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TCL 55" Class 4-Series 4K UHD HDR LED Roku Smart TV – 55S421

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Product Description

The 4-Series 4K TCL Roku TV delivers stunning Ultra HD picture quality with four times the resolution of Full HD for enhanced clarity and detail, as well as the most streaming channels of any 4K Roku TV. High dynamic range (HDR) technology delivers bright and accurate colors for a lifelike viewing experience. In addition, your favorite HD shows, movies, and sporting events are upscaled to near Ultra HD resolution with 4K Upscaling. The simple, intuitive Roku interface allows seamless access to over 500,000 streaming movies and TV episodes, your cable box, Blu-ray player, gaming console, and other devices without flipping through inputs or complicated menus.
TCL 55" Class 4K UHD LED Roku Smart TV HDR 4 Series 55S421 Key Features: Screen Size (Diag): 54.5 Backlight Type: LED Resolution: 4K Clear Motion Index: 120Hz Smart Functionality: Roku TV Aspect Ratio: 16:9 Dynamic Contrast Ratio: NA Viewable Angle (H/V): 178 degrees/178 degrees Number of Colors: 1.07 billion OSD Language: English/Spanish/French/German Speakers/Power Output: 10w + 10w Surround Sound Mode: NA TV without stand: 49.0" x 29.4" x 3.1" TV with stand: 49.0" x 30.6" x 8.0"Connectivity: HDMI: 3 x HDMI 2.0 w/ HDCP 2.2, one of which is ARC Headphone: 1 Optical Digital Audio:1 RCA Audio L + R: NA RF (Coaxial): 1 USB 2.0: 1What's in the Box: Remote Control BatteriesWall-Mountable: Mount Pattern: 200mm x 200mm Screw Size: M6 Screw Length: 12mmSupport and Warranty: 1 year limited labor and parts

Product Details

SKU 616382144 Brand TCL
Model Number 55S421 UPC 846042010115
Color Black Pre Order False

Customer Reviews


4/5/2020 5:00:00 PM

Great price great tv. I made a great choice

I purchased my tv a few weeks ago. It was delivered on time and still in great condition. Tv works perfectly fine. Sound is great. Colors are great. So I went back and purchased this same brand tv just a 65 inch. Which is now mounted in my living room. Hope this review help someone. Have a blessed day everyone.


7/29/2020 5:00:00 PM

Only problem. This model cannot be synced to Xfinity voice command remotes. Xfinity does not have a compatible code to synchronize to their remotes yet. You have to use tv remote for volume control. This is an Xfinity problem not a TCL problem so may get corrected someday


12/28/2020 4:00:00 PM

Loving it!

This is the first tv Ive owned in a decade. To go from no tv- to having this- has been great fun! As I dont have traditional tv service, I had to have a smart tv to work w my intended use of streaming Netflix and Hulu and this has perfectly fit the bill. I live next to a noisy highway, and the sound has been great... Im able to hear over the traffic. Setting up Netflix and Hulu was easy, even for me, someone who has exclusively used a computer for a decade. Im thoroughly enjoying this purchase and the value Im getting for the cost cannot be beat!


10/31/2020 5:00:00 PM

TCL Roku Rocks

Love love love this 75 inch TCL TV! My niece introduced me to this brand in Dec 2019 when she bought me a 50 inch TCL SmartTv for Christmas and its a great tv with a crisp picture and great sound! So when I remodeled my living room I got the 75 inch TV in July and I can not get enough of this tv might should have gotten a 85 inch instead!


3/13/2021 4:00:00 PM

Excellent Quality Viewing and Sound!

I wanted to purchase a Roku Smart TV for my master bedroom so I can be able to tune in to the Bible channels, and this TCL 43 inch Roku Smart TV worked perfectly. Installation was a breeze, the picture quality is excellent, the size is dynamic and the sound is absolutely great. Now, I no longer have to connect my lab top to a regular tv and log-in to see the Bible channels that I love, because the TCL Roku Smart TV does it all. It's saves time and space. I definitely love it!


5/20/2021 5:00:00 PM

The search for the perfect television

I found this whole process to be extremely easy and had no issues whatsoever. I was able to read reviews and had plenty of information available to me in order to narrow down my search for the right tv. Once I chose which item I wanted, I ordered it and immediately received an order confirmation. The shipping was easy to track, and I had no issues. I love my tv and would definitely recommend it to anyone. I was very pleased with the entire process.


5/8/2020 5:00:00 PM

I ordered this TV as a store pick up. I ordered it in the morning and was able to pick up same day on the evening. It's super easy to set up. I'm not much of a TV person so I wasn't looking into spending a lot of money. This TV works for me I only use it to watch Netflix. See pictures attached.


8/27/2020 5:00:00 PM

Good for the price

This TCL is the second one we own. It is easy to set up, but we did have to buy the bracket stand for it because our console table was not wide enough to hold it. Otherwise, it was a simple setup. The picture is clear and the sound is very good. The only thing I dont like is that I cant fine tune the color balance. Most of the white actors look pathetically pale. I darkened the brightness, which helped some, but would like to see more color saturation. Overall, this is a great television for the money.


11/19/2020 4:00:00 PM

This TV is perfect especially for the reasonable price that was provided. The only issue is that the TV kept saying "TV is over heating" but after i turn it off for 20 mins it would be fine. I haven't had that issue in awhile though, other than that the TV works like a dream.


3/11/2021 4:00:00 PM

Not for use in a bedroom

As TV's go this is a good buy but if you don't want a bright night light in your room, don't get this TV. The remote uses infrared which is invisible BUT the receptor is clear plastic and is lit up by LEDs until the TV is turned on. That means you have a bright light shinning in your bedroom that lights up the whole room. See photo. Poor design. If you cover the plastic LED the TV remote won't work.