TCL

TCL 55S425 55-Inch 4K Smart LED Roku TV

4.5 (44712 reviews)
4K3840 x 216049 inch28.4 inch3.1 inch

A budget-friendly 55-inch 4K Roku TV that puts over 500,000 streaming titles at your fingertips with HDR support.

$329.99*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The TCL 55S425 is a 55-inch 4K Smart LED TV built around the Roku streaming platform, making it one of the most straightforward ways to access a vast library of streaming content without additional hardware. With a native 3840 x 2160 resolution and HDR support, it delivers a meaningful step up from 1080p displays, producing sharper detail and more dynamic color in compatible content. The direct-lit LED panel provides consistent brightness across the screen, and the dual-band Wi-Fi ensures reliable streaming performance for 4K content from services like Netflix, Hulu, and Amazon Prime Video.

Connectivity is well-rounded for a budget-tier TV: three HDMI inputs accommodate a game console, Blu-ray player, or soundbar, while the composite AV input supports legacy devices. An optical digital audio output and headphone jack round out the audio options. The set measures 49 inches wide by 28.4 inches tall without the stand and weighs just 27.1 pounds, making it easy to wall-mount on its 200mm x 200mm VESA pattern. Compatibility with Alexa and Google Assistant adds voice control for searching titles and adjusting settings, further simplifying daily use. While it doesn't compete with premium sets on contrast or motion handling, the 55S425 delivers a compelling combination of 4K clarity, smart features, and accessible pricing.

Key Features

Direct lit LED produces great picture quality | Compatible with Alexa and Google Assistant | Dual-band Wi-Fi and Ethernet port

TV Dimensions | Without Stand – 49 inch W x 28.4 inch H x 3.1 inch D | With Stand – 49 inch W x 30.6 inch H x 8 inch D | Stand Separation distance – 42.3 inch | Refresh rate – 120 Hz CMI | Wall mount – 200 millimeter x 200 millimeter VESA | Panel resolution – 3840 x 2160

Pairs 4K ultra HD picture clarity with the contrast, color, and detail of high dynamic Range (HDR) for the most lifelike picture

Smart functionality delivers all your favorite content with over 500,000 movies and TV episodes, accessible through the simple and intuitive Roku TV

Inputs/outputs: HDMI – 3 | USB – 1 | Ethernet – 1 | RF Input – 1 | SPDIF Digital Audio Optical – 1 | Audio Output Headphone – 1 | AV Input – Composite Video plus Land R Audio In

Specifications

Screen Size
55 inches
Resolution
3840 x 2160 (4K Ultra HD)
Display Type
Direct-lit LED
HDR
High Dynamic Range (HDR)
Refresh Rate
120 Hz CMI (Clear Motion Index)
Smart Platform
Roku TV
Voice Assistant Compatibility
Amazon Alexa, Google Assistant
Wi-Fi
Dual-band
HDMI Ports
3
USB Ports
1
Ethernet
1
RF Input
1
Digital Audio (Optical)
1 SPDIF
Headphone Output
1
AV Input
Composite Video + L/R Audio In
VESA Mount
200mm x 200mm
Dimensions (Without Stand)
49" W x 28.4" H x 3.1" D
Dimensions (With Stand)
49" W x 30.6" H x 8" D
Stand Separation
42.3 inches
Weight
27.1 lbs
Standby Power
Less than 0.5 watts

Pros & Cons

👍 Pros

  • Built-in Roku platform provides access to over 500,000 movies and TV episodes without needing a separate streaming device.
  • 4K Ultra HD resolution paired with HDR delivers noticeably sharper and more vibrant images than standard 1080p sets.
  • Dual-band Wi-Fi and an Ethernet port give flexible networking options for stable streaming.
  • Alexa and Google Assistant compatibility adds hands-free voice control without additional hardware beyond the assistant device.
  • Lightweight at 27.1 pounds, making wall mounting and repositioning straightforward.

👎 Cons

  • Direct-lit LED backlighting lacks the local dimming zones needed for deep, uniform blacks in dark scenes.
  • The 120 Hz figure is a Clear Motion Index (CMI) rating, not a native 120 Hz panel refresh, so actual motion handling is limited.
  • With only three HDMI ports, users with multiple consoles, a soundbar, and a streaming stick may run short on inputs.
  • No Dolby Vision support limits HDR performance compared to competing sets in this price range.

Frequently Asked Questions

Yes. The 55S425 is compatible with both Amazon Alexa and Google Assistant, allowing voice-controlled search, playback, and smart home commands through an external voice assistant device.
The panel resolution is 3840 x 2160 (4K Ultra HD), and it supports High Dynamic Range (HDR) for improved contrast, color, and detail.
It has three HDMI ports, plus one USB, one Ethernet, one RF input, one optical digital audio output, one headphone jack, and one composite AV input.
Yes. It supports a 200mm x 200mm VESA mount pattern. The stand separation distance is 42.3 inches if you prefer tabletop placement.
Yes, it includes dual-band Wi-Fi as well as an Ethernet port for wired connections.