LG OLED B4 vs LG OLED EM9700

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OLED B4 compared with OLED EM9700

	LGOLED B4	LGOLED EM9700
Overview
Released
Released	March 2024	2013
Display
Panel
Panel	OLED	OLED
Panel detail
Panel detail	Self-lit 4K OLED with pixel dimming	Flat WRGB OLED with a white subpixel and Color Refiner
Resolution
Resolution	3840 × 2160 (4K) (better)	1920 × 1080 (Full HD)
Refresh rate
Refresh rate	120 Hz	–
HDR formats
HDR formats	Dolby Vision, HDR10, HLG	None
Picture processing
Picture processing	AI Picture Pro, α8 AI Super Upscaling 4K, AI Brightness Control, Dynamic Tone Mapping Pro and Filmmaker Mode	LG Color Refiner and WRGB four-colour pixel technology
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 refresh rate unconfirmed; the manual's supported input frequencies are not treated as the panel's native refresh.
Sizes
Sizes
Sizes	48, 55, 65, 77″	55″
Largest size
Largest size	77″ (better)	55″
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; ARC on HDMI 1 and MHL on HDMI 4, shown in the exact EM970V maker manual
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	–
Smart TV and sound
Smart TV platform
Smart TV platform	webOS	LG Smart TV
Processor
Processor	α8 AI Processor 4K	–
Speakers
Speakers	20 W, 2.0 channels	–
Dolby Atmos
Dolby Atmos	Yes	–
eARC
eARC	Yes	–
Wi-Fi
Wi-Fi	Wi-Fi 5	Wi-Fi 4 (802.11a/b/g/n)
Bluetooth
Bluetooth	5.1	3.0
Speaker detail
Speaker detail	Down-firing 2.0-channel speakers	–
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	–
Voice assistants
Voice assistants	Built-in Amazon Alexa and LG intelligent voice recognition; supported languages vary by country	–
Casting
Casting	Apple AirPlay 2, ThinQ remote app and Multi View	WiDi support described in the maker manual; Cinema 3D and Dual Play
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.	Pre-webOS LG Smart TV. First sale year retained because LG's January 2013 notice scheduled February deliveries while its July 2013 retrospective says Korean flat OLED sales began in January. What Hi-Fi? reported UK pre-orders in March with July deliveries planned, not confirmed.
TV tuners
TV tuners	–	DVB-T/T2, DVB-C and DVB-S/S2; analogue PAL/SECAM; CI module slot
USB
USB	Two USB 2.0 ports	Three USB inputs, labelled HDD IN, USB Apps and USB
Ethernet
Ethernet	Ethernet LAN port	LAN port
Optical audio out
Optical audio out	One optical digital audio output	Optical digital audio output and headphone output
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): 1230 × 714 × 4.45 mm, from the exact 55EM970V maker manual. LG's early launch notice describes 4 mm thickness and under 10 kg rather than the retail manual's measurements.
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.	With stand (W × H × D): 1230 × 800 × 304 mm; 21.3 kg. Manual values take precedence over early launch coverage.
VESA pattern
VESA pattern	300 × 200 mm across these UK sizes	–
Power use
Power use	Under 0.5 W standby; 100–240 V AC, 50–60Hz supply	Maker manual lists 250 W power consumption and 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 and conventional remote with batteries; maker manual identifies Cinema 3D and Dual Play glasses as separate-purchase accessories