Unmatched Brightness Levels
The LG G6 OLED is a clear outlier in the 2026 OLED market. Independent tests by FlatPanelsHD show peak specular highlights reaching a jaw‑dropping 3,100 nits. For a larger image—about half the screen area—the G6 delivers more than 700 nits, while the standard SDR brightness tops out at 1,100 nits on its Vivid preset.
This level of brilliance is rare for OLED technology, which traditionally struggles with peak brightness. LG attributes the improvement to its Hyper Radiant Colour technology, a proprietary back‑lit enhancement that pushes color saturation and luminance without sacrificing the deep blacks OLEDs are known for.
Hyper Radiant Colour & AI Processing
Hyper Radiant Colour is paired with the Alpha 11 Gen 3 AI processor, LG’s latest image engine. The processor applies real‑time tone mapping and contrast adjustments, ensuring that bright scenes—think desert dunes or sunlit beaches—are rendered with vivid detail. In side‑by‑side tests, the G6 consistently outshines its sibling models, such as the C6, especially in high‑contrast HDR content.
“When watching scenes from the desert in Lawrence of Arabia, the white sands surrounding the well dazzle on the G6, but the C6 still has plenty of impact with bold, sharp detail.” — TechRadar review
While the data is compelling, LG’s official spec sheet claims a peak brightness of 3,200 nits. The discrepancy between the two figures remains uncertain; it could be a matter of measurement methodology or a small firmware tweak that has yet to be reflected in public documentation.
What It Lacks
Despite its impressive specs, the G6 is missing a feature that has become almost standard in premium TVs: Freeview Play support. For UK customers, this means the device cannot natively receive live digital TV broadcasts via the Freeview service. In contrast, many competitors, such as the Samsung S9 or Sony’s flagship models, bundle Freeview Play out of the box.
The omission is a deal‑breaker for viewers who rely on over‑the‑air broadcasts. It also affects the TV’s ability to serve as a hub for multiple streaming services without the need for external devices.

Another area where the G6 is slightly behind is the lack of HDR10+ support. While it does handle Dolby Vision content, HDR10+—the dynamic metadata format used by many recent Android TV devices—remains unimplemented. For power users who demand the absolute best HDR performance, this can be a stumbling block.
The Verdict
If you’re looking for the brightest OLED on the market and are willing to forego Freeview Play or HDR10+ in favor of unparalleled contrast and color fidelity, the LG G6 is a compelling choice. Its Hyper Radiant Colour technology, coupled with the Alpha 11 Gen 3 AI engine, delivers a visual experience that rivals—and in some metrics surpasses—many of its competitors.
However, for households that depend on free, over‑the‑air content or require the most comprehensive HDR support, a different model might be a better fit. LG’s upcoming lineup may address these gaps, but for now, the G6 stands out as a brighter OLED, yet one that still misses a key feature for a segment of the market.