LG OLED B4 vs LG OLED EC9300

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OLED B4 compared with OLED EC9300

	LGOLED B4	LGOLED EC9300
Overview
Released
Released	March 2024	August 2014
Display
Panel
Panel	OLED	OLED
Panel detail
Panel detail	Self-lit 4K OLED with pixel dimming	Curved WRGB OLED with passive Cinema 3D
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	–
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 panel refresh is not established by the exact maker tables; unlimited MCI and Absolute Motion Clarity are marketing descriptions, not native Hz.
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, three side and one rear; ARC on the rear input and MHL support reported by AVForums
Input lag
Input lag	–	39 ms in PC mode and 49 ms in Game mode (HDTVTest); 41 ms and 52 ms respectively (AVForums), both on firmware 04.32.20
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	webOS
Processor
Processor	α8 AI Processor 4K	–
Speakers
Speakers	20 W, 2.0 channels	40 W (better)
Dolby Atmos
Dolby Atmos	Yes	–
eARC
eARC	Yes	–
Wi-Fi
Wi-Fi	Wi-Fi 5	Built-in Wi-Fi
Bluetooth
Bluetooth	5.1	–
Speaker detail
Speaker detail	Down-firing 2.0-channel speakers	40 W output. LG Czech specifies no subwoofer, while AVForums describes a 2.1-channel system; channel count is omitted because the sources conflict.
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	Dolby Digital and DTS decoding; LG wireless sound synchronisation
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	DLNA, MHL and LG Cloud; Miracast and WiDi reported by AVForums
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.	Launched with the original webOS Smart+ interface; the retained LG Czech page now says webOS 2.0. LG's syndicated August 27 2014 release states the US EC9300 was on sale that month, supporting August first-sale precision without treating the earlier promised August 24 day as independently confirmed delivery.
TV tuners
TV tuners	–	DVB-T2, DVB-C and DVB-S2, with CI slot; UK Freeview HD and satellite reception confirmed by AVForums. Analogue composite, component and SCART inputs are specified by LG.
USB
USB	Two USB 2.0 ports	Three side USB 2.0 inputs with hub support; no USB 3.0
Ethernet
Ethernet	Ethernet LAN port	Ethernet LAN port
Optical audio out
Optical audio out	One optical digital audio output	Optical digital audio and side headphone outputs
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): 1225 × 715 × 80 mm, from LG's exact EC930V Dutch specification
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): 1225 × 753 × 204 mm; 16.4 kg. The stand is detachable and does not swivel; wall mounting is supported, per AVForums.
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	106 W on-mode in the maker energy table; 0.3 W standby; Dutch maker supply 220–240 V, 50/60Hz
In the box
In the box	Magic Remote MR24, two AA batteries and attached power cable	Magic Remote and conventional remote; UK reviews identify two pairs of passive 3D glasses plus two clip-ons. LG's Dutch accessory table instead lists three pairs plus one clip-on, a regional package difference.