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Updated January 10, 2024·
If you are looking for a TV with better all-around picture quality, especially in dark environments, the LG B2 OLED is a solid choice. It offers excellent contrast and black uniformity, making it great for movies. However, the B2 may not perform as well in very bright rooms due to its lower brightness capabilities. On the other hand, the Sony X90K, being an LCD TV, offers more brightness which can be a better choice for viewing in well-lit environments. While its picture quality is still good, it won't match the deep blacks of the LG B2 OLED. Both TVs are similarly priced, support a 120Hz refresh rate, and have similar sound quality. They each have 4 HDMI ports and support for HDR content, with the LG B2 supporting Dolby Vision which is great for streaming. In summary, go for the LG B2 if you prioritize superior contrast and black levels, and prefer watching in a darkened room. Choose the Sony X90K if you want a TV that can handle a brighter room and are okay with good but less superior dark scene performance. 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 B2 (OLED)
- Excellent for dark room
- Excellent for movies & TV
- Very good for sports
- Very good for use as monitor
- Best in class viewing angle
- Excellent reflections
Advantages of the Sony X90K (LCD)
- Very good for bright room
- 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
7.1/10
COLOR VOLUME SCORE
7.8/10
WOLED
PANEL TYPE
LED FALD
WBC
PANEL SUB-TYPE
TBD
The LG B2 (OLED) has very good picture quality, while the Sony X90K (LCD) has good picture quality.
Movies & TV
9.1
7.5
10.00/10
CONTRAST
7.38/10
10.0/10
BLACK UNIFORMITY
6.1/10
8.0/10
UPSCALING
10.0/10
Yes
HDR10 SUPPORT
Yes
No
HDR10+ SUPPORT
No
Yes
DOLBY VISION SUPPORT
Yes
The LG B2 (OLED) is excellent for movies & TV, while the Sony X90K (LCD) is good.
The LG B2, being an OLED TV, excels in watching movies and cinematic TV because of its perfect black uniformity and infinite contrast ratio, ensuring deep blacks and high detail in dark scenes. In comparison, the Sony X90K LCD has good contrast and local dimming capabilities, but lacks the superior black uniformity and contrast of the LG B2, resulting in less pronounced dark scenes and slightly narrower viewing angles which may affect group viewing experiences.
Sports
8.4
7.1
8.0/10
MOTION PROCESSING
10.0/10
120Hz
REFRESH RATE
120Hz
8.7/10
INPUT LAG SCORE
7.0/10
8.0/10
UPSCALING
10.0/10
7.6/10
SDR BRIGHTNESS SCORE
8.7/10
Yes
HLG SUPPORT
Yes
The LG B2 (OLED) is very good for sports, while the Sony X90K (LCD) is good.
The LG B2 is exceptional for sports due to its OLED screen type, resulting in superior response time, wider viewing angles, and handling reflections well, making it very good for fast action and larger groups. In contrast, the Sony X90K, while still good for sports, has an LCD screen with a slower response time and more limited viewing angles, which may affect fast-paced content and off-center viewing.
Gaming
8.9
8.1
10.0/10
RESPONSE TIME SCORE
8.0/10
8.7/10
INPUT LAG SCORE
7.0/10
8.0/10
MOTION PROCESSING
10.0/10
100.0/100
GAMING LOCAL DIMMING
76.0/100
7.3/10
GAME HDR BRIGHTNESS SCORE
8.6/10
The LG B2 (OLED) and Sony X90K (LCD) are both very good for gaming, though the LG B2 (OLED) is somewhat better.
The LG B2 is exceptional in providing a fast response time and very low input lag, which are crucial for gaming, whereas the Sony X90K also performs very well in these areas, ensuring smooth motion and responsive gameplay. Both TVs support a high refresh rate and are well-suited for gaming, but the LG B2 stands out with its OLED technology, offering enhanced responsiveness.
Cartoons & Animation
8.6
8.0
8.1/10
COLOR GAMUT SCORE
7.7/10
7.1/10
COLOR VOLUME SCORE
7.8/10
7.6/10
SDR BRIGHTNESS SCORE
8.7/10
8.5/10
COLORS OUT OF THE BOX SCORE
7.0/10
9.2/10
GRAY UNIFORMITY
6.6/10
The LG B2 (OLED) and Sony X90K (LCD) are both very good for cartoons & animation, though the LG B2 (OLED) is somewhat better.
The LG B2 (OLED) excels in watching cartoons and animation due to its perfect blacks, which allows it to display deep colors straight out of the box and a wide color gamut that makes the colors pop. The Sony X90K (LCD), while having slightly less impressive contrast due to its LCD nature, still provides good color accuracy out of the box and a decent color gamut, ensuring that animations look vibrant.
Cost
$1,597
$998
$500
$1,000
$1,500
$2,000
$2,500
The LG B2 (OLED) has a price of $1,597 and the Sony X90K (LCD) costs $998.
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Key similarities
News, Talk, & Other TV
8.9
8.7
7.6/10
SDR BRIGHTNESS SCORE
8.7/10
8.0/10
UPSCALING
10.0/10
The LG B2 (OLED) and Sony X90K (LCD) are both very good for news, talk, & other TV.
The LG B2 OLED stands out for its very good upscaling capability and vibrant colors straight out of the box, making it a strong choice for watching news and TV programs in a variety of content resolutions. Conversely, the Sony X90K LCD also delivers very good performance in upscaling and maintains strong SDR brightness, which benefits viewing in well-lit environments, although the colors might not be as immediately striking as the LG B2 without some adjustments.
Bright Room
7.5
8.0
9.8/10
VIEWING ANGLE
5.4/10
7.6/10
SDR BRIGHTNESS SCORE
8.7/10
7.0/10
HDR BRIGHTNESS SCORE
8.3/10
9.3/10
REFLECTIONS SCORE
6.3/10
Although they have very similar scores, PerfectRec considers Sony X90K (LCD) to be very good for bright room, while the LG B2 (OLED) is good.
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How the LG B2 (OLED) and the Sony X90K (LCD) compare to other TVs
Spec Comparison
 |  | |
| LG B2 (OLED) | Sony X90K (LCD) |
GENERAL | |||
|---|---|---|---|
| Price | |||
$1,597 | $998 | ||
Brand | |||
Brand | LG | Sony | |
Release Date | |||
Release Date | April 2, 2022 | May 2, 2022 | |
Full name | |||
Full name | OLED65B2 | XR-65X90K | |
Screen Size | |||
Screen Size | 65" | 65" | |
Screen Resolution | |||
Screen Resolution | 4K | 4K | |
TV FEATURES | |||
|---|---|---|---|
Operating System | |||
Operating System | webOS | Android TV | |
Sound Quality Score | |||
Sound Quality Score | 7.5/10 | 8/10 | |
NextGen Ready | |||
NextGen Ready | No | Yes | |
HDMI Ports | |||
HDMI Ports | 4 | 4 | |
Coax Ports | |||
Coax Ports | 1 | 1 | |
DISPLAY QUALITY SCORES | |||
|---|---|---|---|
Picture Quality Score | |||
Picture Quality Score | 8.7/10 | 7.7/10 | |
Bright Room Score | |||
Bright Room Score | 7.5/10 | 8/10 | |
Gaming Score | |||
Gaming Score | 9/10 | 8.1/10 | |
Movies & TV Score | |||
Movies & TV Score | 9.2/10 | 7.5/10 | |
Sports Score | |||
Sports Score | 8.4/10 | 7.2/10 | |
PHYSICAL | |||
|---|---|---|---|
Dimensions w/o Stand (H x W x D) | |||
Dimensions w/o Stand (H x W x D) | 32.8" x 57" x 1.8" | 32.8" x 57.2" x 2.8" | |
Dimensions with Stand (H x W) | |||
Dimensions with Stand (H x W) | 34.2" x 57" | 34" x 57.2" | |
Weight without Stand | |||
Weight without Stand | 52.9 lbs | 50.5 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 | Yes | 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 B2 (OLED)
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Tom's guide
Nick Pino | March 2023
"The LG B2 OLED pairs lush, saturated colors and perfect contrast with a 120Hz screen, HDMI 2.1 ports and a great smart TV platform. The LG B2 OLED is an ideal alternative to the LG C2 OLED for folks who want a taste of OLED life without the sticker price that usually comes with it. The LG B2 OLED does a lot right in terms of performance, color saturation is wonderful and contrast is second-to-none. Not only did color saturation and off-axis viewing impress me, harder to quantify specs like motion processing and upscaling really blew me away as well."
Sony X90K (LCD)
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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 B2 (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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