A comparison of specs, key information, reviews, and best pricing from top retailers
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OLED48B4
Company ProductName Specs











QN48S90D
Company ProductName Specs











Advantages of the LG B4 (OLED)
  • The LG B4 (OLED) has no clear advantages over the Samsung S90D (OLED).
Advantages of the Samsung S90D (OLED)
  • Best in class for gaming

Key differences

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Gaming

9.0
OLED48B4
QN48S90D
10.0
10.0/10
RESPONSE TIME SCORE
10.0/10
10.0/10
INPUT LAG SCORE
10.0/10
8.0/10
MOTION PROCESSING
8.0/10
100.0/100
GAMING LOCAL DIMMING
100.0/100
8.0/10
GAME HDR BRIGHTNESS SCORE
8.0/10
The Samsung S90D (OLED) is best in class for gaming, while the LG B4 (OLED) is excellent.

Cost

$1,300
OLED48B4
QN48S90D
$1,600
Product image
Product image

$500

$1,000

$1,500

$2,000

$2,500

The LG B4 (OLED) has a price of $1,300 and the Samsung S90D (OLED) costs $1,600.
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Key similarities

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Picture Quality

9.0
OLED48B4
QN48S90D
9.0
10/10
CONTRAST
10/10
8.1/10
COLOR VOLUME SCORE
8.1/10
WOLED
PANEL TYPE
RGB OLED
WBC
PANEL SUB-TYPE
QD-OLED
The LG B4 (OLED) and Samsung S90D (OLED) both have excellent picture quality.

Movies & TV

9.2
OLED48B4
QN48S90D
9.2
10/10
CONTRAST
10/10
10.0/10
BLACK UNIFORMITY
10.0/10
8.0/10
UPSCALING
8.0/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
Yes
Yes
DOLBY VISION SUPPORT
No
The LG B4 (OLED) and Samsung S90D (OLED) are both excellent for movies & TV.

Sports

8.5
OLED48B4
QN48S90D
8.5
8.0/10
MOTION PROCESSING
8.0/10
120Hz
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
8.0/10
Yes
HLG SUPPORT
Yes
The LG B4 (OLED) and Samsung S90D (OLED) are both very good for sports.

Cartoons & Animation

8.8
OLED48B4
QN48S90D
8.8
8.3/10
COLOR GAMUT SCORE
8.3/10
8.1/10
COLOR VOLUME SCORE
8.1/10
8.0/10
SDR BRIGHTNESS SCORE
8.0/10
7.9/10
COLORS OUT OF THE BOX SCORE
7.9/10
10.0/10
GRAY UNIFORMITY
10.0/10
The LG B4 (OLED) and Samsung S90D (OLED) are both very good for cartoons & animation.

News, Talk, & Other TV

9.0
OLED48B4
QN48S90D
9.0
8.0/10
SDR BRIGHTNESS SCORE
8.0/10
8.0/10
UPSCALING
8.0/10
The LG B4 (OLED) and Samsung S90D (OLED) are both excellent for news, talk, & other TV.

Bright Room

8.3
OLED48B4
QN48S90D
8.3
9.5/10
VIEWING ANGLE
9.5/10
8.0/10
SDR BRIGHTNESS SCORE
8.0/10
8.0/10
HDR BRIGHTNESS SCORE
8.0/10
10.0/10
REFLECTIONS SCORE
10.0/10
The LG B4 (OLED) and Samsung S90D (OLED) are both very good for bright room.

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How the LG B4 (OLED) and the Samsung S90D (OLED) compare to other TVs

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Spec Comparison

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LG B4 (OLED)Samsung S90D (OLED)
LG B4 (OLED)Samsung S90D (OLED)

GENERAL

Price
$1,300
$1,600
Brand
LGSamsung
Release Date
March 1, 2024March 1, 2024
Full name
OLED48B4QN48S90D
Screen Size
48"48"
Screen Resolution
4K4K

TV FEATURES

Operating System
WebOSTizen
Sound Quality Score
8/108/10
NextGen Ready
NoYes
HDMI Ports
44
Coax Ports
11

DISPLAY QUALITY SCORES

Picture Quality Score
9/109/10
Bright Room Score
8.3/108.3/10
Gaming Score
9/1010/10
Movies & TV Score
9.2/109.2/10
Sports Score
8.5/108.5/10

PHYSICAL

Dimensions w/o Stand (H x W x D)
24.3" x 42.2" x 1.8"42.2" x 24.4" x 1.8"
Dimensions with Stand (H x W)
26.6" x 42.2"42.2" x 26.6" x 9.1"
Weight without Stand
32.8 lbs32.8 lbs
VESA Mount
300 x 200300 x 200

DISPLAY

Color Depth
10 bit10 bit
Black Frame Insertion
YesYes
Auto Low Latency Mode
YesYes
Contrast
10/1010/10
Local Dimming
10/1010/10

SOUND

Speaker Setup
2.02.1
Speaker Power
20 W40 W
Dolby Atmos
YesYes
DTS:X
YesNo

Get a great deal on the LG B4 (OLED) or the Samsung S90D (OLED)

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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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
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.

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