LG OLED B5 vs LG OLED BX

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

OLED B5 compared with OLED BX
LGOLED B5LGOLED BX
Overview
ReleasedMarch 20252020
Display
PanelOLEDOLED
Panel detailSelf-lit 4K OLED with pixel dimmingSelf-lit OLED with pixel dimming and Ultra Luminance Pro
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
Refresh rate120 Hz120 Hz
HDR formatsDolby Vision, HDR10, HLGDolby Vision, HDR10, HLG
Picture processingAI Picture Pro, α8 AI Super Upscaling 4K, AI Brightness Control, Dynamic Tone Mapping Pro and Filmmaker ModeAI Picture, face enhancement, AI Brightness, dynamic tone mapping, 4K upscaling and Filmmaker Mode
Picture modesPersonalised Picture Wizard, Vivid, Standard, APS, Cinema, Sports, Game, Filmmaker and ISF Expert bright/dark room modes–
Motion handlingNative 120Hz panel; OLED Motion and HDMI 4K 120 fps inputNative 120Hz OLED panel; OLED Motion Pro and 4K high-frame-rate playback. LG's 2020 rollout release states 120Hz for its OLED TVs, corroborated by the exact BX reviews.
Sizes
Sizes48, 55, 65, 77, 83″55, 65″
Largest size83″ (better)65″
Gaming
HDMI ports4 (all HDMI 2.1 at 4K 120 Hz+) (better)4 (2 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateHDMI VRR, FreeSync Premium, G-Sync CompatibleHDMI VRR, FreeSync, G-Sync Compatible
Auto low latency modeYesYes
HDMI detailFour inputs support 4K 120Hz, VRR, ALLM and QMS; eARC on HDMI 3Four HDMI inputs, two HDMI 2.1 and two HDMI 2.0; two rear and two side connectors. LG specifies eARC on rear HDMI 3. HIFI.DE identifies the two rear inputs as HDMI 2.1; TechRadar's claim of four HDMI 2.1 inputs conflicts with LG's specification.
Variable refresh rangeLG specifies VRR up to 120Hz–
Game featuresGame Optimiser and Dashboard, HGiG, AMD FreeSync Premium, NVIDIA G-SYNC Compatible and Dolby Vision gaming at 4K 120HzHGiG, NVIDIA G-SYNC Compatible, FreeSync and Instant Game Response with VRR and ALLM
Cloud gamingXbox Cloud Gaming requires internet, Game Pass Ultimate and a compatible Bluetooth controller; available in supported regions including the UK. App and service availability varies by country.–
Smart TV and sound
Smart TV platformwebOSwebOS
Processorα8 AI Processor 4K Gen2α7 Gen3 Processor 4K
Speakers20 W, 2.0 channels40 W, 2.2 channels (better)
Dolby AtmosYesYes
eARCYesYes
Wi-FiWi-Fi 6Wi-Fi 5 (802.11ac)
Bluetooth5.35.0
Speaker detailDown-firing 2.0-channel speakersDown-firing 2.2-channel speakers; 20 W woofer output and 10 W per channel within the 40 W total
Audio featuresα8 AI Sound Pro with virtual 9.1.2 up-mixing, acoustic tuning, Clear Voice Pro, Bluetooth Surround Ready and WiSA up to 2.1 channelsAI Sound, acoustic tuning, Clear Voice III, Bluetooth Surround Ready and WiSA speaker support
Voice assistantsLG intelligent voice recognition and Voice ID; AI Search, AI Chatbot, AI Concierge and picture/sound wizards; regional language and account restrictions applyLG voice search, Google Assistant and Amazon Alexa
CastingGoogle Cast, Apple AirPlay, Apple Home, ThinQ remote app and Multi ViewAirPlay support reported by HIFI.DE
Software updateswebOS 25; webOS Re:New supports upgrades for up to five years, varying by model and region, with security support through 31 December 2029. LG Australia's March 19, 2025 launch confirms local availability and lists 48/55/65-inch B5 availability that day. Release records the first confirmed series month; LG's May 12 US release lists 55/65/77-inch models available now and the 83-inch model for preorder. TechRadar's July/August regional date does not override the earlier maker evidence.webOS 5.0. LG's March 2020 US release scheduled BX availability for May, but that future schedule does not confirm actual first sale; the first on-sale month remains unconfirmed. TechRadar describes missing UK Freeview Play at launch.
TV tunersDVB-T/T2, DVB-C and DVB-S/S2. LG specifies the CI slot is excluded for the UK and Ireland.UK DVB-T/T2, DVB-C and DVB-S/S2; CI+ 1.4, eight-day programme guide and USB recording/time shift. The German review's twin-tuner specification is not applied to these UK models.
USBTwo USB 2.0 portsThree USB ports, one rear and two side
EthernetEthernet LAN portEthernet LAN port
Optical audio outOne optical digital audio outputOptical digital audio output and shared headphone/line output
Design and power
SizeWithout 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; 83″ 1842 × 1055 × 52.9 mmWithout stand (W × H × D): 55″ 1228 × 706 × 46.9 mm; 65″ 1449 × 830 × 46.9 mm
StandWith 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; 83″ 1842 × 1144/1084 × 300 mm, 27.7 kg (two published stand heights). Stand footprint: 48″ 933 × 235 mm; 55/65″ 1057 × 235 mm; 77″ 1403 × 319 mm; 83″ 1477 × 300 mm.With stand (W × H × D; weight): 55″ 1228 × 744 × 246 mm, 19.9 kg; 65″ 1449 × 869 × 246 mm, 25 kg. Stand width 559 mm for both sizes.
VESA pattern48/55/65/77″ 300 × 200 mm; 83″ 400 × 400 mm300 × 200 mm for both sizes
Power useUnder 0.5 W standby; 100–240 V AC, 50–60Hz supplyUnder 0.5 W standby; 100–240 V AC, 50–60Hz supply
In the boxMagic Remote MR25GA / MR25GB (UK and Italy) and attached power cable; TechRadar distinguishes the UK remote with AI button from the streamlined US remoteMR20 Magic Remote, two AA batteries and attached power cable

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