LG

LG OLED55B3PUA 55-Inch B3 Series OLED 4K Smart TV

4.5 (296 reviews)
4KHDMI 2.1

Experience Unrivaled Picture Quality with Self-Lit OLEDThe LG B3 Series 55-Inch Class OLED Smart TV offers unparalleled picture quality with self-lit OLED pixels, providing perfect black and incredible colors. Combined with AI-powered processing and smart features, this TV delivers a truly immers...

$953.80*
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*Price sourced from Amazon.com. Last updated:Jun 30, 2026.Price and availability are subject to change.

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Overview

Experience Unrivaled Picture Quality with Self-Lit OLED

The LG B3 Series 55-Inch Class OLED Smart TV offers unparalleled picture quality with self-lit OLED pixels, providing perfect black and incredible colors. Combined with AI-powered processing and smart features, this TV delivers a truly immersive entertainment experience.

  • Display Type: OLED
  • Screen Size: 55 Inches
  • Resolution: 4K
  • Refresh Rate: 120 Hz
  • Processor: a7 AI Processor Gen6
  • Smart TV: webOS 23 & LG Channels
  • HDR: Dolby Vision
  • Audio: Dolby Atmos
  • Gaming Features: NVIDIA G-Sync, AMD FreeSync Premium, VRR, 0.1ms response time
  • HDMI: Four HDMI 2.1 inputs

Key Features

SELF-LIT OLED 4K: LG OLED has over 8.3 million self-lit pixels that turn on and off individually for perfect black and incredible colors, with contrast you can't get from anywhere else but OLED. Take in the action with a native 120Hz refresh rate for smooth, lifelike movement whether you love sports, movies, games or all of the above.

a7 AI PROCESSOR Gen6: Enjoy outstanding picture powered by the α7 AI Processor Gen6, which uses AI to detect what you're watching and automatically improves the picture and sound quality. Experience everything from movies to sports in vibrant color and incredible depth for an immersive viewing experience.

webOS 23 & LG CHANNELS: Less searching, more streaming, thanks to the next generation of AI technology. Enjoy your favorite content including fitness, sports, entertainment and more. With Quick Cards, group your favorite apps into categories and use the Magic Remote to easily find what you're looking for. Get instant access to over 300 free channels with LG Channels.*

DOLBY VISION + HOME THEATER: 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 Atmos* for wrap-around sound. Land in the center of the action with LG's FILMMAKER MODE, allowing you to see films just as the director intended.

ULTIMATE GAMEPLAY: Packed with gaming features, the LG OLED B3 comes with everything you need to win. Experience crisp, smooth imagery from a 0.1ms response time and native 120Hz refresh rate. All LG OLED TVs have 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,* the LG Game Dashboard and Game Optimizer put all the control at your fingertips.

Specifications

Display Technology
Self-Lit OLED 4K
Screen Size
55 inches
Refresh Rate
Native 120Hz
Processor
α7 AI Processor Gen6
Smart TV Platform
webOS 23
HDR Support
Dolby Vision
Audio Technology
Dolby Atmos
Response Time
0.1ms
Gaming Sync Technologies
NVIDIA G-Sync, AMD FreeSync Premium, VRR
HDMI Inputs
4 (HDMI 2.1)

Pros & Cons

👍 Pros

  • Features Self-Lit OLED 4K technology with over 8.3 million pixels for perfect blacks and exceptional colors.
  • Offers a native 120Hz refresh rate, delivering smooth and lifelike movement for sports, movies, and games.
  • Equipped with the α7 AI Processor Gen6, which enhances picture and sound quality automatically using AI.
  • Provides the webOS 23 smart platform with Quick Cards and LG Channels for streamlined content access and over 300 free channels.
  • Supports Dolby Vision for extraordinary color, contrast, and brightness, alongside Dolby Atmos for immersive sound.
  • Comes with comprehensive gaming features including 0.1ms response time, NVIDIA G-Sync, AMD FreeSync Premium, and VRR support.
  • Includes four HDMI 2.1 inputs, allowing connectivity for multiple high-performance gaming consoles and devices.
  • Incorporates FILMMAKER MODE, enabling viewers to experience movies as directors intended, preserving original aesthetics.

👎 Cons

  • OLED technology, while offering superior blacks, may still present a theoretical risk of burn-in with static images over prolonged use.
  • The α7 AI Processor Gen6, while advanced, may not offer the absolute peak performance found in higher-tier OLED models with a9 processors.
  • The sound quality from built-in speakers, even with Dolby Atmos, may not match the depth and power of a dedicated external sound system.
  • While rich in free channels, LG Channels' content selection may not entirely replace a user's paid streaming subscriptions.
  • The 55-inch size, while versatile, might not be large enough for users seeking an ultra-immersive big-screen home theater experience.

Frequently Asked Questions

The Self-Lit OLED 4K display features over 8.3 million pixels that turn on and off individually, providing perfect blacks, incredible colors, and unmatched contrast.
Yes, it has a native 120Hz refresh rate, which ensures smooth, lifelike movement for fast-paced content like sports, movies, and games.
This TV is powered by the α7 AI Processor Gen6, which uses AI to automatically enhance both picture and sound quality for an immersive viewing experience.
webOS 23 offers streamlined content access with Quick Cards to group favorite apps and provides instant access to over 300 free channels through LG Channels.
Yes, it's packed with gaming features, including a 0.1ms response time, native 120Hz refresh rate, NVIDIA G-Sync, AMD FreeSync Premium, VRR, and four HDMI 2.1 inputs.