A comparison of specs, key information, reviews, and best pricing from top retailers
Last updated -- hours ago | Report incorrect information
55UP8000
Company ProductName Specs











KD-55X77L
Company ProductName Specs











What we think

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

The LG UP8000 may be more suited for general use and offers a slightly better overall picture quality. It excels relatively in gaming and sports content, and performs decently in bright rooms. However, it won't perform as well in dark rooms due to its limited contrast and black uniformity. The Sony X77L, on the other hand, is superior for watching sports and has a higher quality sound that supports various formats, including voice commands for easier accessibility. Its picture quality in bright rooms is slightly better than the LG, but like the LG, it also falls short in dark room performance. Both TVs are similarly priced and have a 65-inch screen with LED IPS technology, ensuring wide viewing angles but only modest contrast levels. If better sound and sports viewing are priorities, the Sony might be the favored choice; for gaming and a marginally better overall picture, you may lean towards the LG. 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 UP8000 (LCD)
  • Good reflections
Advantages of the Sony X77L (LCD)
  • Very good motion processing

Key similarities

Chevron down

Picture Quality

5.7
55UP8000
KD-55X77L
5.6
5.10/10
CONTRAST
3.58/10
5.8/10
COLOR VOLUME SCORE
6.3/10
LED
PANEL TYPE
LED
IPS
PANEL SUB-TYPE
IPS
The LG UP8000 (LCD) and Sony X77L (LCD) both have poor picture quality.

Movies & TV

5.3
55UP8000
KD-55X77L
5.2
5.10/10
CONTRAST
3.58/10
5.5/10
BLACK UNIFORMITY
5.8/10
7.5/10
UPSCALING
7.0/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
No
No
DOLBY VISION SUPPORT
No
The LG UP8000 (LCD) and Sony X77L (LCD) are both poor for movies & TV.

Sports

6.6
55UP8000
KD-55X77L
6.8
6.0/10
MOTION PROCESSING
8.5/10
60Hz
REFRESH RATE
60Hz
10.0/10
INPUT LAG SCORE
8.7/10
7.5/10
UPSCALING
7.0/10
6.5/10
SDR BRIGHTNESS SCORE
7.2/10
Yes
HLG SUPPORT
Yes
The Sony X77L (LCD) and LG UP8000 (LCD) are both only fair for sports.

Gaming

5.7
55UP8000
KD-55X77L
5.8
6.7/10
RESPONSE TIME SCORE
5.9/10
10.0/10
INPUT LAG SCORE
8.7/10
6.0/10
MOTION PROCESSING
8.5/10
0.0/100
GAMING LOCAL DIMMING
5.0/100
6.0/10
GAME HDR BRIGHTNESS SCORE
6.4/10
The Sony X77L (LCD) and LG UP8000 (LCD) are both poor for gaming.

Cartoons & Animation

5.9
55UP8000
KD-55X77L
6.0
5.9/10
COLOR GAMUT SCORE
5.9/10
5.8/10
COLOR VOLUME SCORE
6.3/10
6.5/10
SDR BRIGHTNESS SCORE
7.2/10
7.1/10
COLORS OUT OF THE BOX SCORE
8.8/10
6.2/10
GRAY UNIFORMITY
7.7/10
Although they have very similar scores, PerfectRec considers Sony X77L (LCD) to be only fair for cartoons & animation, while the LG UP8000 (LCD) is poor.

News, Talk, & Other TV

6.2
55UP8000
KD-55X77L
6.0
6.5/10
SDR BRIGHTNESS SCORE
7.2/10
7.5/10
UPSCALING
7.0/10
The LG UP8000 (LCD) and Sony X77L (LCD) are both only fair for news, talk, & other TV.

Bright Room

5.9
55UP8000
KD-55X77L
6.0
7.5/10
VIEWING ANGLE
7.7/10
6.5/10
SDR BRIGHTNESS SCORE
7.2/10
5.8/10
HDR BRIGHTNESS SCORE
6.2/10
7.0/10
REFLECTIONS SCORE
6.3/10
Although they have very similar scores, PerfectRec considers Sony X77L (LCD) to be only fair for bright room, while the LG UP8000 (LCD) is poor.

Cost

$480
55UP8000
KD-55X77L
$478
Product imageProduct image

$200

$300

$400

$500

$600

$700

The LG UP8000 (LCD) has a price of $480 and the Sony X77L (LCD) costs $478.
Image of TVs
Let Us Help Find Your Perfect TV
Find your new TV

Give feedback

We’re constantly working to improve.

How the LG UP8000 (LCD) and the Sony X77L (LCD) compare to other TVs

Chevron down

Spec Comparison

Chevron down
LG UP8000 (LCD)Sony X77L (LCD)
LG UP8000 (LCD)Sony X77L (LCD)

GENERAL

Price
$480
$478
Brand
LGSony
Release Date
July 3, 2021July 3, 2023
Full name
55UP8000KD-55X77L
Screen Size
55"55"
Screen Resolution
4K4K

TV FEATURES

Operating System
webOSGoogle TV
Sound Quality Score
6.7/106.1/10
NextGen Ready
NoNo
HDMI Ports
33
Coax Ports
11

DISPLAY QUALITY SCORES

Picture Quality Score
5.8/105.6/10
Bright Room Score
6/106/10
Gaming Score
5.8/105.8/10
Movies & TV Score
5.4/105.2/10
Sports Score
6.6/106.9/10

PHYSICAL

Dimensions w/o Stand (H x W x D)
28.1" x 48.6" x 2.3"28.5" x 49" x 2.9"
Dimensions with Stand (H x W)
30.4" x 48.6"31.1" x 49"
Weight without Stand
30.9 lbs33.8 lbs
VESA Mount
300 x 300300 x 300

DISPLAY

Color Depth
10 bit10 bit
Black Frame Insertion
NoYes
Auto Low Latency Mode
YesYes
Contrast
5.1/103.6/10
Local Dimming
2.5/103/10

SOUND

Speaker Setup
2.02.0
Speaker Power
20 W20 W
Dolby Atmos
YesYes
DTS:X
NoUp to DTS Digital Surround, Bypass only

Shopping

Chevron down

LG UP8000 (LCD)

See more

Dig into reviews and images

Home Media Entertainment

Stratos Kampourogiannis | July 2021
"What we liked on this one was the very sharp 4K images it could display, its good up-scaling capabilities, nice viewing angles and extremely low input lag. Lastly the new webOS 6.0 is great even if it needs some time to get your bearings while the redesigned Magic Remote feels fresh even if functionality remains the same."

Sony X77L (LCD)

See more

Dig into reviews and images

HDTVs and more

Milton Clark | September 2023
"For an entry-level model, Sony’s X77L is a decent 4K TV. It’s color reproduction, along with crisp and clean picture images revealed plenty of detail and clarity thanks in part to Sony’s excellent video processing."

Get a great deal on the LG UP8000 (LCD) or the Sony X77L (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.

Give feedback

We're constantly perfecting our model

TV guides you might be interested in

Chevron down

FAQs

Chevron down

FAQs about TVs

Questions about PerfectRec >

Why trust us

Chevron down
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
131,430
Recommendations made
19,715
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

Color LTT LogoGeekwire logo9to5 Mac logoPhone Arena LogoColor Daring Fireball logo