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Updated January 10, 2024·
The LG A2 excels in dark room conditions and offers superior movie watching experiences with excellent contrast and color performance. However, it isn't as bright, making it less ideal for sunny rooms, and its gaming performance is good, but not the best available. The Sony X90K, on the other hand, is better for gaming due to a higher refresh rate and lower input lag. It also performs well in bright rooms compared to the LG A2, and is more affordable. However, its picture quality, especially in dark rooms, doesn't match that of the LG A2. Both TVs support the main high dynamic range formats, except HDR10+. Consider if gaming and bright room performance, or superior cinematic experience in dark rooms, is your priority when deciding which TV to purchase. 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 A2 (OLED)
- Excellent for dark room
- Excellent for movies & TV
- Very good for sports
- Very good for use as monitor
- Excellent viewing angle
- Very good reflections
Advantages of the Sony X90K (LCD)
- Very good for bright room
- Very good for gaming
- Best in class for upscaling
- Best in class motion processing
Key differences
Picture Quality
8.7
7.7
10.00/10
CONTRAST
7.38/10
7.5/10
COLOR VOLUME SCORE
7.8/10
WOLED
PANEL TYPE
LED FALD
WBC
PANEL SUB-TYPE
TBD
The LG A2 (OLED) has very good picture quality, while the Sony X90K (LCD) has good picture quality.
Movies & TV
9.2
7.5
10.00/10
CONTRAST
7.38/10
10.0/10
BLACK UNIFORMITY
6.1/10
7.5/10
UPSCALING
10.0/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
No
Yes
DOLBY VISION SUPPORT
Yes
The LG A2 (OLED) is excellent for movies & TV, while the Sony X90K (LCD) is good.
The LG A2 OLED TV excels in movie and cinematic watching due to its perfect contrast and superior black uniformity enhancing dark scenes, along with wider viewing angles, while the Sony X90K LCD TV has good color accuracy and contrast but is limited by poorer black uniformity and narrower viewing angles. Additionally, the LG A2 provides excellent local dimming, compared to the Sony X90K's fair local dimming, further boosting high-quality cinematic visuals.
Sports
8.2
7.1
8.0/10
MOTION PROCESSING
10.0/10
60Hz
REFRESH RATE
120Hz
8.0/10
INPUT LAG SCORE
7.0/10
7.5/10
UPSCALING
10.0/10
7.1/10
SDR BRIGHTNESS SCORE
8.7/10
Yes
HLG SUPPORT
Yes
The LG A2 (OLED) is very good for sports, while the Sony X90K (LCD) is good.
The LG A2 excels in watching sports due to its instantaneous response time and good motion processing capabilities that minimize blur, while its OLED technology provides wide viewing angles ensuring a clear picture regardless of seating position. On the other hand, the Sony X90K, despite having slightly inferior motion handling, offers excellent reflection handling and good gray uniformity, which can be important in brightly lit environments where glare and consistent screen color are concerns.
Gaming
7.1
8.1
9.3/10
RESPONSE TIME SCORE
8.0/10
8.0/10
INPUT LAG SCORE
7.0/10
8.0/10
MOTION PROCESSING
10.0/10
100.0/100
GAMING LOCAL DIMMING
76.0/100
6.9/10
GAME HDR BRIGHTNESS SCORE
8.6/10
The Sony X90K (LCD) is very good for gaming, while the LG A2 (OLED) is good.
The LG A2 has an OLED display, which generally provides an excellent response time, contributing to its good gaming performance, while the Sony X90K, despite being an LCD TV, offers a higher refresh rate and solid motion processing, both key factors for very good gaming. The Sony also likely benefits from a combination of respectable input lag and response time, assisting its performance during gaming sessions.
Cartoons & Animation
8.7
8.0
8.1/10
COLOR GAMUT SCORE
7.7/10
7.5/10
COLOR VOLUME SCORE
7.8/10
7.1/10
SDR BRIGHTNESS SCORE
8.7/10
8.8/10
COLORS OUT OF THE BOX SCORE
7.0/10
9.8/10
GRAY UNIFORMITY
6.6/10
The LG A2 (OLED) and Sony X90K (LCD) are both very good for cartoons & animation, though the LG A2 (OLED) is somewhat better.
The LG A2 OLED is better for cartoons and animation due to its excellent colors out of the box and color gamut, ensuring vibrant and true-to-life hues without the need for calibration. In contrast, the Sony X90K LCD also performs well, but with slightly less stellar performance in these areas, making the LG A2 the stronger choice for those particular aspects.
Bright Room
7.0
8.0
9.1/10
VIEWING ANGLE
5.4/10
7.1/10
SDR BRIGHTNESS SCORE
8.7/10
6.7/10
HDR BRIGHTNESS SCORE
8.3/10
8.6/10
REFLECTIONS SCORE
6.3/10
The Sony X90K (LCD) is very good for bright room, while the LG A2 (OLED) is good.
The Sony X90K performs better in bright rooms as it has higher SDR and HDR brightness, which counteracts glare more effectively, while the LG A2, despite its excellent reflections handling, offers lower brightness levels which may not be as suitable for brightly lit environments. Both TVs handle reflections well, but the superior brightness of the Sony X90K, partnered with its decent contrast and color capabilities, makes it a better fit for a bright room compared to the OLED LG A2, which has perfect contrast and good color performance but may struggle with maintaining visibility in very bright settings.
Cost
$1,000
$898
$400
$600
$800
$1,000
$1,200
$1,400
$1,600
The LG A2 (OLED) has a price of $1,000 and the Sony X90K (LCD) costs $898.
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Key similarities
News, Talk, & Other TV
8.6
8.7
7.1/10
SDR BRIGHTNESS SCORE
8.7/10
7.5/10
UPSCALING
10.0/10
The Sony X90K (LCD) and LG A2 (OLED) are both very good for news, talk, & other TV.
The LG A2 excels at upscaling and has exceptional contrast due to its OLED technology, ensuring clear and detailed images for news and TV programs even when the content is not high definition. On the other hand, the Sony X90K offers very good SDR brightness, making it more suitable for well-lit rooms, and also performs very well at upscaling content, presenting vibrant colors that don't require immediate fine-tuning.
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How the LG A2 (OLED) and the Sony X90K (LCD) compare to other TVs
Spec Comparison
 |  | |
| LG A2 (OLED) | Sony X90K (LCD) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,000 | $898 | ||
Brand | |||
Brand | LG | Sony | |
Release Date | |||
Release Date | April 2, 2022 | May 1, 2022 | |
Full name | |||
Full name | 55A2 | XR-55X90K | |
Screen Size | |||
Screen Size | 55" | 55" | |
Screen Resolution | |||
Screen Resolution | 4K | 4K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | webOS | Android TV | |
Sound Quality Score | |||
Sound Quality Score | 7/10 | 8/10 | |
NextGen Ready | |||
NextGen Ready | No | Yes | |
HDMI Ports | |||
HDMI Ports | 3 | 4 | |
Coax Ports | |||
Coax Ports | 1 | 1 | |
DISPLAY QUALITY SCORES | |||
|---|---|---|---|
Picture Quality Score | |||
Picture Quality Score | 8.8/10 | 7.7/10 | |
Bright Room Score | |||
Bright Room Score | 7.1/10 | 8/10 | |
Gaming Score | |||
Gaming Score | 7.2/10 | 8.1/10 | |
Movies & TV Score | |||
Movies & TV Score | 9.2/10 | 7.5/10 | |
Sports Score | |||
Sports Score | 8.2/10 | 7.2/10 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 27.9" x 48.3" x 1.8" | 28" x 48.5" x 2.8" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 30.4" x 48.3" | 29.2" x 48.6" | |
Weight without Stand | |||
Weight without Stand | 31.5 lbs | 38.5 lbs | |
VESA Mount | |||
VESA Mount | 300 x 200 | 300 x 300 | |
DISPLAY | |||
|---|---|---|---|
Color Depth | |||
Color Depth | 10 bit | 10 bit | |
Black Frame Insertion | |||
Black Frame Insertion | No | Yes | |
Auto Low Latency Mode | |||
Auto Low Latency Mode | Yes | Yes | |
Contrast | |||
Contrast | 10/10 | 7.4/10 | |
Local Dimming | |||
Local Dimming | 10/10 | 7.2/10 | |
SOUND | |||
|---|---|---|---|
Speaker Setup | |||
Speaker Setup | 2.0 | 2.0 | |
Speaker Power | |||
Speaker Power | 20 W | 30 W | |
Dolby Atmos | |||
Dolby Atmos | Yes | Yes | |
DTS:X | |||
DTS:X | No | Up to DTS Digital Surround, Bypass only | |
Shopping
LG A2 (OLED)
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Dig into reviews and images
Techradar
Al Griffin | August 2022
"Movie fans will find a lot here to love, and the A2 series’ low prices compared with other OLED TVs will keep their wallets happy. Images had the deep blacks and detailed shadows typical of the best 4K TVs, while colors looked both fully saturated and clean. Also, the A2’s out-of-box picture performance in Filmmaker mode was mostly accurate, requiring only slight adjustments to optimize brightness, color, and contrast."
Sony X90K (LCD)
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Dig into reviews and images
Techradar
Al Griffin | December 2022
"As Sony’s next-to-flagship LCD TV, the X90K series delivers impressive performance for the price. The XR90K had fairly accurate out-of-box color. The TV’s multi-position stand lets you either set the screen flush with any stand its mounted on or elevate it to clear space for a soundbar. With the latter option, you get around 3 inches of clearance enough to accommodate most soundbars. The X90K’s excellent suite of gaming features ranks it up there with the best 120 Hz 4K TVs."
Get a great deal on the LG A2 (OLED) or the Sony X90K (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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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.
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