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LG OLED B5 vs Sony A90J

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

Better figure, where one is clearly better

LGOLED B5SonyA90J
Overview
ReleasedMarch 20252021
Display
PanelOLEDOLED
Panel detailSelf-lit 4K OLED with pixel dimming–
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Refresh rate120 Hz120 Hz
HDR formatsDolby Vision, HDR10, HLGHDR10, HLG, Dolby Vision
Picture processingAI Picture Pro, α8 AI Super Upscaling 4K, AI Brightness Control, Dynamic Tone Mapping Pro and Filmmaker ModeCognitive 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 modesPersonalised Picture Wizard, Vivid, Standard, APS, Cinema, Sports, Game, Filmmaker and ISF Expert bright/dark room modesCustom, Cinema, IMAX Enhanced, Game, Graphics, Photo, Dolby Vision Bright/Dark and Netflix Calibrated.
Motion handlingNative 120Hz panel; OLED Motion and HDMI 4K 120 fps inputXR Motion Clarity; 4K 120 Hz HDMI input.
Sizes
Sizes48, 55, 65, 77, 83″55, 65, 83″
Largest size83″83″
Gaming
HDMI ports4 (all HDMI 2.1 at 4K 120 Hz+)4 (2 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateHDMI VRR, FreeSync Premium, G-Sync CompatibleHDMI VRR
Auto low latency modeYesYes
HDMI detailFour inputs support 4K 120Hz, VRR, ALLM and QMS; eARC on HDMI 3Four 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.
Variable refresh rangeLG specifies VRR up to 120Hz–
Game featuresGame Optimiser and Dashboard, HGiG, AMD FreeSync Premium, NVIDIA G-SYNC Compatible and Dolby Vision gaming at 4K 120HzPlayStation 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.
Cloud gamingXbox Cloud Gaming requires internet, Game Pass Ultimate and a compatible Bluetooth controller; available in supported regions including the UK. App and service availability varies by country.–
Smart TV and sound
Smart TV platformwebOSGoogle TV
Processorα8 AI Processor 4K Gen2Cognitive Processor XR
Speakers20 W, 2.0 channels–
Dolby AtmosYesYes
eARCYesYes
Wi-FiWi-Fi 6Wi-Fi 5 (802.11ac)
Bluetooth5.34.2
Speaker detailDown-firing 2.0-channel 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 featuresα8 AI Sound Pro with virtual 9.1.2 up-mixing, acoustic tuning, Clear Voice Pro, Bluetooth Surround Ready and WiSA up to 2.1 channelsDolby 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 assistantsLG intelligent voice recognition and Voice ID; AI Search, AI Chatbot, AI Concierge and picture/sound wizards; regional language and account restrictions applyBuilt-in microphone with physical switch and premium backlit voice remote.
CastingGoogle Cast, Apple AirPlay, Apple Home, ThinQ remote app and Multi ViewChromecast built-in, Apple AirPlay and HomeKit.
Software updateswebOS 25; webOS Re:New supports upgrades for up to five years, varying by model and region, with security support through 31 December 2029. LG Australia's March 19, 2025 launch confirms local availability and lists 48/55/65-inch B5 availability that day. Release records the first confirmed series month; LG's May 12 US release lists 55/65/77-inch models available now and the 83-inch model for preorder. TechRadar's July/August regional date does not override the earlier maker evidence.–
TV tunersDVB-T/T2, DVB-C and DVB-S/S2. LG specifies the CI slot is excluded for the UK and Ireland.Twin DVB-T/T2, DVB-C and DVB-S/S2 tuners; analogue and CI+.
USBTwo USB 2.0 ports3 × USB: two side and one bottom; USB HDD recording supported.
EthernetEthernet LAN port1 × bottom Ethernet LAN.
Optical audio outOne optical digital audio output1 × bottom digital audio output.
Design and power
SizeWithout stand (W × H × D): 48″ 1070 × 620 × 45.9 mm; 55″ 1228 × 708 × 45.9 mm; 65″ 1449 × 832 × 45.9 mm; 77″ 1719 × 989 × 50.9 mm; 83″ 1842 × 1055 × 52.9 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.
StandWith stand (W × H × D; weight): 48″ 1070 × 684 × 235 mm, 11.7 kg; 55″ 1228 × 772 × 235 mm, 14.5 kg; 65″ 1449 × 896 × 235 mm, 17.3 kg; 77″ 1719 × 1057 × 319 mm, 23.5 kg; 83″ 1842 × 1144/1084 × 300 mm, 27.7 kg (two published stand heights). Stand footprint: 48″ 933 × 235 mm; 55/65″ 1057 × 235 mm; 77″ 1403 × 319 mm; 83″ 1477 × 300 mm.55-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 pattern48/55/65/77″ 300 × 200 mm; 83″ 400 × 400 mm55/65-inch 300 × 300 mm; 83-inch 400 × 400 mm.
Power useUnder 0.5 W standby; 100–240 V AC, 50–60Hz supplyUK 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 MR25GA / MR25GB (UK and Italy) and attached power cable; TechRadar distinguishes the UK remote with AI button from the streamlined US remoteTable-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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