Club Benefits
After three long months of waiting since its announcement at CES 2026, we finally have an LG C6 OLED here at our labs in New York.
We spent some time earlier in the week putting the TV through its paces and we’ve collected our first bit of data on how LG’s mid-range OLED — and one of the best-selling TVs in the world — performs.
The results are… well, less exciting than we hoped compared to last year’s LG C5 OLED, but if you plan on upgrading from an older C1, C2 or C3 OLED, then we’ve got great news.
Article continues belowLG C6 OLED metrics at a glance
| Row 0 - Cell 0 | LG C6 |
SDR Brightness (10%, in nits) | 355 |
Delta-E (lower is better) | 1.53 |
Rec. 709 Gamut Coverage | 98.3% |
HDR Brightness (10%, in nits) | 1355 |
UHDA-P3 Gamut Coverage | 99.68% |
Rec. 2020 Gamut Coverage | 76.26% |
Input Lag (ms) | 12.9/9.1 (Boost) |
Before we compare it against some older models, let’s walk through our test results together so you know what each score represents.
SDR Brightness: As much as I wish every piece of content was mastered for high-dynamic range playback (HDR), we have around eight-plus decades of content that was shot in standard dynamic range (SDR). This brightness number tells us how bright the content will be in a 10% window. In full screen, we're looking at around 616 nits.
Delta-E: Delta, if you remember back to math class, just means "the difference between". Delta-E, in this case, measures the difference between the colors shown on screen and the colors we put out on a test pattern. The lower this number is, the more accurate a TV's colors are.
Rec.709, UHDA-P3, Rec2020 Color Gamut: We'll knock all three of these out next. Each of these tests measures color volume in increasingly larger areas of the visible color spectrum. The easiest one to cover is Rec709; UHDA-P3 is the standard color space for HDR; and Rec2020 is the widest color gamut we currently test for. Very few TVs reach 90% or higher.
HDR Brightness: Like SDR brightness but, you know, for HDR content. We report on HDR brightness in a 10% window to keep everything kosher, but in a 100% window the C6 OLED reaches 236 nits.
LG C6 Series vs C5 vs C4 vs C3
| Row 0 - Cell 0 | LG C6 | LG C5 | LG C4 | LG C3 |
SDR Brightness (10%, in nits) | 355 | 335 | 296 | 237 |
Delta-E (lower is better) | 1.53 | 1.25 | 1.82 | 1.39 |
Rec. 709 Gamut Coverage | 98.3% | 99.67% | 98.91% | 99.09% |
HDR Brightness (10%, in nits) | 1355 | 1165 | 1049 | 819 |
UHDA-P3 Gamut Coverage | 99.68% | 99.45% | 98.15% | 98.98% |
Rec. 2020 Gamut Coverage | 76.26% | 76.18% | 72.27% | 73.95% |
Input Lag (ms) | 12.9/9.1 (Boost) | 12.9/9.1 (Boost) | 12.9/9.2 (Boost) | 9.2 |
In isolation, the LG C6's numbers tell a pretty great story — it's bright in SDR, brighter in HDR, and genuinely covers the bases in terms of color.
In isolation, the LG C6's numbers tell a pretty great story — it's bright in SDR, brighter in HDR, and genuinely covers the bases in terms of color.
That's the good news.
The bad news is when you stack it against its previous two iterations, the LG C5 and LG C4 OLED. The C6 certainly has the edge in almost every category, but a 200- to 300-nit difference in brightness and a couple of percentage points in color really aren't going to tip the scales that much in the LG C6's favor.
In fact, if that were all the differences between the models, it'd be very easy to say that you should skip the C6 and buy a C5 or C4 OLED at a discount.
But t's never quite that easy when it comes to TVs. There are a number of tough-to-quantify variables like improvements to navigational speed, upscaling, motion handling and color banding that you can't discern by simply looking at a test result table. For those bits, you'll have to wait for a full review written by one of Tom's Guide's knowledgeable reviewers.
What I can say is that there is a wide enough gap between the LG C6 and the C3 OLED to warrant an upgrade if that's the TV you're still using. Realistically, 200 nits of brightness isn't anything to get excited about, but 500 nits? Well, that's a significant bump up. Rec2020 color coverage going from the low 70s to the mid 70s should also create a pretty obvious difference in real-world performance.
My advice? Wait for our full C6 OLED review
So what should you do if you're on the fence? What if you've got, say, the LG C4 OLED or a Samsung OLED, and you're not sure about upgrading just yet?
My advice is to wait for the full Tom's Guide C6 OLED review.
Our full reviews are where the rubber meets the road. We can contextualize these numbers a lot better when we have real movies and TV shows playing, and not test patterns.
If you can hold off another week before buying (I know it's tough!) then we'll have a full breakdown of all the pros and cons of the C6 sometime next week.
Follow Tom's Guide on Google News and add us as a preferred source to get our up-to-date news, analysis, and reviews in your feeds.
More from Tom's Guide
You must confirm your public display name before commenting
Please logout and then login again, you will then be prompted to enter your display name.
