LG OLED55GXPUA 55" GX Series 4K Smart OLED TV

Name: LG OLED55GXPUA 55" GX Series 4K Smart OLED TV
Brand: LG
SKU: OLED55GX

★★★★★4.4 (172 reviews)

4KUHD

LG's gallery-design OLED delivers pixel-perfect 4K picture quality that disappears into your wall like art when you're not watching.

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Overview

The LG OLED55GX is built around a simple premise: a premium television should look as good turned off as it does on. The gallery design achieves this by eliminating the bezel bulk and stand legs of conventional TVs, letting it mount flush to the wall like a framed canvas. But the form factor is secondary to the picture — OLED technology means each pixel generates its own light and can switch off completely, producing blacks that are indistinguishable from an unlit room. Combined with LG's wide color gamut panel and the α9 Gen 3 intelligent processor handling real-time upscaling and HDR tone mapping, the GX produces images that feel three-dimensional rather than flat.

The smart platform is powered by LG's ThinQ AI with built-in Alexa, which means voice control, streaming app access, and smart home integration are all native — no external dongle or hub required. The α9 Gen 3 processor doesn't just upscale content; it applies scene-by-scene noise reduction and adjusts picture settings dynamically based on what's on screen. For everyday viewers, this translates to a TV that looks right without manual calibration across every type of content — sports, movies, games, and streaming all benefit. HDMI inputs support 4K HDR content and gaming-focused features including Variable Refresh Rate, making this a serious option for both home theater and console gaming setups.

Key Features

LG Electronics 55 Gallery 4K UHD ThinQ AI OLED TV W A9 Gen 3 Intelligent Processor

Specifications

Screen Size

55 inches

Display Technology

OLED

Resolution

4K UHD

Smart TV Features

ThinQ AI

Processor

A9 Gen 3 Intelligent Processor

Series

GX Series

Pros & Cons

👍 Pros

Self-lit OLED pixels deliver absolute black levels and infinite contrast that no LED backlit TV can match — shadows look like real darkness, not dark gray.
Gallery flush-mount design eliminates the visual bulk of typical wall-mounted TVs, making it a genuinely attractive room element even when off.
α9 Gen 3 processor handles real-time upscaling and HDR tone mapping, so everything from streaming 1080p to native 4K looks optimized.
Built-in Alexa removes the need for a separate smart home hub for basic TV and device control.
Wide color gamut and OLED accuracy make it suitable for color-critical home cinema viewing with no calibration required out of the box.

👎 Cons

No stand included — this TV is designed exclusively for wall mounting, which adds installation cost and effort upfront.
OLED panels carry a residual risk of permanent image retention with prolonged static content, like news tickers or sports scoreboards displayed for many hours.
At 55 inches, the GX is on the smaller end for a flagship gallery display — larger rooms may feel under-screened.
Premium positioning means a higher price than comparable LED TVs with similar smart features, which may be hard to justify for casual viewers.

Frequently Asked Questions

What makes the GX Series different from LG's other OLED TVs?

The GX is specifically designed to hang flush against the wall — its gallery design means almost no gap between the TV and the wall surface, so it looks like a framed piece of art rather than a screen mounted in a room. The picture quality is the same class as LG's top-tier OLEDs, but the form factor is the differentiator.

Does this TV work with Alexa and Google Assistant?

Yes — Alexa is built directly into the TV, so you can control it with voice commands without a separate Echo device. LG's ThinQ AI platform also supports Google Assistant. For most people, this means one fewer remote or smart home hub to manage.

Is the α9 Gen 3 processor a meaningful upgrade for everyday viewing?

For most content it handles upscaling and noise reduction well enough that standard HD streaming looks noticeably cleaner than on budget TVs. Where it really earns its keep is in processing 4K HDR content — it adjusts tone mapping in real time, so HDR highlights don't clip and shadow detail stays visible.

How does the GX handle gaming inputs?

It supports HDMI 2.1 features including 4K at higher refresh rates and Variable Refresh Rate (VRR), which reduces screen tearing in supported games. Input lag in Game Mode is competitive with dedicated gaming monitors at this screen size.

Is this TV practical for a standard wall mount, or does it require a special bracket?

The GX is designed for wall mounting specifically — LG sells a matching gallery-style wall mount, but standard VESA-compatible mounts also work. It is not intended to sit on a TV stand, as there's no included stand base in the box.