Every year the most important OLED fight is not between the flagships. It happens one step below, where LG and Samsung put their mid range models head to head. For 2026 that means the LG C6 against the Samsung S90H. Both deliver perfect blacks, excellent colour and a full set of gaming features, and both are available in a wide range of sizes. Yet they make very different choices on screen finish, HDR formats and panel technology.

Reviewers who have tested them side by side generally agree that the picture quality gap is small. The decision usually comes down to your room, the content you watch and how much you want to spend. Here is everything you need to know.

Specs at a Glance

Feature LG C6 Samsung S90H
Panel type WOLED (42 to 65 inch); 77 and 83 inch sold as C6H with a newer Tandem panel WOLED in every size, according to reviews (Samsung has not officially confirmed panel types)
Screen finish Glossy Matte Glare Free
HDR formats Dolby Vision, HDR10, HLG HDR10+, HDR10, HLG
Max refresh rate Up to 165Hz Up to 165Hz
HDMI 2.1 ports 4 4
Smart platform webOS Tizen
65 inch UK price (September 2026) £2,099 £2,099

TV prices drop frequently through the year, especially around major shopping events, so check current pricing before buying.

Panel Technology: Closer Than You Might Think

This is the detail most buyers miss. In previous years Samsung’s S90 series mixed QD OLED and WOLED panels depending on size and region. For 2026, reviews and multiple reports indicate that the S90H uses WOLED panels in every size, the same type of panel technology LG uses. T3’s review describes the whole S90H range as using classic OLED panels, and TechRadar reports the S90H almost certainly uses the same mid range WOLED panel as the LG C6. Samsung itself has not officially confirmed which panel goes into which size, and you will still see some debate about this on deal forums.

On the LG side, the C6 uses WOLED from 42 to 65 inches, while the 77 and 83 inch versions are sold as the C6H, which uses a newer Tandem panel and is expected to be brighter and more colourful.

In practice this makes the two TVs more similar than ever at 42 to 65 inches. The real differences come down to the screen finish, HDR formats, software and price. If you are shopping for 77 or 83 inches, the LG C6H’s newer panel is worth considering.

Picture Quality

Both TVs produce stunning images. Perfect black levels, infinite contrast and excellent viewing angles are part of the OLED experience, and neither model disappoints. Side by side testing by reviewers found that the differences are subtle. The Samsung often shows slightly deeper blacks in a bright room thanks to its matte finish, while the LG sometimes delivers richer looking colours in certain scenes.

Because both TVs appear to use WOLED panels in their main sizes, colour performance is closer than in past years. T3 noted that the S90H covers just under 99% of DCI P3 in Filmmaker Mode and said they missed some of the extra colour punch of last year’s QD OLED S90F. Most people will be happy with either picture.

Brightness

Brightness results depend heavily on picture mode and how each outlet tests, so be careful comparing numbers from different reviews. TechRadar’s early lab tests of the LG C6 measured around 1,355 nits of peak HDR brightness on a 10% window, a clear step up from last year’s C5. T3 measured the S90H at around 2,450 nits in its brighter Standard mode, while noting Filmmaker Mode is noticeably dimmer for highlights. For the 77 and 83 inch sizes, LG’s C6H is expected to be brighter than the standard C6.

For typical viewing, both are bright enough for an impactful HDR experience. Brightness should not be the only reason you pick one over the other.

Screen Finish and Reflections

This is the clearest difference between the two TVs. The Samsung S90H uses a matte Glare Free finish that scatters reflections from windows and lamps. If your living room gets a lot of daylight or has lights opposite the screen, the S90H stays much easier to watch, and reviewers consistently name it the winner for bright rooms.

The matte finish does have a cost. Tom’s Guide, which tested both TVs, found that in average to well lit rooms the S90H’s matte screen noticeably lifts black levels, making blacks look more grey. T3 saw a similar but smaller effect in very bright rooms and felt the trade off was worth it.

The LG C6 keeps a glossy screen. In a dark or controlled room, many viewers prefer glossy because blacks look inkier and the image appears a little cleaner. In a bright room, though, you may see mirror like reflections during dark scenes. Think honestly about where the TV will go.

HDR Formats: Dolby Vision vs HDR10+

Each TV supports exactly the format the other lacks. The LG C6 supports Dolby Vision but not HDR10+. The Samsung S90H supports HDR10+ but not Dolby Vision.

Dolby Vision is more widely used on major streaming services and 4K Blu ray discs, so for many movie fans the LG has an advantage here. HDR10+ is supported by some services and is common on Samsung’s own ecosystem. Both TVs still look excellent with standard HDR10, but if you watch a lot of Dolby Vision content, the C6 is the safer choice.

Gaming Features

Gamers can relax, because both TVs share essentially the same gaming feature set. Each supports refresh rates up to 165Hz, four HDMI 2.1 ports, variable refresh rate and auto low latency mode. Input lag is very low on both, and motion looks crisp thanks to the near instant response time of OLED.

For PlayStation 5, Xbox Series X and gaming PCs, either TV is a superb choice. Your decision should be based on the other factors.

Smart Platform

LG uses webOS and Samsung uses Tizen. Both offer all the major streaming apps, voice assistant support and cloud gaming options. Some users prefer the simpler layout of webOS, while others like Samsung’s integration with SmartThings and Galaxy devices. This is mostly personal preference.

Price and Value

Prices on both TVs have already fallen a long way from launch. In the UK, both 65 inch models were listed at the same £2,099 on Amazon in September 2026, which makes the C6’s Dolby Vision support feel like a free extra. In the US, deal hunters spotted the 65 inch S90H for about $1,598 at Amazon in late August 2026. Prices change constantly with sales, so compare both on the day you buy. If one is noticeably cheaper, that alone can decide it.

Which One Should You Buy?

Buy the LG C6 if:

  • You watch mostly in a dark or dim room
  • You stream a lot of Dolby Vision content
  • You want the best value for money
  • You are shopping for 77 or 83 inch and want the brighter C6H

Buy the Samsung S90H if:

  • Your room is bright or has windows facing the screen
  • You want HDR10+ support for services like Prime Video
  • You already use Samsung phones and smart home devices
  • You find it on a good sale that closes the price gap

Final Verdict

The LG C6 and Samsung S90H are both excellent mid range OLED TVs, and picture quality alone will not decide this one. The LG C6 wins on value and Dolby Vision support, and it is the better pick for dedicated movie rooms. The Samsung S90H wins in bright living rooms thanks to its matte screen, as long as you accept slightly greyer blacks when the lights are on. Tom’s Guide, after testing both, recommends the C6 for most people and the S90H for rooms with strong light sources.

Pick based on your room and your content, and you will end up with a fantastic TV either way.

What People Are Saying

Beyond professional reviews, we looked at what TV enthusiasts and buyers are discussing on forums and deal communities. These are opinions and early impressions from real users, not lab tests, so treat them as extra context rather than hard facts.

Some Samsung fans are disappointed about the panel change

When reports surfaced that the S90H would use WOLED panels in every size, many enthusiasts on Reddit’s r/OLED_gaming community were unhappy, because previous S90 models offered QD OLED at some sizes for a lower price than Samsung’s flagships. One user said a WOLED S90H would be a “HARD pass” for them. (via TechRadar)

The matte screen divides opinion

The other big talking point is the Glare Free matte finish. Some forum users dislike it because it can make blacks look grey in a lit room, while others welcome it for living rooms with windows and lamps. This matches what professional reviewers found: it is excellent at killing reflections, but glossy screens keep inkier blacks.

Buyers are still confused about which panel they will get

Because Samsung does not officially confirm panel types, deal threads are full of conflicting claims. In a Slickdeals discussion about a 65 inch S90H deal, some users insisted the TV uses an LG WOLED panel, another expected QD OLED from 55 inches up, and one claimed the 77 inch model uses LG’s Tandem panel. None of these claims were confirmed by Samsung. (Slickdeals) If panel type matters to you, check a detailed review of the exact size you plan to buy.

Side by side, the differences can be small

In the AVForums LG C6 and C6H owners’ thread, one owner who compared a C6H with last year’s Samsung S90F found that in Filmmaker Mode the two images looked almost identical, and felt LG’s skin tones looked a little richer in that mode. That was the older S90F rather than the S90H, but it supports a common view on forums: once both TVs are set to accurate modes, everyday differences are subtle. (AVForums)

The common advice

Across these discussions, the most repeated advice lines up with our verdict: go for the LG C6 if you watch in a darker room or want Dolby Vision, and go for the Samsung S90H if reflections in a bright room are your biggest problem.