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4.8 | 4 Reviews

LG NanoCell 90 Series 2021 55 inch 4K Smart UHD TV w/ AI ThinQ® (54.6" Diag)



  • Real 4K NanoCell Display w/ Full Array Dimming
  • 7 Gen4 AI Processor 4K w/ AI Picture & AI Sound
  • Dolby Vision IQ & Dolby Atmos
  • Built-in access to Netflix, Prime Video, Apple TV+, Disney+ & LG Channels

Quick Specs

  • Type: 50 - 59 LED-LCD TV
  • Width: 48.5"
  • Height: 28.2"
  • Depth: 1.8"
  • Energy Star Rated: No
  • Screen Size: 55"
  • Max Resolution: 4K
  • WiFi Connected: Yes

See More



  • Real 4K NanoCell Display w/ Full Array Dimming
  • 7 Gen4 AI Processor 4K w/ AI Picture & AI Sound
  • Dolby Vision IQ & Dolby Atmos
  • Built-in access to Netflix, Prime Video, Apple TV+, Disney+ & LG Channels
  • LG ThinQ AI w/ Magic Remote
AI Sound Yes
TV Sound Mode Share Yes
Bluetooth Surround Ready Yes
HDMI Input (HDCP 2.2) 4 (side)
HDMI Audio Return Channel (ARC) eARC (HDMI 3)
USB Ports (v 2.0) 2 (rear) / 1 (side)
RF Connection Input (Antenna/Cable) 1 (rear, RF)
Ethernet Input 1 (rear)
RS-232C Input (Mini Jack) 1 (rear)
Digital Audio Output (Optical) 1 (side)
Latest HDMI (4K @ 120Hz) HDMI 3,4
Full Web Browser Yes
LG Content Store (App Store) Yes
Gallery Mode Yes
Operating System webOS
LG Channels Yes
Sports Alert Yes
Who.Where.What? Yes
Home Dashboard Yes
Content Partners Netflix, Prime Video, Disney+, Apple TV, Hulu, Paramount+, Peacock, Youtube TV, Spotify, iHeartRadio and more
Works With Google Assistant, Alexa, Apple Airplay2 and Homekit (Separate device purchase necessary)
100% Color Consistency Yes
Backlight Dimming Technology Full Array Dimming
Backlight Type Slim Direct
Billion Rich Colors Yes*
Display Resolution 4K Ultra HD (3,840 x 2,160)
Display Type Real 4K NanoCell Display
Nano Color Yes
Wide Viewing Angle Yes (IPS Technology)
Auto Genre Selection Yes (Dolby HDR Only)
AI Picture Yes
Motion NanoCell Motion
Picture Processor 7 Gen 4 Processor 4K
Refresh Rate TruMotion 240 (120Hz Native)
Upscaling AI 4K Upscaling
ALLM (Auto Low Latency Mode) Yes
FreeSync Premium™ Yes
Game Optimizer Yes
HGiG Yes
VRR (Variable Refresh Rate) Yes
Intelligent Voice Recognition Yes
LG ThinQ® AI Yes
Magic Remote Control Yes (Point, Click, Scroll, Voice)
Universal Remote Control Yes (Auto Device Detection)
Voice Assistants Google and Alexa Built-in (No separate device purchase necessary)
Audio Codec AC4, AC3(Dolby Digital), EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA, apt-X (refer to manual)
Dolby Atmos Yes
LG Sound Sync Yes
Output Power 40W
Speaker Direction Down Firing
Speaker System 2.2 Channel
WiSA Ready Yes (Separate Dongle Purchase Required) *Up to 2.1 Channel
Bluetooth® Support Version 5.0
HDMI-CEC (Simplink) Yes
IP Control Yes
Smart Phone Connectivity Yes
TV Tuner ATSC, Clear QAM
Wi-Fi® Standard Wi-Fi Certified 802.11ac
Annual Power Consumption 161kWh/y
Power Consumption 86.6W
Power Supply (Voltage, Hz) AC 100~240V 50-60Hz
Standby Power Consumption Under 0.5W
TV Weight without Stand 39.7 lbs
UPC 195174005866
Packaging Dimensions (WxHxD) 55.9" x 32.9" x 7.4"
Packaging Weight 49.8 lbs
Stand Width 43.5"
TV Dimensions with Stand (WxHxD) 48.5" x 30.7" x 10.1"
TV Dimensions without Stand (WxHxD) 48.5" x 28.2" x 1.8"
TV Weight with Stand 40.6 lbs
VESA Mounting (W x H) 300 x 300
E-Manual Yes
Power Cable Yes
Quick Start Guide Yes
Remote Magic Remote
Remote Control Battery Yes (AA)
Wall Mount WB21LMB (Optional, Sold Separately), OLW480B (Optional, Sold Separately)
2021 Model Yes
HDR Cinema HDR (Dolby Vision, HDR10, HLG)
Dolby Vision IQ Yes
Filmmaker Mode Yes
Magic Explorer Yes
Next Picks Yes
Limited Warranty Please see Support tab for full details on the limited warranty
* Billion Rich Colors achieved via Dithering.

Quick Specs

  • Appearance

  • Type: 50 - 59 LED-LCD TV

  • Dimensions

  • Width: 48.5"
  • Height: 28.2"
  • Depth: 1.8"

  • Features

  • Energy Star Rated: No

  • Size

  • Screen Size: 55"

  • Panel

  • Max Resolution: 4K
  • WiFi Connected: Yes

Specifications Sheet

Energy Guide

Owner's Manual English 8,376K 07/31/2021

Quick Setup Guide English 7,695K 03/31/2022

Get Adobe Reader

* Documents require Adobe Reader.

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

4.8 out of 5

100% of reviewers recommend this product.

5 Stars

True colors and excellent picture quality

Ashwinrao123 4/14/2023

I initially wanted to buy a QLED TV but when I compared the quality and output of this TV a QLED i was super impressed how good the output was for half the cost obviously the QLED had its own standard but If wome one is not looking to spend that amount of money and still wants to enjoy a great movie or netflix or sport game this is perfect TV for the price. The TV remote and overall response of the interface is fast.
Originally posted on

Yes, I recommend this product

5 Stars

Great picture quality.

Shastew 12/26/2022

We bought this tv as a gift for each other for our anniversary. The small print on screen was getting hard to read. This set is really so much clearer. We love it
Originally posted on

Yes, I recommend this product

4 Stars


LG 55NANO90UPA 12/19/2022

I purchased this tv 3 February 2022 and have used it for more than 3700 hours. Playing ps5 at 4k 120hz is an eye opening experience. The refresh rate of this television is impressive. There is one drawback that I wish could be changed and that is the amount of blooming that can be seen on this television. But this is a very nice television to own.
Originally posted on

Yes, I recommend this product

5 Stars

My LG Smart NanoCell TV

Sandi S 10/20/2022

We love our NanoCell TV. It is the first Smart TV that we have owned and wish we had bought one sooner However I dont think we would have had the same great experience. I love the Magic Remote. It is so great. The picture on this TV is also fantastic. We were told that the blacks would not be as black but let me tell you I dont know how much blacker you can get.
Originally posted on

Yes, I recommend this product

 Incentivized Review