LG
LG 55NANO90UPA - 55" 4K NanoCell Smart UHD TV (2021)
★★★★★
4KUHDHDR
Immersive Entertainment: LG 55" NanoCell 90 Series 4K Smart UHD TVExperience breathtaking picture quality and smart features with the LG 55NANO90UPA. This NanoCell 90 Series 4K Smart UHD TV delivers vibrant colors, deep blacks, and seamless integration with your smart home devices. Specifications...
$1,099.99*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Immersive Entertainment: LG 55" NanoCell 90 Series 4K Smart UHD TV
Experience breathtaking picture quality and smart features with the LG 55NANO90UPA. This NanoCell 90 Series 4K Smart UHD TV delivers vibrant colors, deep blacks, and seamless integration with your smart home devices.
Specifications:
- Display Type: NanoCell
- Resolution: 4K UHD
- Refresh Rate: 120Hz
- Dimming Technology: Full Array Dimming
- Smart Features: Google Assistant and Alexa Built-in
Key Features
4K NANOCELL DISPLAY: Bring your favorite shows to life with a billion rich colors. Get deep blacks and enhanced contrast for a more detailed picture with Full Array Dimming.
A7 GEN 4 AI PROCESSOR 4K: Catch every detail with the smooth, crisp picture brought to you by our a7 Gen 4 AI Processor 4K. It adjusts your viewing and audio settings automatically with AI Picture and AI Sound, while AI 4K Upscaling authentically calibrates every scene.
HOME CINEMA EXPERIENCE: Get breathtaking picture and audio that makes you feel like you're in the action with Cinema HDR, Dolby Vision IQ & Dolby Atmos. See movies exactly how directors intended with Filmmaker Mode. And with built-in access to Netflix, Prime Video, Apple TV+, Disney+ and LG channels, your favorite content is at your fingertips.
REFRESH RATE 120HZ: TruMotion 240 technology reduces blur to sharpen every detail with up to 240 frames per second– giving fast-moving gaming sequences a crystal-clear look for picture that moves with you.
THINQ AI: Control your LG smart products and other smart devices right from your TV with Home Dashboard or with the Magic Remote voice control. ThinQ AI plus Google Assistant and Alexa built-in let you control your entire connected home.
Specifications
Display Technology
4K NanoCell Display
Screen Size
55 inches
Resolution
UHD (4K)
Backlight Technology
Full Array Dimming
Processor
a7 Gen 4 AI Processor 4K
HDR Support
Cinema HDR, Dolby Vision IQ
Audio Technology
Dolby Atmos
Refresh Rate
120Hz (TruMotion 240)
Smart TV Platform
ThinQ AI
Voice Assistants
Google Assistant, Alexa built-in
Streaming Services
Netflix, Prime Video, Apple TV+, Disney+, LG channels
Pros & Cons
👍 Pros
- Features a 4K NanoCell Display, bringing shows to life with a billion rich colors and deep blacks.
- Utilizes Full Array Dimming for enhanced contrast and a more detailed picture quality.
- Powered by the a7 Gen 4 AI Processor 4K, which automatically adjusts viewing and audio settings for optimal performance.
- Offers a Home Cinema Experience with Cinema HDR, Dolby Vision IQ, and Dolby Atmos for immersive picture and audio.
- Includes Filmmaker Mode, allowing viewers to see movies exactly as directors intended.
- Boasts a 120Hz refresh rate with TruMotion 240 technology to reduce blur and sharpen fast-moving scenes.
- Integrates ThinQ AI with Google Assistant and Alexa built-in, enabling control of the TV and connected smart home devices via voice.
👎 Cons
- As a 55-inch TV, it requires significant space and might be too large for smaller rooms or apartments.
- While NanoCell technology improves color and viewing angles, it may not achieve the absolute black levels of OLED displays.
- The a7 Gen 4 AI Processor, while advanced, is not LG's top-tier a9 processor, meaning some premium features might be absent.
- Despite its comprehensive smart features, consistent internet connectivity is required for optimal performance and access to streaming services.
- The price point for a 55-inch 4K NanoCell Smart UHD TV from a leading brand like LG is generally higher than entry-level 4K TVs.
Frequently Asked Questions
What kind of display technology does the LG 55NANO90UPA use?
The LG 55NANO90UPA features a 4K NanoCell display, designed to deliver a billion rich colors and enhanced contrast with Full Array Dimming.
What is the refresh rate of this LG TV?
This LG TV has a refresh rate of 120Hz, supported by TruMotion 240 technology for reducing blur in fast-moving scenes.
Does the LG 55NANO90UPA support advanced HDR formats?
Yes, it supports Cinema HDR, Dolby Vision IQ, and Dolby Atmos, aiming to provide a comprehensive home cinema experience.
What is the purpose of the a7 Gen 4 AI Processor 4K in this TV?
The a7 Gen 4 AI Processor 4K automatically adjusts viewing and audio settings with AI Picture and AI Sound, and performs AI 4K Upscaling for detailed images.
Can I control smart home devices with this TV?
Yes, with ThinQ AI, Google Assistant, and Alexa built-in, you can control your LG smart products and other connected smart devices directly from the TV using the Home Dashboard or Magic Remote voice control.
What streaming services are built into the LG 55NANO90UPA?
The TV offers built-in access to popular streaming services such as Netflix, Prime Video, Apple TV+, Disney+, and LG channels.
What is Filmmaker Mode and how does it benefit viewing?
Filmmaker Mode allows viewers to experience movies exactly as directors intended, by preserving original aspect ratios, colors, and frame rates.
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