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4K55N400A
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55U7K
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What we think

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

If price is a primary concern and you're looking for a basic option, the Amazon 4-Series could be suitable, understanding it offers a poorer quality across most content types, struggles in both dark and bright rooms, and has limited gaming capabilities. On the other hand, the Hisense U7K, while more expensive, provides a significantly better experience in picture quality, gaming, and bright room performance. It supports more advanced HDR formats, offering richer colors and better contrast. For those who prioritize a high-quality viewing experience for a variety of content and gaming, the Hisense U7K would be the better choice, assuming you're okay with the higher cost. 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 Hisense U7K (LCD).
Advantages of the Hisense U7K (LCD)
  • Very good for bright room
  • Good for dark room
  • Very good for gaming
  • Very good for movies & TV
  • Very good for news, talk, & other TV
  • Very good for cartoons & animation
  • Good for use as monitor
  • Good for upscaling
  • Very good reflections

Key differences

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Picture Quality

5.7
4K55N400A
55U7K
8.0
7.13/10
CONTRAST
7.38/10
6.2/10
COLOR VOLUME SCORE
8.2/10
LED
PANEL TYPE
miniLED FALD
VA
PANEL SUB-TYPE
VA
The Hisense U7K (LCD) has very good picture quality, while the Amazon 4-Series (LCD) has poor picture quality.

Movies & TV

5.2
4K55N400A
55U7K
8.1
7.13/10
CONTRAST
7.38/10
5.9/10
BLACK UNIFORMITY
8.0/10
6.6/10
UPSCALING
7.0/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
Yes
No
DOLBY VISION SUPPORT
Yes
The Hisense U7K (LCD) is very good for movies & TV, while the Amazon 4-Series (LCD) is poor.

Sports

5.7
4K55N400A
55U7K
6.3
2.5/10
MOTION PROCESSING
3.5/10
60Hz
REFRESH RATE
144Hz
8.0/10
INPUT LAG SCORE
7.6/10
6.6/10
UPSCALING
7.0/10
6.8/10
SDR BRIGHTNESS SCORE
8.4/10
Yes
HLG SUPPORT
Yes
The Hisense U7K (LCD) is only fair for sports, while the Amazon 4-Series (LCD) is poor.

Gaming

5.5
4K55N400A
55U7K
8.8
5.6/10
RESPONSE TIME SCORE
8.1/10
8.0/10
INPUT LAG SCORE
7.6/10
2.5/10
MOTION PROCESSING
3.5/10
0.0/100
GAMING LOCAL DIMMING
85.0/100
5.7/10
GAME HDR BRIGHTNESS SCORE
8.3/10
The Hisense U7K (LCD) is very good for gaming, while the Amazon 4-Series (LCD) is poor.

Cartoons & Animation

5.4
4K55N400A
55U7K
8.6
5.9/10
COLOR GAMUT SCORE
8.3/10
6.2/10
COLOR VOLUME SCORE
8.2/10
6.8/10
SDR BRIGHTNESS SCORE
8.4/10
3.4/10
COLORS OUT OF THE BOX SCORE
8.6/10
5.9/10
GRAY UNIFORMITY
7.0/10
The Hisense U7K (LCD) is very good for cartoons & animation, while the Amazon 4-Series (LCD) is poor.

News, Talk, & Other TV

5.7
4K55N400A
55U7K
8.3
6.8/10
SDR BRIGHTNESS SCORE
8.4/10
6.6/10
UPSCALING
7.0/10
The Hisense U7K (LCD) is very good for news, talk, & other TV, while the Amazon 4-Series (LCD) is poor.

Bright Room

6.1
4K55N400A
55U7K
8.1
5.2/10
VIEWING ANGLE
5.3/10
6.8/10
SDR BRIGHTNESS SCORE
8.4/10
5.6/10
HDR BRIGHTNESS SCORE
7.9/10
6.3/10
REFLECTIONS SCORE
8.8/10
The Hisense U7K (LCD) is very good for bright room, while the Amazon 4-Series (LCD) is only fair.

Cost

$330
4K55N400A
55U7K
$478
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$700

The Amazon 4-Series (LCD) has a price of $330 and the Hisense U7K (LCD) costs $478.
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How the Amazon 4-Series (LCD) and the Hisense U7K (LCD) compare to other TVs

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Spec Comparison

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Amazon 4-Series (LCD)Hisense U7K (LCD)
Amazon 4-Series (LCD)Hisense U7K (LCD)

GENERAL

Price
$330
$478
Brand
AmazonHisense
Release Date
August 3, 2021August 1, 2023
Full name
4K55N400A55U7K
Screen Size
55"55"
Screen Resolution
4K4K

TV FEATURES

Operating System
Fire OSGoogle TV
Sound Quality Score
6.1/107/10
NextGen Ready
NoYes
HDMI Ports
44
Coax Ports
11

DISPLAY QUALITY SCORES

Picture Quality Score
5.8/108/10
Bright Room Score
6.1/108.1/10
Gaming Score
5.6/108.8/10
Movies & TV Score
5.3/108.1/10
Sports Score
5.8/106.4/10

PHYSICAL

Dimensions w/o Stand (H x W x D)
28.3" x 57.2" x 3.5"28.2" x 48.4" x 3.1"
Dimensions with Stand (H x W)
29.8" x 57.2"30.6" x 48.4"
Weight without Stand
42.5 lbs30.6 lbs
VESA Mount
300 x 300400 x 200

DISPLAY

Color Depth
10 bit10 bit
Black Frame Insertion
NoYes
Auto Low Latency Mode
YesYes
Contrast
7.1/107.4/10
Local Dimming
2.5/107.6/10

SOUND

Speaker Setup
2.02.0.2
Speaker Power
16 W40 W
Dolby Atmos
Bypass onlyYes
DTS:X
NoYes

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."

Get a great deal on the Amazon 4-Series (LCD) or the Hisense U7K (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.

About Hisense

Hisense, a Chinese TV manufacturer, entered the US market in approximately 2011 and has since acquired TV divisions from various companies such as Toshiba, Sharp, Hitachi, and NEC. Currently ranking as the fourth largest vendor in terms of sales volume, Hisense aims to capture a wide range of TV budget segments. They offer exceptional value with TVs that often outperform their competitors at similar price points, making them a compelling choice for consumers. In the US, they use Google TV as their smart TV software which provides the largest app selection and a very modern user interface, however it is not as user friendly as the software from other vendors.

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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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