LG OLED evo C6 vs Sony X90J

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OLED evo C6 compared with X90J

	LGOLED evo C6	SonyX90J
Overview
Released
Released	March 2026	April 2021
Display
Panel
Panel	OLED	LED LCD
Panel detail
Panel detail	WOLED; 77″ and 83″ use a Primary RGB Tandem panel with Hyper Radiant Colour Tech	–
Resolution
Resolution	3840 × 2160 (4K)	3840 × 2160 (4K)
Refresh rate
Refresh rate	165 Hz (better)	120 Hz
HDR formats
HDR formats	Dolby Vision, HDR10, HLG	HDR10, HLG, Dolby Vision
HDR extras
HDR extras	Dolby Vision IQ	–
Screen finish
Screen finish	Glossy	–
Peak brightness
Peak brightness	1,251 nits in HDR on a 10% window, 65″ (Tom's Guide)	–
Picture processing
Picture processing	AI Picture Pro, AI HDR Remastering, Brightness Booster; 77″ and 83″ add Hyper Radiant Colour Tech (up to 3.2x peak brightness)	Cognitive Processor XR, XR Contrast Booster, XR HDR Remaster, XR Triluminos Pro, XR Smoothing, Dual Database Processing, XR Super Resolution and XR 4K Upscaling. Full-array LED backlight with local dimming; maker does not publish a zone count.
Picture modes
Picture modes	FILMMAKER MODE with Ambient Light Compensation, Creator Original mode	Custom, Cinema, IMAX Enhanced, Game, Graphics, Photo, Dolby Vision Bright/Dark and Netflix Calibrated.
Motion handling
Motion handling	–	XR Motion Clarity; UK accepts 4K 120 Hz HDMI input and maker Japan explicitly lists a native 120 Hz panel.
Sizes
Sizes
Sizes	42, 48, 55, 65, 77, 83″	50, 55, 65, 75″
Largest size
Largest size	83″ (better)	75″
Gaming
HDMI ports
HDMI ports	4 (all HDMI 2.1 at 4K 120 Hz+) (better)	4 (2 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rate
Variable refresh rate	HDMI VRR, G-Sync Compatible, FreeSync Premium	HDMI VRR
Auto low latency mode
Auto low latency mode	Yes	Yes
HDMI detail
HDMI detail	4K 120 Hz on all four ports; eARC, VRR, ALLM, QMS and QFT	Four side HDMI inputs. HDMI 3/4 support 4K 120 Hz, VRR and ALLM; eARC shares HDMI 3. HDCP 2.3. Current maker specification confirms VRR after firmware; original What Hi-Fi? review has no VRR.
Game features
Game features	Up to 4K 165 Hz; G-SYNC Compatible, FreeSync Premium, HGiG, VESA ClearMR 10000, 0.1 ms response; Game Dashboard and Optimiser; Bluetooth Ultra Low Latency controllers (under 2.5 ms)	PlayStation 5 Auto HDR Tone Mapping and Auto Genre Picture Mode after software updates. Both reviews explain that Dolby Vision and 4K 120 Hz require different HDMI modes; no low-latency Dolby Vision Game mode is claimed.
Cloud gaming
Cloud gaming	NVIDIA GeForce NOW (4K 120 Hz HDR)	–
Smart TV and sound
Smart TV platform
Smart TV platform	webOS	Google TV
Processor
Processor	alpha 11 AI Processor 4K Gen3 (Dual AI Engine)	Cognitive Processor XR
Dolby Atmos
Dolby Atmos	Yes	Yes
DTS:X
DTS:X	No	–
eARC
eARC	Yes	Yes
Wi-Fi
Wi-Fi	Wi-Fi 6	Wi-Fi 5 (802.11ac)
Bluetooth
Bluetooth	5.3	4.2
Speaker detail
Speaker detail	42″ 20 W, 2.0 ch; 48″ to 83″ 40 W, 2.2 ch	UK 50/65-inch tables: Acoustic Multi-Audio with two bass-reflex full-range speakers and two sound-positioning tweeters, X-Balanced Speaker, 10 W + 10 W (20 W). Other sizes’ unpublished/unread amplifier totals are not borrowed.
Audio features
Audio features	Virtual 11.1.2 ch, AI Sound, AI Object Remastering Ultra, Dolby Atmos	Dolby Atmos and DTS Digital Surround; Voice Zoom 2, room/user-position calibration and 3D Surround Upscaling.
Voice assistants
Voice assistants	–	Voice remote; UK maker says no built-in microphone. The UK X94J variant’s different feet and Rich Colour Enhancer identified by What Hi-Fi? are not assigned to X90J.
Casting
Casting	–	Chromecast built-in, Apple AirPlay and HomeKit. Google TV is confirmed by maker Japan and both exact reviews; UK support labels the underlying Android TV system.
TV tuners
TV tuners	–	UK twin DVB-T/T2, DVB-C and DVB-S/S2 tuners; analogue and CI+.
Software updates
Software updates	webOS 26; webOS Re:New Program upgrades for up to 5 years	–
USB
USB	2 × USB 2.0	2 × side USB according to current UK maker tables. What Hi-Fi? describes three; maker count is retained. USB HDD recording supported.
Ethernet
Ethernet	–	1 × side Ethernet LAN.
Optical audio out
Optical audio out	–	1 × side digital audio output.
Design and power
Size
Size	Without stand, 42″ 932 × 540 × 41.1 mm; 48″ 1071 × 620 × 46.9 mm; 55″ 1222 × 703 × 45.1 mm; 65″ 1441 × 826 × 45.1 mm; 77″ 1711 × 982 × 47.1 mm; 83″ 1842 × 1055 × 52.9 mm	Without stand, W × H × D: 50-inch 111.9 × 64.9 × 7.0 cm; 55-inch 123.3 × 71.1 × 7.2 cm; 65-inch 145.2 × 83.4 × 7.2 cm; 75-inch 167.5 × 96.2 × 7.3 cm. All configuration weights exclude stand; maker does not publish with-stand weights in these tables. TechRadar labels the 65-inch with-stand measurements as without stand; maker dimensions are retained.
Stand
Stand	Central pedestal stand; 65″ stands 880 mm tall on it, stand footprint 470 × 230 mm	50-inch foot width 66.5 cm, with stand 111.9 × 71.5 × 28.6 cm. UK 55/65/75-inch have standard and narrow positions: widths 106.1/45.8, 120.8/46.0 and 133.0/55.9 cm respectively. Their with-stand dimensions are 123.3 × 78.4 × 33.8, 145.2 × 90.5 × 33.8 and 167.5 × 104.0 × 41.0 cm.
VESA pattern
VESA pattern	48″, 55″ and 65″ 300 × 200 mm; 83″ 400 × 400 mm	50-inch 200 × 200 mm; 55/65/75-inch 300 × 300 mm.
Power use
Power use	–	UK 75-inch energy consumption 164 kWh per 1000 hours. UK 50/75-inch standby 0.50 W; network standby 2.00 W over Wi-Fi/LAN or 1.0 W over Bluetooth.
Colours
Colours	–	Black bezel and Titanium Black Slim Blade Stand.
In the box
In the box	–	Table-top stand, voice remote, batteries, power cord and instructions. Maker Japan records first 50-inch sale on 24 April 2021, 55/65-inch on 1 May and 75-inch on 22 May; April month precision is retained. Launch-review reports of missing UK apps are historical, not a claim about current software.
Warranty
Warranty	OLED Care+ covers the panel for 5 years	–