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50 Inch LG UHD AI UT81 4K Smart TV 2024

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50 Inch LG UHD AI UT81 4K Smart TV 2024

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50 Inch LG UHD AI UT81 4K Smart TV 2024

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Front view

webOS

Pocket-lint

LG webOS ranked the best smart TV operating system

Learn More

webOS 24 UX

iF Design Award 

iF Design Award ‘Winner’

Learn More
alpha 5 AI Processor 4K Gen7

Every scene can appear true to life

Enjoy incredibly sharp pictures and stunning sound, intelligently boosted by the α5 AI Processor Gen7.*

*Image quality dependent on source material.

HDR10 Pro

Shine a light on fine details

Enter a world where colour pops and brightness is fine-tuned for breathtaking views from HDR10 Pro.*

A split-screen close-up image of a man's face is shown in a purple-tinged, shadowy room. On the left, "SDR" in white text is shown and the image is blurry. On the right, "HDR10 Pro" in white text is shown and the image is clear and sharply defined.

*High Dynamic Range content required for this function.

Brightness Control

Bright in almost any light

Come day or night, Brightness Control detects the light in your room and balances the picture accordingly, for crisp and clear visuals.

AI Sound Pro

Lifelike sound perfected by AI

Hear sensational 9.1.2-channel virtual surround sound, mixed by AI Sound Pro and remastered for clarity, impact, and balance control.*

Sound optimised for your space

Hear balanced audio that fills your room, without being overpowering. Whether you're watching from an open-plan lounge or a cosy nook, AI Acoustic Tuning helps your entertainment sound just right.**

Impactful sound resonates

Amp up your experience. Dynamic Sound Booster takes advantage of AI processor refinements to provide powerful, impressive audio.

Sound balanced to what you watch

Hear audio optimised to the content on the screen. Adaptive Sound Control analyses audio in real-time to allow clear voices, cinematic effects, and dramatic musical scores.

*Sound quality dependent on source material.
**AI Acoustic Tuning must be activated through the AI Service menu.

FILMMAKER MODE™ & HDR10 Pro

Add more magic to movie night

Transform your home into a movie theatre. With FILMMAKER MODE™ and HDR10 Pro, you can enjoy movies as they were meant to be seen, with magnificently accurate colour and contrast.*

An image of a family sat on the floor of a low-lit living room by a small table, looking up at an LG TV mounted on the wall showing the Earth from space.

*High Dynamic Range content required for this function.

webOS 24

Home to your favourite content

Favourite streaming services are at your fingertips.* With so much content to choose from all in one place, everyone can find something great to enjoy.
Find out more

An image shows the webOS 24 home screen with Home Office, Game, Music, Home Hub, and Sports Categories. The bottom of the screen shows personalized recommendations under "Top picks for you."

*Internet connection, subscription and data charges may apply. Separate terms and privacy policy apply to Smart TV apps. Failure to accept the terms applying to an app may result in inability to use the app. Content, features and third party services will vary from time to time without notice. LG ThinQ AI account/s required.

webOS Re:New Program

Keep pace with the latest updates

Stay up to date with handy features and technologies through 4 webOS upgrades over 5 years*.

*The webOS Re:New Program supports a total of 4 upgrades over five years. Customers receive 5 versions of webOS including the version installed at purchase. Features are subject to change and some feature, application and service updates may vary by model.

Powerful Gameplay

Plunge into powerful play

Snatch the champion's title with immersive graphics from HGiG.* Play stays smooth with ALLM for enhanced high-speed action, and eARC helps ensure it all sounds amazing.

An image of LG TV showing a car racing game on the finish line, with the sign saying 'WIN!', as the player clenches on to the game joystick. ALLM, eARC, HGiG logo are place on the bottom left corner.

*HGiG compatible source content and enabled game device required.

Gaming Central

Easily switch up picture settings, without taking your eye off the game. Quickly change essential settings during play via the on-screen Game Dashboard and let Game Optimiser set the screen just how you like it.

An image of two gaming scenes. One shows an FPS game with the Game Dashboard appearing over the screen during gameplay. The other screen shows a dark, wintery scene with the Game Optimizer menu appearing over the game.

Unlock epic gaming titles

Dive into an amazing library of gaming titles and play almost instantly, with no downloads on GeForce NOW.*

An image of the Boosteroid home screen showing "Trine 4: The Nightmare Price" and another image of GeForce NOW home screen showing five different game thumbnails.

*Internet connection required. Subscriptions and data costs apply. Content, features and third party services will vary from time to time without notice. Compatible controller required.

WOW Interface

Easy and convenient interface

Turn convenience up a notch, with WOW Interface. Using your LG TV Remote, you can access the compatible LG Sound Bar* menu on the LG TV screen, making it easy to select sound modes and check the connection status.

WOW Interface

*For the full list of compatible TV and sound bar models, visit lg.com/au/wow-orchestra-interface

Key Feature

  • Vivid colour and remarkable detail with 4K HDR10 Pro.
  • Immerse yourself in a quality picture with the α5 AI Processor 4K Gen7.
  • Convenient smart features, including ThinQ AI, Chromecast Built-in, and Apple Airplay.
  • Home to popular streaming services, including Netflix, Apple TV+, Disney+, and LG Channels.
  • Cinema-worthy visuals and sound with FILMMAKER MODE™.
Print

Key Specs

  • Display Type

    4K UHD

  • Refresh Rate

    60Hz Native

  • Picture Processor

    α5 AI Processor 4K Gen7

  • HDR (High Dynamic Range)

    HDR10 / HLG

  • Audio Output

    20W

  • Speaker System

    2.0 Channel

  • TV Dimensions without Stand (WxHxD, mm)

    1121 x 651 x 57.1

  • TV Weight without Stand (kg)

    12.1

All Spec

PICTURE (DISPLAY)

  • Display Type

    4K UHD

  • Display Resolution

    4K Ultra HD (3,840 x 2,160)

  • Backlight Type

    Direct

  • Refresh Rate

    60Hz Native

PICTURE (PROCESSING)

  • Picture Processor

    α5 AI Processor 4K Gen7

  • AI Upscaling

    4K Upscaling

  • Dynamic Tone Mapping

    Yes

  • AI Brightness Control

    Yes

  • HDR (High Dynamic Range)

    HDR10 / HLG

  • FILMMAKER MODE ™

    Yes

  • Picture Mode

    9 modes (Vivid, Standard, Eco, Cinema, Sports, Game, Filmmaker, ISF Bright Room, ISF Dark Room)

GAMING

  • HGIG Mode

    Yes

  • Game Optimizer

    Yes (Game Dashboard)

  • ALLM (Auto Low Latency Mode)

    Yes

ACCESSIBILITY

  • High Contrast

    Yes

  • Gray Scale

    Yes

  • Invert Colors

    Yes

DIMENSIONS AND WEIGHTS

  • TV Dimensions without Stand (WxHxD, mm)

    1121 x 651 x 57.1

  • TV Dimensions with Stand (WxHxD, mm)

    1121 x 703 x 249

  • Packaging Dimensions (WxHxD, mm)

    1215 x 810 x 162

  • TV Stand (WxD, mm)

    739 x 249

  • TV Weight without Stand (kg)

    12.1

  • TV Weight with Stand (kg)

    13.2

  • Packaging Weight (kg)

    16.0

  • VESA Mounting (WxH, mm)

    200 x 200

BAR CODE

  • BAR CODE

    8806091896926

AUDIO

  • AI Sound

    AI Sound Pro (Virtual 9.1.2 Up-mix)

  • Clear Voice Pro

    Yes (Auto Volume Leveling)

  • LG Sound Sync

    Yes

  • Sound Mode Share

    Yes

  • Simultaneous Audio Output

    Yes

  • Bluetooth Surround Ready

    Yes (2 Way Playback)

  • Audio Output

    20W

  • AI Acoustic Tuning

    Yes

  • Audio Codec

    AC4, AC3(Dolby Digital), EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA, apt-X (Refer to manual)

  • Speaker Direction

    Down Firing

  • Speaker System

    2.0 Channel

CONNECTIVITY

  • HDMI Audio Return Channel

    eARC (HDMI 2)

  • Bluetooth Support

    Yes (v 5.0)

  • Ethernet Input

    1ea

  • Simplink (HDMI CEC)

    Yes

  • SPDIF (Optical Digital Audio Out)

    1ea

  • HDMI Input

    3ea (supports eARC, ALLM)

  • RF Input (Antenna/Cable)

    2ea

  • USB Input

    2ea (v 2.0)

  • Wi-Fi

    Yes (Wi-Fi 5)

SMART TV

  • Works with Apple Airplay2

    Yes

  • Operating System (OS)

    webOS 24

  • Family Settings

    Yes

  • ThinQ

    Yes

  • USB Camera Compatible

    Yes

  • Full Web Browser

    Yes

  • Intelligent Voice Recognition

    Yes

  • Magic Remote Control

    Built-In

  • Room to Room Share

    Yes (Receiver)

  • Smartphone Remote App

    Yes (LG ThinQ)

POWER

  • Power Supply (Voltage, Hz)

    AC 100~240V 50-60Hz

  • Standby Power Consumption

    Under 0.5W

ACCESSORIES INCLUDED

  • Remote

    Magic Remote MR24

  • Power Cable

    Yes (Detachable)

  • Remote Control Batteries

    Yes (AA x 2EA)

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