A comparison of specs, key information, reviews, and best pricing from top retailers
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What we think
The PerfectRec TV team Learn more
Updated April 10, 2024·
If you're on a tight budget and just need a basic TV, the Amazon 4-Series could be suitable, but it will likely disappoint if you desire quality for movies, sports, or gaming, and its performance in both dark and bright rooms is not impressive. On the other hand, the LG B3 is an OLED with excellent picture quality and is better suited for watching movies and sports, gaming, and viewing in both dark and bright rooms. While it costs significantly more than the Amazon 4-Series, the LG B3 offers a superior audio-visual experience, including better sound, picture quality, and more advanced features such as higher refresh rates and support for HDR; the tradeoff is the higher price tag. If picture quality is important to you and you're willing to invest in a more premium experience, the LG B3 is the better choice. 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 B3 (OLED).
Advantages of the LG B3 (OLED)
- Good for bright room
- Excellent for dark room
- Very good for gaming
- Excellent 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
- Good for upscaling
- Very good motion processing
- Best in class viewing angle
- Excellent reflections
Key differences
Picture Quality
5.7
8.8
7.13/10
CONTRAST
10/10
6.2/10
COLOR VOLUME SCORE
8.1/10
LED
PANEL TYPE
WOLED
VA
PANEL SUB-TYPE
WBC
The LG B3 (OLED) has very good picture quality, while the Amazon 4-Series (LCD) has poor picture quality.
Movies & TV
5.2
9.2
7.13/10
CONTRAST
10/10
5.9/10
BLACK UNIFORMITY
10.0/10
6.6/10
UPSCALING
7.0/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
No
No
DOLBY VISION SUPPORT
Yes
The LG B3 (OLED) is excellent 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
10.0/10
6.6/10
UPSCALING
7.0/10
6.8/10
SDR BRIGHTNESS SCORE
7.1/10
Yes
HLG SUPPORT
Yes
The LG B3 (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
10.0/10
2.5/10
MOTION PROCESSING
8.0/10
0.0/100
GAMING LOCAL DIMMING
100.0/100
5.7/10
GAME HDR BRIGHTNESS SCORE
7.5/10
The LG B3 (OLED) is very good for gaming, while the Amazon 4-Series (LCD) is poor.
Cartoons & Animation
5.4
8.7
5.9/10
COLOR GAMUT SCORE
8.3/10
6.2/10
COLOR VOLUME SCORE
8.1/10
6.8/10
SDR BRIGHTNESS SCORE
7.1/10
3.4/10
COLORS OUT OF THE BOX SCORE
8.5/10
5.9/10
GRAY UNIFORMITY
9.5/10
The LG B3 (OLED) is very good for cartoons & animation, while the Amazon 4-Series (LCD) is poor.
News, Talk, & Other TV
5.7
8.3
6.8/10
SDR BRIGHTNESS SCORE
7.1/10
6.6/10
UPSCALING
7.0/10
The LG B3 (OLED) is very good for news, talk, & other TV, while the Amazon 4-Series (LCD) is poor.
Bright Room
6.1
7.3
5.2/10
VIEWING ANGLE
9.5/10
6.8/10
SDR BRIGHTNESS SCORE
7.1/10
5.6/10
HDR BRIGHTNESS SCORE
7.2/10
6.3/10
REFLECTIONS SCORE
9.2/10
The LG B3 (OLED) is good for bright room, while the Amazon 4-Series (LCD) is only fair.
Cost
$330
$997
$0
$500
$1,000
$1,500
$2,000
The Amazon 4-Series (LCD) has a price of $330 and the LG B3 (OLED) costs $997.
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How the Amazon 4-Series (LCD) and the LG B3 (OLED) compare to other TVs
Spec Comparison
 |  | |
| Amazon 4-Series (LCD) | LG B3 (OLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$330 | $997 | ||
Brand | |||
Brand | Amazon | LG | |
Release Date | |||
Release Date | August 3, 2021 | April 1, 2023 | |
Full name | |||
Full name | 4K55N400A | OLED55B3 | |
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 | 7/10 | |
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 | 8.9/10 | |
Bright Room Score | |||
Bright Room Score | 6.1/10 | 7.4/10 | |
Gaming Score | |||
Gaming Score | 5.6/10 | 9/10 | |
Movies & TV Score | |||
Movies & TV Score | 5.3/10 | 9.3/10 | |
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" | 27.9" 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 | 2.0 | |
Speaker Power | |||
Speaker Power | 16 W | 20 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 B3 (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.
Jason Lew
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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.
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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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