LG 43NU840B6LA 43″ NANO 4K AI Smart TV (Black)

LG 43NU840B6LA 43″ NANO 4K AI Smart TV is a cutting-edge, compact home entertainment display designed to deliver vivid color accuracy, refined clarity, and advanced AI-driven features for modern households. Crafted with a Linear Flow Design featuring ultra-thin bezels and a sleek dark finish, it blends seamlessly into living rooms, bedrooms, or office setups while providing an immersive viewing experience.

Powered by LG’s Alpha AI Processor 4K paired with Nano Detail Enhancer technology, the 43NU840B6LA refines textures, contrast, and depth frame by frame to reveal true 4K clarity. Running on the latest webOS smart platform with AI Hub integration—featuring multi-AI search with Google Gemini and Microsoft Copilot—it offers seamless content recommendations, robust security via LG Shield, and spatial Virtual Sound processing for cinema-like home audio.

Key Features

• 43-Inch NANO 4K Display – Delivers ultra-high-definition 4K resolution (3840 x 2160) with vibrant NanoCell color purity and fine contrast.
• Nano Detail Enhancer & Alpha AI Processor – Intelligent processing analyzes every frame to boost texture, contrast, and three-dimensional depth.
• Next-Gen webOS & AI Hub – User-friendly smart interface backed by AI Concierge, customized user profiles, and multi-AI assistant integration.
• HDR10 Pro Technology – Optimizes scene-by-scene highlights and shadows for greater contrast and lifelike depth across movies and games.
• Virtual Sound & AI Sound Processing – Multi-channel virtual audio processing automatically scales up sound outputs to create immersive room-filling audio.
• Linear Flow Modern Design – Ultra-slim frame and solid, refined finish maximize screen area while matching contemporary room decors.
• Robust Smart Connectivity & LG Shield – Built-in Wi-Fi, Bluetooth, HDMI, and USB connectivity protected by LG Shield data security.

Specifications

Feature	Specification
Model	43NU840B6LA
Screen Size	43 Inches
Display Type	NANO 4K UHD LED
Resolution	4K Ultra HD (3840 x 2160)
Picture Processor	Alpha AI Processor 4K
HDR Format	HDR10 Pro, HLG
Operating System	LG webOS (with AI Hub & LG Shield)
Smart AI Support	Voice Control, Multi-AI Assistant Search (Gemini & Copilot)
Audio Output	20 Watts (Virtual Multi-Channel AI Sound)
Wireless Connectivity	Wi-Fi, Bluetooth, Screen Share / Apple AirPlay
Physical Ports	3 x HDMI, USB, LAN (Ethernet), Optical Digital Audio Out
Tuner Support	Built-in Digital Receiver (DVB-T2/S2)
Dimensions (WxDxH)	Approx. 967 x 57 x 564 mm (Without Stand)

Common FAQs

Is the LG 43NU840B6LA a true 4K TV?

Yes, it offers native 4K Ultra HD resolution (3840 x 2160 pixels), which provides four times the pixel density and detail of standard Full HD displays.

How does the Nano Detail Enhancer improve picture quality?

The Nano Detail Enhancer works with the Alpha AI processor to analyze images frame-by-frame, sharpening textures, refining shadows, and boosting contrast at a nano level to produce more realistic, lifelike depth.

What AI features are integrated into this model?

The 43NU840B6LA features LG’s AI Hub, which includes AI Concierge for tailored content recommendations, voice-controlled search using multi-AI models, and personalized user home pages.

Can I connect wireless headphones or soundbars to this TV?

Yes, the TV features built-in Bluetooth and LG Wireless Sound Sync, allowing you to wirelessly connect soundbars, external speakers, or Bluetooth headphones without running audio cables.

Is this TV suitable for wall mounting?

Yes, the 43NU840B6LA features a standard VESA mount pattern on the back panel, making it compatible with standard fixed, tilt, or full-motion 43-inch wall mounts.