LG C6 vs Samsung S90H: Pick by Room and Picture

For a bright room, the 55-inch Samsung S90H is the stronger pick for reducing reflections; for a more consistent picture in the reported comparison, TechRadar’s reviewer preferred the LG C6 overall. The choice turns on what matters more in your room: the S90H’s matte screen or the C6’s performance in the scenes James Davidson watched.

What the 55-inch comparison found

TechRadar’s James Davidson compared 55-inch TVs using reference 4K Blu-ray scenes. In Filmmaker Mode, TechRadar measured higher HDR brightness on its S90H sample, but Davidson’s scene-by-scene impressions did not always follow those readings. Choose.tv’s separate 55-inch comparison lists the gaming features and HDR formats below.

Reflections and brightness are different questions

If windows or lamps reflect in your screen, the S90H’s matte OLED Glare Free finish is the more useful distinction: TechRadar found it suppressed reflections more effectively than the C6’s glossy screen in its bright test room.

The brightness readings tell a separate story from what a scene looks like. In a daytime desert scene from Lawrence of Arabia, Davidson thought the C6 looked brighter, even though the S90H had the higher measured peak and full-screen readings. That scene-specific impression is why a higher nit figure alone does not settle which picture will look brighter to you.

The C6 kept more shadow detail in the reported dark scenes

In The Batman, Davidson saw more shadow detail on the C6. He reported black crush on the S90H in some Filmmaker Mode scenes, where dark areas lost visible texture. Raising Shadow Detail from 0 to 5 and switching Tone Mapping from Static to Active helped, but did not remove all of the issue in those scenes.

Color preference also shifted with the film. Davidson favored the C6 in La La Land, while the S90H looked more vibrant to him in Speed Racer. His overall preference for the C6 was about consistency, not a claim that it looked better in every scene.

Gaming features and HDR formats

For gaming, Choose.tv lists four HDMI 2.1 inputs, VRR, ALLM, G-Sync and support for refresh rates up to 165 Hz on both 55-inch models. Its comparison lists Dolby Vision gaming for the LG and Game Motion Plus for the Samsung. The LG’s listed VRR range is 40–165 Hz; Samsung’s is 48–165 Hz.

If your games or video sources use Dolby Vision, the C6’s listed format support may matter more to you. The S90H supports HDR10+, while both TVs support HLG. Those are format differences, not a reason to assume that every game or stream will look better on one set.

The 77-inch comparison covers different variants

The 55-inch comparisons concern the LG C6 and Samsung S90H. Choose.tv’s separate 77-inch comparison covers the LG C6H and Samsung S90H. Because the size and LG model differ, those results are not a direct substitute for the 55-inch findings.

Who should choose each TV?

Choose the Samsung S90H if reflected light is a regular problem and you value the matte finish. In TechRadar’s test, it also had higher measured HDR brightness than the C6.

Choose the LG C6 if dark-scene detail and the reviewer’s more consistent overall picture matter more. Its listed Dolby Vision support may also suit sources that use that format.

The dated U.S. price comparison

In an article published October 31, 2026, TechRadar reported these prices for the 55-inch models:

That is a $300 difference, about 30% of the C6’s reported price. The S90H’s reflection control may justify the gap for a bright room; if reflections are not a concern, the C6’s lower reported price and Davidson’s overall picture preference make it the more compelling fit in this comparison.