LG OLED C6 2026 Review: Best OLED TV for Most Buyers?

TL;DR - The LG C6 is a genuinely excellent OLED TV with the same exceptional picture quality LG has delivered in the C-series for four years running. The a9 Gen8 processor improves AI upscaling for streaming content, and 4x HDMI 2.1 makes it the right choice for multi-console gaming setups. Prices run EUR 1,499 (55-inch) to EUR 3,499 (77-inch) at launch. Don't upgrade from a C5. Do buy it if you're coming from an older OLED or a mid-range LCD.

What LG Changed in the C6

LG's C-series naming follows the year: C1 was 2021, C2 was 2022, and the C6 is 2026. Each year brings incremental updates to the same core OLED evo panel technology that LG has been refining since the C1.

The C6's meaningful changes over the C5:

a9 Gen8 AI Processor: LG's new chip improves object-based upscaling and noise reduction for streaming content. The improvement is visible on 1080p Netflix content upscaled to 4K -- faces and fine textures hold detail better than the Gen7 chip in the C5. Locally-mastered 4K content looks identical between the two.

webOS 26: LG's smart TV platform gets its annual refresh. The home screen is reorganised around a customisable grid rather than the horizontal ribbon of prior versions. App loading is faster. The My Content hub, which aggregates watchlists across streaming services, is genuinely useful now. LG has committed to 5 years of webOS updates for the C6, which is a real differentiator against Samsung's Tizen and Sony's Google TV at similar prices.

Brightness: The C6 reaches around 1,000 nits peak in HDR highlights on small windows (10% window). That's essentially identical to the C5 and C4. Don't believe any marketing that implies dramatic brightness improvements -- OLED brightness has plateaued, and LG is honest about this.

The panel itself -- OLED evo, self-emissive pixels, infinite contrast -- is unchanged. That's not a complaint. It's one of the best TV panels available and has been for three years.

Four HDMI 2.1 Ports: Why It Actually Matters

The C6 gives you four HDMI 2.1 ports, all capable of 4K/120Hz with VRR. This is not standard. Sony's A95L gives you two HDMI 2.1 ports. Samsung's S90D gives you two as well, with the other two capped at HDMI 2.0.

If you have a PS5, Xbox Series X, and a gaming PC simultaneously connected, the LG C6 handles all three at full bandwidth without a switch. In 2026, with gaming setups increasingly multi-platform, four HDMI 2.1 ports is a genuine purchasing reason, not a spec sheet checkbox.

Input lag in game mode measures around 1.3ms at 4K/120Hz. The C6 supports G-Sync Compatible (Nvidia), FreeSync Premium Pro (AMD), and VRR via HDMI 2.1 -- all three adaptive sync protocols work, which means any modern GPU or console operates in VRR mode automatically.

Picture Quality: What You're Actually Buying

OLED panels produce true black -- each pixel turns completely off. On the C6, a night sky scene shows stars against absolute darkness in a way no LCD, Mini-LED or otherwise, can match. Contrast ratio is effectively infinite. Local dimming zones don't exist because there's nothing to zone.

Where LG's OLED evo gains on cheaper OLEDs (older LG OLEDs, Sony's mid-range panels) is brightness headroom and long-term burn-in risk. The evo panel runs brighter than standard OLED while managing heat more effectively. LG's Pixel Refresh cycles handle long-term wear; I've seen C3 and C4 panels with thousands of hours showing no visible burn-in from normal mixed use.

The weakness of OLED -- all OLED, including the C6 -- is static image retention in bright rooms. If your living room gets significant direct sunlight during viewing hours, an OLED isn't the right TV. A Samsung QN90D Mini-LED will look better in those conditions.

Comparing the C6 to Alternatives

	LG C6 OLED	Samsung S90D OLED	Sony A80L OLED
Panel	OLED evo	QD-OLED	OLED evo
HDMI 2.1 ports	4	2	2
Smart OS	webOS 26	Tizen	Google TV
65-inch price (EUR)	~2,100	~2,000	~1,900
OS update commitment	5 years	4 years	3 years

The Samsung S90D uses QD-OLED -- a different panel technology that adds a quantum dot layer for wider colour volume and higher peak brightness. It's a better panel for colour-critical content and bright HDR highlights. The trade-off is two fewer HDMI 2.1 ports and Tizen's less refined smart TV experience.

The Sony A80L is last year's model at reduced prices. If you find it for EUR 300-400 less than the C6, it's a reasonable buy. Sony's processing is excellent. But you're getting an older processor and 2 HDMI 2.1 ports.

Sizes and Pricing (2026)

Size	Launch Price (EUR)
48-inch	~1,100
55-inch	~1,499
65-inch	~2,099
77-inch	~3,499
83-inch	~4,999

The 65-inch is the value sweet spot. The jump from 55 to 65 inches costs around EUR 600 for 44% more screen area. The jump from 65 to 77 inches costs EUR 1,400 for 40% more area -- a much worse ratio.

Who Should Buy the LG C6

Buy it if: you're replacing an LCD from 2020 or earlier, you're upgrading from a C2 or C3, or you have a multi-console gaming setup that needs four HDMI 2.1 ports.

Skip it if: you own a C4 or C5 in working condition. The improvement doesn't justify the cost. Or if your room gets significant direct sunlight -- pick a Samsung QN90D instead.

The C6 is what LG makes it every year: the most complete TV at its price range, with the minor tradeoff that you're buying near the ceiling of what OLED can currently do rather than a leap forward. That's been true since the C3, and the C6 doesn't change that pattern. It doesn't need to. If you want to see how it stacks up against MiniLED and budget OLED alternatives, the best smart TVs 2025 guide covers the full competitive field.