LG OLED B1 vs LG OLED B4

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OLED B1 compared with OLED B4

	LGOLED B1	LGOLED B4
Overview
Released
Released	2021	March 2024
Display
Panel
Panel	OLED	OLED
Panel detail
Panel detail	Self-lit OLED with pixel dimming and Ultra Luminance Pro	Self-lit 4K OLED with pixel dimming
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
Picture processing
Picture processing	AI Picture, AI upscaling, AI Brightness Control, dynamic tone mapping and Filmmaker Mode	AI Picture Pro, α8 AI Super Upscaling 4K, AI Brightness Control, Dynamic Tone Mapping Pro and Filmmaker Mode
Picture modes
Picture modes	–	Personalised Picture Wizard, Vivid, Standard, APS, Cinema, Sports, Game, Filmmaker and ISF Expert bright/dark room modes
Motion handling
Motion handling	Native 120Hz panel and OLED Motion Pro	Native 120Hz panel; OLED Motion and HDMI 4K 120 fps input
Sizes
Sizes
Sizes	55, 65, 77″	48, 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, FreeSync Premium, G-Sync Compatible
Auto low latency mode
Auto low latency mode	Yes	Yes
HDMI detail
HDMI detail	Four HDMI inputs; HIFI.DE and Les Numériques identify HDMI 3 and 4 as the two 4K 120Hz inputs, with HDMI 1 and 2 limited to HDMI 2.0. LG specifies eARC on HDMI 3.	Four inputs support 4K 120Hz, VRR, ALLM and QMS; eARC on HDMI 3
Variable refresh range
Variable refresh range	–	LG specifies 40–120Hz
Game features
Game features	Game Optimiser, HGiG, NVIDIA G-SYNC Compatible and AMD FreeSync support	Game Optimiser and Dashboard, HGiG, AMD FreeSync Premium, NVIDIA G-SYNC Compatible and Dolby Vision gaming at 4K 120Hz
Smart TV and sound
Smart TV platform
Smart TV platform	webOS	webOS
Processor
Processor	α7 Gen4 Processor 4K	α8 AI Processor 4K
Speakers
Speakers	40 W, 2.2 channels (better)	20 W, 2.0 channels
Dolby Atmos
Dolby Atmos	Yes	Yes
eARC
eARC	Yes	Yes
Wi-Fi
Wi-Fi	Wi-Fi 5 (802.11ac)	Wi-Fi 5
Bluetooth
Bluetooth	5.0	5.1
Speaker detail
Speaker detail	Down-firing 2.2-channel speakers; 20 W woofer output within the 40 W total	Down-firing 2.0-channel speakers
Audio features
Audio features	AI Sound, acoustic tuning, Clear Voice, Bluetooth Surround Ready and WiSA 2.1-channel support	α8 AI Sound Pro with virtual 9.1.2 up-mixing, acoustic tuning, Clear Voice Pro, Bluetooth Surround Ready and WiSA up to 2.1 channels
Voice assistants
Voice assistants	LG voice search, Google Assistant and Amazon Alexa	Built-in Amazon Alexa and LG intelligent voice recognition; supported languages vary by country
Casting
Casting	AirPlay 2, Apple HomeKit, screen sharing and ThinQ app	Apple AirPlay 2, ThinQ remote app and Multi View
Software updates
Software updates	webOS 6.0. LG's February 2021 global rollout announcement identifies B1 but leaves individual market launch dates for later announcements; the first on-sale month remains unconfirmed.	webOS 24; LG states four upgrades over five years with regional scheduling differences and security support through 31 December 2028. LG Australia's March 2024 launch notice confirms the range available now and lists 55/65-inch B4 March availability; release records that first confirmed series month, not a universal UK size-specific date.
TV tuners
TV tuners	UK DVB-T/T2, DVB-C and DVB-S2; CI+ 1.4, eight-day programme guide and USB recording/time shift	–
USB
USB	Three USB ports	Two USB 2.0 ports
Ethernet
Ethernet	Ethernet LAN port	Ethernet LAN port
Optical audio out
Optical audio out	Optical digital audio output and shared headphone/line output	One optical digital audio output
Design and power
Size
Size	Without stand (W × H × D): 55″ 1228 × 706 × 46.9 mm; 65″ 1449 × 830 × 46.9 mm; 77″ 1723 × 993 × 55 mm	Without 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
Stand
Stand	With stand (W × H × D; weight): 55″ 1228 × 744 × 246 mm, 19.9 kg; 65″ 1449 × 869 × 246 mm, 25 kg; 77″ 1723 × 1043 × 270 mm, 30 kg. Stand footprint 559 × 246 mm for 55/65″ and 749 × 270 mm for 77″.	With 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. Stand footprint: 48″ 933 × 235 mm; 55/65″ 1057 × 235 mm; 77″ 1403 × 319 mm.
VESA pattern
VESA pattern	55/65″ 300 × 200 mm; 77″ 400 × 200 mm	300 × 200 mm across these UK sizes
Power use
Power use	Under 0.5 W standby; 100–240 V AC, 50–60Hz supply	Under 0.5 W standby; 100–240 V AC, 50–60Hz supply
In the box
In the box	MR21 Magic Remote, batteries and detachable power cable	Magic Remote MR24, two AA batteries and attached power cable