TCL

TCL 75S450G 75-Inch S4 4K LED Smart Google TV

4.0 (34 reviews)
4K1080pHDRHDR10

TCL's 75-inch S4 delivers massive 4K HDR entertainment with Google TV, Dolby Vision, and Dolby Atmos at a compelling price point.

$745.89*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 29, 2026.Price and availability are subject to change.

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Overview

The TCL 75-Inch Class S4 4K LED Smart TV is designed for viewers who want a big-screen experience without the premium price tag. Its 4K Ultra HD resolution delivers four times the detail of standard 1080p, and the inclusion of HDR PRO with Dolby Vision, HDR10, and HLG ensures that compatible movies, shows, and games display richer contrast, more vibrant colors, and finer highlight detail. The Motion Rate 240 system with MEMC frame insertion works to smooth out fast-moving content, which benefits sports viewing and action sequences.

On the smart TV side, Google TV serves as the operating system, offering a content-first interface that pulls recommendations from across your streaming subscriptions. Chromecast is built in for easy casting from mobile devices, and the Google Assistant enables voice-controlled search and smart home integration. For home theater setups, the eARC-equipped HDMI port passes lossless audio formats to a compatible receiver or soundbar, while DTS Virtual:X processing enhances the TV's built-in speakers with simulated surround sound. The FullView metal bezel-less design keeps the focus on the screen, and Auto Game Mode ensures console gamers get the lowest latency without manually adjusting settings. At 75 inches, this TV fills a room with cinematic scale while keeping the feature set well-rounded for everyday entertainment.

Key Features

4K Ultra HD Resolution: Experience incredible detail with 4X the resolution of 1080p Full HDTVs.

Motion Rate 240 with MEMC Frame Insertion: Combines multiple motion enhancement technologies for exceptional motion clarity

HDR PRO (Dolby Vision, HDR10, & HLG): Enjoy enhanced contrast, accurate colors and fine details utilizing all the most advanced HDR formats.

Google TV Smart OS: The entertainment you love. Google TV brings your favorite movies, shows, and live shows together.

Auto Game Mode (ALLM): Automatically enables game mode for the lowest possible input lag and latency for an unmatched gaming performance.

FullView Metal Bezel-less Design: Elegant edge-to-edge glass design for a modern design that blends seamlessly into any home.

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.

3 HDMI Inputs (One with eARC): Three high-speed HDMI inputs for the best connection to gaming consoles, set-top boxes, AV receiver and more.

Chromecast Built-in: Works with the streaming apps you know and love: Enjoy TV shows, movies, videos, songs, games, sports and more from thousands of apps.

Specifications

Brand
TCL
Model
75S450G
Screen Size
75 inches
Resolution
4K Ultra HD (3840 x 2160)
Display Type
LED
HDR
HDR PRO (Dolby Vision, HDR10, HLG)
Motion Rate
240 with MEMC Frame Insertion
Audio
Dolby Atmos, DTS Virtual:X
Smart TV Platform
Google TV
Game Mode
Auto Game Mode (ALLM)
HDMI Inputs
3 (1 with eARC)
Wireless
Bluetooth, Chromecast Built-in
Design
FullView Metal Bezel-less

Pros & Cons

👍 Pros

  • Large 75-inch 4K display provides an immersive big-screen experience at a budget-friendly price
  • Google TV platform offers a well-organized interface with broad app support and Chromecast built-in
  • Comprehensive HDR support with Dolby Vision, HDR10, and HLG covers virtually all HDR content sources
  • Auto Game Mode with ALLM reduces input lag automatically when gaming consoles are connected
  • FullView metal bezel-less design gives the screen a clean, modern appearance

👎 Cons

  • LED backlighting lacks the local dimming precision needed for deep blacks in dark room viewing
  • Native audio, while enhanced by DTS Virtual:X, will likely need a soundbar to match the large screen experience
  • Motion Rate 240 uses processing interpolation rather than a true 240Hz native panel refresh rate
  • 4K at this price tier may show limited peak brightness compared to higher-end QLED or OLED models

Frequently Asked Questions

The 75S450G supports HDR PRO with Dolby Vision, HDR10, and HLG, covering all major HDR formats for enhanced contrast, color accuracy, and detail in compatible content.
Yes, it features Auto Game Mode (ALLM) that automatically detects when a gaming console is connected and switches to the lowest input lag settings for responsive gameplay.
It has three HDMI inputs, one of which supports eARC for passing high-quality audio formats like Dolby Atmos to a compatible soundbar or AV receiver.
Yes, the 75S450G supports Bluetooth Personal Audio, allowing you to pair Bluetooth headphones directly to the TV for private listening without disturbing others.
It runs Google TV, which aggregates content from your streaming subscriptions into a unified interface with personalized recommendations, voice search via Google Assistant, and Chromecast built-in for casting from your phone or laptop.