A comparison of specs, key information, reviews, and best pricing from top retailers
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Company ProductName Specs
Company ProductName Specs
Advantages of the LG C4 (OLED)
- 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 use as monitor
- Best in class viewing angle
- Best in class reflections
Advantages of the Samsung QN90D (LCD)
- Best in class for bright room
Key differences
Picture Quality
9.0
8.1
10/10
CONTRAST
7.375/10
8.1/10
COLOR VOLUME SCORE
9.1/10
WOLED
PANEL TYPE
miniLED FALD
WBC
PANEL SUB-TYPE
ADS / IPS
The LG C4 (OLED) has excellent picture quality, while the Samsung QN90D (LCD) has very good picture quality.
Movies & TV
9.2
8.0
10/10
CONTRAST
7.375/10
10.0/10
BLACK UNIFORMITY
6.8/10
8.0/10
UPSCALING
8.0/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
Yes
Yes
DOLBY VISION SUPPORT
No
The LG C4 (OLED) is excellent for movies & TV, while the Samsung QN90D (LCD) is very good.
Sports
8.5
7.0
8.0/10
MOTION PROCESSING
8.0/10
144Hz
REFRESH RATE
144Hz
10.0/10
INPUT LAG SCORE
10.0/10
8.0/10
UPSCALING
8.0/10
8.0/10
SDR BRIGHTNESS SCORE
10.0/10
Yes
HLG SUPPORT
Yes
The LG C4 (OLED) is very good for sports, while the Samsung QN90D (LCD) is good.
Gaming
10.0
8.7
10.0/10
RESPONSE TIME SCORE
7.8/10
10.0/10
INPUT LAG SCORE
10.0/10
8.0/10
MOTION PROCESSING
8.0/10
100.0/100
GAMING LOCAL DIMMING
75.0/100
8.0/10
GAME HDR BRIGHTNESS SCORE
8.9/10
The LG C4 (OLED) is best in class for gaming, while the Samsung QN90D (LCD) is very good.
Bright Room
8.3
9.7
9.5/10
VIEWING ANGLE
6.5/10
8.0/10
SDR BRIGHTNESS SCORE
10.0/10
8.0/10
HDR BRIGHTNESS SCORE
8.8/10
10.0/10
REFLECTIONS SCORE
9.0/10
The Samsung QN90D (LCD) is best in class for bright room, while the LG C4 (OLED) is very good.
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Key similarities
Cartoons & Animation
8.8
8.8
8.3/10
COLOR GAMUT SCORE
7.5/10
8.1/10
COLOR VOLUME SCORE
9.1/10
8.0/10
SDR BRIGHTNESS SCORE
10.0/10
7.9/10
COLORS OUT OF THE BOX SCORE
8.1/10
10.0/10
GRAY UNIFORMITY
7.7/10
The LG C4 (OLED) and Samsung QN90D (LCD) are both very good for cartoons & animation.
News, Talk, & Other TV
9.0
8.8
8.0/10
SDR BRIGHTNESS SCORE
10.0/10
8.0/10
UPSCALING
8.0/10
Although they have very similar scores, PerfectRec considers LG C4 (OLED) to be excellent for news, talk, & other TV, while the Samsung QN90D (LCD) is very good.
Cost
$2,000
$2,000
$1,000
$1,500
$2,000
$2,500
$3,000
The LG C4 (OLED) has a price of $2,000 and the Samsung QN90D (LCD) costs $2,000.
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How the LG C4 (OLED) and the Samsung QN90D (LCD) compare to other TVs
Spec Comparison
 |  | |
| LG C4 (OLED) | Samsung QN90D (LCD) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$2,000 | $2,000 | ||
Brand | |||
Brand | LG | Samsung | |
Release Date | |||
Release Date | March 1, 2024 | March 1, 2024 | |
Full name | |||
Full name | OLED55C4 | QN55QN90D | |
Screen Size | |||
Screen Size | 55" | 55" | |
Screen Resolution | |||
Screen Resolution | 4K | 4K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | WebOS | Tizen | |
Sound Quality Score | |||
Sound Quality Score | 8/10 | 8.3/10 | |
NextGen Ready | |||
NextGen Ready | No | Yes | |
HDMI Ports | |||
HDMI Ports | 4 | 4 | |
Coax Ports | |||
Coax Ports | 1 | 1 | |
DISPLAY QUALITY SCORES | |||
|---|---|---|---|
Picture Quality Score | |||
Picture Quality Score | 9/10 | 8.1/10 | |
Bright Room Score | |||
Bright Room Score | 8.3/10 | 9.7/10 | |
Gaming Score | |||
Gaming Score | 10/10 | 8.8/10 | |
Movies & TV Score | |||
Movies & TV Score | 9.2/10 | 8.1/10 | |
Sports Score | |||
Sports Score | 8.5/10 | 7/10 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 48.1" x 27.7" x1.8" | 32.6" x 56.9" x 1.1" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 48.1" x 29.8" x 9.1" | 35.1" x 56.9" | |
Weight without Stand | |||
Weight without Stand | 31.1 lbs | 53.4 lbs | |
VESA Mount | |||
VESA Mount | 300 x 200 | 400 x 400 | |
DISPLAY | |||
|---|---|---|---|
Color Depth | |||
Color Depth | 10 bit | 10 bit | |
Black Frame Insertion | |||
Black Frame Insertion | Yes | Yes | |
Auto Low Latency Mode | |||
Auto Low Latency Mode | Yes | Yes | |
Contrast | |||
Contrast | 10/10 | 7.4/10 | |
Local Dimming | |||
Local Dimming | 10/10 | 7/10 | |
SOUND | |||
|---|---|---|---|
Speaker Setup | |||
Speaker Setup | 2.2 | 4.2.2 | |
Speaker Power | |||
Speaker Power | 40 W | 60 W | |
Dolby Atmos | |||
Dolby Atmos | Yes | Yes | |
DTS:X | |||
DTS:X | Yes | No | |
Get a great deal on the LG C4 (OLED) or the Samsung QN90D (LCD)
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.
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
TVs evaluated
33,110
TVs stats compiled
21
Proprietary TVs ratings developed
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Recommendations made
17,870
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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