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75 Inch LG UHD AI UA84 4k Smart TV 2025

Estimated delivery dates: Dec 8, 2025 - Dec 10, 2025
Original price was: $1,849.00.Current price is: $1,649.00.
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Key Features
  • Breathtaking colour and detail with 4K HDR10 Pro
  • 4K picture quality, upscaled visual and surround sound from the alpha 7 4K AI Processor Gen8
  • New AI button, voice controls, drag and drop functions on the AI Magic Remote
  • Enjoy 4K Super Upscaling enhanced resolution, brightness, and clarity
  • High resolution on a massive Ultra Big TV screen
75UA8450PSA
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Description

See finer details with absolute clarity

See finer details with absolute clarity

Meet the powerful and smart alpha 7 AI Processor Gen8

With significant improvements to performance, faster processing from alpha 7 AI Processor Gen8 now delivers 4K picture quality with much better sharpness and depth than before.

4K Super Upscaling brings every frame to life

LG's powerful processor boosts the resolution to the original quality. Enjoy 4K Super Upscaling enhanced resolution, brightness, and clarity.

HDR10 Pro

Vibrant colors and brightness takes the screen resolution to new heights. Jump into elevated image quality with sharper contrast.

The next generation of LG AI TV

AI Magic Remote completes the AI experience

Control your TV easily with AI magic remote — no extra device needed! With a motion sensor and scroll wheel, point and click to use it like an air mouse or simply speak for voice commands.

*AI Magic Remote’s design, availability and functions may vary by region and supported language, even for the same model.

*Some features may require an internet connection.

*AI Voice Recognition is only provided in countries that support NLP in their native language.

AI Voice ID

LG AI Voice ID recognizes each user's unique voice signature and offers personalized recommendations the moment you speak.

*Reduced or limited content may be shown depending on region and network connectivity.

*Voice ID support may vary by region and country and is available on OLED, QNED, NanoCell, and UHD TVs released from 2024 onwards.

*It works only with apps that support the Voice ID account.

AI Search

Ask your TV anything. Built-in AI recognizes your voice and swiftly provides personalized recommendations to your requests. You can also get additional results and solutions with Microsoft Copilot.

*AI Search is available on OLED, QNED, NanoCell, and UHD TVs released from 2024 onwards.

*The US and Korea use the LLM Model.

*Internet connection required.

AI Chatbot

Interact with the AI Chatbot through your AI Magic Remote and address all concerns from configuring settings to troubleshooting. AI can understand user intent and will provide immediate solutions.

*Internet connection required.

*AI Chatbot available in countries supporting NLP in their native language.

*It is possible to link the AI chatbot to customer service.

AI Concierge

One short press on the AI button on your remote opens up your AI Concierge which provides customized keywords and recommendations based on your search and watching history.

*Supported menus and apps may vary by country.

*Menus displayed may be different upon release.

*Keyword recommendations vary according to the app and time of day.

AI Picture Wizard

Advanced algorithms learn your preferences by going through 1.6 billion image possibilities. Based on your selections, your TV creates a personalized picture just for you.

AI Sound Wizard

Choose the audio you like from a selection of sound clips. From 40 million parameters, AI creates a tailored sound profile tuned to your preferences.

New upgrade every year for 5 years with award-winning webOS Re:New Program

Get the benefits from the latest features and software with annual upgrades. A CES Innovation Awardee for the cybersecurity category, feel safe knowing webOS keeps your privacy and data, secure.

*webOS Re:New Program applies to 2025 OLED/QNED/NanoCell/UHD TVs.

*The webOS Re:New Program supports a total of four upgrades over five years, the threshold is the pre-installed version of webOS, and upgrade schedule varies from month-end to year-start.

*Updates and the schedule to some features, applications, and services may vary by model and region.

*Upgrades available for 2022 OLEDs and 2023 UHD and above models.

Experience what LG AI TV can do for you!

AI Voice ID

AI Search

AI Chatbot & AI Picture/Sound Wizard

AI Concierge

Home Hub, the all-in-one platform for your smart home

Seamlessly manage various LG home appliances, alongside your Google Home devices and more. Experience the ultimate convenience of controlling your whole home through a single, intuitive dashboard.

*LG supports ‘Matter’ Wi-Fi devices. ‘Matter’ supported services and features may vary depending on the connected devices. Initial connection for ThinQ and Matter should be via ThinQ mobile app.

*Use of the hands-free voice function without a remote control is only possible with the alpha 9 AI Processor and alpha 11 AI Processor. It may vary depending on products and regions.

AI Sound Pro fine-tunes your sound for impact

AI Clear Sound

Precision tone correction enhances sound clarity for an exceptional audio experience.

*AI Clear Sound must be activated through the Sound Mode menu.

*Sound may vary according to the listening environment.

Enrich your sound with LG TV and LG Soundbar

WOW Orchestra, immersive sound through perfect synergy

LG UHD TVs and LG Soundbars are the perfect match, made to work harmoniously together to provide multi-surround sound environments.

*Soundbar can be purchased separately. 

*Soundbar Mode Control may vary by model.

*Please note that the service may not be available at the time of purchase. A network connection is required for updates.  

*The soundbar models compatible with the TV may vary by region and country.

*LG TV remote usage is limited to certain features only.

Ultra Big TV

See all your favorite films, sports, and games on LG Ultra Big TV. Dive into high resolution on a super-scale screen.

*UA84 comes in a maximum of 86 inches and inches may vary by region.

Slim Design

Add a modern touch with a sleek design that blends into your space gracefully.

*Slim Design applies to 65/55/50/43 inches of UA84.

Maximize the fun, use multiple screens with Multi View

Make the most of your TV with Multi View. Mirror your devices through Google Cast and AirPlay. Split your screen into two separate views for seamless multi-screen entertainment.

*Picture and sound settings on both screens are the same.

*Apple, the Apple logo, Apple TV, AirPlay and HomeKit are trademarks of Apple Inc., registered in the U.S. and other countries.

*Support for AirPlay 2, HomeKit, and Google Cast may vary by region, and language.

Stream a variety of content. Free.

LG's exclusive streaming service, LG Channels, puts a wide selection of live and on-demand channels at your fingertips for free.

*Available content and apps may vary by country, product, and region.

Cost-free. Contract-free. Cable-free.

All you need to do is tune in and start watching without worrying about hidden costs or installing a set-top box.

Gaming Portal turns your TV into the ultimate gaming hub

Play thousands of games directly on your LG TV with access to GeForce NOW, Amazon Luna, Blacknut, Boosteroid app! Enjoy a wide variety of gaming experiences- from AAA titles with gamepad to casual games playable with your remote.

*Support for the Gaming Portal may vary by country.

*Support for cloud gaming services and games within Gaming Portal may vary by country.

*Some gaming services may require a subscription and gamepad.

Powerful Gameplay

Experience peak gaming with VRR. Get your game on without lag hindering your performance.

Ambient FILMMAKER MODE

Experience cinema as the director intended with FILMMAKER MODE with Ambient Light Compensation that adapts to surroundings and keeps visuals as close as possible to its original form.

*Ambient FILMMAKER MODE is a trademark of UHD Alliance, Inc.

*Ambient FILMMAKER MODE auto starts on AppleTV+ and Amazon Prime video app.

*The images above in this product detail page are for illustrative purposes only. Refer to the gallery images for a more accurate representation.

*All images above are simulated.

*Service availability varies by region and country.

*Personalized services may vary depending on the policies of the 3rd party application.

Key Specs

Display Type

4K OLED

Refresh Rate

60Hz Native

Picture Processor

α7 AI Processor 4K Gen8

HDR (High Dynamic Range)

HDR10 / HLG

TV Dimensions without Stand (WxHxD)

1668 x 960 x 59.8

TV Weight without Stand

23.5

All specs

ACCESSIBILITY

Gray Scale

Yes

High Contrast

Yes

Invert Colors

Yes

ACCESSORIES INCLUDED

Remote

Magic Remote MR25

Power Cable

Yes (Attached)

AUDIO

AI Sound

α7 AI Sound Pro (Virtual 9.1.2 Up-mix)

AI Acoustic Tuning

Yes

Audio Codec

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

Audio Output

20W

Bluetooth Surround Ready

Yes (2 Way Playback)

Clear Voice Pro

Yes (Auto Volume Leveling)

LG Sound Sync

Yes

Simultaneous Audio Output

Yes

Sound Mode Share

Yes

Speaker Direction

Down Firing

Speaker System

2.0 Channel

WOW Orchestra

Yes

BROADCASTING

Analog TV Reception

Yes

Digital TV Reception

DVB-T2/T (Terrestrial), DVB-C (Cable) / ISDB-T (Terrestrial, only Philippines)

CONNECTIVITY

Bluetooth Support

Yes (v 5.0)

Ethernet Input

1ea

HDMI Audio Return Channel

eARC (HDMI 2)

HDMI Input

3ea (supports eARC, ALLM)

RF Input (Antenna/Cable)

1ea

Simplink (HDMI CEC)

Yes

SPDIF (Optical Digital Audio Out)

1ea

USB Input

2ea (v 2.0)

Wi-Fi

Yes (Wi-Fi 5)

DIMENSIONS AND WEIGHTS

Packaging Dimensions (WxHxD, mm)

1875 x 1150 x 175

Packaging Weight (kg)

32.1

TV Dimensions without Stand (WxHxD, mm)

1668 x 960 x 59.8

TV Dimensions with Stand (WxHxD, mm)

1668 x 1031 x 344

TV Stand (WxD, mm)

1546 x 344

TV Weight without Stand (kg)

23.5

TV Weight with Stand (kg)

24

VESA Mounting (WxH, mm)

300 x 300

GAMING

Game Optimizer

Yes (Game Dashboard)

ALLM (Auto Low Latency Mode)

Yes

HGIG Mode

Yes

VRR (Variable Refresh Rate)

Yes (Up to 60Hz)

PICTURE (DISPLAY)

Backlight Type

Direct

Display Resolution

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

Display Type

4K UHD

Refresh Rate

60Hz Native

PICTURE (PROCESSING)

AI Upscaling

4K Super Upscaling

Auto Calibration

Yes

Dynamic Tone Mapping

Yes

FILMMAKER MODEâ„¢

Yes

HDR (High Dynamic Range)

HDR10 / HLG

Picture Mode

10 modes

Picture Processor

α7 AI Processor 4K Gen8

POWER

Power Supply (Voltage, Hz)

AC 100~240V 50-60Hz

Standby Power Consumption

Under 0.5W

SMART TV

AI Chatbot

Yes

Full Web Browser

Yes

Google Cast

Yes

Google Home / Hub

Yes

Home Hub

Yes

Intelligent Voice Recognition

Yes

Magic Remote Control

Built-In

Operating System (OS)

webOS 25

Smartphone Remote App

Yes (LG ThinQ)

USB Camera Compatible

Yes

Voice ID

Yes

Works with Apple Airplay

Yes

Works with Apple Home

Yes

LG

LG’s philosophy revolves around people, sincerity, and sticking to the fundamentals. It is to understand our customers and to offer optimum solutions and new experiences through ceaseless innovation, thus helping our customers lead better lives.

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