We can easily guess Sony X91J and X90J as two closely related 4K LED TV series from Sony. They are both introduced as part of Sony’s 2021 TV lineup. Sony X91J comes with only one screen size option : 85-Inch (KD-85X91J) while there are 4 screen size options available for Sony X90J : 75-Inch (XR-75X90J), 65-Inch (XR-65X90J), 55-Inch (XR-55X90J) and 50-Inch (XR-50X90J). How similar are Sony X91J and X90J? I’m sure that it’s important for us to compare Sony X91J and X90J before we can find out which of them is the one that we should choose.
What Should You Know about Sony X91J?
Sony X91J is 4K LED TV series that comes with Full Array LED backlight that completed with local dimming. Full Array Local Dimming allows us to enjoy excellent picture contrast and superior light uniformity across the LED screen of this TV. The contrast of Sony X91J is also enhanced by X-tended Dynamic Range, Object-based HDR remaster and Dynamic Contrast Enhancer. X-tended Dynamic Range is able to brings wider brightness range between the brightest and darkest part of the TV screen, Object-based HDR Remaster can reproduces greater depth and textures while Dynamic Contrast Enhancer can adapt the contrast brightness according to the environment. Sony X91J comes with 4K X-Reality Pro on top of its 4K UHD resolution. 4K X-Reality Pro allows us to enjoy excellent picture clarity not only from original 4K content sources but also from non 4K contents that upscaled into near 4K picture quality. Triluminos display is integrated as the color technology of Sony X91J. It allows us to enjoy rich and accurate color details on the screen of this TV. The color is also enhanced by Live Color Technology that brings more lively color details. The color, clarity and contrast of the picture delivered on the screen of Sony X91J are optimized by 4K HDR Processor X1 that integrated as the picture processor of this TV. Sony X91J already supports HDR10, HLG and Dolby Vision so that we can enjoy enhanced details and expanded contrast from wide range of HDR content sources. The motion technology of Sony X91J is X-Motion Clarity that based on 120Hz Native refresh rate. It can delivers fluid motion images for our favorite action movies and sports while also can brings minimum input lag when we use this TV as our gaming monitor. Sony X91J also supports Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM) that can bring more immersive gaming experience on the screen of this TV. The operating system of Sony X91J is Google TV. Google TV allows us to enjoy wide range of premium entertainment from our favorite content providers with fast internet connection provided by 802.11ac wireless. Google TV is also connected to Play Store that allows us to run wide collection of smart apps. Sony X91J already comes with Voice Remote Control so that we can control this TV conveniently with our voice. We can also use Google Assistant and Apple HomeKit/AirPlay to control this TV since they are already supported. The speaker system that integrated with Sony X91J is quite basic. It comes with Acoustic Multi Audio speaker powered by 10 W + 10 W audio power output. It still can delivers quite good sound quality, but it’s indeed recommended to attach additional soundbar if we are looking for more powerful surround sound. We can also setup additional AV system to enjoy higher quality audio formats since Sony X91J already supports eARC (Enhanced Audio Return Channel).
| Sony X91J Prices | |
| 85-Inch (KD-85X91J) | Check Today’s Price (BHPhotoVideo.com)… |
What Should You Know about Sony X90J?
Sony X90J is 4K LED TV series that positioned higher than Sony X85J. Sony X90J comes with 4K UHD resolution that completed with XR 4K Upscaling. XR 4K Upscaling allows us to enjoy excellent clarity not only from original 4K content sources but also from non 4K contents that upscaled into near 4K picture quality. The clarity is also enhanced by Dual database processing and XR Super Resolution. Dual database processing is able to reduces on-screen noise especially from upscaled non 4K contents while XR Super Resolution detects every object in a picture then upscaled their resolution for better clarity and details. Sony X90J is able to delivers excellent contrast vibrancy and superior light uniformity with its Full Array LED backlight that completed with local dimming. Full Array Local Dimming backlight of Sony X90J is also completed with XR Contrast Booster, XR HDR Remaster and Dynamic Contrast Enhancer. XR Contrast Booster can brings higher contrast brightness between the brightest and darkest part of the TV screen, XR HDR Remaster can reproduces greater depth and textures while Dynamic Contrast Enhancer auto adjust the contrast according to the environment lighting condition. XR Triluminos Pro is already integrated with Sony X90J. It’s able to brings rich and accurate color details on the screen of this TV. The color is also enhanced by XR Smoothing and Live Color Technology. XR Smoothing can brings more natural color details while Live Color Technology delivers more lively color details. HDR10, HLG and Dolby Vision are already supported by Sony X90J so that we can enjoy enhanced details and expanded contrast from wide range of HDR content sources. Cognitive Processor XR is an advanced picture processor that integrated with Sony X90J. It provides optimization for the color, clarity and contrast of the picture delivered on the screen of Sony X90J. We can enjoy wide range of premium entertainment on the screen of Sony X90J with Google TV that integrated as the operating system of Sony X90J combined with 802.11ac wireless that provides fast internet connection. Google TV is also connected to Play Store so that we can run wide collection of smart apps on the screen of this TV. We can control Sony X90J conveniently with our voice using its included Voice Remote Control as well as Google Assistant and Apple HomeKit/AirPlay that already supported by this TV. Sony X90J comes with quality basic 10 W + 10 W audio power output. But we can still enjoy good sound quality with its Acoustic Multi Audio speaker type. Sony X90J also supports eARC (Enhanced Audio Return Channel) so that we can also enjoy higher quality audio formats with additional AV system.
| Sony X90J Prices | |
| 75-Inch (XR-75X90J) | Check Today’s Price (Walmart.com)… |
| 65-Inch (XR-65X90J) | Check Today’s Price (Walmart.com)… |
| 55-Inch (XR-55X90J) | Check Today’s Price (Walmart.com)… |
| 50-Inch (XR-50X90J) | Check Today’s Price (Walmart.com)… |
Similarities & Differences Table of Sony X91J and X90J
The similarities & differences table below shows us the key specs and features of Sony X91J and X90J. It’s important for us to look at their specs and features before we talk more about their comparison.
| Sony X91J |
Sony X90J | ||||||
| Similarities | |||||||
| Introduced | 2021 | 2021 | |||||
| Brand | Sony | Sony | |||||
| Resolution | 4K UHD | 4K UHD | |||||
| Display Technology | LED | LED | |||||
| Backlight Technology | Full Array LED | Full Array LED | |||||
| Dimming Technology | Local Dimming | Local Dimming | |||||
| HDR Support |
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| Gaming Technology |
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| Operating System | Google TV | Google TV | |||||
| Remote Control | Voice Remote Control | Voice Remote Control | |||||
| Control Support |
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| Built-in Wifi | 802.11ac | 802.11ac | |||||
| Speaker System |
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| HDMI/USB | 4/2 | 3/2 | |||||
| Differences | |||||||
| Picture Processor | 4K HDR Processor X1 | Cognitive Processor XR | |||||
| Clarity Technology | 4K X-Reality PRO |
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| Color Technology |
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| Contrast Technology |
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| Motion Technology | X-Motion Clarity (120Hz Native) | XR Motion Clarity (120Hz Native) | |||||
| Price | Higher | Lower | |||||
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Sony X91J and X90J Comparison
Based on their specs and features that we can find in the similarities & differences table above, let’s talk more about comparison between Sony X91J and X90J.
Picture Technology
Both of Sony X91J and X90J come with Full Array LED backlight that completed with local dimming. Full Array LED backlight that completed with local dimming allows us to enjoy excellent picture clarity between the brightest and darkest part of the TV screen while also can brings superior light uniformity across the LED screen of those two TVs.
We can find that the picture processor that integrated with Sony X91J and X90J are different. Sony X91J is powered by 4K HDR Processor X1 while Sony X90J is powered by Cognitive Processor XR. Cognitive Processor XR is more advanced picture processor that can delivers better picture optimization on the screen of Sony X90J than 4K HDR Processor X1 of Sony X91J.
The clarity technology of Sony X91J and X90J are also different in line with their different picture processor. Sony X91J comes with only 4K X-Reality PRO while Sony X90J comes with XR 4K Upscaling, Dual database processing and XR Super Resolution. 4K X-Reality Pro and XR 4K Upscaling are able to upscale non 4K contents into near 4K picture quality but XR 4K Upscaling is relatively better. We can also find Dual database processing and XR Super Resolution as two additional clarity technology integrated with Sony X90J. Dual database processing can reduces on-screen noise especially for upscaled non 4K contents while XR Super Resolution detects every objects in a picture then upscales their resolution for better clarity and details.
The color technology of Sony X91J and X90J are slightly different. Sony X91J comes with Triluminos Display that completed with Live Color Technology while Sony X90J comes with XR Triluminos Pro that completed with XR Smoothing and Live Color Technology. XR Triluminos Pro and Triluminos display are able to deliver rich and accurate color details, but XR Triluminos Pro is relatively better since it’s indeed the more advanced version. Live Color Technology is already integrated in both of Sony X91J and X90J that can brings more lively color details. XR Smoothing is integrated with Sony X90J that can brings more natural color details.
We can also find that the contrast technology of Sony X91J and X90J are quite different although they basically work in similar way. Sony X91J comes with X-tended Dynamic Range, Object-based HDR remaster and Dynamic Contrast Enhancer while Sony X90J comes with XR Contrast Booster, XR HDR Remaster and Dynamic Contrast Enhancer. X-Tended Dynamic Range and XR Contrast Booster are basically similar technology that can delivers wider brightness range between the brightest and darkest part of the TV screen. But XR Contrast Booster is indeed better. Object-based HDR Remaster and XR HDR Remaster are also basically similar that can reproduces greater depth and texture on the screen of Sony X91J and X90J. But XR HDR Remaster that powered by Cognitive Processor XR is indeed better. Dynamic Contrast Enhancer is another contrast technology integrated with Sony X91J and X90J that can adjust the screen brightness according to the environment.
Both of Sony X91J and X90J already support HDR10, HLG and Dolby Vision. With HDR10, HLG and Dolby Vision support, we can enjoy enhanced details and expanded contrast on the screen of Sony X91J and X90J from wide range of HDR content sources.
Motion and Gaming Technology
The refresh rate technology of Sony X91J and X90J are similar. They both come with 120Hz native refresh rate. But the motion technology integrated on top of 120Hz native refresh rate of Sony X91J and X90J are slightly different. Sony X91J comes with X-Motion Clarity while Sony X90J comes with XR Motion Clarity. Although they are slightly different, we can find that both of Sony X91J and X90J are basically able to deliver smooth motion images from our favorite action movies and sports while also can bring minimum input lag when we use this TV as our gaming monitor. Both of Sony X91J and X90J already support Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM) that can deliver more immersive gaming experience when we use this TV as our gaming monitor.
Operating System and Remote Control
The operating system of Sony X91J and X90J are similar. They both come with Google TV as their operating system. Google TV allows us to enjoy wide range of premium entertainment and run wide collection of smart apps with the access to Play Store. 802.11ac wireless is also attached with both Sony X91J and X90J to provides fast internet connection for those two TVs.
The remote control that included with Sony X91J and X90J are similar. They both come with Voice Remote Control that allows us to control those two TVs using our voice. We can also use Google Assistant and Apple HomeKit/AirPlay to control those two TVs conveniently using our voice.
Sound Technology
The speaker system that integrated with Sony X91J and X90J are similar. They both come with quite standard 10 W + 10 W that use Acoustic Multi-Audio speaker. Although it’s able to delivers quite good sound quality, I’m sure that it’s a good idea to attach additional soundbar to enjoy more powerful surround sound. We can also find that both of Sony X91J and X90J already support eARC (Enhanced Audio Return Channel) that allows us to enjoy higher quality audio formats with additional AV system.
Price
When we look at the price of Sony X91J and X90J, we can find that Sony X91J is offered at the higher price since it’s only offered at the higher screen size option. It’s important for us to check the price of Sony X91J and X90J to find out their latest price difference since TV prices are changing from time to time.
How Similar are They?
After we talk about comparison between Sony X91J and X90J, we can find that Sony X91J and A90J are similar in few aspects while there are also differences when it comes to picture processor and picture technology (clarity, color and contrast) as well as their available screen size option. Sony X91J comes with less advanced picture processor and picture technology but it’s basically still can delivers good picture quality with its Full Array Local Dimming that completed with Triluminos display and powered by 4K HDR Processor X1. It’s also the one that comes with 85-Inch screen size option. So if you are looking for larger screen size 4K LED TV (85-Inch) then Sony X91J is the one that you should choose.
| Sony X91J Prices | |
| 85-Inch (KD-85X91J) | Check Today’s Price (BHPhotoVideo.com)… |
Sony X90J comes with more advanced picture processor as well as more excellent picture technology. It’s available in smaller screen size options (75-Inch, 65-Inch, 55-Inch and 50-Inch). So if you are looking for better 4K UHD picture quality and you don’t mind with smaller screen size option, then Sony X90J is the one that you should choose.
| Sony X90J Prices | |
| 75-Inch (XR-75X90J) | Check Today’s Price (Walmart.com)… |
| 65-Inch (XR-65X90J) | Check Today’s Price (Walmart.com)… |
| 55-Inch (XR-55X90J) | Check Today’s Price (Walmart.com)… |
| 50-Inch (XR-50X90J) | Check Today’s Price (Walmart.com)… |