
TCL 55S551G 55-Inch 4K Google Smart TV (2024)
Brilliant 4K Google TV with Dolby Vision, Dolby Atmos, and AI-powered picture optimization at an accessible price.
*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.
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Overview
Key Features
4K UltraHD Resolution - Experience incredible detail with 4X the resolution of 1080p Full HDTVs.
High Brightness LED Backlight - Enjoy a brilliant picture in any room.
TCL AIPQ Processor with Deep Learning AI - Powerful, advanced processor intelligently optimizes the color, contrast, and clarity for an unrivaled 4K HDR experience.
Game Accelerator 120 - With up to fast 120 VRR, enjoy more responsive gameplay without lag, designed to keep you at the top of any leaderboard.
HDR PRO+ with Dolby Vision, HDR10+, HDR10, & HLG - Enjoy enhanced contrast, accurate colors and fine details utilizing all the most advanced HDR formats.
Auto Game Mode (ALLM) - Automatically enables game mode for the lowest possible input lag and latency for an unmatched gaming performance.
Dolby Atmos Audio - Advanced spatial audio processing found in movies, TV shows, and video games.
Enhanced Dialogue Mode - Audio Setting for better clarity and intelligibility in movies, TV shows, and video games.
DTS Virtual:X - Advanced audio post-processing for your everyday content offering an immersive 3D sound, all from just your TV speakers.
Bluetooth Personal Audio - Pair your favorite Bluetooth headphones to the TV for a private listening experience.
Specifications
Pros & Cons
👍 Pros
- Supports all major HDR formats including Dolby Vision and HDR10+, so content always plays in its best available quality.
- TCL AIPQ Processor with deep learning AI actively optimizes color, contrast, and clarity scene by scene.
- Game Accelerator 120 with VRR and Auto Game Mode delivers responsive, low-lag performance for console gaming.
- Google TV platform provides a unified content discovery interface and built-in Google Assistant.
- Bluetooth Personal Audio lets you watch privately without a separate transmitter or adapter.
👎 Cons
- LED backlight without local dimming zones limits the contrast and black levels compared to mini-LED or OLED panels.
- Built-in TV speakers, while enhanced by Dolby Atmos processing, lack the bass response and separation of a dedicated sound system.
- The bezel-less design offers minimal physical protection for the panel edges during handling or mounting.
- Motion Rate 240 is a marketing figure—the native panel refresh rate is lower, supplemented by motion processing.