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TCL

TCL 55S421 55 inch Class 4-Series 4K UHD HDR Roku Smart TV

Based on 138 reviews
Condition: New
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$344.40
Holiday Deal · 14% off was $399.99

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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2027

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: Only 10 left in stock, order soon!
Fulfilled by Smart S.
Arrives Nov 19 – Nov 20
Order within 9 hours and 24 minutes

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At a glance

Condition
New
Size
55" (55S421)
Model
55S421
Screen size
55 in
Color
Black
Display Technology
LED
Resolution
4K
In the box
StandTV
Works with
Roku TV, WiFi Direct, Miracast

Description

STUNNING PICTURE The 4-Series 4K TCL Roku TV delivers stunning picture performance while bringing all your favorite content through a simple, intuitive interface in a sleek modern design. 4K ULTRA HD RESOLUTION Stunning Ultra HD offers four times the resolution of Full HD for enhanced clarity and detail. HIGH DYNAMIC RANGE (HDR) TECHNOLOGY Delivers bright and accurate colors for a lifelike viewing experience. 4K CREATIVE PRO UPSCALING TCL’s proprietary 4K Creative Pro upscaling engine allows you to view your HD content in near 4K quality. ENDLESS ENTERTAINMENT Your favorite broadcast TV, streaming channels, gaming console, and other devices are front-and-center. No more flipping through inputs or wading through complicated menus. Like apps on a smartphone, all your favorites are at your fingertips from the instant you turn it on. Choose from thousands of streaming channels that feature over 500,000 movie and TV episodes plus live sports, news, music, kids and family, food, science and tech, fitness, foreign language, and so much more.

Specs 67

Screen Size 55 inches
Brand TCL
Display Technology LED
Resolution 4K
Refresh Rate 120
Special Feature Flat
Connectivity Technology Wi-Fi
Aspect Ratio 16:9

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 19 – Nov 20

Yes, absolutely! This item's return window has been extended for the holiday season: Returnable until Jan 31, 2027.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

I’ll take this TV over $2000 TV any day
Keeping this review short and simple the TV is amazing I’ve owned $2000 TVs and I will never go back to one. I now own three Roku TVs and my friend just bought one and she could not believe the picture. You have to experience this TV yourself to see if you like it or not in my opinion The television is worth the money and my experience with these televisions I have been nothing but successful. The remote is super easy to use the picture is brilliant with gaming mode, It is ultra fast and ultra responsive especially when working with arc or USB devices and the streaming is right where it needs to be. ... show more
Reviewed in the United States on July 12, 2019 by Usernameunknown
Screen went black after one year
Size: 55 Inch
We bought this TV in October of 2023 and the screen suddenly has gone completely black a little over a year later.
Reviewed in the United States on November 11, 2024 by MCMPerry
Was nice
Had for a very short time don't try to hang it by yourself that drops on its corner it's a gunner
Reviewed in the United States on June 19, 2025 by Jim
Most intuitive
Size: 55 Inch
Owned the android TV that upgraded to goodmgle TV, hated it The ROKU is superior and more intiitive
Reviewed in the United States on January 29, 2025 by Jimmy L Miller
Good
Size: 55 Inch
Works well, but did not come with adapter for hooking up surroundsound (audio optical cable) Had to purchase it separately
Reviewed in the United States on September 2, 2023 by CHUCK J MOLLIERE
Great
Size: 55"
Great
Reviewed in the United States on November 26, 2024 by Amazon Customer
Retailer
Had a terrible experience with this purchase. The retailer lost my my order during shipment, I guess. waited several more weeks to get my TV. Then when i got it to install it on the wall there was a large dent in the back where it looks like forklift damaged occurred. Luckly no issue's but, I will never order any electronics from Amazon ever again. ... show more
Reviewed in the United States on August 3, 2020 by james davis
Bad sound quality
Size: 55 Inch
Works great but the sound quality leaves much to be desired
Reviewed in the United States on September 1, 2023 by sherman
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