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Product Details

50" 4K UHD α7 AI Processor Gen8 webOS 25 + ThinQ AI HDR10 + HLG HDR10 Pro VRR + ALLM + HGiG AirPlay 2 + Cast 5-Year Updates (Re:New)

LG 50" UA77 Series 4K UHD AI Smart TV (2025)

A space-efficient 50" 4K HDR smart TV platform with α7 AI optimization, webOS 25, and gaming-ready motion support

The LG UA77 50" Series (2025) delivers crisp 4K HDR performance in a footprint tailored for bedrooms, apartments, and smaller living rooms—without compromising on platform intelligence. Powered by the α7 AI Processor 4K Gen8, the UA77 continuously optimizes picture and sound in real time, while HDR10 Pro and Dynamic Tone Mapping enhance contrast and highlight structure for more cinematic realism. webOS 25 with ThinQ AI simplifies content discovery across leading streaming apps and built-in LG Channels, providing 350+ free channels for instant live viewing. For gaming, VRR and ALLM support smoother motion and lower perceived latency, complemented by HGiG Mode and Game Optimizer controls for more predictable HDR behavior and fast on-screen tuning. With Alexa, Google Assistant, Apple Home, AirPlay 2, and Google Cast integration, UA77 also functions as a modern smart-home endpoint. The Re:New platform program extends lifecycle value with 5-year software updates for long-term confidence.

✔ 50" 3840×2160 4K UHD ✔ α7 AI Processor 4K Gen8 ✔ HDR10 Pro + HDR10/HLG ✔ webOS 25 + LG Channels (350+ free) ✔ VRR + ALLM + FreeSync + HGiG ✔ 5-year software updates (Re:New)

Compact-Scale 4K HDR with AI Refinement, Smart Streaming, and Gaming Optimization

UA77 is engineered around high-impact fundamentals: 4K clarity, HDR contrast enhancement, an updated smart platform, and responsive gaming support. The α7 AI Processor 4K Gen8 drives real-time picture and sound optimization, while HDR10 Pro plus Dynamic Tone Mapping help preserve fine gradations in shadows and highlights. webOS 25 consolidates apps, personalization, and LG Channels for subscription-free live content. For gameplay, VRR and ALLM support smoother motion and reduced latency, while HGiG Mode and Game Optimizer streamline HDR gaming configuration for consoles and cloud services.

50"
Display
Efficient room fit
α7 Gen8
AI Processor
Scene optimization
HDR10 Pro
HDR
More depth
VRR/ALLM
Gaming
Smoother play

Gaming features and cloud gaming availability can vary by region, service, and device compatibility. Software update eligibility follows LG’s Re:New platform program terms.

Core Capabilities

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α7 AI Processor 4K Gen8 for Real-Time Picture and Sound Optimization

The UA77 leverages LG’s α7 AI Processor 4K Gen8 to refine brightness, detail, and scene balance continuously, while AI-driven audio tuning helps tailor output for the content you’re watching.

Processorα7 AI Processor 4K Gen8
OptimizationAI picture + AI sound
Resolution3840 × 2160 (4K UHD)
Panel TypeLCD

HDR10 Pro + Dynamic Tone Mapping for Refined Contrast and Detail

HDR10 Pro enhances perceived contrast and color realism, while Dynamic Tone Mapping analyzes each scene to better preserve highlight structure and shadow detail. FILMMAKER MODE maintains original cadence for director-intent playback.

HDR FormatsHDR10 • HLG
HDR EnhancementHDR10 Pro
Scene ProcessingDynamic Tone Mapping
Creator ModeFILMMAKER MODE™
🎞️
🕹️

Game Optimizer with VRR, ALLM, FreeSync, and HGiG

VRR and ALLM support smoother gameplay and more responsive control, while HGiG Mode helps align HDR tone mapping for games. Game Optimizer centralizes tuning for quick adjustment across genres.

Refresh Rate60 Hz
Motion/GamingVRR • ALLM
SyncFreeSync™
HDR GamingHGiG Mode

webOS 25 + ThinQ AI with LG Channels and Multi-Assistant Smart Control

webOS 25 provides a modern interface with personalization and ThinQ AI intelligence, plus built-in LG Channels for free live content. Integrated support for Alexa, Google Assistant, and Apple Home, along with AirPlay 2 and Google Cast, enables frictionless control and sharing across devices.

Smart PlatformwebOS 25 with ThinQ AI
Free ContentLG Channels (350+ free channels)
CastingAirPlay 2 • Google Cast
Updates5-year software updates (Re:New)
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Key Features

A future-ready 50" smart TV platform built for 4K HDR clarity, responsive gaming, and smart-home interoperability

🖼️

50" 4K UHD Clarity

Visuals

3840 × 2160 resolution delivers sharp detail in a space-efficient size for everyday rooms.

4K UHD50"HDR-ready
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α7 AI Processor 4K Gen8

AI

Automatic scene-level tuning optimizes picture and sound in real time for consistent output.

AI pictureAI soundGen8

HDR10 Pro + Dynamic Tone Mapping

HDR

Improves contrast realism and detail retention across bright highlights and dark scenes.

HDR10 ProHDR10/HLGDTM
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Game Optimizer (VRR/ALLM/HGiG)

Gaming

Supports smoother motion and lower perceived latency with HDR gaming alignment tools.

VRRALLMHGiG
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webOS 25 + LG Channels

Smart

Modern smart interface with ThinQ AI personalization plus 350+ free live channels built in.

webOS 25ThinQ AIFree channels
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AirPlay 2 + Cast + Voice Assistants

Ecosystem

Streamlined sharing and control across iOS/Android with support for Alexa, Google, and Apple Home.

AirPlay 2CastAlexa/Google

Technical Specifications

Display & Video
Display Size50"
Panel TypeLCD
Resolution3840 × 2160 (4K UHD)
HDR SupportHDR10 • HLG
HDR EnhancementHDR10 Pro
Refresh Rate60 Hz
FILMMAKER MODE™Yes
Processing, Gaming & Smart
Processorα7 AI Processor 4K Gen8
Gaming FeaturesVRR • ALLM • FreeSync™ • HGiG Mode
Smart PlatformwebOS 25 with ThinQ AI
Software Updates5-year updates (Re:New platform program)
Cloud GamingGeForce NOW • Xbox Cloud Gaming support
PersonalizationPicture & Sound Wizard
Connectivity & Wireless
HDMI3 × HDMI
RF Input1 × Antenna
USB2 × USB-A 2.0
Digital Audio Out1 × Optical (TOSLINK)
WirelessWi-Fi 5 (802.11ac) • Bluetooth 5.1
EthernetLAN (wired)
CastingAirPlay 2 • Google Cast
Voice AssistantsAlexa • Google Assistant • Apple Home • LG ThinQ
Audio, Power & Physical
Audio2-channel built-in speakers
Power102 W typical • <0.5 W standby
VESA Mount200 × 300 mm
Dimensions (with Stand)43.7 × 27.5 × 10.1 in (111 × 69.8 × 25.7 cm)
Dimensions (without Stand)43.7 × 25.4 × 2.7 in (111 × 64.5 × 6.9 cm)
Weight (with Stand)19.4 lb (8.8 kg)
Weight (without Stand)19.2 lb (8.7 kg)
Packaging49 × 30 × 5 in (approx. 25 lb)
WarrantyLimited 1-Year Manufacturer Warranty
UPC195174102442

What’s in the Box

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LG UA77 50" 4K HDR Smart LED TV (2025)

4K UHD smart TV with α7 AI Gen8 processing, webOS 25, HDR10 Pro, and Game Optimizer tools

🎙️
Remote + Batteries

Remote control with built-in microphone and 2× AAA batteries

🔌
Power Cable

AC power connection

🧱
Stand

Included feet/stand hardware for tabletop placement

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Warranty

Limited 1-Year Manufacturer Warranty

Premium Everyday Viewing in a Space-Efficient 4K HDR Platform

The LG UA77 50" Series (2025) is engineered for high-impact performance in smaller spaces, delivering 4K HDR clarity supported by the α7 AI Processor 4K Gen8. HDR10 Pro with Dynamic Tone Mapping enhances contrast realism, while webOS 25 with ThinQ AI consolidates streaming and free live content via LG Channels. For gaming, VRR/ALLM/HGiG tools support smoother play and streamlined HDR tuning. With multi-assistant smart-home compatibility and 5-year software updates through LG’s Re:New platform program, UA77 provides a durable, modern entertainment foundation.

50" 4K UHD α7 AI Gen8 HDR10 Pro webOS 25 VRR/ALLM 5-year updates

 

 

Included in the Box