We can find Sony Z9J and A90J as our options for the best TV in 2021. Both of Sony X9J and A90J are introduced as part of Sony’s 2021 TV lineup. Sony X9J comes as 8K HDR Full Array LED TV series while Sony A90J is introduced as the higher 4K HDR OLED TV series. Sony Z9J comes with 2 screen size options : 85-Inch (XR85Z9J) and 75-Inch (XR75Z9J) while Sony A90J is offered with 3 screen size options : 83-Inch (XR83A90J), 65-Inch (XR65A90J) and 55-Inch (XR55A90J). Which one is more suitable for you? It’s necessary for us to know more about the key differences between Sony Z9J and A90J before we can decide which of them is the more suitable for us.
Sony Z9J Introduction
Sony Z9J
Sony Z9J is the only 4K TV series from Sony’s 2021 TV lineup. It comes with 8K UHD resolution that completed with XR 8K Upscaling that allows us to enjoy excellent picture clarity from both of original 8K content sources and non 8K contents that upscaled into near 8K picture quality. The clarity of Sony Z9J is also enhanced by Dual database processing and XR Super Resolution. Dual database processing can reduces on-screen noise especially for upscaled non 4K contents while XR Super Resolution is able to delivers real-world textures by detects every objects in a picture then upscales their resolution. The backlight technology of Sony Z9J is Full Array LED with local dimming. Full Array Local Dimming is able to delivers excellent contrast vibrancy between the bright and dark part of the TV screen. We can also find XR Contrast Booster, XR HDR Remaster and Dynamic Contrast Enhancer as the additional contrast technology. XR Contrast Booster can delivers better peak brightness and deeper blacks while XR HDR Remaster reproduces greater depth and textures while Dynamic Contrast Enhancer can adjust the screen brightness according to the environment condition. Sony Z9J is able to delivers rich and accurate color details with XR Triluminos Pro integrated on its screen. We can also find XR Smoothing and Live Color Technology integrated as its additional color technology. XR Smoothing can minimize color banding so that we can enjoy more natural color while Live Color Technology brings more lively color details. Sony Z9J already supports HDR10, HLG and Dolby Vision that allows us to enjoy enhanced details and expanded contrast from wide range of HDR content sources. The color, clarity and contrast of Sony Z9J are optimized by Cognitive Processor XR. Cognitive Processor XR is more advanced processor that understands how humans see and hear. XR Motion Clarity that based on 120Hz native refresh rate is integrated as the motion technology of Sony Z9J. It can delivers fluid motion images for our favorite action movies and sports while also can brings non lagging gaming experience when we use this TV as our gaming monitor. Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM) that supported by Sony Z9J is also able to brings more immersive gaming experience on the screen of this TV. Google TV (Android TV) is the operating system integrated with Sony Z9J. It can delivers wide range of premium entertainment with 802.11ac wireless provides fast internet connection to our favorite content providers. Google TV is also connected to Play Store that allows us to run wide collection of smart apps on the screen of this TV. ATSC 3.0 (NextGEN TV) is also integrated with Sony Z9J that help us to enjoy HDR OTA (Over the Air) entertainment on the screen of this TV. Sony Z9J comes with Premium Backlit Remote that allows us to control this TV conveniently even in completely dark room condition. We can also use Google Assistant, Amazon Alexa and Apple AirPlay/HomeKit as they are already supported by Sony Z9J. The speaker system that integrated with Sony Z9J is Acoustic Multi-Audio with 12.5 W + 12.5 W + 20 W + 20 W + 5 W + 5 W + 5 W + 5 W (85W) output. It’s able to deliver rich and powerful surround sound for this TV. We can also setup more advanced AV system to enjoy higher quality audio formats since Sony Z9J already supports eARC (Enhanced Audio Return Channel).
We can summarize the key specs and features of Sony Z9J with the table below.
| Sony Z9J | |||
| Brand | Sony | ||
| Introduced | 2021 | ||
| Screen Size |
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| Resolution | 8K UHD (7680 x 4320) | ||
| Display Technology | LED | ||
| Backlight Technology | Full Array LED | ||
| Dimming Technology | Local Dimming | ||
| Clarity Technology |
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| Contrast Technology |
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| Color Technology |
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| HDR Support |
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| Motion Technology | XR Motion Clarity (120Hz Native) | ||
| Gaming Technology |
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| Picture Processor | Cognitive Processor XR | ||
| Smart TV Platform | Google TV (Android TV) | ||
| Remote Control | Premium Backlit Remote | ||
| Control Support |
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| Built-in Wifi | 802.11ac (WiFi 5) | ||
| ATSC 3.0 (NextGen TV) | YES | ||
| Speaker System |
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| HDMI/USB | 4/3 | ||
| Price |
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Sony A90J Introduction
Sony A90J
Sony A90J is the higher 4K OLED TV series from Sony’s 2021 TV lineup. The other one is Sony A80J. It comes with OLED panels that can delivers perfect black and infinite contrast since its pixels can be completely powered off and dimmed autonomously. Sony A90J is also completed with OLED XR Contrast Pro, XR HDR Remaster, Pixel Contrast Booster and Dynamic Contrast Enhancer as its additional contrast technology. OLED XR Contrast Pro allows brighter OLED brightness on top of its perfect black, XR HDR Remaster reproduces greater depth and textures, Pixel Contrast Booster can delivers higher pixel brightness while Dynamic Contrast Enhancer adjusts the screen brightness according to the lighting of the environment. Sony A90J comes with XR 4K Upscaling on top of its 4K UHD resolution so that we can enjoy excellent picture clarity not only from original 4K content sources but also from non 4K contents that upscaled into near 4K picture quality. Dual database processing and XR Super Resolution are also integrated with Sony A90J. Dual database processing reduces on screen noise especially for upscaling result while XR Super Resolution can detects individual objects in a picture then upscale their resolution for real world textures. XR Triluminos Pro is integrated on top of OLED panel of Sony A90J that delivers rich and accurate color details on the screen of this TV. The color is also enhanced by XR Smoothing that brings more natural color by reducing color banding and Live Color Technology that delivers more lively color details. Sony A90J is powered by Cognitive Processor XR. It’s an advanced processor that understands how humans see and hear that deliver advanced optimization for the color, clarity and contrast of the picture delivered on the screen of this TV. Dolby Vision, HDR10 and HLG are already supported by Sony A90J so that we can enjoy enhanced details and expanded contrast from wide range of HDR content sources. Sony A90J comes with XR Motion Clarity as its motion technology. XR Motion Clarity allows us to enjoy fluid motion images from our favorite action movies and sports while also allows us to enjoy minimum input lag when we use Sony A90J as our gaming monitor. To brings more immersive gaming experience, Sony A90J also supports Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM). The operating system of Sony A90J is Google TV (Android TV). It can brings wide range of premium entertainment from our favorite content providers while also allows us to run wide collection of smart apps with the access to Play Store. To bring fast and stable internet connection, 802.11ac wireless is already attached to Sony A90J. We can also enjoy 4K HDR OTA (Over the Air) entertainment on the screen of Sony A90J since it already comes with ATSC 3.0 (NextGen TV). We can control Sony A90J conveniently even in the dark environment since it already comes with Premium Backlit Remote. Google Assistant, Amazon Alexa and Apple HomeKit/AirPlay also can be used to control Sony A90J since they are already supported. Acoustic Surface Audio+ with 20 W + 20 W + 10 W + 10 W (60W) output is integrated as the speaker system of Sony A90J. It can delivers powerful astonishing sound for this TV. With eARC support, we can also setup more advanced AV system to enjoy higher quality audio formats from this TV.
From our discussion about Sony A90J, we can create the table below to summarize its specs and features.
| Sony A90J | ||||
| Brand | Sony | |||
| Introduced | 2021 | |||
| Screen Size |
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| Resolution | 4K UHD (3840 x 2160) | |||
| Display Technology | OLED | |||
| Clarity Technology |
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| Contrast Technology |
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| Color Technology |
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| HDR Support |
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| Motion Technology | XR Motion Clarity (120Hz Native) | |||
| Gaming Technology |
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| Picture Processor | Cognitive Processor XR | |||
| Smart TV Platform | Google TV (Android TV) | |||
| Remote Control | Premium Backlit Remote | |||
| Control Support |
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| Built-in Wifi | 802.11ac (WiFi 5) | |||
| ATSC 3.0 (NextGen TV) | YES | |||
| Speaker System |
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| HDMI/USB | 4/3 | |||
| Price |
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The Key Differences of Sony Z9J and A90J
From their table of specs and features, we can find that there are few differences between Sony Z9J and A90J. Let’s talk more about their key differences together. The first key difference of Sony Z9J and A90J is of course their resolution. Sony Z9J comes with 8K UHD resolution while Sony A90J comes with 4K UHD resolution. Their upscaling technology are also respectively different. Sony Z9J comes with XR 8K Upscaling while Sony A90J comes with XR 4K Upscaling. 8K UHD resolution is able to delivers more advanced clarity with better picture resolution. The second key difference can be found in their display and dimming technology. Sony Z9J comes with LED display that completed with Full Array Local Dimming backlight while Sony A90J comes with OLED display that can delivers pixel level dimming. OLED display with pixel level diming is better when it comes to deep black as it already can delivers perfect black since its pixels can be completely powered off. We can also find another key difference in the contrast technology of Sony Z9J and A90J. Sony Z9J comes with XR Contrast Booster 15 while Sony A90J comes with OLED XR Contrast Pro and Pixel Contrast Booster. XR Contrast Booster 15 that integrated on top of Full Array Local Dimming is able to delivers higher peak brightness than OLED XR Contrast Pro and Pixel Contrast Booster on top of OLED panel. There’s also another key difference in the speaker system of Sony Z9J and A90J. Sony Z9J comes with 12.5 W + 12.5 W + 20 W + 20 W + 5 W + 5 W + 5 W + 5 W (85 W) Acoustic Multi-Audio speaker system while Sony A90J comes with 20 W + 20 W + 10 W + 10 W (60W) Output Acoustic Surface Audio+ speaker system. So we can find that Sony Z9J is able to delivers more powerful surround sound than Sony A90J.
Relatively, Sony Z9J is offered at the higher price than Sony A90J although they indeed doesn’t come with similar screen size options. We need to check the price of Sony Z9J and A90J to find the latest price of those two TVs since TV prices are changing from time to time.
The key differences of Sony Z9J and A90J can be summarized with the table below.
| Sony Z9J | Sony A90J | |
| Resolution | 8K UHD (7680 x 4320) | 4K UHD (3840 x 2160) |
| Upscaling Technology | XR 8K Upscaling | XR 4K Upscaling |
| Display Technology | LED | OLED |
| Dimming Technology | Full Array Local Dimming | Pixel Level Dimming |
| Contrast Technology | XR Contrast Booster 15 |
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| Speaker System |
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| Price | More Expensive | Less Expensive |
Which One is More Suitable for You?
Based on our discussion above, we can find that there are few key differences between Sony Z9J and A90J. Which of them is more suitable for you? Sony Z9J is the one that come with 8K UHD resolution with XR 8K Upscaling that completed with XR Contrast Booster 15 on top of its Full Array Local Dimming. It’s more suitable for you if you are looking for the more advanced 8K UHD resolution that can deliver better real-world clarity (especially for larger TV screen) with better picture resolution as well as better peak brightness with XR Contrast Booster 15 on top of its Full Array Local Dimming. We can also get more powerful surround sound with 12.5 W + 12.5 W + 20 W + 20 W + 5 W + 5 W + 5 W + 5 W (85 W) audio output as additional bonus.
| Sony Z9J Prices | |
| 85-Inch (XR85Z9J) | Check Today’s Price (BHPhotoVideo.com)… |
| 75-Inch (XR75Z9J) | Check Today’s Price (BHPhotoVideo.com)… |
Sony A90J is the series that comes with OLED panels. OLED panels comes with pixel level dimming that can delivers perfect black since its pixels can be completely powered off. So Sony A90J is the more suitable option if you are looking for the best black level with its perfect black. It’s also the more suitable option if you have more limited budget and you don’t mind with 4K UHD resolution. If you are looking for smaller screen size option (65-Inch and 55-Inch), Sony A90J is also more suitable since it’s the one that offered with 65-Inch and 55-Inch screen size options.
| Sony A90J Prices | |
| 83-Inch (XR83A90J) | Check Today’s Price (Walmart.com)… |
| 65-Inch (XR65A90J) | Check Today’s Price (Walmart.com)… |
| 55-Inch (XR55A90J) | Check Today’s Price (Walmart.com)… |