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4K55N400A
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QN55S90C
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What we think

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The PerfectRec TV team Learn more
Updated April 10, 2024·

If you're on a budget and need to save money, the Amazon 4-Series could be an acceptable choice, but be aware that its performance is generally poor across most areas, including picture quality, gaming, and viewing in both bright and dark rooms. Conversely, if you're willing to pay more for superior viewing experience, the Samsung S90C excels in almost all areas, including picture quality, gaming, sports watching, and performance in both dark and bright environments. The Samsung S90C is also an OLED with a higher refresh rate, which translates to better motion handling and contrast, making it a strong choice especially for movies and gaming. However, if you rarely watch high-quality content or play video games and mainly use the TV for general viewing in well-lit rooms, the additional cost of the Samsung may not be justifiable. Give Feedback

this description is based on the product variant with some specs and product variant with some specs. At the time of writing, the variant with some specs cost some dollars and the variant with some specs cost some dollars.
Advantages of the Amazon 4-Series (LCD)
  • The Amazon 4-Series (LCD) has no clear advantages over the Samsung S90C (OLED).
Advantages of the Samsung S90C (OLED)
  • Very good for bright room
  • Excellent for dark room
  • Best in class for gaming
  • Excellent for movies & TV
  • Very good for sports
  • Excellent for news, talk, & other TV
  • Excellent for cartoons & animation
  • Excellent for use as monitor
  • Very good for upscaling
  • Very good motion processing
  • Best in class viewing angle
  • Best in class reflections

Key differences

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Picture Quality

5.7
4K55N400A
QN55S90C
9.4
7.13/10
CONTRAST
10.00/10
6.2/10
COLOR VOLUME SCORE
9.2/10
LED
PANEL TYPE
RGB OLED
VA
PANEL SUB-TYPE
QD-OLED
The Samsung S90C (OLED) has excellent picture quality, while the Amazon 4-Series (LCD) has poor picture quality.

Movies & TV

5.2
4K55N400A
QN55S90C
9.4
7.13/10
CONTRAST
10.00/10
5.9/10
BLACK UNIFORMITY
10.0/10
6.6/10
UPSCALING
8.0/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
Yes
No
DOLBY VISION SUPPORT
No
The Samsung S90C (OLED) is excellent for movies & TV, while the Amazon 4-Series (LCD) is poor.

Sports

5.7
4K55N400A
QN55S90C
8.7
2.5/10
MOTION PROCESSING
8.2/10
60Hz
REFRESH RATE
144Hz
8.0/10
INPUT LAG SCORE
10.0/10
6.6/10
UPSCALING
8.0/10
6.8/10
SDR BRIGHTNESS SCORE
7.8/10
Yes
HLG SUPPORT
Yes
The Samsung S90C (OLED) is very good for sports, while the Amazon 4-Series (LCD) is poor.

Gaming

5.5
4K55N400A
QN55S90C
10.0
5.6/10
RESPONSE TIME SCORE
10.0/10
8.0/10
INPUT LAG SCORE
10.0/10
2.5/10
MOTION PROCESSING
8.2/10
0.0/100
GAMING LOCAL DIMMING
100.0/100
5.7/10
GAME HDR BRIGHTNESS SCORE
8.4/10
The Samsung S90C (OLED) is best in class for gaming, while the Amazon 4-Series (LCD) is poor.

Cartoons & Animation

5.4
4K55N400A
QN55S90C
9.3
5.9/10
COLOR GAMUT SCORE
9.2/10
6.2/10
COLOR VOLUME SCORE
9.2/10
6.8/10
SDR BRIGHTNESS SCORE
7.8/10
3.4/10
COLORS OUT OF THE BOX SCORE
8.8/10
5.9/10
GRAY UNIFORMITY
9.8/10
The Samsung S90C (OLED) is excellent for cartoons & animation, while the Amazon 4-Series (LCD) is poor.

News, Talk, & Other TV

5.7
4K55N400A
QN55S90C
9.1
6.8/10
SDR BRIGHTNESS SCORE
7.8/10
6.6/10
UPSCALING
8.0/10
The Samsung S90C (OLED) is excellent for news, talk, & other TV, while the Amazon 4-Series (LCD) is poor.

Bright Room

6.1
4K55N400A
QN55S90C
8.5
5.2/10
VIEWING ANGLE
10.0/10
6.8/10
SDR BRIGHTNESS SCORE
7.8/10
5.6/10
HDR BRIGHTNESS SCORE
8.0/10
6.3/10
REFLECTIONS SCORE
10.0/10
The Samsung S90C (OLED) is very good for bright room, while the Amazon 4-Series (LCD) is only fair.

Cost

$330
4K55N400A
QN55S90C
$1,250
Product image
Product image

$0

$500

$1,000

$1,500

$2,000

The Amazon 4-Series (LCD) has a price of $330 and the Samsung S90C (OLED) costs $1,250.
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How the Amazon 4-Series (LCD) and the Samsung S90C (OLED) compare to other TVs

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Spec Comparison

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Amazon 4-Series (LCD)Samsung S90C (OLED)
Amazon 4-Series (LCD)Samsung S90C (OLED)

GENERAL

Price
$330
$1,250
Brand
AmazonSamsung
Release Date
August 3, 2021April 10, 2023
Full name
4K55N400AQN55S90C
Screen Size
55"55"
Screen Resolution
4K4K

TV FEATURES

Operating System
Fire OSTizen
Sound Quality Score
6.1/106.4/10
NextGen Ready
NoYes
HDMI Ports
44
Coax Ports
11

DISPLAY QUALITY SCORES

Picture Quality Score
5.8/109.4/10
Bright Room Score
6.1/108.6/10
Gaming Score
5.6/1010/10
Movies & TV Score
5.3/109.5/10
Sports Score
5.8/108.8/10

PHYSICAL

Dimensions w/o Stand (H x W x D)
28.3" x 57.2" x 3.5"27.9" x 48.2" x 1.6"
Dimensions with Stand (H x W)
29.8" x 57.2"30.5" x 48.2"
Weight without Stand
42.5 lbsUnknown
VESA Mount
300 x 300300 x 200

DISPLAY

Color Depth
10 bit10 bit
Black Frame Insertion
NoYes
Auto Low Latency Mode
YesYes
Contrast
7.1/1010/10
Local Dimming
2.5/1010/10

SOUND

Speaker Setup
2.02.1
Speaker Power
16 WUnknown
Dolby Atmos
Bypass onlyYes
DTS:X
NoNo

Shopping

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Amazon 4-Series (LCD)

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Dig into reviews and images

Tech Advisor

Jim Martin | May 2023
"The attraction here is that the 4-Series uses Amazon’s Fire TV interface. Picture quality is good but unexceptional. At the discounted prices, which can seemingly be had regularly, they are better value."

Samsung S90C (OLED)

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Dig into reviews and images

Techradar

John Archer | August 2023
"Samsung S90C is the company's attempt at making its QD-OLED technology more affordable. You get high-end pictures, great processing, top gaming tech, and a sharp design."

Get a great deal on the Amazon 4-Series (LCD) or the Samsung S90C (OLED)

About Amazon

Amazon, the largest online retailer in North America, has forged partnerships with TCL and Hisense to produce white-label TVs incorporating their Fire OS software. These Amazon-branded TVs typically compete in the low-end and mid-range segments, offering compelling price points. Leveraging their strong reputation, Amazon has swiftly built brand trust in the TV market despite being relatively new to it. To enhance their popularity, these TVs integrate features from the Amazon ecosystem, including Alexa, providing users with a seamless and interconnected TV experience.

About Samsung

Samsung, a South Korean electronics manufacturer, holds the title of being the largest global TV vendor in terms of units sold. They offer a diverse lineup of TV products that cater to various budget ranges. A notable achievement in recent years is the development of Quantum Dots, a technology that enhances color reproduction, resulting in richer and more vibrant hues. Samsung TVs are well-regarded for their high manufacturing quality and user-friendly software, making them an excellent choice for consumers seeking an intuitive viewing experience.

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This information was produced and vetted by the PerfectRec TVs team. We are a product research and recommendation organization that meticulously reviews and evaluates the latest TV information and makes it digestible for you.

By the numbers

385
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Recommendations made
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Consumer hours saved

About the TV team

Joe Golden, Ph.D

CEO and TVs Editor
Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.

Jason Lew

Staff Expert & Software Engineer
Jason is a staff expert and software engineer that has been making laptop recommendations for 7 years and moderates one of the largest laptop subreddits.

Chandradeep Chowdhury

Staff Expert & Software Engineer
Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.

Jaime Roldán

TVs Expert
Jaime is a Colombia-based TV expert. He is an electronics engineer with 8 years of experience in the telecom sector and has been making TV recommendations for 12 years.

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