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4K55M600A
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4K55N400A
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What we think

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

The Amazon Omni Series is somewhat more expensive but offers slightly better performance in a bright room and for news, talk, and reality TV. The 4-Series is less costly but has lower picture quality and performance for the same types of content. Both TVs have good contrast and very low input lag for gaming, though other gaming performance aspects are poor. If cost-saving is a priority and you mostly watch in darker environments, the 4-Series may be suitable. However, if you're willing to spend a bit more for improved brightness and better handling of daily content like news, the Omni Series could be a good choice. Keep in mind that neither of these models are particularly strong performers overall, so they are more budget-friendly options than high-quality investments. 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 Omni Series (LCD)
  • The Amazon Omni Series (LCD) has no clear advantages over the Amazon 4-Series (LCD).
Advantages of the Amazon 4-Series (LCD)
  • The Amazon 4-Series (LCD) has no clear advantages over the Amazon Omni Series (LCD).

Key differences

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Cost

$370
4K55M600A
4K55N400A
$330
Product image
Product image

$100

$200

$300

$400

$500

$600

The Amazon Omni Series (LCD) has a price of $370 and the Amazon 4-Series (LCD) costs $330.
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Key similarities

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Picture Quality

6.1
4K55M600A
4K55N400A
5.7
7.38/10
CONTRAST
7.13/10
6.2/10
COLOR VOLUME SCORE
6.2/10
LED
PANEL TYPE
LED
VA
PANEL SUB-TYPE
VA
Although they have very similar scores, PerfectRec considers Amazon Omni Series (LCD) to have only fair picture quality, while the Amazon 4-Series (LCD) has poor picture quality.

Movies & TV

5.6
4K55M600A
4K55N400A
5.2
7.38/10
CONTRAST
7.13/10
6.4/10
BLACK UNIFORMITY
5.9/10
6.6/10
UPSCALING
6.6/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
No
No
DOLBY VISION SUPPORT
No
The Amazon Omni Series (LCD) and Amazon 4-Series (LCD) are both poor for movies & TV.

Sports

5.8
4K55M600A
4K55N400A
5.7
2.5/10
MOTION PROCESSING
2.5/10
60Hz
REFRESH RATE
60Hz
8.0/10
INPUT LAG SCORE
8.0/10
6.6/10
UPSCALING
6.6/10
7.3/10
SDR BRIGHTNESS SCORE
6.8/10
Yes
HLG SUPPORT
Yes
The Amazon Omni Series (LCD) and Amazon 4-Series (LCD) are both poor for sports.

Gaming

5.6
4K55M600A
4K55N400A
5.5
6.0/10
RESPONSE TIME SCORE
5.6/10
8.0/10
INPUT LAG SCORE
8.0/10
2.5/10
MOTION PROCESSING
2.5/10
0.0/100
GAMING LOCAL DIMMING
0.0/100
5.9/10
GAME HDR BRIGHTNESS SCORE
5.7/10
The Amazon Omni Series (LCD) and Amazon 4-Series (LCD) are both poor for gaming.

Cartoons & Animation

5.8
4K55M600A
4K55N400A
5.4
5.9/10
COLOR GAMUT SCORE
5.9/10
6.2/10
COLOR VOLUME SCORE
6.2/10
7.3/10
SDR BRIGHTNESS SCORE
6.8/10
5.2/10
COLORS OUT OF THE BOX SCORE
3.4/10
6.0/10
GRAY UNIFORMITY
5.9/10
The Amazon Omni Series (LCD) and Amazon 4-Series (LCD) are both poor for cartoons & animation.

News, Talk, & Other TV

6.0
4K55M600A
4K55N400A
5.7
7.3/10
SDR BRIGHTNESS SCORE
6.8/10
6.6/10
UPSCALING
6.6/10
Although they have very similar scores, PerfectRec considers Amazon Omni Series (LCD) to be only fair for news, talk, & other TV, while the Amazon 4-Series (LCD) is poor.

Bright Room

6.3
4K55M600A
4K55N400A
6.1
5.3/10
VIEWING ANGLE
5.2/10
7.3/10
SDR BRIGHTNESS SCORE
6.8/10
5.7/10
HDR BRIGHTNESS SCORE
5.6/10
5.9/10
REFLECTIONS SCORE
6.3/10
The Amazon Omni Series (LCD) and Amazon 4-Series (LCD) are both only fair for bright room.

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How the Amazon Omni Series (LCD) and the Amazon 4-Series (LCD) compare to other TVs

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Spec Comparison

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Amazon Omni Series (LCD)Amazon 4-Series (LCD)
Amazon Omni Series (LCD)Amazon 4-Series (LCD)

GENERAL

Price
$370
$330
Brand
AmazonAmazon
Release Date
September 3, 2021August 3, 2021
Full name
4K55M600A4K55N400A
Screen Size
55"55"
Screen Resolution
4K4K

TV FEATURES

Operating System
Fire OSFire OS
Sound Quality Score
6.3/106.1/10
NextGen Ready
NoNo
HDMI Ports
44
Coax Ports
11

DISPLAY QUALITY SCORES

Picture Quality Score
6.2/105.8/10
Bright Room Score
6.3/106.1/10
Gaming Score
5.7/105.6/10
Movies & TV Score
5.7/105.3/10
Sports Score
5.9/105.8/10

PHYSICAL

Dimensions w/o Stand (H x W x D)
28.5" x 48.6" x 3.6"28.3" x 57.2" x 3.5"
Dimensions with Stand (H x W)
30.7" x 48.6"29.8" x 57.2"
Weight without Stand
25.0 lbs42.5 lbs
VESA Mount
300 x 300300 x 300

DISPLAY

Color Depth
10 bit10 bit
Black Frame Insertion
NoNo
Auto Low Latency Mode
YesYes
Contrast
7.4/107.1/10
Local Dimming
2.5/102.5/10

SOUND

Speaker Setup
2.02.0
Speaker Power
16 W16 W
Dolby Atmos
Bypass onlyBypass only
DTS:X
NoNo

Shopping

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Amazon Omni Series (LCD)

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Techradar

Nick Pino | July 2022
"If you want a competent budget screen with some handy features, the Amazon Omni TV delivers an experience that punches well above its price tag. You’ll also get the benefit of Fire TV’s new UI right out of the box. It’s clean and simple to understand, plus it puts content first. In the picture-quality department, the Amazon Omni is a surprising star among some of its dimmer, less colorful rivals."

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."

Get a great deal on the Amazon Omni Series (LCD) or the Amazon 4-Series (LCD)

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.

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Why trust us

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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
TVs evaluated
33,110
TVs stats compiled
21
Proprietary TVs ratings developed
82,830
Recommendations made
12,425
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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