Tcl S405 55" Class HDR 4K UHD Smart LED TV

Model: 55S405

TCL Warranty
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Video System NTSC / ATSC
TV Tuner Yes - ATSC, Clear QAM


Subwoofer None
Sound Stereo
Power 16 W
Dolby Digital Yes


Battery Type 2 x AAA


Weight 30.00 lb / 13.61 kg With Stand29.5 lb / 13.38 kg Without Stand
Power Consumption Standby:
Operating/Storage Temperature Operating41 to 95°F (5 to 35°C)Humidity: 20 - 80%Storage5 to 113°F (-15 to 45°C)Humidity: 10 - 90%
Dimensions (W x H x D) 49.1 x 30.8 x 8.7" / 124.7 x 78.2 x 22.1 cm With Stand49.1 x 28.5 x 3.0" / 124.7 x 72.4 x 7.6 cm Without Stand
Stand Dimensions 38.2" / 97.03 cm (Width)


Screen Size (Diagonal) 54.6"
Display Colors 1.07 Billion
HDR Compatibility HDR10
Pixel Resolution 3840 x 2160
Aspect Ratio 16:9
Panel Type LCD


Operating System Roku TV
Wi-Fi Built-In
Supported Languages EnglishFrenchSpanish
Remote Control Yes
Wall Mounting 200 x 200mm
Virtual Assistant Support None


USB Ports 1 x USB 2.0 – Audio, Photo, Video
Primary Connectivity Location Display
Input Ports 3 x HDMI 2.0 – Audio, Video1 x RF Antenna – Audio, Video1 x RCA Composite – Video1 x RCA Stereo (L/R) – Audio
Output Ports 1 x TOSLINK Optical – Audio1 x 1/8" / 3.5 mm – Headphone
Ethernet LAN
Expert Reviews
1 December 2017

Although the image quality is just "good enough," the S405 series is still an excellent choice for budget buyers focused on streaming and simplicity.

  • +

    The TCL S405 series are among the least expensive 4K TVs on the market. Roku TV delivers the simplest, most comprehensive smart TV experience on the market. A superb user interface delivers thousands of apps and the most 4K video of any system.

  • -

    Worse picture than competing Vizio TVs. 4K resolution and HDR don't deliver a substantial improvement in image quality.

Pc magazine.34972991
25 August 2017

When not viewed through the lens of its far superior P-Series line, the TCL S-Series of 4K TVs offer capable but unimpressive performance for a very low price.

  • +

    Quite inexpensive. Roku TV features. Decent picture quality.

  • -

    Slightly skewed colors. Roku TV remote doesn't have enhanced features.

Tom s guide.32823298
5 March 2018

The TCL Roku 55S405 is as much as you could want for this affordable price, with solid 4K resolution, basic HDR support and Roku's feature-filled smart-TV interface.

  • +

    Affordable 4K and HDR, Excellent Roku smart TV, Super affordable

  • -

    Skewed colors, Backlight has noticeable shadows

5 December 2017

If you aren't picky, these 4K TVs may just be 2017's best bargain buy

User Reviews
30 November 2017

The only reason I went for TCL was due to the positive reviews, and I am very much enjoying my 55 inch TV. I read a few complaints on brightness and sound, but I don't seem to see any issues with that. I use it for gaming as well, and there doesn't seem to be any input lag, which is great.

9 December 2017

This is my first ever review of an item, but I feel it's necessary for others interested in this item. I'll keep it basic because from experience, I know I don't want to reach too much of an in-depth review. Picture Quality: Is good yet unspectacular.

12 December 2016

First, I have owned a TCL for the last 3 years and it's surprisingly a great and reliable brand. For this model, the picture quality is great. I have gone to other stores and viewed TVs and this is comparable to the mid-level displays of the other major brands.

9 November 2016

I got this TV when it was on sale and I have no regrets. It may not be a well known name brand here in the states like Vizio or Samsung, but this TV uses quality parts. The picture looks fantastic, even if the availability of 4K is scarce. The amount of varied apps available put Chromecast to shame.

6 October 2016

This TV, when functioning normally, works perfectly and has a great picture for the price. But I've owned it about two weeks and have had a few issues: As previous reviewers have stated, half the screen is sometimes darker than the other. Sometimes during startup, it will reboot itself.

Product Highlights
  • 4K UHD 3840 x 2160 LED Panel
  • HDR10 Compatible
  • 120 Hz CMI Motion Enhancement Technology
  • Built-In Wi-Fi & Ethernet Connectivity
  • Screen Mirroring Technology
  • Roku TV OS for Apps
  • 3 x HDMI / 1 x USB
  • Dolby Digital, Dolby Digital Plus
Average Expert Score
Average User Score
In The Box
  • TCL S405 55" Class HDR 4K UHD Smart LED TV
  • Remote Control
  • 2 x AAA Batteries
  • A/V Input Cable Adapter
  • Stand Assembly
  • Power Cable
  • Limited 1-Year Warranty
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