TCL 55″ Class 4K UHD LED Roku Smart TV HDR 4 Series 55S421
Striking 4K UHD picture performance with high dynamic range (HDR) technology offers exceptional clarity and detail.
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: 1
What’s in the Box:
- Remote Control
- Batteries
Wall-Mountable:
- Mount Pattern: 200mm x 200mm
- Screw Size: M6
- Screw Length: 25mm
Support and Warranty:
- 1 year limited labor and parts
Additional information
| Display Technology | HDR, LED |
|---|---|
| Resolution | 4K UHD |
| Manufacturer | TCL |
| Connector Type | HDMI; USB; VGA; RJ-45 |
| Model | 55S421 |
| Screen Size | 55" |
| Brand | TCL |
| Condition | New |
| Manufacturer Part Number | 55s421 |
| Series | 4 Series |
| Streaming Services | VUDU; Netflix; Youtube; Showtime; Starz; Google Play; Sling; Hulu; Disney+; Pandora; LG Channels; Apple TV |
| Refresh Rate | 60 Hz |
| Assembled Product Dimensions (L x W x H) | 49.00 x 8.00 x 30.60 Inches |
4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is a square number, the smallest semiprime and composite number, and is considered unlucky in many East Asian cultures.
4K, 4-K or 4k may refer to:
- 4000 (number)
- Four kibibytes (4 × 1024 bytes, better written 4 KiB)
- 4K disk sector size (Advanced Format)
- 4K demoscene compo, a computer art competition using programs limited to 4 kibibytes
- The Java 4K Game Programming Contest
- 4K resolution, a collective term for digital video formats having a horizontal resolution of approximately 4,000 pixels
- 4K UHDTV, an ultra-high-definition television format
- 4K, the IATA airline code for Askari Aviation
- 4K, an alternative name for Cuatro Cabezas (Four Heads), an Argentine multimedia production company.
- 4K, model of Toyota K engine
- 4K, the production code for the 1976 Doctor Who serial The Brain of Morbius
- 4KScore test for prostate cancer screening
- Kenn Borek Air, a Canadian airline IATA code
Roku ( ROH-koo) is a brand owned by the American tech company Roku, Inc. It is used to market consumer electronic products such as smart TVs, streaming players (and their operating systems), as well as a free streaming service.
Roku is the top streaming TV distributor in the U.S., reaching nearly 120 million people as of 2024. The brand's products have been reviewed favorably for their ease of use.
by Jen
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.
by kayla
Haven’t been using this TV for too long, but so far it has been amazing for TV and video games. The audio seems better than I expected for TV built in speakers. The picture comes in really clear and the TV is extremely user friendly!
by shenika
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.
by Chun
most cost-effective TV on the market. I have both 65″ and 75″ for two conference rooms in my office.
by Harry
So I basically got this to support my xbox series x.. The picture is great and the ease of setting it up and having it up and running so quickly was a plus. The sound is good but I will definitely be getting a soundbar to give it a little something extra. The remote is very simplistic and gets you to the apps and the volume but I wish there was a menu button because getting to the accessibility section to change even the smallest thing is a daunting task. Just be sure you have a tv stand long enough to support it if you aren’t going to wall mount because i upgraded from a 57″ to this tv and had to order and build a new one long and deep enough to accommodate it.. Other than that, happy with the purchase.
by Nick
I bought this TV because I wanted a TV to be the size of the wall in my small living room in a condo. I loved this TV but ended up returning it for a couple reasons. 1) It was too big. Never thought there would be such thing as too big, but it was. The living room is small so the TV felt too big. I felt like I couldnt take in the whole picture as I should. 2) I installed a wall mount and The TVs mounting holes are not centered but on the lower portion of the TV back. It made it mount a lot higher than I intended. A TV this size would be great for a larger size room where the viewing space is at least 12ft. away from the TV. This TV is great for the following reasons. – Roku TV has a lot more customizations and features – Roku allows you to pause live TV by adding a USB. – Seems to be faster and more stable than the Android TV. – Roku app to control the TV. Android tv has no phone options at all. – Too much to mention. If you’re debating on an Android TV vs the Roku. I suggest the Roku. The Android option seems like a newer option but the Roku has so many more features. Some of the Roku TV brands offer you the option to use voice control with the Roku TV. The photos show a 55″ Android TV on top and the 65″ Roku TV below.
by Darlin
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.
by Destiny
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.