LG - 55" Class B4 Series OLED 4K UHD Smart webOS TV (2024)
Series
OLED 4K - B4Screen Size Class
55"More Buying Options
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Highlights
- Key Specs
- Display Type: OLED
- Resolution: 4K (2160p) (Refers to the number of pixels, both horizontally and vertically, used to capture video/images. The higher the resolution the finer the detail that can be seen.)
- Screen Size Class: 55 inches (The group size measurement of a screen. This differs from a screen size measured diagonally from corner to corner.)
- High Dynamic Range (HDR): true (An HDR-compatible 4K TV or other HDR-compatible product displays HDR video content when it's available from sources like 4K Ultra HD Blu-ray Discs and 4K streaming services.)
- High Dynamic Range Format: Dolby Vision, HDR 10, Hybrid Log-Gamma (HLG) (There are a few HDR formats that tell the TV or other HDR-compatible product how to best utilize its capabilities to display HDR content. HDR technology can support one or multiple formats, each with various benefits to picture quality.)
- OLED Technology: Standard OLED
- Refresh Rate: 120Hz (The number of frames per second the device can produce natively without enhancement. Higher rates help produce smooth, seamless pictures.)
- Specific Manufacturer Technologies: α8 AI Processor (This is technology that's specific to a TV brand (sometimes called proprietary technology). Here you'll see terms related to picture quality, brightness, processors and more.)
- Smart Platform: webOS (Just like a computer, a smart TV needs an operating system (also called a smart platform) in order to access the Internet, connect with entertainment apps, and play streaming content. Some common TV smart platforms are; Roku TV, Android TV, and Chromecast.)
- Featured Streaming Services: Netflix, Max, Disney+, YouTube, Prime Video, ESPN+, Apple TV+, Sling TV (Streaming services and other programs are available on this device. Keep in mind, there may be more services supported than just those shown here.)
- Number of HDMI Inputs (Total): 4
- TV Tuner Type: ATSC, Clear QAM
- Works With: Amazon Alexa, Google Home, Apple Home (Compatible with or able to be connected to other smart devices or applications.)
- Voice Assistant Built-in: Amazon Alexa (A digital assistant built into the device that uses voice commands to answer questions and control smart devices.)
- General
- Brand: LG
- Model Number: OLED55B4PUA
- Product Name: 55" Class B4 Series OLED 4K UHD Smart webOS TV (2024)
- Series: OLED 4K - B4 (Part of a group of the same product type with similar features.)
- Model Year: 2024
- Dimensions
- Product Height With Stand: 30.4 inches
- Product Width: 48.3 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
- Product Depth With Stand: 9.3 inches
- Product Height Without Stand: 27.9 inches
- Product Depth Without Stand: 1.8 inches
- Product Weight With Stand: 32 pounds
- Product Weight Without Stand: 31.5 pounds
- Stand Width: 41.6 inches (The horizontal measurement of the stand/base, or the distance from the outside of one leg to the outside of the opposite leg, as it is attached to the product.)
- Stand Depth: 9.3 inches
- Adjustable Stand Width: false (Whether the stand can adjust to have more than one measurement either between the legs or the base itself.)
- Display
- Display Type: OLED
- Resolution: 4K (2160p) (Refers to the number of pixels, both horizontally and vertically, used to capture video/images. The higher the resolution the finer the detail that can be seen.)
- Screen Size: 55.3 inches (Size of the screen, measured diagonally from corner to corner.)
- Screen Size Class: 55 inches (The group size measurement of a screen. This differs from a screen size measured diagonally from corner to corner.)
- High Dynamic Range (HDR): true (An HDR-compatible 4K TV or other HDR-compatible product displays HDR video content when it's available from sources like 4K Ultra HD Blu-ray Discs and 4K streaming services.)
- High Dynamic Range Format: Dolby Vision, HDR 10, Hybrid Log-Gamma (HLG) (There are a few HDR formats that tell the TV or other HDR-compatible product how to best utilize its capabilities to display HDR content. HDR technology can support one or multiple formats, each with various benefits to picture quality.)
- Picture Quality Enhancement Technology: Cinema HDR
- OLED Technology: Standard OLED
- Curved Screen: false
- Refresh Rate: 120Hz (The number of frames per second the device can produce natively without enhancement. Higher rates help produce smooth, seamless pictures.)
- Maximum Contrast Ratio (Native): Infinite (The difference between the brightest and the dimmest a screen panel can be. A higher contrast produces more in-depth images.)
- Synchronization Technology: G-SYNC Compatible (NVIDIA Adaptive Sync), FreeSync (AMD Adaptive Sync) (Generally, these technologies allow syncing between a computer/console game's frame rate and the device's refresh rate for a smoother display without tearing.)
- Closed Captioning: true (The text version of spoken audio displayed on the screen. Devices that can display closed captioning typically have the option to toggle the feature on or off.)
- Features
- Remote Control Type: Magic
- Specific Manufacturer Technologies: α8 AI Processor (This is technology that's specific to a TV brand (sometimes called proprietary technology). Here you'll see terms related to picture quality, brightness, processors and more.)
- Smart Capable: true (Smart, or smart-capable devices are able to connect directly to your home network in order to stream content from the Internet, run Internet-based apps, or connect to other smart devices.)
- Smart Platform: webOS (Just like a computer, a smart TV needs an operating system (also called a smart platform) in order to access the Internet, connect with entertainment apps, and play streaming content. Some common TV smart platforms are; Roku TV, Android TV, and Chromecast.)
- Featured Streaming Services: Netflix, Max, Disney+, YouTube, Prime Video, ESPN+, Apple TV+, Sling TV (Streaming services and other programs are available on this device. Keep in mind, there may be more services supported than just those shown here.)
- Screen Mirroring: true (Casts the screen of one device onto another wirelessly, using a common protocol (typically Bluetooth).)
- Screen Mirroring Technology: Apple AirPlay 2, Chromecast
- Content Sharing: Mobile to TV (The device is capable of connecting to another device in order to send or receive streaming content. Share content from your mobile device to your TV or vice versa.)
- Indoor Or Outdoor Use: Indoor (Indicates the appropriate environment product was designed to be used in.)
- Text-To-Speech: true (A system that converts language text into speech.)
- Video Description: true (Indicates whether the device features descriptive video service (DVS). This service provides narration of key elements in the program, such as actions, costumes, and scene changes, to help engage visually-impaired audiences.)
- V-Chip: false (Feature that blocks television programming if it has a content rating outside of the acceptable rating(s) configured by the user.)
- TV Tuner: Digital (The ATSC TV Tuner is a component built into conventional TV sets or other devices for receiving over-the-air broadcast TV without a cable/satellite box. Digital tuners may be purchased separately and connected to a device if it does not have one built in.)
- Connectivity
- Number of HDMI Inputs (Total): 4
- Display Connector(s): 4 x HDMI 2.1 (The number and type of connectors used to connect to an external display.)
- Network Connector(s): 1 x LAN
- Audio Only Outputs: 1 x Optical digital audio
- USB Ports: 2 x USB-A 2.0 (The number and type of USB ports the product has.)
- HDMI Audio Return Channel (ARC): eARC
- Wireless Connectivity: Wi-Fi, Bluetooth (The manner in which a device sends data to another device over a short distance without the use of wires or cables.)
- TV Tuner Type: ATSC, Clear QAM
- RF Antenna Input: true (This input is used to connect devices such as antennas or cable boxes to a TV via a coaxial cable.)
- Number Of USB Port(s) (Total): 2 (The total number of USB ports including all generations and versions.)
- Wireless Networking Standard: Wi-Fi 5 (The wireless networking standard used by the device. Each iteration of the standard developed by the Wi-Fi Alliance corresponds to an existing IEEE 802.11 protocol; for example, standard 802.11ac (or AC) is termed Wi-Fi 5. Refers specifically to the standard the device is designed to use, but ultimately determines product interoperability and backward compatibility including previous versions.)
- Bluetooth Version: 5.1 (The Bluetooth specification formalized by the Bluetooth Special Interest Group. All versions of the Bluetooth standard are backwards compatible with previous versions.)
- Headphone Jack: false (The device features an interface that allows for the connection of headphones.)
- Compatibility
- VESA Wall Mount Standard: 300mm x 200mm (VESA wall mount standards refer to the spacing of screw holes built into a TV in order to fit with standard TV wall mounts. These standards are implemented into most TVs and monitors.)
- Works With: Amazon Alexa, Google Home, Apple Home (Compatible with or able to be connected to other smart devices or applications.)
- Voice Assistant Built-in: Amazon Alexa (A digital assistant built into the device that uses voice commands to answer questions and control smart devices.)
- Audio
- Built-In Speakers: true
- Built-in Speaker Type: Downward firing (Backward, downward, and front-firing speakers direct sound into the room from those respective directions. A soundbar is typically long and rectangular, and designed to act as an all-in-one speaker with greater sound production than that of a TV alone. An acoustic surface is the result of small sound actuators embedded directly behind the screen, turning the entire screen's surface into a speaker.)
- Surround Sound Supported: Dolby Atmos (Surround sound systems use multiple audio channels and speakers to create an immersive sound experience for the listener. There are also various proprietary technologies that imitate this kind of sound via a device's built-in speakers or soundbar.)
- Number of Audio Channels: 2.0 (The number of discrete channels of sound output. This can be a single number or multiple numbers separated by decimal(s). The first number is the primary, horizontally directed audio channels. The number after the first decimal, if applicable, is the number of subwoofer outputs or channels. The number after the second decimal, if applicable, is the number of height or atmospheric channels designed to immerse the listener by producing overhead sound effects.)
- Power
- ENERGY STAR Certified: true (Devices carrying the ENERGY STAR service mark, such as computer products and peripherals, kitchen appliances, and other products, generally use 20% to 30% less energy than required by federal standards.)
- EPEAT Qualified: false (The Electronic Product Environmental Assessment Tool (EPEAT) was designed to provide an environmental assessment tool for purchasers. In order to qualify for EPEAT, a product must meet all 23 required criteria.)
- Estimated Annual Operating Cost: 31 United States dollars (Predicted cost of operating the product under average conditions for one year.)
- Estimated Annual Electricity Use: 195 kilowatt hours (Predicted amount of electricity needed to operate the product under average conditions for one year.)
- Rechargeable Battery (Remote Control): false
- Battery Size (Remote Control): AA (The battery size required for operation.)
- Number Of Batteries Required (Remote Control): 2
- Number of Batteries Included (Remote Control): 2
- Battery Chemistry (Remote Control): Alkaline
- Included
- Wall Mount Included: false
- Stand Included: true
- Warranty
- Warranty - Parts: 1 year limited
- Warranty - Labor: 1 year limited
- Box Dimension
- Height: 32.7 inches
- Width: 55.9 inches
- Depth: 6.8 inches
- CubicDimension: 12430 inches
- Other
- UPC: 195174077290
The LG OLED B4 is a premium watching experience that offers more than meets the eye. Entertainment extras like Dolby Vision, Dolby Atmos¹ and FILMMAKER MODE give you the big-picture experience straight from your couch. Enjoy outstanding picture powered by the α8 AI Processor, which uses AI to detect what you're watching and automatically improves the picture and sound quality of whatever you're watching. Search less and stream more, thanks to the next generation of AI technology from LG webOS 24. With Quick Cards, group your favorite apps into categories and even have instant access to over 300 free channels with LG Channels.² All LG OLED TVs have NVIDIA G-Sync, AMD FreeSync Premium and VRR to further improve gaming quality. And four HDMI 2.1 inputs allow you to plug in all the devices you need for the win. Whether you game on consoles or on the cloud,³ the LG Game Dashboard and Game Optimizer put all the control at your fingertips.
- 8.3 million self-lit pixels: With OLED’s over 8.3 million self-lit pixels see perfect black and luminous color.
- Alpha 8 AI Processor: Alpha 8 AI Processor detects what you're watching and automatically improves the picture and sound quality.
- Dolby Vision, Dolby Atmos & FILMMAKER MODE: Enjoy movie magic from home with Dolby Vision, Dolby Atmos¹ & FILMMAKER MODE.
- Gaming: Packed with gaming features like NVIDIA G-Sync.
- 4 HDMI 2.1 inputs: Enjoy content from multiple sources with four HDMI 2.1 inputs.
- webOS, LG Channels & webOS Re:New: With webOS & LG Channels, browse your favorite streaming apps & view 300+ free channels. Enjoy up to 5 years of software updates with webOS Re:New.²
- 8.3 million self-lit pixels: With OLED’s over 8.3 million self-lit pixels see perfect black and luminous color.
- Alpha 8 AI Processor: Alpha 8 AI Processor detects what you're watching and automatically improves the picture and sound quality.
- Dolby Vision, Dolby Atmos & FILMMAKER MODE: Enjoy movie magic from home with Dolby Vision, Dolby Atmos¹ & FILMMAKER MODE.
- Gaming: Packed with gaming features like NVIDIA G-Sync.
- 4 HDMI 2.1 inputs: Enjoy content from multiple sources with four HDMI 2.1 inputs.
- webOS, LG Channels & webOS Re:New: With webOS & LG Channels, browse your favorite streaming apps & view 300+ free channels. Enjoy up to 5 years of software updates with webOS Re:New.²
Whats Included
- 55" Class B4 Series OLED 4K UHD Smart webOS TV
- Table Top Stand
- Magic Remote (MR24)
- Remote Control Batteries (2)
- Power Cable (attached)
- Quick Start Guide
- 55" Class B4 Series OLED 4K UHD Smart webOS TV
- Table Top Stand
- Magic Remote (MR24)
- Remote Control Batteries (2)
- Power Cable (attached)
- Quick Start Guide
Product Manuals
Documents
- Energy_Guide_PDF
- Energy_Guide_PDF
Disclaimers
- ¹Dolby, Dolby Vision, Dolby Atmos, and the double-D symbol are registered trademarks of Dolby Laboratories Licensing Corporation. Manufactured under license from Dolby Laboratories. Confidential unpublished works. Copyright © 2012–2024 Dolby Laboratories. All rights reserved.
- ²Internet connection and subscriptions to streaming services are required; number of LG Channels subject to change. Software update will automatically download. Consumers who disable “auto-update” will receive a pop-up notification to accept or deny software update.
- Web-based services and content require high-speed Internet service. Some services may require a subscription.
- ¹Dolby, Dolby Vision, Dolby Atmos, and the double-D symbol are registered trademarks of Dolby Laboratories Licensing Corporation. Manufactured under license from Dolby Laboratories. Confidential unpublished works. Copyright © 2012–2024 Dolby Laboratories. All rights reserved.
- ²Internet connection and subscriptions to streaming services are required; number of LG Channels subject to change. Software update will automatically download. Consumers who disable “auto-update” will receive a pop-up notification to accept or deny software update.
- Web-based services and content require high-speed Internet service. Some services may require a subscription.
Q: Does this TV include any AI features?
A: Yes, this TV features the Alpha 8 AI Processor that automatically enhances picture and sound quality based on the content being watched.
Q: What comes included with this LG TV?
A: This LG TV includes a stand and a remote control.
Q: Does this TV support screen mirroring?
A: Yes, this TV supports screen mirroring with Apple AirPlay 2 technology.
Q: What kind of sound technology does this TV support?
A: This LG TV comes with Dolby Atmos, which provides an immersive sound experience.
Q: What is the refresh rate of this LG TV?
A: The refresh rate of this LG TV is 120Hz.
Q: How many HDMI inputs does this LG TV have?
A: This LG TV is equipped with four HDMI 2.1 inputs.
Q: Can you recommend a sound bar for the Lg 55 B4 OLED tv
A: Hello there, Rick. For your LG OLED55B4PUA TV, we recommend these compatible soundbars to enhance your audio experience: 1. LG S70TY Soundbar - https://www.lg.com/us/sound-bars/lg-s70ty-sound-bar#pdp_specs Features: Dolby Atmos, up-firing center channel for immersive sound, wireless active subwoofer, and WOW Orchestra soundstage enhancement when used with LG TVs. Compatibility: Specifically designed to pair with LG QNED TVs, but it also works well with the OLED B4 for an enhanced sound experience. Additional Benefits: Comes with 7 speakers and supports 3D spatial sound, including optional rear surround speakers (SPT8-S speaker kit). 2. LG S90TR Soundbar - https://www.lg.com/us/sound-bars/lg-s90tr-sound-bar#pdp_specs Features: Immersive Dolby Atmos with triple up-firing speakers, 13 speakers for 3D spatial sound, and wireless rear speakers. Compatibility: Pairs perfectly with the OLED B4, C4, and G4 series for maximum sound performance. Additional Benefits: Enhanced with 24-bit upsampling, Google Assistant, and Apple AirPlay 2 support. 3. LG S80TR Soundbar - https://www.lg.com/us/sound-bars/lg-s80tr-sound-bar#pdp_specs Features: Dolby Atmos with up-firing speakers, 11 speakers for a surround sound experience, and wireless rear speakers. Compatibility: Designed for LG OLED TVs, this soundbar will complement the OLED55B4PUA with immersive sound. Additional Benefits: Features 24-bit upsampling, Amazon Alexa support, and dynamic sound modes like Bass Blast, Cinema, and Clear Voice. These soundbars will provide excellent audio quality to match your OLED TV's stunning visuals, supporting features like Dolby Atmos and AI Sound Pro for an immersive experience. Let me know if you need further assistance! —Renzo
Q: What is the difference between the 55" C4 and the 55" B4 LG OLED TV's? (besides the price)
A: Hi there, Vincent. Thank you for reaching out to us with your question. We understand you're comparing the LG OLED55B4PUA and the 55" C4 models, and we'd love to help clarify the differences beyond just the price. Both models feature LG's stunning OLED technology, offering perfect blacks and brilliant colors. However, the main differences lie in the picture processing and performance: Processor: The C4 model comes with a more advanced Alpha 9 AI Processor Gen7 provides smooth, crisp picture and sound with AI Picture Pro and AI Super Upscaling, which provides improved picture and sound processing compared to the Alpha 8 AI Processor found in the B4 model. This results in better upscaling of lower-resolution content and overall picture quality. Brightness: The C4 model has a slightly higher peak brightness, enhancing HDR content, especially in well-lit rooms. Gaming Features: Both models support key gaming features like 120Hz refresh rate, VRR (Variable Refresh Rate), and G-SYNC. However, the C4 may have more advanced gaming options for smoother and more responsive gameplay. For a deeper dive into the specifics, we encourage you to send us a private message on social media @LGUSSupport, and we can explore other details further. 55 inch Class LG OLED B4 4K Smart TV 2024 - https://www.lg.com/us/tvs/lg-oled55b4pua-oled-4k-tv#pdp_specs 55 inch Class LG OLED evo C4 4K Smart TV 2024 - https://www.lg.com/us/tvs/lg-oled55c4pua-oled-4k-tv#pdp_specs We hope this helps! Thank you for your patience, and feel free to reach out anytime! —Renzo
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The LG OLED B4 is a premium watching experience that offers more than meets the eye. Entertainment extras like Dolby Vision, Dolby Atmos¹ and FILMMAKER MODE give you the big-picture experience straight from your couch. Enjoy outstanding picture powered by the α8 AI Processor, which uses AI to detect what you're watching and automatically improves the picture and sound quality of whatever you're watching. Search less and stream more, thanks to the next generation of AI technology from LG webOS 24. With Quick Cards, group your favorite apps into categories and even have instant access to over 300 free channels with LG Channels.² All LG OLED TVs have NVIDIA G-Sync, AMD FreeSync Premium and VRR to further improve gaming quality. And four HDMI 2.1 inputs allow you to plug in all the devices you need for the win. Whether you game on consoles or on the cloud,³ the LG Game Dashboard and Game Optimizer put all the control at your fingertips.
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| Pros for LG - 55" Class B4 Series OLED 4K UHD Smart webOS TV (2024) | |||
|---|---|---|---|
| Picture Quality, Refresh Rate, Color, OLED, Ease of use | Picture Quality, Setup, Size, Ease of Use, Weight | Picture Quality, OLED Quality | Picture Quality, Refresh Rate, Performance, Brightness, Black Level |
| Cons for LG - 55" Class B4 Series OLED 4K UHD Smart webOS TV (2024) | |||
| Remote Control | Button Layout | Brightness | There were no cons for this product— |
Specs
Reviews
Customers are saying
Customers highly value the 55" Class B4 Series OLED 4K UHD Smart webOS TV (2024) for its exceptional picture quality and vivid colors. The OLED technology is considered a game changer, and users appreciate the ease of setup. However, some customers have expressed concerns about the remote control's lack of a pause button.
Customer Images
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
- Rated 5 out of 5 stars
Great first OLED
It's a stunning OLED at a reasonable price. The colors are vibrant, the shadows inky and deep, and the performance doesn't hiccup. For my first OLED, I could not be more impressed.
Posted by OdaOda
- Rated 5 out of 5 stars
Happy LG TV Owner
So far I am pleased with my new LG 55” OLED TV professionally and efficiently installed 1/30/25 by Best Buy Geek Squad. Already had a mount and techs did a great job mounting it with no issues. It fit perfectly in my alcove space above my fireplace. Purchasing it at a $400 discounted sale price makes it even better. The LG Magic Remote Control is not as user friendly as the Samsung remote but learning as using. The picture response when using menu functions and when turned on is slower but will get used to it. Was forced to make this purchase after my Samsung 50” QLED died on me only after 3 years from install. I still have a LG and a Westinghouse TV both LED’s over 15 years old operating fine. I will never buy another Samsung TV.
Posted by FrancesB
- Rated 5 out of 5 stars
Budget friendly reliable TV that performs well.
I like this TV. I wanted the LG C4, but settled on this as it went on sale. I have this in 55" and set it up in my living room as a secondary TV as my primary is set up with a Samsung S90D. I must say this B4 is a little less bright that I expected. But if the room is illuminated well, it doesn't bother me so much. Also, it is very fragile. Like the screen cracked when I took it out of the box when it was home delivered. I had to go return it and get a new one instead which I got opened and inspected in store before driving it home. That apart, I wall mounted it and was pretty straightforward. It is extremely thin and pretty light weight all things considered. Connectivity has been excellent. A lot of unwanted apps and menu items - but nothing unlivable. This may be personal preference, but the menu and settings on this TV and maybe all LGs in general is so unintuitive. And lastly I would majorly ding the remote - the motion remote..it has so many buttons and arranged in an unintuitive way as well. It's just a mess. They should have a simpler remote and get rid of that motion gimmick. Or at least offer a choice of remotes. Well all that said, it has been a good value and reliable experience so far. So I have nothing much to complain and nothing to rave about either. I would say it's a good TV if you're on a budget. Nothing majorly wrong with it and you'll save money as well.
Posted by bunchofletters
