A comparison of specs, key information, reviews, and best pricing from top retailers
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Updated April 10, 2024·
If you're on a tight budget and need a TV, the Amazon 4-Series (LCD) is an economical choice, but it offers poor performance across most content including movies, sports, and gaming, and isn't ideal for dark or bright rooms. However, if you can invest more, the LG B1 (OLED) excels in overall picture quality, especially in dark rooms, with its excellent viewing angles making it great for movies and series. Its performance is also very good for sports and gaming, but it may not be as bright as some other TVs in very sunny rooms. The LG B1 also supports advanced features like Dolby Vision and has better sound, but keep in mind, OLED screens are at a risk of permanent burn-in, so they may not be best for static content like using as a PC monitor. 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 LG B1 (OLED).
Advantages of the LG B1 (OLED)
- Good for bright room
- Very good for dark room
- Very good for gaming
- Very good for movies & TV
- Very good for sports
- Very good for news, talk, & other TV
- Very good for cartoons & animation
- Very good for use as monitor
- Very good for upscaling
- Very good motion processing
- Excellent viewing angle
- Excellent reflections
Key differences
Picture Quality
5.7
8.4
7.13/10
CONTRAST
10.00/10
6.2/10
COLOR VOLUME SCORE
7.1/10
LED
PANEL TYPE
WOLED
VA
PANEL SUB-TYPE
WBC
The LG B1 (OLED) has very good picture quality, while the Amazon 4-Series (LCD) has poor picture quality.
Movies & TV
5.2
8.9
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
No
No
DOLBY VISION SUPPORT
Yes
The LG B1 (OLED) is very good for movies & TV, while the Amazon 4-Series (LCD) is poor.
Sports
5.7
8.3
2.5/10
MOTION PROCESSING
8.0/10
60Hz
REFRESH RATE
120Hz
8.0/10
INPUT LAG SCORE
8.0/10
6.6/10
UPSCALING
8.0/10
6.8/10
SDR BRIGHTNESS SCORE
7.0/10
Yes
HLG SUPPORT
Yes
The LG B1 (OLED) is very good for sports, while the Amazon 4-Series (LCD) is poor.
Gaming
5.5
8.9
5.6/10
RESPONSE TIME SCORE
9.4/10
8.0/10
INPUT LAG SCORE
8.0/10
2.5/10
MOTION PROCESSING
8.0/10
0.0/100
GAMING LOCAL DIMMING
100.0/100
5.7/10
GAME HDR BRIGHTNESS SCORE
6.7/10
The LG B1 (OLED) is very good for gaming, while the Amazon 4-Series (LCD) is poor.
Cartoons & Animation
5.4
8.1
5.9/10
COLOR GAMUT SCORE
8.1/10
6.2/10
COLOR VOLUME SCORE
7.1/10
6.8/10
SDR BRIGHTNESS SCORE
7.0/10
3.4/10
COLORS OUT OF THE BOX SCORE
7.1/10
5.9/10
GRAY UNIFORMITY
9.6/10
The LG B1 (OLED) is very good for cartoons & animation, while the Amazon 4-Series (LCD) is poor.
News, Talk, & Other TV
5.7
8.5
6.8/10
SDR BRIGHTNESS SCORE
7.0/10
6.6/10
UPSCALING
8.0/10
The LG B1 (OLED) is very good for news, talk, & other TV, while the Amazon 4-Series (LCD) is poor.
Bright Room
6.1
7.0
5.2/10
VIEWING ANGLE
9.1/10
6.8/10
SDR BRIGHTNESS SCORE
7.0/10
5.6/10
HDR BRIGHTNESS SCORE
6.6/10
6.3/10
REFLECTIONS SCORE
9.2/10
The LG B1 (OLED) is good for bright room, while the Amazon 4-Series (LCD) is only fair.
Cost
$330
$1,200
$0
$500
$1,000
$1,500
$2,000
The Amazon 4-Series (LCD) has a price of $330 and the LG B1 (OLED) costs $1,200.
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How the Amazon 4-Series (LCD) and the LG B1 (OLED) compare to other TVs
Spec Comparison
 |  | |
| Amazon 4-Series (LCD) | LG B1 (OLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$330 | $1,200 | ||
Brand | |||
Brand | Amazon | LG | |
Release Date | |||
Release Date | August 3, 2021 | March 1, 2021 | |
Full name | |||
Full name | 4K55N400A | OLED55B1 | |
Screen Size | |||
Screen Size | 55" | 55" | |
Screen Resolution | |||
Screen Resolution | 4K | 4K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | Fire OS | webOS | |
Sound Quality Score | |||
Sound Quality Score | 6.1/10 | 7.8/10 | |
NextGen Ready | |||
NextGen Ready | No | No | |
HDMI Ports | |||
HDMI Ports | 4 | 4 | |
Coax Ports | |||
Coax Ports | 1 | 1 | |
DISPLAY QUALITY SCORES | |||
|---|---|---|---|
Picture Quality Score | |||
Picture Quality Score | 5.8/10 | 8.4/10 | |
Bright Room Score | |||
Bright Room Score | 6.1/10 | 7/10 | |
Gaming Score | |||
Gaming Score | 5.6/10 | 8.9/10 | |
Movies & TV Score | |||
Movies & TV Score | 5.3/10 | 9/10 | |
Sports Score | |||
Sports Score | 5.8/10 | 8.3/10 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 28.3" x 57.2" x 3.5" | 27.8" x 48.3" x 1.8" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 29.8" x 57.2" | 29.3" x 48.3" | |
Weight without Stand | |||
Weight without Stand | 42.5 lbs | 41.7 lbs | |
VESA Mount | |||
VESA Mount | 300 x 300 | 300 x 200 | |
DISPLAY | |||
|---|---|---|---|
Color Depth | |||
Color Depth | 10 bit | 10 bit | |
Black Frame Insertion | |||
Black Frame Insertion | No | Yes | |
Auto Low Latency Mode | |||
Auto Low Latency Mode | Yes | Yes | |
Contrast | |||
Contrast | 7.1/10 | 10/10 | |
Local Dimming | |||
Local Dimming | 2.5/10 | 10/10 | |
SOUND | |||
|---|---|---|---|
Speaker Setup | |||
Speaker Setup | 2.0 | 2.2 | |
Speaker Power | |||
Speaker Power | 16 W | 40 W | |
Dolby Atmos | |||
Dolby Atmos | Bypass only | Yes | |
DTS:X | |||
DTS:X | No | No | |
Shopping
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 LG B1 (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 LG
LG, a prominent TV brand from Korea, has played a significant role in popularizing OLED TVs. OLED technology is hailed as the future of TV technology. Their TVs employ WebOS, a proprietary smart TV software that not only offers seamless functionality but also includes gaming-specific features, earning praise from players worldwide. Often regarded as the gateway to unparalleled viewing experiences, LG's mid-range OLEDs come highly recommended, making them a worthwhile investment for those willing to stretch their budget for superior quality.
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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.
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Joe is an entrepreneur and lifelong electronics enthusiast with a Ph.D in Economics from the University of Michigan.
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Chandradeep is a staff expert and software engineer and expert in televisions and monitors. He’s been making monitor recommendations for ten years.
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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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