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LG B9 55 inch Class 4K Smart OLED TV w/AI ThinQ® (54.6'' Diag)
When you experience the revolutionary self-lit pixels of the LG OLED TV B9, you’ll discover perfect black and intense color found nowhere else.
Perfect black brings out the darkest details
Perfect black and infinite contrast bring out shadow detail in the darkest scenes. That's the power of 8.3 million individually lit pixels in LG OLED TVs.
Let Vivid Color Set the Scene
See everything you've been missing on the all-new LG OLED TV. It has a wide breadth of color that will truly take your breath away.
LG OLED TV - A PC Gamers Dream Come True
Experience PC gaming like never before on an LG OLED TV with NVIDIA G-SYNC® compatibility*. Only LG can provide the exceptional picture quality of perfect black and intense colors combined with smooth gameplay to take PC gaming to new heights.
*NVIDIA G-SYNC compatible with RTX 20 and GTX 16 graphics card series.
New Level of Gaming with Perfect Black
The perfect black canvas of an LG OLED TV provides an unparalleled experience in gaming on your favorite consoles. See extraordinary details and intense color even from a wide TV viewing angle. Immerse yourself with cinematic virtual 5.1 channel surround sound. And enjoy the latest innovations with HDMI that allows for responsive gameplay that gives you the edge.
Fast Response, Fluid Motion
Upgrade your game play with latest features. A 1ms response time* and low input lag allow for smoother, real-time action. Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM) supported on the latest HDMI standard, deliver the best graphics with minimal stutter at the fastest speeds for the best gaming experience.
*1ms response time is based on GtoG which means grey to grey.*The input lag data is based on internal testing standards and is subject to change according to the measurement environment or specific device conditions.
The engine that enhances everything
The innovative α7 Gen 2 Intelligent Processor is at the center of intelligent enhancement of images, action and color. A powerful processor empowered by AI at its core.
Introducing a more intelligent TV with LG ThinQ® AI
See how convenient life can be thanks to LG ThinQ® AI that listens, thinks and answers. And with the Google Assistant* and Alexa, you can control your entire connected home, and enjoy personalized entertainment. It's power to run your life — even better.
*Service limited to certain languages. Some features require 3rd party service subscriptions. Google is a trademark of Google LLC.
Blends in at any space
The sophisticated and sleek design of the TV seamlessly integrates with your home. LG OLED TV adds a final touch of uniqueness to your carefully curated interior.
Gallery Mode Adds a Touch of Class to Your Life
Gallery Mode brings world-famous travel attractions updated seasonally by TripAdvisor.
AirPlay lets you do it all. Watch. Listen. Share.
AirPlay 2 lets you effortlessly share movies -including Dolby Vision titles-, TV shows, photos and more on your LG AI TV right from your iPhone, iPad or Mac. You can even play music on every LG AI TV and other AirPlay 2-compatible speakers in your home at the same time - all in sync.
*Some features may require 3rd party service subscription.
Transform your TV into an entertainment powerhouse
Advanced image and sound technologies inspired by the cinema optimize picture and sound for a spectacular, more lifelike experience in every scene — it's ultravivid picture and powerful, moving audio that seems to flow all around you.*
*Dolby Vision is a trademark of Dolby Laboratories. Dolby, Dolby Atmos and the double-D symbol are registered trademarks of Dolby Laboratories.
*The actual product may differ from image shown.
LG OLED TVs and WiSA™
LG OLED TVs are WiSA Ready™ and seamlessly connect to WiSA Certified™ speakers using the Axiim LINK wireless USB audio transmitter so you can enjoy high-quality, immersive surround sound in minutes.*
4K Cinema HDR (Dolby Vision®, HDR10, HLG), HDR Dynamic Tone Mapping Pro
Object Depth Enhancer, Ultra Luminance Pro
Quad Step Noise Reduction, Frequency Based Sharpness Enhancer
Intense Color, Billion Rich Colors, Advanced Color Enhancer, True Color Accuracy
AI TV (ARTIFICIAL INTELLIGENCE)
LG ThinQ® AI
Google Home Compatible
Yes (Google Home device sold separately)
Amazon Alexa Compatible
Yes (Amazon Alexa device sold separately)
Intelligent Voice Recognition
Magic Remote Control
Yes (Point, Click, Scroll, Voice)
Universal Remote Control
Yes (Auto Device Detection)
LG Content Store (App Store)
Full Web Browser
40W (20W Woofer)
Yes (Separate Dongle Purchase Required)
Bluetooth Audio Playback
LG Sound Sync
Wi-Fi Certified 802.11ac
ATSC, Clear QAM
Smart Phone Connectivity
HDMI Input (HDCP 2.2)
4 (1 rear, 3 side)
HDMI Audio Return Channel (ARC)
eARC (HDMI 2)
USB Ports (v 2.0)
3 (2 rear, 1 side)
RF Connection Input (Antenna/Cable)
Composite Input (AV)
RS-232C Input (Mini Jack)
Digital Audio Output (Optical)
Power Supply (Voltage, Hz)
AC 120V, 50/60Hz
Standby Power Consumption
Annual Power Consumption
TV Dimensions with Stand (WxHxD)
48.4" x 29.2" x 9.7"
TV Dimensions without Stand (WxHxD)
48.4" x 27.7" x 1.8"
Packaging Dimensions (WxHxD)
56.9" x 31.9" x 8.1"
TV Weight with Stand
TV Weight without Stand
VESA Mounting (W x H)
300 x 200
Magic Remote Included
Remote Control Battery
Quick Start Guide
1 Year Parts & Labor
What people are saying
Rated 5 out of
Killer PictureSimply wonderful picture. This picture gives me goosebumps. The blacks, the whites are best I have seen and edges of things razer sharp. Excellent colors, wow. Not just on 4k sources either. All HD is great. Natural picture yet so impressive. Some scenes look almost 3D. I am enjoying watching TV to its fullest.
Date published: 2021-03-02
Rated 5 out of
Aunt Fran from
It’s all so clearIt has changed my enjoyment of watching TV so very much I sometimes feel like I’m at a theater everything is so much clearer it’s wonderful
Date published: 2021-02-24
Rated 4 out of
Could hardly be happierAfter years of searching for the perfect first TV purchase of my own, I'm incredibly satisfied with the b9. The magic remote alone is a gamechanger, though slightly annoying when the lightest nudge pops the cursor on screen, its easy incredibly useful for navigation. The OS is easy is navigate but missing some of my fav apps like crunchyroll and hbomax. This thing is shockingly thin. I'm still amazed by its profile. Sound is decent, better than any hand me down TVs I've had, but may look into a soundbar in the future to maximize the experience. The picture is incredible, hands down. I didn't know anime for example would look any different but it surely is. Of course content like Our Planet looks just about perfect without even adjusting complicated picture settings. If there's a better tv for the price, I wouldn't know.
Ask your questions. Share your answers. Please review the detailed product information and help guides in the Product Support section for this product prior to posting a question.
Why doesn’t Best Buy sell this TV any longer? Are there issues with it? I have this TV but would really like to know why Best Buy doesn’t sell it any longer.
Asked by: Trey11111
The LG B9 65 inch Class 4K Smart OLED TV w/AI ThinQ® (64.5'' Diag), Model # OLED65B9PUA is a 2019 model that was succeeded by the 2020 LG BX 65 inch Class 4K Smart OLED TV w/ AI ThinQ® (64.5'' Diag), Model # OLED65BXPUA. Best Buy would have sold the 2019 model until it sold out which is why it no longer sells the 2019 model just as the 2019 model succeeded the 2018 model which also would have been available until the 2018 model sold out. We manufacture new OLED TV models each year that come with the latest technology and advancements and a new webOS TV Operating System that supports the latest technologies...^IFV
Answered by: Ivanf
Date published: 2021-01-04
I ma planning to buy a generator for power outages. Will it harm the unit? What it its wattage requirement when turned on? 109.3W? How about the amperage when turned on? Thank you.
Asked by: Junojules
Please reach out to our support team on Twitter via @LGUSSupport or on Facebook at https://www.facebook.com/LGUSA. ^Daphane
Answered by: LG Electronics
Date published: 2021-01-02
I bought a TV a month ago in my country a 55 OLEDB9PSB LG OLED model and it gets very hot so much so that my room is small and it feels warm with the TV.
My question is if this model is like this or do I have a defective TV?
Asked by: Anonymous
The 55" OLEDB9PSB is not a model that was released in the U.S. and we do not have information for its specifications here in the U.S. Which country is your country where you purchased the TV from and what voltage does your country use? What is the power rating on the TV? Unfortunately, without knowing the specifications for the TV and its power rating, we cannot determine what the issue may be. The TV would have to be inspected by a qualified LG service technician or an authorized LG repair Service center, but that is where you run into issues because parts for TVs purchased outside of the U.S. are not available in the U.S. and the TV can only be serviced in its country of purchase. If the voltage for the TV is not the same as the voltage used in the U.S., that could be why the TV may be heating up to the point that it is heating up your room. The U.S. equivalent of your TV is the LG B9 55 inch Class 4K Smart OLED TV w/AI ThinQ® (54.6'' Diag), Model # OLED55B9PUA which has an operating temperature of 0 °C to 40 °C (32 °F to 104 °F) which shouldn't heat the room up to the extent that it feels warm unless the room is an especially small room with no ventilation...^IFV
Answered by: Ivanf
Date published: 2020-10-14
Will these be back in stock.or are they gone for good?
Asked by: Anonymous
The LG B9 55 inch Class 4K Smart OLED TV w/AI ThinQ® (54.6'' Diag), Model # OLED55B9PUA is a 2019 model that carried over into 2020. It was only available while stock lasted and once it sold out, that was it. They will not be any restocking for it since LG is not manufacturing it anymore...^IFV
Answered by: Ivanf
Date published: 2020-07-31
Does b9 wifi function support mimo2*2 or 3*3?
Asked by: cindya
It depends on if its 802.11n support it will .
Answered by: rodski51
Date published: 2020-09-03
Do you still have to have cable with the LG OLED 55" TV.
Asked by: RevMeg1
Using an indoor or outdoor antenna with the LG B9 55 inch Class 4K Smart OLED TV w/AI ThinQ® (54.6'' Diag), Model # OLED55B9PUA or connecting it to cable service is at your dicretion...^IFV
Answered by: Ivanf
Date published: 2020-07-03
Does LG make a low light commercial and high light residential version of the same model number tv
Asked by: Jay man
There is only one version of the LG B9 65 inch Class 4K Smart OLED TV w/AI ThinQ® (64.5'' Diag), Model # OLED65B9PUA. We do not have any other versions of the TV...^IFV
Answered by: Ivanf
Date published: 2020-08-06
Does the OLED55B9PUA support a 4K@120Hz signal?
Asked by: neospect
All the ports on the LG B9 55 inch Class 4K Smart OLED TV w/AI ThinQ® (54.6'' Diag), Model # OLED55B9PUA are HDMI 2.1 ports which can handle the maximum 48Gbps data rate which is required to handle uncompressed 12-bit 4K at 120Hz with RGB 4:4:4 chroma sampling...^IFV
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