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LG 55NANO75UPA NanoCell 75 Series 55
LG 55NANO75UPA NanoCell 75 Series 55
LG 55NANO75UPA NanoCell 75 Series 55
LG 55NANO75UPA NanoCell 75 Series 55
LG

LG 55NANO75UPA NanoCell 75 Series 55" 4K Smart TV Alexa

★★★★★4.5 (263 reviews)
4KHDR

NanoCell color technology and webOS 6.0 smart features bring 4K streaming and gaming to your living room without the premium TV price.

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Overview

The LG 55NANO75UPA brings NanoCell display technology to a 55-inch 4K panel in a package aimed squarely at living room upgraders who want noticeably better color than budget LCD TVs without moving to OLED pricing. NanoCell works by embedding nano-sized particles in the LCD layer that absorb unwanted light wavelengths before they reach the viewer — the practical result is purer reds, greens, and blues with less color bleeding between adjacent pixels. Combined with the Quad Core Processor 4K and Active HDR (HDR10, HLG), the display renders streaming 4K content with strong color fidelity at a native 3840x2160 resolution. Filmmaker Mode is a standout addition at this price tier, disabling motion smoothing and post-processing to preserve the original cinematic look of films.

The smart platform is where this TV distinguishes itself for everyday usability. webOS 6.0 is fast, well-organized, and supports every major streaming service without needing an external stick or box. LG ThinQ AI brings both Google Assistant and Alexa on board — a genuine dual-assistant implementation, not just one with a button shortcut for the other. The Bluetooth Magic Remote with its pointer-style navigation makes browsing apps and menus significantly faster than a standard directional remote. For gamers, ALLM automatically drops into low-latency mode when a console is detected, and Game Optimizer lets you tune response time without navigating picture settings menus. The 60Hz panel is the honest limitation here — it's a great TV for streaming, casual gaming, and all-around family use, but households with current-gen consoles targeting 120fps will want to look at the higher NANO90 or QNED series.

Key Features

Real 4K NanoCell Display: Nano Colour, Nano Accuracy, Nano Bezel

webOS 6.0 & ThinQ AI with Bluetooth Magic Remote

Active HDR, Filmmaker Mode, Bluetooth Sound Ready

Gaming: ALLM, HGiG, Game Optimizer

Access hundreds of apps including; Netflix, YouTube, Apple TV+, Disney+, Prime Video, LG Channels and more

Specifications

Screen Size
55 inches
Display Type
Real 4K NanoCell
Resolution
3840 x 2160 (4K Ultra HD)
Refresh Rate
60Hz
Processor
Quad Core Processor 4K
HDR Support
Active HDR (HDR10, HLG), Filmmaker Mode
Smart Platform
webOS 6.0
AI / Voice
LG ThinQ AI, Google Assistant, Amazon Alexa
Remote
Bluetooth Magic Remote (included)
Gaming Features
ALLM, HGiG, Game Optimizer
HDMI Ports
3 (1 rear, 2 side)
USB Ports
2 (1 rear, 1 side)
Wireless
Wi-Fi, Bluetooth 5.0
Speaker System
2.0 Channel, 20W

Pros & Cons

👍 Pros

  • NanoCell display filter technology produces wider, cleaner color accuracy than standard LCD panels at this price tier, making HDR content and vivid streaming visuals noticeably more lifelike.
  • webOS 6.0 is a genuinely fast and well-organized smart TV platform with access to Netflix, YouTube, Apple TV+, Disney+, Prime Video, and LG Channels without any additional hardware.
  • ALLM and Game Optimizer automatically detect and optimize settings for connected consoles, removing the friction of manually switching picture modes during gaming sessions.
  • Filmmaker Mode preserves the original frame rate, color, and aspect ratio of theatrical content as the director intended — a rare feature at this price point.
  • Bluetooth 5.0 enables wireless audio connections to headphones or speakers without signal dropouts common in older Bluetooth implementations.

👎 Cons

  • The 60Hz native panel refresh rate is the most significant limitation for gaming households — PS5 and Xbox Series X 120fps output is not supported, capping the frame rate advantage of current-gen consoles.
  • Active HDR (HDR10 and HLG) coverage is solid, but the absence of Dolby Vision means some streaming platforms will deliver HDR in a less optimized format on this display.
  • The 20W 2.0 channel speaker system is modest — dialogue clarity is adequate but bass is thin, and most users will want to add a soundbar for a satisfying movie-watching experience.
  • NanoCell technology improves color purity but the panel is still LED-backlit LCD, meaning black levels and contrast ratio are constrained compared to OLED displays at higher price points.
  • Side-facing HDMI ports (2 of 3) are convenient for consoles but can create cable-management challenges for wall-mounted installations.

Frequently Asked Questions

NanoCell uses nano-sized particles to filter out impure wavelengths from the backlight, producing more accurate reds, greens, and blues than conventional LCD panels. In practical terms, colors look cleaner and more distinct — especially in wide-gamut HDR content. It's a real difference from standard IPS or VA panels, though it doesn't match OLED black levels or contrast.
Both are built in. The LG ThinQ AI system integrates Google Assistant and Amazon Alexa natively — you can use either voice assistant without a separate smart speaker. The Bluetooth Magic Remote is included and supports voice input directly.
The panel runs at a native 60Hz. LG includes Game Optimizer mode, ALLM (Auto Low Latency Mode — which automatically switches to game mode when a console is detected), and HGiG support for HDR game tone mapping. Input lag in Game Optimizer mode is low for a 60Hz display, but the 60Hz ceiling means it won't take advantage of 120fps output from newer consoles.
There are 3 HDMI ports total — one on the rear and two on the side for easier console access. Check LG's spec sheet for eARC support on this specific model, as eARC availability varied across the NANO75 production run.
Yes. The TV responds to standard IR commands and is compatible with CEC-enabled HDMI devices. The Magic Remote (included) adds pointer navigation and voice control, but the TV is fully functional without it.

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