Shipping
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)2Wireless Networking StandardWi-Fi 5Bluetooth Version5.1Headphone JackNo
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 Chemistry (Remote Control)AlkalineVoltage120 volts
Included
Wall Mount IncludedNoStand IncludedYes
Warranty
Manufacturer's Warranty - Parts1 Year LimitedManufacturer's Warranty - Labor1 Year Limited
Box Dimension
Height28.9 inchesWidth50.4 inchesDepth6 inchesCubicDimension8739 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.
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
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
Manuals & Guides
Specification Sheet
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. Software update will automatically download. Consumers who disable “auto-update” will receive a pop-up notification to accept or deny software update.
Search
Q: QuestionWhat picture quality enhancement technology does this LG TV use?(1 answer)
A: AnswerThis LG TV uses Cinema HDR technology to enhance the picture quality.This question and answer was generated by AI based on customer and product data.Q: QuestionHow many HDMI inputs does this TV have?(1 answer)
A: AnswerThis TV is equipped with four HDMI 2.1 inputs.This question and answer was generated by AI based on customer and product data.Q: QuestionDoes this LG TV have built-in Wi-Fi?(1 answer)
A: AnswerYes, this LG TV has built-in Wi-Fi for easy connectivity.This question and answer was generated by AI based on customer and product data.Q: QuestionDoes this TV include Dolby Atmos?(1 answer)
A: AnswerYes, this TV comes with Dolby Atmos for an immersive audio experience.This question and answer was generated by AI based on customer and product data.Q: QuestionHow many speakers does this TV have?(1 answer)
A: AnswerThis LG TV has two built-in speakers.This question and answer was generated by AI based on customer and product data.- A: AnswerMy hunch is many people who want this technology are seeking larger television screens. People seeking 48 inch televisions are likely much more budget minded and picture may not be as important. So this TV is kind of been no man’s land with respect to their marketing audience. so you’re a great TV and a good price.
Answered by David
Q: QuestionWhat is the difference between the B4 model and the C4 model (OLED48C4PUA)?(1 answer)
A: AnswerHi there. Thank you for your question! We understand that you're curious about the differences between the OLED48B4PUA and OLED48C4PUA models. While both offer stunning 4K OLED displays and 120Hz refresh rates, here are a few key differences: Processor: The OLED48B4PUA features the α8 AI Processor, while the OLED48C4PUA is equipped with the more advanced α9 AI Processor Gen7, which provides better image processing and AI upscaling for enhanced picture quality. Gaming Features: The C4 model supports VRR (Variable Refresh Rate) up to 144Hz, AI Upscaling, and Game Optimizer, making it a better choice for gamers. The B4 model is still great for gaming but maxes out at 120Hz for VRR. AI Features: The C4 model also includes additional AI features like AI Picture Pro, AI Sound Pro, and AI Concierge, which are not present in the B4 model. These enhance sound, picture, and overall user experience. Audio: The C4 model has a more advanced 2.2 channel speaker system with Dolby Atmos and AI Sound Pro for a richer sound experience. The B4 model offers a standard 2.0 channel system. Both models are excellent choices, but if you're looking for a more premium experience with advanced processing, enhanced gaming, and AI features, the C4 model might be the way to go! OLED48B4PUA - https://www.bestbuy.com/site/lg-48-class-b4-series-oled-4k-uhd-smart-webos-tv-2024/6584787.p?skuId=6584787 OLED48C4PUA - https://www.lg.com/us/tvs/lg-oled48c4pua-oled-4k-tv#pdp_specs For any further assistance, please send us a private message on social media @LGUSSupport, and we’d be happy to help. —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
Reviews
Rating 4.7 out of 5 stars with 785 reviews
4.7Rating by feature
- 4.9Picture Quality
Rating 4.9 out of 5 stars
- 4.5Sound Quality
Rating 4.5 out of 5 stars
- 4.7Brightness
Rating 4.7 out of 5 stars
Customers are saying
Customers are satisfied with the picture quality, brightness, price, and smart features of the 48" Class B4 Series OLED 4K UHD Smart webOS TV (2024). They appreciate the vibrant colors, deep blacks, and excellent viewing angles. Customers also find the TV to be a great value for the price, with many saying that it is the best OLED TV they have ever owned. However, some customers have expressed dissatisfaction with the remote control, finding it to be unintuitive and difficult to use. Additionally, a few customers have mentioned that the 48-inch screen size is too small for their liking.
This summary was generated by AI based on customer 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 5 out of 5 stars
Highly Recommend This Television
My 2008 Samsung tv I bought from Best Buy died so after researching televisions I picked this one. I can't believe 17 years ago my old samsung TV cost $1200 compared to the latest and greatest lg oled tv was half the price. I'm not a tv expert by any means I'm just an average joe who appreciates how easy it was to set up, literally plug it in, follow the steps on the screen, connect to wifi automatically and bam your good to go. Every time I would go to best buy and look at tvs over the years I always wanted an lg oled it always looked the best compared to all the others on display. I can't believe I finally got one and I would highly recommend this TV over all the other brands out there as lg has made there name well known for oleds. The picture is crystal clear and the sound is really good. I believe this TV is the best bang for your money.
Posted by DavidR
Rated 5 out of 5 stars
Perfect bedroom tv!
I bought this to replace a 2010 42” LG TV in my bedroom. I wanted a larger size and had been considering a 55”, but couldn’t find something to fit the quality I was looking for on my sub $800 budget. Purchased this below that price point on-sale. This doesn’t have the brightness of the higher models, but that’s not necessary for my usage where it’s typically morning or night. Plus I can control the light if I’m having a lazy day. I have a 2 year old budget LG in my office. Web OS is a much better experience on the B4, I have to admit I almost didn’t purchase this due to my experience with that underpowered processor. There was some initial slowness in Web OS when I first got the TV, which is probably due to it updating apps and software in the background. Over the next month I have not experienced that with the B4. Mine is in a corner of a 13.5’ x 12.5 bedroom. Audio from the tv speakers is decent, but I’m glad to have a Denon soundbar as I wouldn’t be happy with only the tv audio. This is my first OLED TV and the colors/ blacks are simply gorgeous. I ended up rewatching several episodes of Foundation on Apple TV, which looked phenomenal. The 65” Samsung Frame in my den doesn’t have the same punch in comparison! I’m very happy with this purchase. For my application the model and size is absolutely perfect.
Posted by NateA
Rated 3 out of 5 stars
The next-gen of TVs
It's a really great picture and offers tons of user friendly features. I really like the built-in Ai systems for image and sound quality. You can have a standard definition TV channel running for a few minutes and then image enhancement makes them look like HD channels, that was pretty wild to me. The brightness also really helps counter any light glare on the screen which is really nice too. These ultimately made understand better why 4kHD TVs are becoming less expensive, the OLED really is a next level, mind blowing experience compared to them. It's night and day, I'm glad I was able to catch the Labor Day discount sale at $750, I've been wanting one for some time but couldn't find what I want for under $1000. The only down side is getting the thing out of the box without breaking the screen. The screen is very very thin, like I'm talking iPad thickness here. (I measured and it's actually 3/8 inch thick!) It's pretty heavy and there's almost no way you can pick it up without leaning it over entirely on one side to get a grip that won't damage the screen. (not a fan of that when it's a $1000 tv)
Posted by DanM