A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
Company ProductName Specs
Company ProductName Specs
Advantages of the Samsung S90D (OLED)
- Very good for bright room
- Excellent for dark room
- Best in class for gaming
- Excellent for news, talk, & other TV
- Excellent for use as monitor
- Best in class viewing angle
- Best in class reflections
Advantages of the Sony A90K (OLED)
- Excellent for sports
- Best in class for upscaling
- Best in class motion processing
Key differences
Sports
8.5
9.1
8.0/10
MOTION PROCESSING
10.0/10
144Hz
REFRESH RATE
120Hz
10.0/10
INPUT LAG SCORE
7.0/10
8.0/10
UPSCALING
10.0/10
8.0/10
SDR BRIGHTNESS SCORE
6.3/10
Yes
HLG SUPPORT
Yes
The Sony A90K (OLED) is excellent for sports, while the Samsung S90D (OLED) is very good.
Gaming
10.0
8.8
10.0/10
RESPONSE TIME SCORE
9.4/10
10.0/10
INPUT LAG SCORE
7.0/10
8.0/10
MOTION PROCESSING
10.0/10
100.0/100
GAMING LOCAL DIMMING
100.0/100
8.0/10
GAME HDR BRIGHTNESS SCORE
6.2/10
The Samsung S90D (OLED) is best in class for gaming, while the Sony A90K (OLED) is very good.
Bright Room
8.3
6.7
9.5/10
VIEWING ANGLE
8.8/10
8.0/10
SDR BRIGHTNESS SCORE
6.3/10
8.0/10
HDR BRIGHTNESS SCORE
6.2/10
10.0/10
REFLECTIONS SCORE
8.9/10
The Samsung S90D (OLED) is very good for bright room, while the Sony A90K (OLED) is only fair.
Cost
$1,500
$1,198
$500
$1,000
$1,500
$2,000
$2,500
The Samsung S90D (OLED) has a price of $1,500 and the Sony A90K (OLED) costs $1,198.
Let Us Help Find Your Perfect TV
Find your new TV
Key similarities
Picture Quality
9.0
8.5
10/10
CONTRAST
10.00/10
8.1/10
COLOR VOLUME SCORE
8.0/10
RGB OLED
PANEL TYPE
WOLED
QD-OLED
PANEL SUB-TYPE
WBE
Although they have very similar scores, PerfectRec considers Samsung S90D (OLED) to have excellent picture quality, while the Sony A90K (OLED) has very good picture quality.
Movies & TV
9.2
9.1
10/10
CONTRAST
10.00/10
10.0/10
BLACK UNIFORMITY
10.0/10
8.0/10
UPSCALING
10.0/10
Yes
HDR10 SUPPORT
Yes
Yes
HDR10+ SUPPORT
No
No
DOLBY VISION SUPPORT
Yes
The Samsung S90D (OLED) and Sony A90K (OLED) are both excellent for movies & TV.
Cartoons & Animation
8.8
8.4
8.3/10
COLOR GAMUT SCORE
8.3/10
8.1/10
COLOR VOLUME SCORE
8.0/10
8.0/10
SDR BRIGHTNESS SCORE
6.3/10
7.9/10
COLORS OUT OF THE BOX SCORE
7.7/10
10.0/10
GRAY UNIFORMITY
9.6/10
The Samsung S90D (OLED) and Sony A90K (OLED) are both very good for cartoons & animation.
News, Talk, & Other TV
9.0
8.7
8.0/10
SDR BRIGHTNESS SCORE
6.3/10
8.0/10
UPSCALING
10.0/10
Although they have very similar scores, PerfectRec considers Samsung S90D (OLED) to be excellent for news, talk, & other TV, while the Sony A90K (OLED) is very good.
Give feedback
We’re constantly working to improve.
How the Samsung S90D (OLED) and the Sony A90K (OLED) compare to other TVs
Spec Comparison
 |  | |
| Samsung S90D (OLED) | Sony A90K (OLED) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,500 | $1,198 | ||
Brand | |||
Brand | Samsung | Sony | |
Release Date | |||
Release Date | March 1, 2024 | June 1, 2022 | |
Full name | |||
Full name | QN42S90D | 42A90K | |
Screen Size | |||
Screen Size | 42" | 42" | |
Screen Resolution | |||
Screen Resolution | 4K | 4K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | Tizen | Android TV | |
Sound Quality Score | |||
Sound Quality Score | 8/10 | 7/10 | |
NextGen Ready | |||
NextGen Ready | Yes | Yes | |
HDMI Ports | |||
HDMI Ports | 4 | 4 | |
Coax Ports | |||
Coax Ports | 1 | 1 | |
DISPLAY QUALITY SCORES | |||
|---|---|---|---|
Picture Quality Score | |||
Picture Quality Score | 9/10 | 8.6/10 | |
Bright Room Score | |||
Bright Room Score | 8.3/10 | 6.8/10 | |
Gaming Score | |||
Gaming Score | 10/10 | 8.8/10 | |
Movies & TV Score | |||
Movies & TV Score | 9.2/10 | 9.1/10 | |
Sports Score | |||
Sports Score | 8.5/10 | 9.2/10 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 36.7" x 21.3" x1.6" | 21.5" x 36.7" x 2.2" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 36.7" x 22.7" x 6.7" | 21.7" x 36.7" | |
Weight without Stand | |||
Weight without Stand | 21.6 lbs | 29.3 lbs | |
VESA Mount | |||
VESA Mount | 300 x 200 | 200 x 200 | |
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 | 10/10 | |
Local Dimming | |||
Local Dimming | 10/10 | 10/10 | |
SOUND | |||
|---|---|---|---|
Speaker Setup | |||
Speaker Setup | 2.1 | 2.1 | |
Speaker Power | |||
Speaker Power | 40 W | 25 W | |
Dolby Atmos | |||
Dolby Atmos | Yes | Yes | |
DTS:X | |||
DTS:X | No | Up to DTS Digital Surround, Bypass only | |
Get a great deal on the Samsung S90D (OLED) or the Sony A90K (OLED)
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.
About Sony
Sony stands as a highly experienced and widely trusted TV manufacturer, earning a reputation that surpasses all others. A Japanese company, Sony has been making TVs for far longs than it has been making Playstation game consoles. Sony's high-end TVs are often regarded as the ultimate choice for videophiles, representing the epitome of quality, albeit at a premium price point. Renowned for their advanced and precise motion handling, as well as their cutting-edge local dimming algorithms, Sony consistently delivers unparalleled performance in these areas. They include Google TV software with all their TV sets, which grants access to the largest selection of apps available and they also include Bravia Core which is a movie streaming platform specifically for Sony TVs that offers higher picture quality by using more bandwidth.
Give feedback
We're constantly perfecting our model
TV guides you might be interested in
More comparisons for you
FAQs
FAQs about TVs
Why trust us
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
130,530
Recommendations made
19,580
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.
Featured in
