LG OLED evo G3 vs Sony A90J

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

OLED evo G3 compared with A90J
LGOLED evo G3SonyA90J
Overview
ReleasedMarch 20232021
Display
PanelOLEDOLED
Panel detailSelf-lit OLED with pixel dimming and Brightness Booster Max; the brightness boost and anti-reflection treatment differ by size–
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Refresh rate120 Hz120 Hz
HDR formatsDolby Vision, HDR10, HLGHDR10, HLG, Dolby Vision
HDR extrasOLED Dynamic Tone Mapping Pro–
Peak brightnessLG states a brightness increase against its B3 of up to 70% on 55″, 65″ and 77″ G3, and 30% on 83″; these are relative maker claims, not measured luminance. Super Anti Reflective treatment applies to 55″, 65″ and 77″.–
Picture processingAI Picture Pro, AI Super Upscaling 4K, AI Genre Selection and AI Brightness ControlCognitive Processor XR, XR OLED Contrast Pro, Pixel Contrast Booster, XR HDR Remaster, XR Triluminos Pro, Dual Database Processing, XR Super Resolution and XR 4K Upscaling.
Picture modes–Custom, Cinema, IMAX Enhanced, Game, Graphics, Photo, Dolby Vision Bright/Dark and Netflix Calibrated.
Motion handlingLG UK labels the panel 100Hz native and explicitly supports 4K 120fps HFR and 4K 120Hz HDMI input; 120Hz records the highest supported native-resolution rate.XR Motion Clarity; 4K 120 Hz HDMI input.
Sizes
Sizes55, 65, 77, 83″55, 65, 83″
Largest size83″83″
Gaming
HDMI ports4 (all HDMI 2.1 at 4K 120 Hz+) (better)4 (2 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateHDMI VRR, FreeSync, G-Sync CompatibleHDMI VRR
Auto low latency modeYesYes
HDMI detail4 × HDMI with 4K 120Hz, VRR, ALLM and QMS on all ports; eARC on HDMI 2. QMS requires a compatible source.Four HDMI inputs: one side and three bottom. HDMI 3/4 support 4K 120 Hz, VRR and ALLM; eARC shares one of these inputs. HDCP 2.3. Current maker table confirms VRR after firmware; both launch-era reviews describe it as unavailable.
Game featuresHGiG, Game Optimiser, Game Dashboard, FreeSync Compatible and G-Sync CompatiblePlayStation 5 Auto HDR Tone Mapping and Auto Genre Picture Mode after software updates. Launch-era review reports about missing VRR and UK catch-up apps are historical findings, not current specification claims.
Smart TV and sound
Smart TV platformwebOSGoogle TV
Processorα9 AI Processor 4K Gen6Cognitive Processor XR
Speakers60 W, 4.2 channels–
Dolby AtmosYesYes
eARCYesYes
Wi-FiWi-Fi 6Wi-Fi 5 (802.11ac)
Bluetooth5.04.2
Speaker detail60 W, 4.2-channel down-firing speakersAcoustic Surface Audio+; UK 65-inch maker lists two actuators and two subwoofers, output 20 W + 20 W + 10 W + 10 W (60 W). No wattage is assigned to the other sizes without their full maker audio tables.
Audio featuresAI Sound Pro virtual 9.1.2 up-mix, Clear Voice Pro, AI Acoustic Tuning and Bluetooth Surround ReadyDolby Atmos and DTS Digital Surround, Voice Zoom 2, room/user-position calibration, 3D Surround Upscaling and Acoustic Center Sync with a compatible AV receiver or Sony soundbar.
Voice assistants–Built-in microphone with physical switch and premium backlit voice remote.
CastingApple AirPlay 2Chromecast built-in, Apple AirPlay and HomeKit.
TV tuners–Twin DVB-T/T2, DVB-C and DVB-S/S2 tuners; analogue and CI+.
Software updatesLaunch software webOS 23; UK maker lists security updates until 31 December 2027–
USB3 × USB 2.03 × USB: two side and one bottom; USB HDD recording supported.
Ethernet1 × Ethernet1 × bottom Ethernet LAN.
Optical audio out1 × optical1 × bottom digital audio output.
Design and power
SizeWithout stand (W × H × D): 55″ 1222 × 703 × 27.2 mm; 65″ 1441 × 826 × 24.3 mm; 77″ 1712 × 982 × 24.8 mm; 83″ 1847 × 1057 × 28.0 mmWithout stand, W × H × D: 55-inch 122.3 × 70.9 × 4.1 cm; 65-inch 144.4 × 83.3 × 4.1 cm; 83-inch 185.0 × 106.7 × 5.3 cm. Configuration weights exclude the stand; maker omits with-stand weights.
StandDesigned for wall mounting; tabletop stand sold separately55-inch standard foot width 128.2 cm, raised 115.0 cm; with-stand standard 128.2 × 70.9 × 31.7 cm, raised 122.3 × 77.6 × 31.7 cm. 65-inch standard foot width 150.2 cm, raised 136.5 cm; standard 150.2 × 83.4 × 31.7 cm, raised 144.4 × 90.2 × 31.7 cm. 83-inch standard/raised foot width 188.0 cm and narrow 70.0 cm; standard 188.0 × 107.2 × 42.8 cm, narrow 185.0 × 109.9 × 42.8 cm and raised 188.0 × 113.7 × 42.8 cm.
VESA pattern55″ 300 × 200 mm; 65″ and 77″ 300 × 300 mm; 83″ 400 × 400 mm55/65-inch 300 × 300 mm; 83-inch 400 × 400 mm.
Power useUnder 0.5 W standbyUK 65-inch standby 0.50 W; network standby 2.00 W over Wi-Fi/LAN or 0.50 W over HDMI-CEC.
Colours–Titanium Black bezel and aluminium edge stand.
In the boxMagic Remote, 2 AA batteries, IR blaster cable and attached power cableTable-top stand, premium backlit voice remote, batteries, power cord and setup instructions. Maker Japan records 55/65-inch sale on 1 May 2021 and 83-inch on 10 July; these regional dates do not establish the earliest worldwide month. Release remains 2021 after a bounded earlier-sale gap.

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