TCL

TCL 55S21 55-Inch 4K Smart TV with Mount

3.5 (9 reviews)
4K

Get 4K HDR picture quality, Dolby Digital Plus audio, and a free wall mount included with the TCL 55S21 smart TV.

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Overview

The TCL 55S21 is a 55-inch 4K Ultra HD Smart TV that combines HDR support with Dolby Digital Plus audio to deliver an enhanced home entertainment experience. The 4K resolution produces sharp, detailed images across the large screen, while HDR processing expands the contrast and color range on compatible content from streaming services and media players. With four HDMI inputs — including one with ARC support — it accommodates a gaming console, streaming stick, Blu-ray player, and soundbar simultaneously without constant cable swapping.

A notable inclusion with this model is a free wall mount in the box, which saves buyers the cost and hassle of sourcing one separately. It is important to note that a traditional base stand is not provided, so the wall mount or a third-party stand is necessary. The TV supports both Amazon Alexa and Google Assistant for voice-controlled operation, and built-in Wi-Fi enables direct access to streaming apps. The 60Hz refresh rate handles standard content well, though viewers who watch a lot of live sports or play fast-paced games may notice the limitations compared to higher refresh rate panels.

Key Features

Free wall mount: To simplify the mounting process, the rear panel of the TV comes with the necessary screw holes to accept an industry standard VESA mount (Base not included and minor scratches on frame)

Stunning 4K Ultra HD: 4K resolution delivers stunning detail and a remarkable visual experience

Simple, personalized home screen: Your favorite broadcast TV, streaming channels, gaming console and other devices are front-and-center

Multiple voice assistants supported: Alexa, and Google Assistant voice assistants let you control your TV to play movies, TV shows, and more

4 HDMI inputs (1 ARC): Connect all your favorite devices through the four HDMI inputs that 1 HDMI ARC to easily sync audio and video sources and deliver better quality sound

Specifications

Screen Size
55 inches
Resolution
4K Ultra HD
HDR
Yes (High Dynamic Range)
Refresh Rate
60Hz
Audio
Dolby Digital Plus
HDMI Inputs
4 (1 ARC)
Voice Assistants
Amazon Alexa, Google Assistant
Wireless
Wi-Fi
Speakers
Built-In
Included
Free Wall Mount (base stand not included)

Pros & Cons

👍 Pros

  • Includes a free wall mount in the box, saving an additional purchase
  • HDR support enhances contrast and color depth for compatible content
  • Four HDMI inputs provide enough connectivity for multiple devices simultaneously
  • Dual voice assistant compatibility with both Alexa and Google Assistant offers flexibility
  • Dolby Digital Plus audio delivers improved sound quality over standard TV speakers

👎 Cons

  • No base stand is included, so wall mounting is required unless you purchase a stand separately
  • 60Hz refresh rate may produce visible motion blur during fast-paced sports or gaming
  • Built-in speakers, while Dolby Digital Plus capable, are unlikely to match a dedicated soundbar or audio system
  • Specific smart TV platform details are not listed, which may affect app availability

Frequently Asked Questions

No, a base stand is not included. However, a free wall mount is included in the box for mounting the TV on a wall.
It supports HDR (High Dynamic Range), which enhances contrast and color range for compatible content compared to standard dynamic range.
It has 4 HDMI inputs, with one supporting ARC (Audio Return Channel) for connecting a soundbar or audio receiver with a single cable.
Yes, it is compatible with both Amazon Alexa and Google Assistant for hands-free voice control.
It has a native 60Hz refresh rate, which is standard for most streaming and broadcast content.