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Sony A90K vs LG C2 OLED TV Review (XR-42A90K vs OLED42C2, XR-48A90K vs OLED48C2)

by on October 18, 2022
 



Sony A90K vs LG C2 OLED TV Review

If you are searching OLED TV that comes with small screen sizes, especially 42 inches, there are only two models that available in the market, which is Sony A90K and LG C2. Except them, the smallest screen size of each model is 55 inches. There may be the LG A2 that also have 48 inches screen size, but it doesn’t come in 42 inches. Sony A90K is the second top model of Sony’s 2022 OLED TV lineup. It sits between the A95K that comes with blue OLED or QD-OLED technology and A80K that comes with white OLED technology. The A90K itself comes with white OLED panel technology. On the other hand, the LG C2 is the mid-end model of LG’s 2022 OLED TV lineup. In this lineup, it sits between the LG G2 and LG B2. Just like all models of LG OLED TVs, the LG C2 also comes with white OLED technology.

Although they use the same white-OLED, but LG C2 is advertised to be used new Evo OLED technology while the Sony A90K isn’t advertised to have Evo OLED panel. You need to know that Evo OLED panel is first introduced by LG in last year that found on LG G1. In this year, beside the LG G2 as the successor of LG G1, there is also LG C2 that also use LG C2. And you need to know that the Evo OLED is advertised can get brighter peak brightness than a traditional white-OLED found on LG B2 and A2 or Sony A80K and A90K.

Meanwhile, in the market, the Sony A90K is only available on 2 screen sizes variant only, which are 42 inches (XR-42A90K) and 48 inches (XR-A90K). On the other hand, the LG C2 comes in a lot of screen size variant including 42 inches (XR-42A90K), 48 inches (XR-48A90K), 55 inches (XR-55A90K), 65 inches (XR-65A90K), 77 inches (XR-77A90K), and 83 inches (XR-83A90K). The LG C2 is even an OLED TV that comes with the most screen sizes variant. Meanwhile, with the same screen size (XR-42A90K vs OLED42C2, XR-48A90K vs OLED48C2), the Sony A90K is sold about one hundred dollars more expensive than the LG C2. But of course, their price is not fixed and could still change at any time. So, which is superior and a better choice between these OLED TVs?

Check the Latest Price
Sony A90K LG C2 (OLED C2)
42 inches Sony XR-42A90K on Amazon LG OLED42C2PUA on Amazon
48 inches Sony XR-48A90K on Amazon LG OLED48C2PUA on Amazon
55 Inches LG OLED55C2PUA on Amazon
65 Inches LG OLED65C2PUA on Amazon
77 inches LG OLED77C2PUA on Amazon
83 Inches LG OLED83C2PUA on Amazon

Sony A90K vs LG C2 Side by Side Comparison

Sony A90K vs LG C2 Specification

Specs Sony A90K LG C2 OLED
Screen Sizes Available 42” (XR-42A90K), 48” (XR-48A90K), 42” (OLED42C2PUA), 48” (OLED48C2PUA), 55” (OLED55C2PUA), 65” (OLED65C2PUA), 77” (OLED77C2PUA), 83” (OLED83C2PUA)
Resolution 4K (3840 x 2160) 4K (3840 x 2160)
Panel Technology White-OLED Panel Evo OLED Panel (White OLED)
Backlight Technology No Backlight No Backlight
Local Dimming Technology Pixel Dimming Level Pixel Dimming Level
Processor Cognitive Processor XR Alpha 9 Gen 5 AI Processor 4K
HDR Supports HDR10, HLG, Dolby Vision HDR10, HLG, Dolby Vision
Native Refresh rate 120 Hz 120 Hz
Variable Refresh Rate Yes (GSync, HDMI Forum) Yes (FreeSync, GSync, HDMI Forum)
Smart TV Platform Google TV 10 WebOS22
Apps Google Home, Amazon Alexa, Apple AirPlay LG Thinq AI, Google Home, Amazon Alexa
Remote Sony Voice Remote 2022 LG Magic Remote 2022
Audio Setup 2.1 channel 2.0 channel
Audio Power Output 10 watt + 10 Watt + 5 watts 20 watts
Speaker Technology Acoustic Surface Front-Firing Speaker
HDMI Ports 4 4
USB Ports 2 3
Wireless Connectivity Bluetooth, Wi-Fi Bluetooth, Wi-Fi

Dark Room Performance

If we discuss about dark room performance, this of course cannot be separated from contrast ratio, black uniformity, and local dimming feature of a TV. This is caused aspects are very influential on the performance of a TV in showing dark scene. As we have known, all OLED TV that certainly is including the LG C2 and Sony A90K have infinite contrast ratio, nearly perfect black uniformity, and pixel dimming level. This is caused each pixel of OLED panel can emit its own light, so it doesn’t need a backlight. That is not only that, each pixel of OLED panel can also switch on/off or dim individually without affected by the condition of other pixels surrounding. That’s why the OLED TVs have pixel dimming level.  This is equivalent to LED TV with full array local dimming that has the number of dimming zones is same to the number of pixels.

LED Vs OLED Black Dark Room

The image is only an illustration

So, when they are showing a black object in a bright scene, only pixels in black area that is switched off while the rest is still on. As the result, black produced by them is nearly perfect. And wherever the location of black object, it can be shown with the same depth level. On the contrary, when they are showing a bright object in a dark scene, pixels in a bright object is switched on while the rest is still off. As the result, bright object can be shown without blooming around it. And of course, this makes their performance in a dark room is outstanding. Dark scene of images can be shown excellently on their screen without black crush.

Winner: Draw

Bright Room Performance

On the contrary, if we discuss about their bright room performance, this cannot be separated from their SDR peak brightness and their performance in handling reflection.  And for this case, both of the LG C2 and Sony A90K have outstanding reflection handling. Their anti-reflective coating and glossy finish can reduce the intensity of direct reflection significantly, which is great.

While their reflection handling is equally great, the LG C2 have brighter SDR peak brightness than the Sony A90K. With real SDR content, the LG C2 can get about 425 nits. On the other hand, the Sony A90K gets about 250 nits only. However, their peak brightness actually varies depends on the content. On 2% and 10 % white window where they gets the brightest, the LG C2 gets about 410 nits while the Sony A90K gets about 350 nits. On 25% white window, the peak brightness of the LG C2 drops to about 380 nits while peak brightness of the A90K is still consistent at about 350 nits. Meanwhile on 100% white window test where they get the lowest, the LG C2 gets about 180 nits only while the A90K gets about 120 nits only.

With peak brightness reached by them, peak brightness of the LG C2 actually is bright enough to fight the glare in most bright room. As long as you don’t use it in a very bright room with a lot of lights or sunny windows, you will not be distracted by the glare. On the other hand, peak brightness of the Sony A90K is only bright enough to fight the glare in moderate to dim rooms. Although it has excellent reflection handling, but in a room with a lot of lights, you may get an issue with a glare.

Winner: LG C2

Picture Clarity

As we see on comparison table above, as their image processor, the LG C2 is powered by Alpha 9 Gen 5 4K Image processor while the Sony A90K is powered Cognitive Processor XR. Both of these image processors have great 4K Up-scaling engine that can up-scale lower resolution to 4K excellently. For the LG C2, no matter the resolution of the source, they can up-scaled to 4K resolution excellently. Even DVD movies that have 480p resolution looks smooth in 4K resolution with a lot of small details are still preserved well. And the higher resolution of the source, the more small details will be preserved well. Meanwhile, for the Sony A90K, when the source have resolution 720p, its performance is not much different to the LG C2. However, it will be an issue with 480p source. The image cannot be shown at properly aspect ratio, even if you adjusting the aspect ratio setting on the TV. This actually is unusual for Sony TVs and may be caused by a bug with the current firmware. Expected, this issue can be solved by an update firmware in the future.

Winner: LG C2

Side Viewing Angle

OLED vs LED Side Viewing Angle

The image is only an illustration

Just like other models of OLED TV, the LG C2 and Sony A90K also have extremely wide viewing angle coverage. Both can maintain black up to extremely wide angle, about 70 degrees off center and front. So, even if you watch TV from extremely wide angle, black of image will look remain deep, as deep as from the front and center. Additionally, both also can maintain the brightness level of images up to wide angle, about 70 degrees off center of the LG C2 and about 60 degrees off center for the A90K. However, in maintaining color accuracy, their coverage is not as wide as brightness level and black level. On the screen of the LG C2, color will shift started at about 27 degrees and look washed out started at about 65 degrees. Meanwhile, on their screen of the Sony A90K, color will shift started at about 30 degrees off center and look washed out started at about 60 degrees off center.

This means, when viewed from the side, the images displayed on their screen will look remain consistent, not much different when viewed from the front and center. Meanwhile, the difference between them is may caused by the panel variance.

Winner: Draw

Color Reproduction

Just like other models of OLED TV, the Sony A90K and the LG C2 also have superb color gamut. Their color coverage in DCI P3 color space is nearly perfect, as they can cover about 99% in both DCI P3 uv and DCI P3 xy color space. This is great for most current HDR content where most of them are usually mastered in DCI P3 color space. This means, almost all color of HDR images mastered in DCI P3 color space can be shown accurately on their screen. On the other hand, although they cannot show the full range of greens and cyan, but their color coverage in Rec.2020 is also still good. In Rec.2020 xy, the A90K cover around 74% and the LG C2 cover around 72%, while in Rec.2020 uv, the Sony A90K can cover around 79% and the LG C2 cover around 76%. Although not all, at least most color of HDR content mastered in Rec.2020 like Dolby Vision can be shown accurately on their screen. But even so, in some certain scene, their incomplete color may cause some loss of fine details.

Sadly, due the use of white sub-pixel, both can produce bright saturated colors. This means, bright colors cannot be shown as bright as pure white, so when they are showing very bright scene, pure white will look much brighter than color. This can cause some loss of fine details in certain scenes. However, except very bright color, they can show their wide color gamut at their entire brightness range. Shades of dark colors can be shown fairly well thanks to their infinite contrast ratio.

Both of them also have great color gradient overall. But compare between them, the Sony A90K is better than the LG C2. On the screen of the C2 OLED, there are some noticeable bandings, especially in shades of blues and reds and also a bit in greens. However, in normal content, this should not hard to notice. Meanwhile, on the screen of the A90K, there is only a bit of banding in all colors that should not be noticeable. The banding on each of colors produced by the A90K is even less than banding on the gray produced by the LG C2 that has the least banding. However, if you feel that banding is still distracted, both actually have a feature called “Smooth Gradation” that can be used for reducing banding. Sadly, this only work well with low quality content, while with high quality content, this precisely can cause some loss of fine details in certain scenes.

Winner: Sony A90K

Motion Handling

Just like other model of OLED TVs, performance of the LG A90K and LG C2 of handling motion is not much different to them. And the performance of them is great and also not much different. They have nearly instantaneous pixel response time, which is about 3 ms. This is much lower than the lowest response time of LED TV. And, thanks to their nearly instantaneous pixel response time, fast motion images looks very smooth and clear on their screen. But on the other hand, the nearly instantaneous pixel response time can cause persistence blur. Additionally, their nearly instantaneous pixel response time can cause each frame of low frame rate content like 24p movies is held on longer, making them appear to stutter. Fortunately, both have an optional BFI mode that can help to reduce the issue that caused by their instant response time like image stuttering or persistence blur.

Since OLED panel doesn’t have backlight, to dim their screen, they don’t use PWM dimming system like LED TVs. As the result, their screen is almost flicker-free, which is great. But as we have known, the screen flicker is sometimes required reduce image stuttering and persistence blur. And for this case, both of LG C2 and Sony A90K have an optional BFI mode that can make their screen flicker at certain frequency, especially that match to the frame rate of content. But sadly, both of the Sony A90K and LG C2 OLED only support 60 Hz BFI mode, which means it only can flicker at 60 Hz only. This is good for 60 fps content, but enabling this feature with 120 fps content can cause some images duplication. So, with 120 fps content, this would be better if this feature is disabled.

Basically, both of the Sony A90K and LG C2 have native 120 Hz refresh rate panel. This means, they supports any content with frame rate up to 120 Hz.  That is not only that, they also support VRR (Variable Refresh Rate) technology that can work well at wide range of frame rate, below 20 Hz to 120 Hz. Meanwhile, in order they still work with low refresh rate, both of them also support (LFC) Low Frame Rate Compensation). A bit advantage of the LG C2 is that its VRR technology is compatible with FreeSync, GSync, and HDMI Forum VRR while VRR technology of the Sony A90K is only compatible with GSync and HDMI Forum VRR. This means, the VRR technology of the A90K cannot work with FreeSync device like a PC with older AMD Graphic Card and X Box One Series. Fortunately, the latest AMD Graphic Card supports HDMI Forum VRR, so it can still work with them.

Winner: Draw

Inputs

As their main connectivity, the LG C2 and Sony A90K OLED TV are equipped with 4 HDMI ports. All of their HDMI ports supports most of popular HDMI formats like HDMI 2.0 Full Bandwidth, CEC, ALLM, and HDCP 2.2. Additionally, one of their HDMI ports also serves as HDMI ARC that also support eARC (LG C2 on HDMI 2 and Sony A90K on HDMI 3), allowing them can passthrough high quality audio format from audio source to your home theater system or Soundbar. Both also have HDMI 2.1 Class bandwidth that can cover up to 48 Gbps of bandwidth. a bit difference is about the number of their HDMI ports that support HDMI 2.1. For the LG C2 OLED, all of its HDMI ports support HDMI 2.1 while on Sony A90K, there are only two HDMI ports (HDMI 3 and 4) that support HDMI 2.1. And unfortunately, HDMI ARC of the A90K is also on HDMI 3. So, if you have a soundbar and connect it to your TV on HDMI ARC, practically, there is only 1 HDMI 2.1 that is left. This will be a problem if you have more than one HDMI 2.1 devices.

OLED vs LED TV Motion Blur

The image is only an illustration

Beside support most of popular HDMI formats, their HDMI ports also supports most resolution at 120 Hz and 60 Hz. But special for the A90K, it doesn’t support 1440p @ 120 Hz, which means it cannot display properly this content. Additionally, their HDMI ports also have low input lags in Game mode. No matter the resolution, with 60 fps games, input lag of the C2 OLED is about 11 ms while input lag of the A90K is about 17 ms. Meanwhile, with 120 fps games, their input lags is even much lower than with 60 fps games, which is about 9 ms for the A90K and about 6 ms for the LG C2. Ignoring their difference, their input lag is low enough to play nay games responsively without delay, even for Sony A90K with 60 fps games where its input lags is higher than others.

While they have the same number of HDMI ports, the Sony A90K has one more USB ports than LG C2. If the C2 OLED only have 2 USB ports where all of them are USB 2.0, the A90K have 3 USB ports where two of them are USB 2.0 and one port is USB 3.0. Both also have 1 Digital Audio Out (optical), 1 Tuner In (support ATSC 3.0), and 1 Ethernet port. Special for the A90K, it also has 1 Composite In (Require and adapter but adapter is not included) and IR In for IR Blaster. And for wireless connectivity, they both are equipped with built-in Wi-Fi and Bluetooth.

Winner: LG C2

Built-In Audio System

As their built-in audio system, the LG C2 is equipped with 2.0 channel speaker setup with each if channel have 10 watts of audio power. To deliver sound, it uses a tradition down-firing speaker installed on the bottom side of the TV. Meanwhile, Sony A90K use the Sony’s proprietary sound technology called “acoustic Surface”. It has 2.1 audio setup, as each channel have 10 watts of audio power and its subwoofer has 5 watts of audio power. As we have known, to reproduce sound, the Sony’s Acoustic Surface technology use the screen of TV that’s driven by an actuator instead of the use of traditional speaker. And since the A90K has 2.1 channel, there are two actuators as the driver. This technology is so that the sound produce is seem like coming from more accurate pinpoint.

Winner: Sony A90K

Smart TV Platform

As their smart TV platform, the Sony A90K runs Google TV 10 while the OLED C2 runs WebOS 22. Both of these smart TV platforms run smoothly on them. Both also have a simple design and easy to use. On both, there are almost all streaming platform like Netflix, Prime Video, HotStar, etc are provided.  Additionally, if your favorite streaming app is not provided on their pre-installed apps, you can download it from their apps store. As we have known, the WebOS have an app store called “LG Apps Store” while Google TV has an app store called “Google Play”. But even so, since Google TV is supported by many more developers, apps provide is also more complete than what provided by LG Apps Store. Additionally, both of these smart TV platforms also support voice navigation. With webOS 22, you can make voice command with its won platform called LG AI Thinq or third-party platform like Google Assistant or Amazon Alexa. On the other hand, on Sony A90K, you can also make a voice command via Google Assistant or Amazon Alexa. Both of them also have built-in cast apps like ChromeCast or Apple Air Play.

And as their controller, each of the Sony A90K and LG C2 are equipped by smart remote from each of their manufacturer. The remote of A90K is simple but have great selection of features and well built-in. Its buttons is backlit. And they are automatically activated by an ambient light sensor on the remote when the ambient light is too dark. There is a built-in microphone on the remote and also on the TV that allows you to make a voice command. And beside standard buttons like Volume Buttons, Power Buttons, Direction Buttons, Number Buttons, etc, this remote also have 5 dedicated buttons for Google Assistant, Bravia Core, Netflix, Disney+, and Amazon Prime Video. So, you don’t need enter the menu if you want to launch this apps. Sadly, this remote cannot act as universal remote.

On the other hand, just like other model of LG’s 2022 LED TV, the LG C2 also comes with LG’s magic remote. Just like the Sony Remote, it also has a built-in microphone for voice command. Beside standard buttons, it also has 6 dedicated buttons for Netflix, Prime Video, Disney+, LG Channel, Amazon Alexa, and Google Assistant. And the excellent feature of LG magic remote is about their “point and click” feature and a clickable scroll wheel on the center of the remote, making it easier to navigate through the menu. This remote can also act as universal remote, allowing you to control basic settings of your other remote with this remote, even if they don’t support HDMI CEC.

Winner: Draw

Check the Latest Price
Sony A90K LG C2 (OLED C2)
42 inches Sony XR-42A90K on Amazon LG OLED42C2PUA on Amazon
48 inches Sony XR-48A90K on Amazon LG OLED48C2PUA on Amazon
55 Inches LG OLED55C2PUA on Amazon
65 Inches LG OLED65C2PUA on Amazon
77 inches LG OLED77C2PUA on Amazon
83 Inches LG OLED83C2PUA on Amazon

Sony A90K vs LG C2 Performance

Movies

As typical of OLED TV, the Sony A90K vs LG C2 are great TVs for watching movies in a dark room. Thanks to their infinite contrast ratio, perfect black uniformity, and pixel dimming level, their performance in a dark room is very impressive. Dark scenes of movies look very detail without “crushing black” and looks very accurate, even if they are set in a pitch-dark room. Additionally, subtitle in movies also can be shown fairly well without blooming around it. These make their performance when used for watching movies in a dark room is really great, even for movie’s genre that has a lot of dark scenes like horror or thriller. That is not only that, both can also do a great job in handling motion. So, when they are showing a movie with a lot of fast motion objects like fast action movies, they can show them smoothly and clearly with almost no motion blur.

The LG C2 and Sony A90K also have great 4K up-scaling engine, allowing you to watch any movies in 4K resolution. So, even if you watch movies from cable TV that usually have 720p or Blu-Ray movies with 1080p resolution, you can enjoy them in 4K resolution with a lot of small details preserved well. Meanwhile, a bit advantage of the LG C2 than the Sony A90K is when the source is DVD movies or has 480p resolution. As we have discussed above, the C2 OLED can up-scale 480p resolution to 4K fairly well. On the other hand, the Sony A90K cannot up-scale 480p signal to 4K properly, as they are displayed with an incorrect aspect ratio. This is highly unusual for Sony TV and may be caused by a bug in firmware. With a firmware update, this issue usually is solved.

Additionally, no matter the source, both also have can show movies with judder-free. So, whether you watch native 24p sources like DVD or Blu Ray movies, 24p via 60i signal like movies on satellite TV, via 60p signal like movies form streaming devices or PC, or movies from native apps like Netflix, Prime Video, etc, you can enjoy them with judder-free. And as we have discussed above, their nearly instantaneous pixel response time can cause low frame rate content appears to stutter. So, you need to interpolate them to higher frame rate or enabling their BFI mode if you don’t want to watch a movie with image stuttering. And both of them have these features.

Winner: LG C2

Sports

When used for watching sports in a bright room, their performance is also equally great. Both have nearly instantaneous pixel response time that allows you to watch sports that have a lot of fast-moving object likes MotoGP, F1, etc smoothly and clearly without motion blur. Additionally, both also have an optional 60 Hz BFI mode that can help improve appearance of fast-moving object in sports. And coincidence, most of sports have frame rate of 60 fps. That is not only that, if you often watch sports that have a large field with uniform colors like hockey, baseball, etc, both also have good gray uniformity. This makes the field in sports looks very uniform and you will watch them without a lot of dirty screen effects. And for you who often watch a big game with a group of your family and friends, both also have wide viewing angle coverage. So, this ensures all of you get the same viewing quality.

Meanwhile, the advantages of the LG C2 than the Sony A90K is on their SDR peak brightness. As we have discussed above, overall, the LG C2 have brighter SDR peak brightness than the Sony A90K and its peak brightness is bright enough to fight the glare in most bright rooms. Combine to its excellent reflection handling, with LG C2, you will not get an issue with the glare when watching sports in most bright rooms. On the other hand, the Sony A90K may also have excellent motion handling, but its SDR peak brightness is only bright enough to fight the glare in moderate to dimmer room. So, with A90K, you should avoid to use it in a room with a lot of lights or sunny windows.

Winner LG C2

Video Games

Both of the LG C2 and Sony A90K are also great TVs for gaming. Beside they have excellent picture quality and great motion handling that allows you to play games with excellent picture quality and smooth fast-motion images, both of them also have low input lags. So, no matter the resolution and frame rate of the games, you can play them responsively without any delay. What your act on your gamepad or keyboard will be in-sync with watch you see on their screen, even when you are playing fast paced games that require fast reflexes.

That is not only that, the Sony A90K and LG C2 also comes with a lot of features that help improve their gaming performance. All of their HDMI ports support ALLM (Auto Low Latency Mode), allowing them can automatically switch to game mode when there is game signal from game console or PC. So, you don’t need to change their mode to Game Mode manually. Both also have HDMI 2.1, allowing you to play high quality game that supported by modern game console like PS 5 or Xbox X Series. That is not only that, both of the LG C2 and Sony A90K also support VRR technology that works well across their entire frame rate. This can reduce screen tearing effect when you play games with a compatible device or game console.

Meanwhile, compare between them, the LG C2 is a bit better than the Sony A90K. As we have discussed above, LG C2 has lower input lag on both 60 fps and 120 fps games, which certainly makes it is more responsive than the A90K. Additionally, both may already support HDMI 2.1, but the LG C2 have 4 ports that support HDMI 2.1 while the Sony A90K only have two ports (HDMI 3 and 4). And coincidence, its HDMI 3 also serve as HDMI ARC. So, if you use HDMI 2 as HDMI ARC, it practically only have 1 port that support HDMI 2.1. This will be a problem if you have more than one HDMI 2.1 devices and want to connect them on your Sony TV at once. The other a bit advantage of the LG C2 is their VRR compatibility. As we have discussed above, the VRR technology of LG C1 is compatible with FreeSync, GSync, and HDMI Forum VRR while the VRR technology of the Sony A90K is only compatible with GSync and HDMI Forum. So, if you have FreeSync devices like a PC with old AMD graphic cards or Xbox one, its VRR don’t work with them.

Winner: LG C2

HDR Performance

The Sony A90K and LG C2 also have great HDR performance. Both supports most of popular HDR formats like HDR10, HLG, and Dolby Vision. However, they don’t support HDR10+ that supported by Samsung’s TV. This gives you some options in enjoying HDR content in different format.

Meanwhile, thanks to their infinite contrast ratio, pixel dimming level, nearly perfect black uniformity, performance of the LG C2 and Sony A90K in showing shadow details of HDR images is excellent. Shadow of HDR images can be shown excellent on their screen with a lot of fine details and almost no “Crushing Black”.  Color of images in dark scene also looks very accurate thanks to their infinite contrast ratio. Essentially, they can show shadow details of HDR images like what intended in HDR.

Additionally, their wide color gamut also makes them can show colors of HDR images accurately. Their color coverage in DCI P3 color space is nearly perfect, allowing them can show most current HDR contents colorfully. Although not as perfect as in DCI P3, their color coverage in Rec.2020 is also good. This makes them can show most colors of Dolby Vision content accurately. However, their incomplete colors in Rec.2020 color space can cause Dolby Vision Content loses some fine details in certain scenes. And although they cannot show bright saturated colors, but overall, color of HDR images displayed on their screen looks very accurate. That is not only that, both of them also have great gradient handling, allowing you to enjoy HDR content with smooth color gradient.

And discussed about their HDR peak brightness, for OLED TV, their HDR peak brightness is very good. On 2% and 10 % white window test where they get their brightest HDR peak brightness, the LG C2 can get about 780 nits and 750 nits while the Sony A90K gets about 600 nits and 530 nits. Their peak brightness is bright enough to make small highlight pop as bright as they should be, even for the A90K that has lower HDR peak brightness. But of course, it is still not bright enough for true cinematic HDR experience that require at least 1000 nits of peak brightness. And just their SDR peak brightness, their HDR peak brightness also varies depending on the content. The larger bright areas, their peak brightness is dimmer, so small highlight and bright scene cannot be shown at the same level of brightness.

Overall, their HDR performance is equally great, but compare among them, the Sony A90K is winner in color reproduction thanks to their slightly wider color gamut and better color gradient. On the other hand, the LG C2 can show brighter highlight, makes small highlight displayed on its screen looks more standout than on the screen of the A90K.

Winner: LG C2 is winner in showing highlight, the A90K is winner in color reproduction

Conclusion

As we have discussed above, the Sony A90K and LG C2 are great TVs for any usage. Whether you use them for watching movies, sports, TV Shows, playing games, in HDR or SDR, you will not be disappointed with picture quality and performance that offered. Both also have excellent smart TV platform that will improve your experience in enjoying modern entertainment. And although overall, the LG C2 is better than Sony A90K, but the superiority of the C2 OLED actually is not very significant.

So, which is a better choice between them? As we have mentioned above, with almost similar picture quality and performance, with same screen size (XR-42A90K vs OLED42C2, XR-48A90K vs OLED48C2), the Sony A90K is sold about one hundred dollars more expensive than the LG C2, though, their price actually is not fixed and could still change at any time. Overall, the LG C2 may be a bit better than Sony A90K. But the A90K comes with a unique audio technology called acoustic surface. This is probably that makes it is sold more expensive than the LG C2 OLED. The decision now comes back to you according to your own preferences. However, if you are searching 55 inches variant or higher, your option is only LG C2 or you go to the Sony A80K.

Check the Latest Price
Sony A90K LG C2 (OLED C2)
42 inches Sony XR-42A90K on Amazon LG OLED42C2PUA on Amazon
48 inches Sony XR-48A90K on Amazon LG OLED48C2PUA on Amazon
55 Inches LG OLED55C2PUA on Amazon
65 Inches LG OLED65C2PUA on Amazon
77 inches LG OLED77C2PUA on Amazon
83 Inches LG OLED83C2PUA on Amazon
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