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LG OLED55CXPUA 55
LG OLED55CXPUA 55
LG OLED55CXPUA 55
LG OLED55CXPUA 55
LG OLED55CXPUA 55
LG OLED55CXPUA 55
LG OLED55CXPUA 55
LG

LG OLED55CXPUA 55" OLED 4K Smart TV - 2020

★★★★★4.7 (5643 reviews)
4K300 x 200USB 2.0Bluetooth 5.0HDMI 2.1

55-inch 4K OLED with self-lit pixels, 120Hz refresh rate, and α9 Gen 3 AI Processor for cinema-quality viewing at home.

$1,596.99*
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*Price sourced from Amazon.com. Last updated:Jun 08, 2026.Price and availability are subject to change.

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Overview

The LG OLED55CXPUA is a 55-inch 4K smart TV built around LG's self-lit OLED technology, where each of the millions of pixels produces its own light and can shut off independently. This fundamental design difference enables perfect blacks, infinite contrast, and a level of color accuracy that backlit LED panels cannot replicate. The α9 Gen 3 AI Processor 4K works behind the scenes to enhance every source, applying AI Picture Pro for scene-by-scene optimization, AI Sound Pro for virtual surround processing, and AI 4K Upscaling to make lower-resolution content look sharper and more detailed on the 4K panel.

For gaming and fast-paced content, the CX delivers a native 120Hz refresh rate paired with OLED Motion Pro for smooth, blur-free action sequences. All four HDMI inputs support the HDMI 2.1 standard, providing 4K at 120fps, Auto Low Latency Mode, and Variable Refresh Rate — features that make it a natural companion for PlayStation 5 and Xbox Series X consoles. LG's webOS platform provides quick access to all major streaming apps, while the included Magic Remote offers point-and-click navigation alongside voice control through built-in Alexa, Google Assistant, and Siri compatibility. With wireless connectivity via WiFi 802.11ac and Bluetooth 5.0, plus a slim 1.8-inch profile without the stand, the OLED55CXPUA combines top-tier picture quality with a refined, modern design.

Key Features

LG OLED TV: Only OLED pixels emit their own light, allowing for perfect black, intense color and stunning picture.

PIXEL LEVEL DIMMING: Millions of pixels emit their own light. Only OLED can turn pixels off completely and independently. See stunning picture, perfect black, infinite contrast and over a billion rich colors.

WEBOS AND MAGIC REMOTE: LG's fan-favorite webOS platform makes it surprisingly fast and easy to stream movies and shows with your favorite apps and find new obsessions based on what you like. While our Magic Remote lives up to its name with voice and motion control — just speak or simply point, scroll and click.

α9 GEN 3 AI PROCESSOR 4K: Everything you see and hear is automatically made better, clearer, smoother, and more dynamic with our a9 Gen 3 AI Processor 4K. You don’t have to do a thing. Our most advanced 4K processor does it for you with AI Picture Pro, AI Sound Pro, AI 4K Upscaling, and the ability to help your TV to evolve over time.

Lock, unlock and check lock status with voice assistants including Amazon Alexa, Google Assistant and Siri

OLED MOTION PRO: our most advanced motion handling for fast movements in sports and action sequences | Native Refresh Rate: 120Hz

INPUTS & OUTPUTS: HDMI (HDMI 2.1 & HDCP 2.2) x4, USB 2.0 x3, RF Connection Input (Antenna/Cable) x1, AV Input x1 (breakout cable required, not included), Ethernet Input x1, RS-232C Input (Mini Jack) x1, Digital Audio Output (Optical) x1 | Wi-Fi (802.11ac) & Bluetooth 5.0 Enabled

DIMENSIONS W/O STAND(WxHxD): 48.3" x 27.8" x 1.8" | DIMENSIONS W/ STAND: 48.3" x 29.1" x 9.9" | STAND WIDTH: 39.3". VESA Mounting (W x H)-300 x 200

Specifications

Brand
LG
Model
OLED55CXPUA
Screen Size
55 inches
Display Technology
OLED
Resolution
4K (3840 x 2160)
Refresh Rate
120Hz (Native)
Processor
α9 Gen 3 AI Processor 4K
HDMI
4x HDMI 2.1 (HDCP 2.2)
USB
3x USB 2.0
WiFi
802.11ac
Bluetooth
5.0
Audio Output
Digital Optical
Voice Assistants
Alexa Built-In, Google Assistant, Siri
Dimensions without Stand (W x H x D)
48.3 x 27.8 x 1.8 inches
Dimensions with Stand (W x H x D)
48.3 x 29.1 x 9.9 inches
Stand Width
39.3 inches
VESA Mount
300 x 200mm

Pros & Cons

👍 Pros

  • Self-lit OLED pixels deliver perfect blacks and infinite contrast for exceptional picture quality.
  • Four HDMI 2.1 ports support 4K at 120Hz, making it well-suited for next-gen gaming and high-frame-rate content.
  • The α9 Gen 3 AI Processor automatically enhances picture and sound quality across all sources.
  • Incredibly thin profile at just 1.8 inches deep without the stand.
  • Native 120Hz refresh rate with OLED Motion Pro handles fast-moving sports and action scenes smoothly.

👎 Cons

  • OLED panels carry a risk of permanent image retention (burn-in) with prolonged static content display.
  • Peak brightness is lower than high-end LED TVs, which may be noticeable in very bright rooms.
  • The 2020 model lacks some features found in newer LG OLED generations, such as improved gaming dashboards.
  • Stand width of 39.3 inches requires a wide TV surface or table.

Frequently Asked Questions

Each pixel on the LG CX OLED emits its own light and can turn off completely, producing perfect blacks and infinite contrast that LED TVs with backlighting cannot achieve.
Yes, all four HDMI ports on the OLED55CXPUA support HDMI 2.1, enabling 4K at 120Hz, eARC, and Variable Refresh Rate for next-gen gaming consoles.
The processor uses AI-driven algorithms to automatically optimize picture and sound in real time, including AI Picture Pro, AI Sound Pro, and AI 4K Upscaling for lower-resolution content.
Yes, it has Alexa built in and also works with Google Assistant and Siri for voice control, including smart home functions like lock and unlock commands.
The OLED55CXPUA uses a 300 x 200mm VESA mounting pattern.

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