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55NANO90
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KD-55X85J
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What we think

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The PerfectRec TV team Learn more
Updated January 10, 2024·

If you're looking for a more budget-friendly option, the LG NANO90 is often significantly less expensive. If gaming is a priority, both TVs have similar scores, but for watching sports and in well-lit environments, the Sony X85J slightly edges out. On the other hand, if darker room performance is vital, you might not see a big difference between the two. Also, note that neither TV excels in sound quality and might benefit from external speakers. 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 LG NANO90 (LCD)
  • Very good for gaming
  • Good for use as monitor
  • Very good reflections
Advantages of the Sony X85J (LCD)
  • Good for bright room
  • Good for sports
  • Very good for news, talk, & other TV
  • Very good for cartoons & animation
  • Best in class for upscaling
  • Best in class motion processing

Key differences

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Picture Quality

6.1
55NANO90
KD-55X85J
7.3
5.28/10
CONTRAST
7.88/10
6.6/10
COLOR VOLUME SCORE
7.3/10
LED FALD
PANEL TYPE
LED
IPS
PANEL SUB-TYPE
VA
The Sony X85J (LCD) has good picture quality, while the LG NANO90 (LCD) has only fair picture quality.

Movies & TV

5.6
55NANO90
KD-55X85J
6.5
5.28/10
CONTRAST
7.88/10
5.3/10
BLACK UNIFORMITY
6.9/10
7.5/10
UPSCALING
10.0/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
No
Yes
DOLBY VISION SUPPORT
Yes
The Sony X85J (LCD) is only fair for movies & TV, while the LG NANO90 (LCD) is poor.

Cartoons & Animation

5.6
55NANO90
KD-55X85J
8.6
6.5/10
COLOR GAMUT SCORE
7.3/10
6.6/10
COLOR VOLUME SCORE
7.3/10
7.8/10
SDR BRIGHTNESS SCORE
8.5/10
4.3/10
COLORS OUT OF THE BOX SCORE
9.1/10
5.9/10
GRAY UNIFORMITY
8.2/10
The Sony X85J (LCD) is very good for cartoons & animation, while the LG NANO90 (LCD) is poor.

News, Talk, & Other TV

6.4
55NANO90
KD-55X85J
8.2
7.8/10
SDR BRIGHTNESS SCORE
8.5/10
7.5/10
UPSCALING
10.0/10
The Sony X85J (LCD) is very good for news, talk, & other TV, while the LG NANO90 (LCD) is only fair.

Cost

$1,099
55NANO90
KD-55X85J
$1,000
Product image
Product image

$400

$600

$800

$1,000

$1,200

$1,400

$1,600

$1,800

The LG NANO90 (LCD) has a price of $1,099 and the Sony X85J (LCD) costs $1,000.
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Key similarities

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Sports

6.8
55NANO90
KD-55X85J
7.2
7.5/10
MOTION PROCESSING
10.0/10
120Hz
REFRESH RATE
120Hz
8.7/10
INPUT LAG SCORE
7.6/10
7.5/10
UPSCALING
10.0/10
7.8/10
SDR BRIGHTNESS SCORE
8.5/10
Yes
HLG SUPPORT
Yes
Although they have very similar scores, PerfectRec considers Sony X85J (LCD) to be good for sports, while the LG NANO90 (LCD) is only fair.

Gaming

8.0
55NANO90
KD-55X85J
7.6
7.6/10
RESPONSE TIME SCORE
7.8/10
8.7/10
INPUT LAG SCORE
7.6/10
7.5/10
MOTION PROCESSING
10.0/10
50.0/100
GAMING LOCAL DIMMING
0.0/100
7.6/10
GAME HDR BRIGHTNESS SCORE
7.5/10
Although they have very similar scores, PerfectRec considers LG NANO90 (LCD) to be very good for gaming, while the Sony X85J (LCD) is good.

Bright Room

6.9
55NANO90
KD-55X85J
7.3
6.3/10
VIEWING ANGLE
5.3/10
7.8/10
SDR BRIGHTNESS SCORE
8.5/10
7.2/10
HDR BRIGHTNESS SCORE
7.1/10
8.0/10
REFLECTIONS SCORE
5.9/10
Although they have very similar scores, PerfectRec considers Sony X85J (LCD) to be good for bright room, while the LG NANO90 (LCD) is only fair.

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How the LG NANO90 (LCD) and the Sony X85J (LCD) compare to other TVs

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Spec Comparison

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LG NANO90 (LCD)Sony X85J (LCD)
LG NANO90 (LCD)Sony X85J (LCD)

GENERAL

Price
$1,099
$1,000
Brand
LGSony
Release Date
March 1, 2021April 3, 2021
Full name
55NANO90KD-55X85J
Screen Size
55"55"
Screen Resolution
4K4K

TV FEATURES

Operating System
webOSAndroid TV
Sound Quality Score
6.4/107.5/10
NextGen Ready
NoYes
HDMI Ports
44
Coax Ports
11

DISPLAY QUALITY SCORES

Picture Quality Score
6.1/107.3/10
Bright Room Score
7/107.4/10
Gaming Score
8/107.6/10
Movies & TV Score
5.6/106.6/10
Sports Score
6.8/107.3/10

PHYSICAL

Dimensions w/o Stand (H x W x D)
28.2" x 48.5" x 1.8"28" x 48.5" x 2.8"
Dimensions with Stand (H x W)
30.7" x 48.5"30.9" x 48.5"
Weight without Stand
39.7 lbs37.1 lbs
VESA Mount
300 x 300300 x 300

DISPLAY

Color Depth
10 bit10 bit
Black Frame Insertion
YesYes
Auto Low Latency Mode
YesYes
Contrast
5.3/107.9/10
Local Dimming
5.2/102.5/10

SOUND

Speaker Setup
2.22.0
Speaker Power
40 W20 W
Dolby Atmos
YesYes
DTS:X
NoUp to DTS Digital Surround, Bypass only

Shopping

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LG NANO90 (LCD)

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Dig into reviews and images

Techradar

John Archer | July 2021
"Here we have HDR pictures that look bright, but also manage to typically hit decently deep black levels.WebOS continues, though, to be one of the easiest to use. Connections are strong for a mid-range TV. Native 4K pictures look crisp and detailed."

Get a great deal on the LG NANO90 (LCD) or the Sony X85J (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 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.

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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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