Tcl S425 43" Class HDR 4K UHD Smart LED TV

Model #43S425

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


Subwoofer None
Sound Stereo
Power 16 W
Dolby Digital Yes


Battery Type 2 x AAA


Weight 16.5 lb / 7.48 kg With Stand16.3 lb / 7.39 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) 38.2 x 24.5 x 7.6" / 97.0 x 62.2 x 19.3 cm With Stand38.2 x 22.4 x 3.0" / 97.0 x 56.9 x 7.6 cm Without Stand
Stand Dimensions 32.4" / 82.3 cm (Width)


Screen Size (Diagonal) 42.5"
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 100 x 100mm
Virtual Assistant Support Amazon Alexa, Google Assistant


USB Ports 1 x USB 2.0 – Audio, Photo, Video (Side)
Primary Connectivity Location Display
Input Ports 3 x HDMI – Audio, Video (Side)1 x RF Antenna – Audio, Video (Side)1 x RCA Composite – Video (Side)1 x RCA Stereo (L/R) – Audio (Side)
Output Ports 1 x TOSLINK Optical – Audio (Side)1 x 1/8" / 3.5 mm – Headphone (Side)
Ethernet LAN
Expert Reviews
8 February 2019

Although the image quality is just "good enough," the S425 series is still an excellent choice for budget buyers focused on streaming and simplicity.

  • +

    The TCL S425 series is one of the least expensive smart TVs you can buy. Roku TV delivers the best smart TV experience on the market, with a simple, responsive user interface, thousands of apps and constant feature upgrades.

  • -

    It has worse picture than Vizio's E series TVs. 4K resolution and HDR don't deliver a substantial improvement in image quality.

25 December 2019

Except for having an outstanding gaming performance, the TCL S425 doesn’t offer anything special in terms of 4K HDR picture quality. It’s strictly decent and little more on picture quality. But that’s also part of its charm in a way.

  • +

    Overall SDR peak brightness for normal content: 171 nits, Peak 2% display area display SDR brightness: 177 nits, Peak 10% display area SDR brightness: 178 nits, Peak 100% display area SDR brightness: 178 nits, Sustained 10% SDR brightness: 178 nits, Sustained 100% SDR brightness: 178 nits

  • -

    Overall SDR peak brightness for normal content: 171 nits, Peak 2% display area display SDR brightness: 177 nits, Peak 10% display area SDR brightness: 178 nits, Peak 100% display area SDR brightness: 178 nits, Sustained 10% SDR brightness: 178 nits, Sustained 100% SDR brightness: 178 nits

User Reviews
29 April 2020

Really great picture and sound. The reason for the 2 stars is that we only use this TV for streaming and have to reconnect it to WiFi every single time we turn it on. Never had this issue with Roku on it's own. Must be TCL, but it's ANNOYING.

7 June 2020

Good budget set. Good for smart apps. Good for games and movies. But, the HDR is poor and the sound could be better. However for the price you can't go wrong.

  • +

    Attractive, Easy To Set Up, Energy Efficient, Great Picture Quality, Simple Controls

  • -

    Poor Audio

30 September 2019

The color and clarity of the TV is wonderful. The only thing that keeps it from getting the 5th star is it drops off my network. This has happened at least 5 times in the past 7 days. Once I hit the reset switch it connects again, but never had this issue on the TV before with Fire TV.

13 April 2020

I purchased this TV in January, I am not happy with my purchase. The TV will freeze, sometimes I will have to turn TV off and turn back on. My other TV's don't give me any problems, and one of them is TCL. I think it has to do with this being a 4K, Just beware!

4 August 2019

We’ve had the tv for a week or so, and like it very much. The clarity and color are both good. It is very thin and lightweight. The sound quality is good. The remote control doesn’t seem to have a mute button, which would be nice when loud commercials come on, but the side volume button works almost...

25 May 2020

After reading a few reviews I feel bad so many people had a bad experience. I’ve had a fantastic time with the addition of this 43” it now makes 3 roku TVs in my household. I have a 60” in the living room, a 32” in one bedroom and now my 43” in my room.

2 weeks ago

Great value great tv

4 weeks ago

I love these TVs. This is the second one I've owned and I've had no problems.

20 June 2020

First of all, TCL makes great TV's at a great price with great features, but they do lack a bit on their Quality Assurance when sending these out for sale. I was happy to have finally received the 43" UHD 4K TV, great size and great price.

18 June 2020

I love this Roku tv ! The interface is the best and the picture and sound are good . But for the price , it’s great . You won’t get the best sound / picture with this one but it’s decent .

Product Highlights
  • 4K UHD 3840 x 2160 LED Panel
  • HDR10 Compatibility
  • 120 Hz CMI Motion Enhancement Technology
  • Built-In Wi-Fi Connectivity
  • Screen Mirroring Technology
  • Roku TV OS for Apps
  • 3 x HDMI / 1 x USB
  • Works with Alexa and Google Assistant
  • Dolby Digital Plus
Average Expert Score
Average User Score
In The Box
  • TCL S425 43" 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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