gaps. The system itself also provides a lot of extra options. There’s AirPlay, easy screen casting from a smartphone, smart home device control, and the ability to personalize the home screen. LG has been expanding webOS heavily for several generations, and at times the number of available tabs or recommendations can be a bit overwhelming, especially with background ads, but once you get used to it the system is convenient and, most importantly, runs smoothly.
The C6 also performs very well when you want to use it like a regular TV, not just a screen for Netflix. Over-the-air TV reception, the program guide and channel switching work smoothly and there’s little to complain about. LG still offers the ability to record programs to USB, so in terms of classic features the set is really well equipped. There are really only two things missing. The first is PiP, the ability to display two video sources at the same time. The second is a backlight for the remote, which would be handy for evening viewing. Apart from that, the C6 has basically everything you’d expect from a modern TV.
When buying the C6, it’s worth paying attention to the remote, because LG has created some confusion here. During our tests we had, among others, the C64 variant commonly found in large retail chains. The package included the new, much smaller Magic Remote Slim. It has fewer buttons and looks much more modern, but it still retains two of LG remotes’ most characteristic features: the scroll wheel and cursor control by moving the remote. The C6E we tested came with the older, larger Magic Remote. It works basically the same, but it has a traditional numeric keypad and many more physical buttons. It looks less modern, but some people, especially those used to classic remotes, may find it more convenient. So there’s no single answer as to which remote is better. The new one is smaller, simpler and more contemporary, while the older one gives faster access to a larger number of functions without navigating menus. It’s worth knowing that depending on the C6 designation, the box may contain either variant.
9.1/10
9.2/10
| Maximum photo resolution: | Supported photo formats: |
|---|---|
During our tests the TV handled virtually all of the popular video formats we put on a USB stick without any problems. There were no issues with high bitrates, subtitles or more demanding files, so it's hard to find anything to criticise in that respect. The only exception was material with a DTS audio track. That's not surprising, as the TV simply doesn't support that codec. Aside from that, the player is good enough that most users will easily get by without installing external apps or connecting an additional player.
7/10
0dB
Maximum volume
Supported codecs (TV speakers)
Dolby Digital Plus 7.1
Dolby True HD 7.1
Dolby Atmos in Dolby Digital Plus (JOC)
Dolby Atmos in Dolby True HD
DTS:X in DTS-HD MA
DTS-HD Master Audio
Sound Quality Test:
-0dBC (Max)
75dBC
Software version during testing: 43.11.73
Panel uniformity and thermal imaging:
Backlight Type: WRGB TANDEM OLED
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Journalist, reviewer, and columnist for the "ChooseTV" portal
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