Highlights
Key Specs
Display TypeOLEDResolution4K (2160p)Screen Size Class48 inchesHigh Dynamic Range (HDR)YesHigh Dynamic Range FormatDolby Vision, HDR 10, Hybrid Log-Gamma (HLG)OLED TechnologyStandard OLEDRefresh Rate120HzSpecific Manufacturer Technologiesα8 AI ProcessorSmart PlatformwebOSFeatured Streaming ServicesNetflix, Max, Disney+, YouTube, Prime Video, ESPN+, Apple TV+, Sling TVNumber of HDMI Inputs (Total)4TV Tuner TypeATSC, Clear QAMWorks WithAmazon Alexa, Google Assistant, Apple HomeKitVoice Assistant Built-inAmazon Alexa
General
Product Name48" Class B4 Series OLED 4K UHD Smart webOS TV (2024)BrandLGModel NumberOLED48B4PUASeriesOLED 4K - B4Model Year2024
Dimensions
Product Height With Stand26.9 inchesProduct Width42.1 inchesProduct Depth With Stand9.3 inchesProduct Height Without Stand24.4 inchesProduct Depth Without Stand1.8 inchesProduct Weight With Stand25.8 poundsProduct Weight Without Stand25.4 poundsStand Width36.7 inchesStand Depth9.3 inchesAdjustable Stand WidthNo
Display
Display TypeOLEDResolution4K (2160p)Screen Size48 inchesScreen Size Class48 inchesHigh Dynamic Range (HDR)YesHigh Dynamic Range FormatDolby Vision, HDR 10, Hybrid Log-Gamma (HLG)Picture Quality Enhancement TechnologyCinema HDROLED TechnologyStandard OLEDCurved ScreenNoRefresh Rate120HzMaximum Contrast Ratio (Native)InfiniteSynchronization TechnologyG-SYNC Compatible (NVIDIA Adaptive Sync), FreeSync (AMD Adaptive Sync)Closed CaptioningYes
Features
Remote Control TypeMagicSpecific Manufacturer Technologiesα8 AI ProcessorSmart CapableYesSmart PlatformwebOSFeatured Streaming ServicesNetflix, Max, Disney+, YouTube, Prime Video, ESPN+, Apple TV+, Sling TVScreen MirroringYesScreen Mirroring TechnologyApple AirPlay 2, ChromecastContent SharingMobile to TVIndoor Or Outdoor UseIndoorText-To-SpeechYesVideo DescriptionYesV-ChipNoTV TunerDigital
Connectivity
Number of HDMI Inputs (Total)4Display Connector(s)4 x HDMI 2.1Network Connector(s)1 x LANAudio Only Outputs1 x Optical digital audioUSB Ports2 x USB-A 2.0Wireless ConnectivityWi-Fi, BluetoothHDMI Audio Return Channel (ARC)eARCTV Tuner TypeATSC, Clear QAMRF Antenna InputYesNumber Of USB Port(s) (Total)2Headphone JackNoWireless Networking StandardWi-Fi 5Bluetooth Version5.1
Compatibility
VESA Wall Mount Standard300mm x 200mmWorks WithAmazon Alexa, Google Assistant, Apple HomeKitVoice Assistant Built-inAmazon Alexa
Audio
Built-In SpeakersYesBuilt-in Speaker TypeDownward firingSurround Sound SupportedDolby AtmosNumber of Audio Channels2.0
Power
ENERGY STAR CertifiedYesEPEAT QualifiedNoEstimated Annual Operating Cost31 United States dollarsEstimated Annual Electricity Use195 kilowatt hoursRechargeable Battery (Remote Control)NoBattery Size (Remote Control)AANumber Of Batteries Required (Remote Control)2Number of Batteries Included (Remote Control)2Battery Type (Remote Control)Alkaline
Included
Wall Mount IncludedNoStand IncludedYes
Warranty
Manufacturer's Warranty - Parts1 Year LimitedManufacturer's Warranty - Labor1 Year Limited
Box Dimension
Height29 inchesWidth50.3 inchesDepth6 inchesCubicDimension8752 inches
Other
UPC195174078136
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.
Self-lit Pixels
LG's flagship OLED technology creates an incredible watching experience and stellar picture quality illuminated with over 8 million self-lit pixels. Take in rich and accurate colors from the brightest to darkest parts of the scene thanks to 100% Color Volume⁴and with 100% Color Fidelity.⁵
Dolby Vision, FILMMAKER MODE and Dolby Atmos
Experience the magic of the big screen right from your couch. Every LG OLED comes loaded with Dolby Vision for extraordinary color, contrast and brightness, plus Dolby Atmos¹ for sound you can feel all around you. Land in the center of the action with FILMMAKER MODE, allowing you to see films just as the director intended.
α8 AI Processor
No more fiddling with picture settings. The α8 AI Processor 4K with AI Picture Pro identifies the type of content you're watching to automatically select the ideal setting and fine-tune the picture for the best watching experience and with Multi View with 2 screens lets you split your screen into two unique views so you can watch even more than before.⁶
NVIDIA G-Sync compatible & AMD FreeSync Premium compatible
NVIDIA G-Sync, AMD FreeSync Premium and VRR to further improve gaming quality. Four HDMI 2.1 inputs allow you to plug in all the devices you need. Whether you game on consoles or on the cloud,⁸ the LG Game Dashboard and Game Optimizer put all the control at your fingertips.
Always Ready
When you're not watching, display paintings, photos and other content to blend the LG OLED B4 into your surroundings.
webOS & LG Channels
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*
Learn more about legal disclaimers .
What's Included
48" 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
Legal 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.
- ³Subscription and compatible gaming controller are required.
- ⁴Display Color Gamut Volume (CGV) is equivalent or exceeds the CGV of the DCI-P3 color space as verified independently** by Intertek.
- ⁵Third-party testing conducted by Intertek showed the color fidelity of the display is 100% based on CIE dE 2000 color difference metric calculated for 125 color patches distributed across the entire color volume. Color difference (Delta-E) value was less than 2 for each of the 125 color patches.
- *Internet 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.
Search
- A: AnswerI bought one and picked it up the other day, its been great, zero issues. The $700 is kind of like wow... did they just make that up to sell it faster? Maybe just a 4th of July sale price? Anyway, I am happy with the TV, it is def a good deal, cant find anything comparable at that price.
Answered by Bobby
- A: AnswerGreat question, Margaret! The stand on this LG TV has preset mounting holes, so it cannot be adjusted. Our best recommendation would be to pair it with an LG Wall Mounting Kit (OLW480B). If you have any other questions, we're only a message away on social media @LGUSSupport. We're always here to help! *Joseph
Answered by LG Digital Customer Care
Q: QuestionThis TV doesn't have a next Gen tuner that works, right?(1 answer)
A: AnswerHi there! Thank you for reaching out. We understand you're inquiring about the LG Model #OLED48B4PUA and its compatibility with next-gen tuners. The OLED48B4PUA model does not come with a built-in next-gen tuner, which is required to receive certain advanced TV signals. To access next-gen features, you would need to use an external tuner or set-top box that supports these functions. If you have any more questions or need further assistance, please send us a private message on Social Media @LGUSSupport. Our team will be happy to provide additional information and support. We appreciate your patience. —RenzoAnswered by LG Digital Customer Care
- A: AnswerUse the space under the screen if you use the legs to table top mount it.
Answered by RichardK
- A: AnswerHello there! Thank you for reaching out with your question. We understand the importance of chroma subsampling for a quality display, especially when using a TV as a computer monitor. The Model # OLED48B4PUA does support chroma subsampling 4:4:4. This means you can use it for detailed tasks like text editing and graphic design with minimal color distortion, similar to a high-quality computer monitor. If you need further assistance or have any other questions, please send us a private message on Social Media @LGUSSupport. Our team will be happy to provide additional information and support. We appreciate your patience. —Renzo
Answered by LG Digital Customer Care
Q: QuestionIs this tv have hdmi 2.1 input for the tv? And what’s the input lag for this tv ?(1 answer)
A: AnswerHi there! Thank you for reaching out with your questions. We understand that having the right inputs and minimal input lag is important for your viewing experience. The Model # OLED48B4PUA does indeed come with HDMI 2.1 inputs, which are perfect for high-definition video and gaming needs. As for input lag, this model is designed to offer an excellent gaming experience with low latency. For precise figures on input lag and to ensure you're getting the most out of your TV, please send us a private message on Social Media @LGUSSupport. Our team will be happy to provide you with detailed information and any additional support you may need. We appreciate your patience. —RenzoAnswered by LG Digital Customer Care
Q: QuestionWill this have burn in issues because its OLED?(1 answer)
A: AnswerHello there! While OLED technology, including the LG OLED48B4PUA, can be prone to burn-in issues due to its nature of using organic compounds, LG has incorporated several features to help mitigate this risk. These include pixel shift, screen savers, and automatic brightness adjustments. To further reduce the risk of burn-in, it's a good idea to avoid displaying static images for extended periods and use the TV's built-in settings to manage screen usage. If you have any concerns or need more details on managing burn-in, please send us a private message on Social Media @LGUSSupport, and our team will be happy to assist you. We appreciate your attention to maintaining your TV's performance. —RenzoAnswered by LG Digital Customer Care
Q: QuestionDoes this tv put out a lot of heat?(2 answers)
A: AnswerNOAnswered by MikeS
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Shipping
Reviews
Rating 4.6 out of 5 stars with 85 reviews
4.6Rating by feature
- 4.8Picture Quality
Rating 4.8 out of 5 stars
- 4.2Sound Quality
Rating 4.2 out of 5 stars
- 4.7Brightness
Rating 4.7 out of 5 stars
2 expert reviews
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 4 out of 5 stars
Good TV for gaming and watching movies
First off, the TV itself looks amazing. Compared to my C3 I really can't tell much difference...the C3 is slightly brighter at max brightness but I never have either that bright. Gaming performance is excellent. It supports 120hz and VRR on all 4 HDMI ports. Pixel response is good, particularly in low latency mode. It also does support G-Sync and works great as a monitor. I've got mine hooked up to my gaming PC and it's been working flawlessly. The only thing that I don't like is it seems to have a bit of coil whine at high brightness levels. LG support told me it's likely coming from the power supply of the unit and it should quiet down over time. To be fair I am very sensitive to that type of high pitch noise so a normal person might not hear it at all. I'll update my review if it ends up quieting down or if I end up having the TV replaced. Overall I'm pretty happy with the B4, especially on sale for the price I paid. If it's on sale again I'd recommend it. If not, I'd wait until it is. At it's normal price you'd be better off going with a C4 for a li