LG OLED B4 vs LG OLED C7

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OLED B4 compared with OLED C7

	LGOLED B4	LGOLED C7
Overview
Released
Released	March 2024	2017
Display
Panel
Panel	OLED	OLED
Panel detail
Panel detail	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 Pro, α8 AI Super Upscaling 4K, AI Brightness Control, Dynamic Tone Mapping Pro and Filmmaker Mode	Colour Master Engine, Active Depth Enhancer, 4K upscaling and Active HDR processing
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; OLED Motion and HDMI 4K 120 fps input	Native 120Hz panel and interpolation to 120fps (RTINGS); 4K HDMI input is limited to 60Hz. No optional black-frame insertion (RTINGS).
Sizes
Sizes
Sizes	48, 55, 65, 77″	55, 65″
Largest size
Largest size	77″ (better)	65″
Gaming
HDMI ports
HDMI ports	4 (all HDMI 2.1 at 4K 120 Hz+) (better)	4 (0 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rate
Variable refresh rate	HDMI VRR, FreeSync Premium, G-Sync Compatible	None
Auto low latency mode
Auto low latency mode	Yes	–
HDMI detail
HDMI detail	Four inputs support 4K 120Hz, VRR, ALLM and QMS; eARC on HDMI 3	Four HDMI inputs with ARC and Simplink HDMI CEC; no full-bandwidth HDMI 2.1 or VRR (RTINGS)
Variable refresh range
Variable refresh range	LG specifies 40–120Hz	–
Game features
Game features	Game Optimiser and Dashboard, HGiG, AMD FreeSync Premium, NVIDIA G-SYNC Compatible and Dolby Vision gaming at 4K 120Hz	Game mode; no variable refresh rate (RTINGS)
Smart TV and sound
Smart TV platform
Smart TV platform	webOS	webOS
Processor
Processor	α8 AI Processor 4K	–
Speakers
Speakers	20 W, 2.0 channels	40 W, 2.2 channels (better)
Dolby Atmos
Dolby Atmos	Yes	Yes
eARC
eARC	Yes	–
Wi-Fi
Wi-Fi	Wi-Fi 5	Wi-Fi
Bluetooth
Bluetooth	5.1	–
Speaker detail
Speaker detail	Down-firing 2.0-channel speakers	Down-firing speakers with 20 W woofer output within the 40 W total
Audio features
Audio features	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	Magic Sound Tuning, Dolby Surround and DTS decoding. The launch UK sheet says Blu-ray Dolby Atmos requires a software update later in 2017; Expert Reviews distinguishes Dolby Digital Plus decoding from TrueHD.
Voice assistants
Voice assistants	Built-in Amazon Alexa and LG intelligent voice recognition; supported languages vary by country	Natural voice recognition through the supplied Magic Remote
Casting
Casting	Apple AirPlay 2, ThinQ remote app and Multi View	Miracast and WiDi supported
Software updates
Software updates	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.	webOS 3.5 with Freeview Play. LG's Australian launch scheduled late March 2017, and its June US release confirms C7 already available; an exact earliest sale month was not established, so release uses year precision.
TV tuners
TV tuners	–	UK DVB-T2/C/S2; digital recording and eight-day programme guide
USB
USB	Two USB 2.0 ports	Three USB ports, including one USB 3.0 port
Ethernet
Ethernet	Ethernet LAN port	Ethernet LAN port
Optical audio out
Optical audio out	One optical digital audio output	Optical digital audio output and headphone/line output on UK models
Design and power
Size
Size	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	Without stand (W × H × D): 55″ 1230 × 710 × 46.6 mm; 65″ 1453 × 833 × 46.6 mm
Stand
Stand	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.	Stiletto pedestal stand; with stand (W × H × D): 55″ 1230 × 750 × 217 mm; 65″ 1453 × 873 × 217 mm
VESA pattern
VESA pattern	300 × 200 mm across these UK sizes	300 × 200 mm for both sizes
Power use
Power use	Under 0.5 W standby; 100–240 V AC, 50–60Hz supply	0.3 W standby; 100–240 V AC, 50–60Hz supply
In the box
In the box	Magic Remote MR24, two AA batteries and attached power cable	Magic Remote, batteries, power cable and owner's manual