LG OLED B3 vs LG OLED C9

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OLED B3 compared with OLED C9

	LGOLED B3	LGOLED C9
Overview
Released
Released	April 2023	2019
Display
Panel
Panel	OLED	OLED
Resolution
Resolution	3840 × 2160 (4K)	3840 × 2160 (4K)
Refresh rate
Refresh rate	120 Hz	120 Hz
HDR formats
HDR formats	Dolby Vision, HDR10, HLG	Dolby Vision, HDR10, HLG
HDR extras
HDR extras	–	Advanced HDR by Technicolor also supported
Picture processing
Picture processing	AI Picture Pro, AI Super Upscaling 4K, Dynamic Tone Mapping, AI Brightness Control and Filmmaker Mode	AI Picture, AI Brightness, 4K Upscaler and dynamic tone mapping
Motion handling
Motion handling	UK sheets label 100Hz native and explicitly support 4K 120fps HFR over HDMI.	Native 120Hz (Trusted Reviews). Original UK sheets retain the launch wording that 4K HFR via HDMI would be enabled by update.
Sizes
Sizes
Sizes	55, 65, 77″	55, 65, 77″
Largest size
Largest size	77″	77″
Gaming
HDMI ports
HDMI ports	4 (2 HDMI 2.1 at 4K 120 Hz+)	4 (all HDMI 2.1 at 4K 120 Hz+) (better)
Variable refresh rate
Variable refresh rate	HDMI VRR, FreeSync, G-Sync Compatible	HDMI VRR, G-Sync Compatible
Auto low latency mode
Auto low latency mode	Yes	Yes
HDMI detail
HDMI detail	Four HDMI inputs, with 4K 120Hz, VRR, ALLM and QMS on two; eARC on HDMI 3. RTINGS identifies the two 4K 120Hz inputs as HDMI 3 and 4.	Four HDMI 2.1 inputs, one rear and three side; eARC on HDMI 2
Game features
Game features	HGiG, Game Optimiser and Game Dashboard; FreeSync Compatible and G-Sync Compatible	HDMI 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.
Smart TV and sound
Smart TV platform
Smart TV platform	webOS	webOS
Processor
Processor	α7 AI Processor 4K Gen6	α9 Gen2 Intelligent Processor
Speakers
Speakers	20 W, 2.0 channels	40 W, 2.2 channels (better)
Dolby Atmos
Dolby Atmos	Yes	Yes
eARC
eARC	Yes	Yes
Wi-Fi
Wi-Fi	Wi-Fi 5	Wi-Fi 5 (802.11ac)
Bluetooth
Bluetooth	5.0	5.0
Speaker detail
Speaker detail	20 W, 2.0-channel down-firing speakers	–
Audio features
Audio features	Dolby Atmos, Clear Voice Pro and AI Sound Pro virtual 5.1.2 up-mix	Dolby Atmos, AI Sound, Clear Voice III and DTS decoding
Casting
Casting	Apple AirPlay 2	Apple AirPlay 2; introduced through a post-launch update
Software updates
Software updates	Launch webOS 23; UK maker lists security updates until 31 December 2027	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.
USB
USB	Two USB 2.0 inputs	Three USB ports, two rear and one side
Ethernet
Ethernet	One Ethernet input	Ethernet LAN port
Optical audio out
Optical audio out	One optical digital audio output	Optical digital audio output; headphone output also fitted
Design and power
Size
Size	Without stand (W × H × D): 55″ 1228 × 708 × 46.9 mm; 65″ 1449 × 832 × 46.9 mm; 77″ 1723 × 992 × 55.3 mm	Without stand (W × H × D): 55″ 1228 × 706 × 46.9 mm; 65″ 1449 × 830 × 46.9 mm; 77″ 1722 × 991 × 56 mm
Stand
Stand	Centre stand footprint: 55″ and 65″ 559 × 246 mm; 77″ 749 × 270 mm	Stand width: 55″ and 65″ 998 mm; 77″ 1189 mm
VESA pattern
VESA pattern	55″ and 65″ 300 × 200 mm; 77″ 400 × 200 mm	55″ and 65″: 300 × 200 mm; 77″: 400 × 200 mm
Power use
Power use	Under 0.5 W in standby	–
In the box
In the box	Magic Remote with two AA batteries and attached power cable	MR19 Magic Remote, two AA batteries and attached power cable