5 year extended warranty on this TV. Terms apply.
55 inch LG OLED AI B4 4K Smart TV 2024
Which? Best Buy
"Precise and vibrant, with lustrous colours and finely balanced contrast"
TechRadar Recommends
OLED B4
A video shows the 10 Years World's No.1 OLED TV emblem appear gradually against a black backdrop with purple and blue fireworks.
*Screen images simulated.
Gold world’s number 1 OLED TV for 11 years emblem with a spotlight on a black background with gold sparkly stardust filling the sky above it.
*Omdia. 11 years of NO 1 regarding most sold units 2013-2023. This result is not an endorsement of LGE or its products. Visit https://www.omdia.com/ for more details.
The alpha 8 AI Processor on top of a motherboard, emitting orange bolts of light. An image of the OLED TV with the OLED Care menu is selected in the support menu that is up on the screen. A side view of the slimline design as it is placed flat against the wall in a modern living space.
The alpha 8 AI Processor chip redefines OLED with refinements that add transformative yet lifelike detail.
A video shows the 10 Years World's No.1 OLED TV emblem appear gradually against a black backdrop with purple and blue fireworks.
*Comparison is based on a conventional TV with alpha 5 AI Processor.
**Screen images simulated.
LG OLED in a modern living space showing a musical performance on screen. Blue circular waves depicting personalization surround the TV and space. An image of a woman with piercing blue eyes and a burnt orange top in a dark space. Red lines depicting AI refinements cover part of her face, which is bright and detailed, while the rest of the image looks dull. An image of an LG OLED TV as sound bubbles and waves emit from the screen and fill the space.
A video shows the 10 Years World's No.1 OLED TV emblem appear gradually against a black backdrop with purple and blue fireworks.
Select your favourite images, and AI Picture Wizard creates a picture tailored exactly to your unique taste from 85 million possibilities, then saves it to your profile.
Come day or night, Brightness Control detects the light in your space and balances the picture accordingly for crisp and clear visuals.
*Screen images simulated.
*Screen images simulated.
**Must be activated through the sound mode menu.
***Sound may vary according to the listening environment.
Scenes burst boldly into life where the darkest shadows and brightest lights intertwine.
A video shows an LG OLED TV in a modern city apartment. A grid overlay appears over the image like a scan of the space, and then blue soundwaves project from the screen, perfectly filling the room with sound.
The Milky Way fills the night sky above a canyon scene. Above the image, "gray is not black" is written in white block capitals against a black backdrop. The screen is split into two sides and marked "Others" and "LG OLED." The other side is noticeably dimmer and lower in contrast, whereas the LG OLED side is bright with high contrast. The LG OLED side also features Discomfort Glare Free and Perfect Black technology certifications.
*Screen Images simulated.
**’Others’ refers to it as a non-glossy OLED.
***LG OLED TV panels are certified Discomfort Glare Free by UL based on the Unified Glare Rating (UGR) evaluation method.
****Verification issued when UGR is less than 22 when watching TV between 70 lux and 300 lux.
*****LG OLED display only applied to C4, B4, and CS4 was verified by UL for perfect black measured to IDMS 11.5 Ring-light Reflection standards.
100% colour volume boosts rich hues, while 100% colour fidelity preserves shades without distortion.
A bustling city scene in the early evening with bold colors and contrast.
*LG OLED Panel is certified by Intertek for 100% Colour Fidelity measured to CIE DE2000 with 125 colour patterns.
**Display Colour Gamut Volume (CGV) is equivalent or exceeds the CGV of the DCI-P3 colour space as verified independently by Intertek.
OLED TV is standing majestically on the right side of the image and the background is shimmering like the night sky. As white lights are shining from the back of the TV. The Support menu is up on the screen, and the OLED Care menu is selected.
LG OLED B4 on the wall of a neutral living space showing a colourful photo of a sunset over the ocean.
LG OLED B4's stand on top of a marble surface. An image of a pale blue wave is on the screen. An image of LG OLED B4 on a stand in a minimalist space
*Bezel size differs by series and size.
Discover a size for every space and taste with a lineup ranging from 48" to 77".
Comparing LG OLED B4's varying sizes, showing 48", 55", 65", and 77".
webOS 24
Experience TV that's made for you with My Profile, AI Picture Wizard, AI Concierge, and Quick Cards.
*Supported menus and apps may vary by country and be different upon release.
**Keyword recommendations vary according to the app and time of day and are only provided in countries that support NLP in their native language.
***Applied to OLED/QNED/Nanocell/UHD model manufactured in the year of 2023 and after.
****A total of 4 upgrades will be provided in the 5 year period, and the schedule may vary depending on the region or country. The security update is supported until: 31/12/2028.
*****Screen images simulated.
Dolby Vision & FILMMAKER Mode
Transform movie night. Dolby Vision's ultra-vivid picture comes together with the support of FILMMAKER MODE™ to preserve the director's intention, optimising the picture quality while ensuring no distortion or over-processing.
A director in front of a control panel editing the movie "Killers of the Flower Moon" on an LG OLED TV. A quote by Martin Scorsese: "For home viewing, every film should be seen in filmmaker mode," overlays the image with the "Killers of the Flower Moon" logo, Apple TV+ logo, and a "coming soon" logo. Dolby Vision logo FILMMAKER MODE™ logo
Dolby Atmos
Hear action surround you with Dolby Atmos's unparalleled clarity, intricate detail, and spatial depth.
A cozy, dimly lit living space. A scene is being shown on TV where a couple is using an umbrella, and bright circle graphics surround the room. Dolby atoms logo in the bottom left corner.
*Screen images simulated.
Palme d'Or winner Sean Baker on his influences and inspirations.
In conversation with Netflix's Beef director Lee Sung Jin.
Where Ryusuke Hamaguchi crafts his award-winning movies.
Gear up for victory with AMD FreeSync Premium, G-SYNC compatibility, 120Hz Mode, and VRR.
A video shows an LG OLED TV in a modern city apartment. A grid overlay appears over the image like a scan of the space, and then blue soundwaves project from the screen, perfectly filling the room with sound.
*Certified for "Excellent Gaming Performance" and response times by Intertek.
**VRR ranges from 40Hz to 120Hz, and is a certified specification of HDMI 2.1.
Don't pause to use Game Optimizer and Game Dashboard.
Two gaming scenes. One shows an FPS game with the Game Dashboard appearing over the screen during gameplay. The other screen shows a dark, wintery scene with the Game Optimizer menu appearing over the game.
*Game Dashboard is activated only when both "Game Optimizer" and "Game Dashboard" is on.
**Screen images simulated.
Thousands of gaming universes right at your fingertips. Explore an epic library of cloud gaming titles and stream them immediately without ever wasting play time on downloads or updates.
The Boosteroid home screen showing "Trine 4: The Nightmare Price" and another image of GeForce NOW home screen showing five different game thumbnails.
*Supported partnerships may differ by country.
**GeForce NOW subscription may be required.
***Boosteroid subscription may be required.
Display Type
4K OLED
Refresh Rate
120Hz Native
Wide Colour Gamut
OLED Colour
Picture Processor
α8 AI Processor 4K
HDR (High Dynamic Range)
Dolby Vision / HDR10 / HLG
G-Sync Compatible (Nvidia)
Yes
FreeSync Compatible (AMD)
Yes
Audio Output
20W
Speaker System
2.0 channel
Dolby Atmos
Yes
TV Dimensions without Stand (WxHxD)
1228 x 708 x 45.9
TV Weight without Stand
14.3
Display Type
4K OLED
Display Resolution
4K Ultra HD (3,840 x 2,160)
Refresh Rate
120Hz Native
Wide Colour Gamut
OLED Colour
AI Genre Selection
Yes (SDR/HDR)
AI Brightness Control
Yes
Picture Processor
α8 AI Processor 4K
HDR (High Dynamic Range)
Dolby Vision / HDR10 / HLG
AI Upscaling
α8 AI Super Upscaling 4K
FILMMAKER MODE™
Yes
Dynamic Tone Mapping
Yes (Dynamic Tone Mapping Pro)
HFR (High Frame Rate)
4K 120 fps (HDMI)
Picture Mode
10 modes (Personalized Picture Wizard, Vivid, Standard, APS(Auto Power Save), Cinema, Sports, Game, Filmmaker, (ISF)Expert(Bright Room), (ISF)Expert(Dark Room))
Dimming Technology
Pixel Dimming
Motion
OLED Motion
FreeSync Compatible (AMD)
Yes
HGIG Mode
Yes
Game Optimiser
Yes (Game Dashboard)
ALLM (Auto Low Latency Mode)
Yes
VRR (Variable Refresh Rate)
Yes
G-Sync Compatible (Nvidia)
Yes
Operating System (OS)
webOS 24
ThinQ
Yes
USB Camera Compatible
Yes
Works with Apple Airplay2
Yes
Family Settings
Yes
Always Ready
Yes
Amazon Alexa
Yes (Built-in)
Full Web Browser
Yes
Intelligent Voice Recognition
Yes
LG Channels
Yes
Magic Remote Control
Built-In
Multi View
Yes
Smartphone Remote App
Yes (LG ThinQ)
The security update is supported until
31/12/2028
WiSA Ready
Yes (Up to 2.1 Channel)
LG Sound Sync
Yes
Sound Mode Share
Yes
Simultaneous Audio Output
Yes
Bluetooth Surround Ready
Yes (2 Way Playback)
Dolby Atmos
Yes
AI Sound
α8 AI Sound Pro (Virtual 9.1.2 Up-mix)
Clear Voice Pro
Yes (Auto Volume Leveling)
Audio Output
20W
AI Acoustic Tuning
Yes
Audio Codec
AC4, AC3(Dolby Digital), EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA, apt-X (Refer to manual)
Speaker Direction
Down Firing
Speaker System
2.0 channel
SPDIF (Optical Digital Audio Out)
1ea
Simplink (HDMI CEC)
Yes
HDMI Audio Return Channel
eARC (HDMI 3)
Bluetooth Support
Yes (v 5.1)
Ethernet Input
1ea
HDMI Input
4ea (supports 4K 120Hz, eARC, VRR, ALLM, QMS (4 port))
CI Slot
1ea
RF Input (Antenna/Cable)
x2
USB Input
x2 (v 2.0)
Wi-Fi
Yes (Wi-Fi 5)
High Contrast
Yes
Gray Scale
Yes
Invert Colors
Yes
TV Dimensions without Stand (WxHxD)
1228 x 708 x 45.9
Packaging Dimensions (WxHxD)
1360 x 810 x 172
Packaging Weight (kg)
19.5
TV Dimensions with Stand (WxHxD)
1228 x 772 x 235
TV Stand (WxD)
1057 x 235
TV Weight without Stand
14.3
TV Weight with Stand
14.5
VESA Mounting (WxH)
300 x 200
EAN Code (Barcode)
8806084677563
Power Supply (Voltage, Hz)
AC 100~240V 50-60Hz
Standby Power Consumption
Under 0.5W
Remote
Magic Remote MR24
Power Cable
Yes (TV Attached)
Remote Control Batteries
Yes (AA x 2)
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Repair request service conveniently online.
5 year extended warranty on this TV. Terms apply.
Add items to your MY LG wishlist
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