LG OLED B5 vs LG OLED C9

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

Better figure, where one is clearly better

OLED B5 compared with OLED C9
LGOLED B5LGOLED C9
Overview
ReleasedMarch 20252019
Display
PanelOLEDOLED
Panel detailSelf-lit 4K OLED with pixel dimming–
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Refresh rate120 Hz120 Hz
HDR formatsDolby Vision, HDR10, HLGDolby Vision, HDR10, HLG
HDR extras–Advanced HDR by Technicolor also supported
Picture processingAI Picture Pro, α8 AI Super Upscaling 4K, AI Brightness Control, Dynamic Tone Mapping Pro and Filmmaker ModeAI Picture, AI Brightness, 4K Upscaler and dynamic tone mapping
Picture modesPersonalised Picture Wizard, Vivid, Standard, APS, Cinema, Sports, Game, Filmmaker and ISF Expert bright/dark room modes–
Motion handlingNative 120Hz panel; OLED Motion and HDMI 4K 120 fps inputNative 120Hz (Trusted Reviews). Original UK sheets retain the launch wording that 4K HFR via HDMI would be enabled by update.
Sizes
Sizes48, 55, 65, 77, 83″55, 65, 77″
Largest size83″ (better)77″
Gaming
HDMI ports4 (all HDMI 2.1 at 4K 120 Hz+)4 (all HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateHDMI VRR, FreeSync Premium, G-Sync CompatibleHDMI VRR, G-Sync Compatible
Auto low latency modeYesYes
HDMI detailFour inputs support 4K 120Hz, VRR, ALLM and QMS; eARC on HDMI 3Four HDMI 2.1 inputs, one rear and three side; eARC on HDMI 2
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 120HzHDMI VRR and ALLM. G-Sync Compatible was a post-launch update; LG's November 2019 rollout began in North America, followed by Europe and other regions, so firmware availability differed by country.
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 platformwebOSwebOS
Processorα8 AI Processor 4K Gen2α9 Gen2 Intelligent Processor
Speakers20 W, 2.0 channels40 W, 2.2 channels (better)
Dolby AtmosYesYes
eARCYesYes
Wi-FiWi-Fi 6Wi-Fi 5 (802.11ac)
Bluetooth5.35.0
Speaker detailDown-firing 2.0-channel speakers–
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, AI Sound, Clear Voice III and DTS decoding
Voice assistantsLG intelligent voice recognition and Voice ID; AI Search, AI Chatbot, AI Concierge and picture/sound wizards; regional language and account restrictions apply–
CastingGoogle Cast, Apple AirPlay, Apple Home, ThinQ remote app and Multi ViewApple AirPlay 2; introduced through a post-launch update
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.Launch webOS 4.5. Release year is conservative because LG's Australian launch table schedules 55″ and 65″ for March and 77″ for April, while the surrounding text says the range starts in April. The US schedule gives April for 55″ and 65″ and May for 77″; these schedules do not establish a single actual first shipping day.
TV tunersDVB-T/T2, DVB-C and DVB-S/S2. LG specifies the CI slot is excluded for the UK and Ireland.–
USBTwo USB 2.0 portsThree USB ports, two rear and one side
EthernetEthernet LAN portEthernet LAN port
Optical audio outOne optical digital audio outputOptical digital audio output; headphone output also fitted
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″ 1228 × 706 × 46.9 mm; 65″ 1449 × 830 × 46.9 mm; 77″ 1722 × 991 × 56 mm
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.Stand width: 55″ and 65″ 998 mm; 77″ 1189 mm
VESA pattern48/55/65/77″ 300 × 200 mm; 83″ 400 × 400 mm55″ and 65″: 300 × 200 mm; 77″: 400 × 200 mm
Power useUnder 0.5 W standby; 100–240 V AC, 50–60Hz supply–
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 remoteMR19 Magic Remote, two AA batteries and attached power cable

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