The Sony X900H, also sold as the X90CH at Costco, is a great 4k TV for nearly any type of content. It has a VA panel with an excellent contrast ratio and a full-array local dimming feature that makes blacks look even better in the dark. It's well-suited for bright rooms, as it has decent reflection handling and gets bright enough to easily overcome glare. It displays fast-moving scenes with minimal blur thanks to its quick response time and optional Black Frame Insertion feature. Gamers should be happy with its low input lag, which remains low even when playing in 4k with 10-bit HDR. Unfortunately, the advertised variable refresh rate (VRR) support is not yet functional. Also, its viewing angles are quite narrow, so images look washed out when viewed from the side.
The Sony X900H is a great TV for mixed usage. Its picture quality is great thanks to its excellent contrast ratio, high peak brightness, and wide color gamut. HDR content also looks good, with rich colors and highlights that pop for the most part. Gamers should appreciate its fast response time and low input lag, although VRR support is currently missing. Unfortunately, it's less suited to watching with larger groups because it has narrow viewing angles that make the image look washed out from the side.
The Sony X900H is excellent for watching movies. It has a high native contrast ratio, combined with a full-array local dimming feature, that produces deep, uniform blacks. It can also upscale low-resolution movies without issue, and it removes judder from any source. That said, there's some stuttering in low frame rate content because of its fast response time.
The Sony X900H is good for watching TV shows. It has decent reflection handling, and it gets bright enough to overcome glare, so it's well-suited to watching TV in the daytime. It can also upscale lower-resolution content from cable boxes without issue. On the other hand, it's not recommended for wide seating arrangements because its narrow viewing angles make the image look washed out from the side.
The Sony X900H is good for watching sports. It has an impressive response time, making motion look clear in fast-moving content. It also has decent reflection handling and is bright enough to fight glare in well-lit rooms. It's not ideal if you like watching the game with a large group, though, since the image quickly loses accuracy when viewed from the side.
The Sony X900H is an impressive TV for gaming. Motion looks clear thanks to the fast response time, and it has a remarkably low input lag. If you prefer gaming in the dark, its high contrast ratio and good local dimming produce deep blacks. It also has two HDMI 2.1 ports for advanced consoles, but it doesn't have VRR support or Auto Low Latency Mode (ALLM) as of yet.
The Sony X900H is great for watching HDR movies. It has a wide color gamut for HDR and gets reasonably bright, although HDR content looks best in dark to moderately lit rooms. Its high contrast ratio produces deep inky blacks, and it has full-array local dimming to further improve black levels. Unfortunately, low frame rate content stutters a bit due to the TV's fast response time.
The Sony X900H is great for HDR gaming. Its gaming performance is impressive thanks to its fast response time and low input lag, which stays low even in HDR. It has a wide color gamut and gets bright enough to bring out some highlights. HDR content looks especially good in the dark because of its high contrast ratio. Unfortunately, it can't support a 4k @ 120Hz signal and Dolby Vision at the same time, although 4k @ 120Hz still works with HDR10. It also lacks VRR support at this time.
The Sony X900H is very good for use as a PC monitor. It can display proper chroma 4:4:4, which is important for text clarity, and it has a remarkably low input lag, making for a responsive desktop experience. It also has a fast response time so there's minimal blur behind fast-moving objects like a mouse cursor. Unfortunately, though, it has narrow viewing angles, so the image looks washed out at the edges of the screen if you sit up close.
The Sony X900H has a sleek design, very similar to the Sony X950H. The metal feet are simple and hold the TV well, although you can't adjust their position to suit smaller tables. The back has some visible screws in the corners, but overall the TV looks nice and should look good in any living room.
The metal feet slide into the TV itself instead of being screwed on, making setup easier. It has a wide footprint, but there's plenty of space in front for a soundbar without obstructing the screen.
Footprint of the 55 inch TV: 41.8" x 13.2"
The Sony X900H is a bit thicker than most premium TVs we've tested in 2020, but it shouldn't stick out when wall-mounted. The inputs are side-facing, making them easier to access when wall-mounted compared to the Sony X900F.
This TV has great build quality. It feels well-built and doesn't wobble much, as the metal stand supports the TV well. However, the plastic near the inputs flexes a bit. There are some visible screws where the back panel attaches to the borders, and there's a bit more give in this area, but it isn't very noticeable and shouldn't be an issue for most people.
The Sony X900H has an excellent native contrast ratio, although contrast may vary between units. It's higher than that of the Sony X950H, as it doesn't have Sony's 'X-Wide Angle' layer, which has the side effect of lowering the contrast ratio. The local dimming improves the contrast a bit, but not by much. That said, blacks still look deep, making it a great choice for dark room viewing. If you want a TV with an even better contrast ratio, check out the Hisense H9G.
This TV has great SDR peak brightness. It's more than enough to fight glare, so you shouldn't have any issues using the TV in a well-lit room. However, the brightness varies a lot depending on the content and small areas are more dim, as seen in the 2% and 10% windows.
We measured the SDR peak brightness after calibration, using the 'Custom' Picture Mode. Local Dimming and X-tended Dynamic Range were both set to 'High'.
If you want an even brighter image and don't mind losing accuracy, we reached 638 cd/m² in the 25% window using the 'Vivid' Picture Mode, with Local Dimming and X-tended Dynamic Range on 'High', and Contrast at max.
Update 06/22/2021: We've added two new videos demonstrating the local dimming feature with real content.
The full-array local dimming is good. It looks very similar to the Sony X950H, but with less blooming. There's a bit of dimming, though, and some small details are crushed in darker areas. It's good at making highlights in the background pop without being overly distracting; however, it doesn't handle highlights in the foreground as well as the X950H.
Update 06/22/2021: We've added two new videos demonstrating the local dimming feature with real content.
Local dimming in 'Game' mode looks and functions the same as it does outside of 'Game' mode.
Update 06/22/2021: We've retested the HDR peak brightness with Local Dimming set to 'Medium'. In that mode, the 2% and 10% windows aren't dimmed by the algorithms, resulting in a more consistent peak brightness across different content, but some scenes aren't as bright.
Update 03/12/2021: We've retested the HDR peak brightness with the latest firmware (version PKG6.0414.0055NAA). There's a slight drop in the real scene brightness, from 556 cd/m² to 526 cd/m². Overall, the 2% windows are a bit dimmer, while all the other windows are slightly brighter. The ABL result increased from 0.050 to 0.053. The score has been adjusted accordingly.
The HDR brightness is adequate. It gets bright enough to deliver a fairly good HDR experience, especially if you're watching in a dark to moderately lit room, but it doesn't look as punchy in a bright room setting. The overall brightness of scenes is good, as the EOTF follows the target almost perfectly but rolls off toward the TV's peak brightness, meaning that highlights can't appear quite as bright as intended. The brightness also varies a lot depending on the content with Local Dimming set to 'High'. If this variation bothers you, setting it to 'Medium' results in less variation in peak brightness, but also a slightly dimmer image in some cases. If you want a TV with exceptionally high brightness in HDR, check out the Samsung QN85A QLED.
We measured the HDR brightness before calibration, using the 'Custom' Picture Mode, 'Expert 2' Color Temperature, and with Local Dimming and X-tended Dynamic Range set to 'High'.
If you find HDR content too dim, you can make it brighter by using the 'Vivid' Picture Mode, with Local Dimming, X-tended Dynamic Range, and Advanced Contrast Enhancer all set to 'High'. These settings result in a much brighter image, as you can see in this EOTF.
Update 03/12/2021: We've retested the HDR brightness in Game Mode with the latest firmware (version PKG6.0414.0055NAA). The real scene brightness dropped from 688 cd/m² to 669 cd/m². All windows are slightly dimmer but shouldn't be noticeable. The most notable changes are in the 2% peak and sustained windows, both losing roughly 50 cd/m². The ABL result increased from 0.030 to 0.035. The score has been adjusted accordingly.
In 'Game' mode, HDR is somewhat brighter. This is especially noticeable in real scenes. As with 'Game' mode turned off, the brightness varies quite a bit depending on the content.
We measured 'Game' mode HDR brightness after calibration, using the 'Game' Picture Mode with Local Dimming and X-tended Dynamic Range set to 'High' and the Color Temperature set to 'Expert 1'. All extra settings were turned off.
Gray uniformity is great, but this may vary between units. The corners are slightly darker but shouldn't be distracting in normal content. There's almost no dirty screen effect at all, and uniformity is excellent in dark scenes.
The Sony X900H has excellent black uniformity, but this may vary between units. Without local dimming, the entire screen looks a bit grayish, and there's only some faint clouding around the top and bottom edges of the screen. With local dimming enabled, uniformity is much better throughout the screen, and surprisingly, there's very little blooming around the test cross.
Like most VA panels, this TV has narrow viewing angles, and unfortunately, it doesn't have Sony's 'X-Wide Angle' layer to improve it. The image loses accuracy fairly quickly when moving off-center, so it's not the best option for large rooms or wide seating arrangements.
This TV has decent reflection handling. It struggles mostly with direct reflections, so it's best to avoid placing the TV opposite bright lights.
The color accuracy is excellent out-of-the-box, but this may vary between units. There are minor inaccuracies with blue and red, and the white balance is only slightly off. The color temperature is very close to our 6500K target. Gamma is also close to the 2.2 target, but most scenes are too dark and bright scenes are over-brightened.
After calibration, color accuracy is outstanding. White balance, gamma, and color temperature are nearly perfect. However, there are still some inaccuracies with reds and blues, but it shouldn't be noticeable in most content.
You can see our recommended settings here.
The Sony X900H upscales 480p content such as DVDs well and there are no visible artifacts.
1080p content like Blu-rays looks incredible and there are no issues with the upscaling.
The Sony X900H has a BGR subpixel layout. It doesn't affect picture quality, but it can affect text clarity when using the TV as a PC monitor. You can read more about it here.
This TV has a good color gamut, wide enough for HDR content. It has excellent coverage of the DCI P3 color space used in most HDR content, but coverage of the wider Rec.2020 is just okay. If you want a similar TV with a better color gamut, check out the Vizio P Series Quantum 2020.
The color volume is decent. It displays dark colors well due to its high contrast ratio, but like most LED TVs, it has trouble displaying bright blues.
This TV has amazing gradient handling. There's only a little bit of banding in the darker shades of each color, and shouldn't be very noticeable with most content.
The Sony X900H doesn't exhibit any signs of temporary image retention, but this may vary between units.
We don't expect VA panels to experience permanent image retention, as the VA panel in our long-term test appears immune.
The Sony X900H has an impressive response time, resulting in very little motion blur in fast-moving scenes. There's a lot of overshoot in the 0-20% transition, though, causing some motion artifacts in dark scenes.
The Sony X900H uses Pulse-Width Modulation (PWM) to dim its backlight, but because of its high flicker frequency, it shouldn't really be noticeable for most people.
This TV has an optional Black Frame Insertion feature to help reduce motion blur. Unfortunately, the backlight's minimum flicker frequency is 120Hz even when playing 60Hz content, which results in some image duplication.
To enable BFI, set Motionflow to 'Custom' and adjust the Clearness slider to your preference.
To activate Sony's X-Motion Clarity Plus feature, which helps to make the image look clearer and brighter in fast-moving scenes, set Motionflow to 'Custom' and adjust the Clearness slider to '1', and the Smoothness slider to '2'.
The Sony X900H can interpolate lower frame rate content up to 120fps to make motion look smoother, also known as the 'Soap Opera Effect'. Motion looks good when enabled and we didn't notice any issues.
If you want to use motion interpolation on native 60fps content, set Motionflow to 'Custom', with the Smoothness slider set to 'Max' and the Clearness slider set to 'Min'. For native 30fps content, set Cinemotion to 'Auto'.
Due to the TV's fast response time, there's a bit of stutter when watching lower frame rate content. It's more noticeable with 24fps content since each frame is held on for longer.
This TV can remove judder from all sources. For 24p content, it does so automatically, so there's no need to change any settings. To remove judder from 60p, 60i, and content from native apps, set Cinemotion to 'Auto', Motionflow to 'Custom', and the Smoothness and Clearness sliders to their minimum.
Update 04/29/2021: We received reports that the TV got an update for VRR to work. However, we updated the TV to firmware PKG6.0414.0055.NAA and VRR still doesn't work no matter which settings and HDMI ports we use. If you notice VRR is working on your X900H, let us know.
Update 10/27/2020: We updated the TV to the latest firmware version and retested it with an HDMI 2.1 source. There's still no VRR support at this time.
The Sony X900H doesn't have variable refresh rate support, and while Sony has stated that they'll address this in an upcoming firmware update, it isn't available yet. We'll retest the TV once it is.
Update 10/27/2020: We updated the TV to the latest firmware version and retested it with an HDMI 2.1 source.
This TV has a remarkably low input lag. It's low as long as you're in 'Game' mode, and it's the lowest with 4k @ 120Hz games. PC users can be in either 'Game' or 'Graphics' mode to get the lowest latency. Input lag remains low even when playing at 4k @ 60Hz + 10-bit HDR, but it increases significantly if motion interpolation is enabled, so it isn't recommended. Unfortunately, we'll have to wait until Sony releases the firmware update that enables VRR to test the input lag with VRR enabled, and the 'Auto Low Latency Mode' should also be enabled in the same update.
Update 06/22/2021: We retested 4k @ 120Hz support, and unfortunately, the issue hasn't been fixed yet.
Update 02/15/2021: We previously indicated that 1440p @ 60Hz is supported natively, it is not. It only works through a forced resolution. We've also retested 1440p @ 120Hz, and it still doesn't work. 1080p @ 120Hz works and is supported natively.
Update 11/26/2020: We updated the TV to firmware version PKG6.0414.0055NAA and checked to see if it fixed the issues with chroma 4:4:4 at 4k @ 120Hz. Text looks a bit better, but it's still blurry, as seen in this photo.
Update 10/27/2020: We updated the TV to the latest firmware (version 6.0384) and retested it with an HDMI 2.1 source.
Update 09/30/2020: We've retested the X900H's ability to display proper chroma 4:4:4 with the latest firmware, as we've received reports that it functions in all picture modes. Unfortunately, the results haven't changed. Chroma 4:4:4 is only possible in 'Graphics' or 'Game' mode.
The Sony X900H supports most common resolutions, except for 1440p @ 120Hz. It properly displays 4k @ 120Hz and doesn't skip frames. Chroma 4:4:4 is supported at all resolutions, and only requires that you be in 'Game' or 'Graphics' mode. However, text looks a bit blurry with chroma 4:4:4 at 4k @ 120Hz, as you can see in this photo. For full-bandwidth signals like 4k @ 60 + 10-bit HDR, set HDMI Signal Format to 'Enhanced Format' for the input in use.
The Sony X900H has two HDMI 2.1 ports (ports 3 and 4), and it supports most, but not all, resolutions for new gaming consoles. When setting the HDMI Signal Format to 'Enhanced Format', it can support a 4k @ 120Hz signal but not Dolby Vision, as you can see here. However, when it's set to 'Enhanced Format (Dolby Vision)', it can't support a 4k @ 120Hz signal, as seen here. This, unfortunately, means that users have to choose between 4k @ 120Hz or Dolby Vision when using the Xbox Series X.
The TV doesn't currently have official Auto Low Latency Mode (ALLM) support, but it appears to approximate it with Sony consoles. When a PS5 or even a PS4 is plugged in, the TV automatically detects it and changes the name and icon of the HDMI input to match the console. With Auto Picture Mode enabled, the picture mode automatically switches in and out of 'Game' mode when you launch or quit a game. With an Xbox, however, you have to manually switch into 'Game' mode.
Update 10/28/2020: We incorrectly listed all four ports to have HDMI 2.1, but only HDMI 3 and 4 have HDMI 2.1 support.
Update 10/27/2020: We updated the TV to the latest firmware version and retested it with a HDMI 2.1 source.
There's a composite input for older devices such as DVD players, but it requires an adapter, which isn't included in the box.
Update 10/27/2020: We updated the TV to the latest firmware (version 6.0384). eArc now works on the HDMI 3 port.
The Sony X900H has eARC support when you update it to its latest firmware version. This allows you to send high-quality audio such as Dolby Atmos via TrueHD to a compatible receiver using an HDMI connection.
This TV has a decent frequency response. The sound profile is reasonably well-balanced and dialogue sounds clear. The bass is punchy, but it doesn't produce a deep rumbling sound. It gets very loud without causing too many compression artifacts, which is great for large or noisy environments. The 65 inch, 75 inch, and 85 inch sizes of this TV have a different speaker configuration and are expected to have better performance.
The distortion performance is disappointing. It doesn't distort too much at moderate volume levels, but there's a lot of distortion when playing near max volume.
Update 07/15/2020: It's been mentioned to us that apps and settings can be customized to show on the quick menu and quick settings list, which further reduces the amount of time required to access them. The 'Time Taken' values have been updated.
The Sony X900H runs on Android TV. It runs very smoothly, and we didn't notice any issues while testing. The interface is clean and fairly easy to navigate.
During our testing, we didn't notice any ads, but there's some suggested content on the home page and within the app store.
The Google Play Store offers a ton of apps available to download, and they work well. The built-in Google Chromecast allows you to cast anything you want from your phone.
The Sony X900H comes with the same large and stylish remote as the Sony X850G. It has shortcut buttons to Netflix and the Google Play Store. There's also a Google Assistant button that allows you to ask for most common demands, such as changing inputs or searching for content in apps, but we weren't able to change the TV's settings.
Like the Sony X950H, the TV's control is now just a single button, located beneath the Sony branding at the center of the bottom bezel. This button lets you turn the TV On/Off, change the input source, change the channel, adjust the volume, and restart the TV.
We tested the 55 inch Sony X900H (XBR55X900H), and for the most part, we expect our review to be valid for the 65 inch (XBR65X900H), the 75 inch (XBR75X900H), and the 85 inch (XBR85X900H). It's sold as the Sony X90CH at Costco. In Europe, there's also the XH9296 and the XH9096. Both are basically the same TV as the X900H, but they come with a two-way position stand to accommodate smaller tables. Also, the 65 inch size and larger of the X900H have a different speaker configuration and are expected to have better performance.
|Size||North America Model||Costco Model||EU Model|
If someone comes across a different type of panel or if their Sony X900H doesn't correspond to our review, let us know and we will update the review. Note that some tests, such as the gray uniformity, may vary between individual units.
Our unit of the X900H was manufactured in May 2020; you can see the label here.
The Sony X900H is an overall great TV for most uses. It's very similar to its sibling, the Sony X950H, but is a better option for gaming due to its lower input lag. There are some tradeoffs, though, as the X900H doesn't get as bright and has narrower viewing angles compared to the X950H. For other options, check out our recommendations for the best TVs, the best 4k HDR TVs, and the best 4k gaming TVs.
The Sony X950H is slightly better than the Sony X900H overall. The X950H has better viewing angles, reflection handling, and it delivers a better HDR experience, as it has a better HDR color gamut and it can get brighter. However, the X900H has a higher contrast ratio since it doesn't have the 'X-Wide Angle' layer and it has a lower input lag. Also, the X900H is expected to get VRR and other features related to HDMI 2.1 in a future firmware update.
The Sony X90J is the Sony X900H's successor. They're very similar overall, but there are a few differences. Although both TVs use a VA panel, the X90J has a higher contrast ratio, which means it can display deeper blacks. Its color gamut isn't as good as the X900H's, but it gets significantly brighter in HDR to make highlights pop, and its brightness is more consistent due to a less aggressive Automatic Brightness Limiter (ABL).
The Sony X900H is significantly better than the Sony X800H. The X900H has a much higher contrast ratio due to its VA panel, it has local dimming, and it gets brighter overall. Response time is faster on the X900H; however, the X800H has lower input lag and its IPS panel has wider viewing angles.
For most uses, the Samsung Q80/Q80T QLED is better than the Sony X900H. The Samsung has a faster response time, lower input lag, and it supports VRR, making it a better option for gaming. The Samsung also gets brighter in HDR content to make highlights pop and its reflection handling is significantly better. However, the Sony has a higher contrast ratio and better local dimming, so it's a little better for dark room viewing, and although it doesn't have VRR support now, it should come in a future firmware update.
The Sony X80J and the Sony X900H use different panels, each with its advantages and disadvantages. Overall, though, the X900H is a step up from the X80J. The X900H uses a VA panel with a high contrast ratio and full-array local dimming, gets brighter and has more features, and has a slightly faster response time. It also has two HDMI 2.1 ports and should receive VRR and ALLM support in a future update.
The LG CX OLED is better than the Sony X900H. The LG is an OLED TV that can produce perfect blacks, which the Sony can't. The LG has wider viewing angles, better reflection handling, and its near-instantaneous response time results in almost no motion blur. Also, the LG supports VRR to reduce screen tearing when gaming, although the Sony is expected to get it in a future firmware.
The Sony X900H and the Sony X85J are very similar overall. The X85J has a higher native contrast ratio, but the X900H has a full array local dimming feature that can reduce blooming in dark scenes and improve contrast. On the other hand, the X85J has a flicker-free backlight, and the more recent Google TV interface is a bit faster than the older Android TV 9.0 interface on the X900H.
The Hisense H9G is somewhat better overall than the Sony X900H. The Hisense has a better contrast ratio, gets brighter, has much better reflection handling, and has a quicker response time. That said, the Sony has much better out-of-the-box color accuracy, it's better-built, and it has better gradient handling.
Overall, the Sony X900H performs better than the Samsung Q70/Q70T QLED. The Sony has full-array local dimming, and it has a much better response time, resulting in smoother motion. The Sony also feels better built. That said, the Samsung has a much better contrast ratio, which delivers deeper blacks.
The Sony X900H and the Sony X900F are very similar in their overall performance. The X900F has a higher contrast ratio, can get brighter, and has a faster response time. On the other hand, the X900H's local dimming performs better, it has a lower input lag, and it'll receive VRR support in a future firmware update.
The Sony X900H is better overall than the Samsung Q60/Q60T QLED. The Sony has a local dimming feature that allows it to display deep blacks, and it also gets brighter in HDR, so highlights pop the way the creator intended. The Sony also has a 120Hz panel, which results in a much quicker response time and smoother motion, and it has HDMI 2.1 support, which is great for next-gen console gamers.
The Sony X900H and the Samsung Q70/Q70A QLED both perform well, although the Sony delivers somewhat better picture quality. While the Samsung has a higher native contrast ratio, the Sony's is still quite high, and it has a full-array local dimming feature to improve black levels. The Samsung has a lower input lag and comes with VRR support, while the Sony doesn't yet have it but will receive VRR in a future update.
The Hisense U8G is better than the Sony X900H. The Hisense has much better reflection handling, higher peak brightness, better contrast, and a better local dimming feature. On the other hand, the Sony has better gray uniformity, and there's significantly less banding in areas of similar color.
The Sony X900H sits higher in the lineup than the Sony X750H, and has much better performance. The X900H delivers a better HDR experience because it gets much brighter and has a full-array local dimming feature that does a good job at improving its contrast. The X900H also has more gaming features like HDMI 2.1 support, allowing you to play 4k @ 120Hz games, which the X750H can't do.
The Sony X900H is better than the Samsung Q80/Q80A QLED, mainly because they have different panels. The Sony's VA panel has a higher contrast ratio that allows it to display deep blacks, and the local dimming feature is also better. However, the Samsung has an IPS-like panel with wider viewing angles. It also gets brighter, especially in HDR, and it has more gaming features like VRR support, but that may come in a future firmware update for the Sony.
The Sony X900H is better overall than the Samsung TU8000. The Sony is an upper-mid range TV that gets much brighter, and it has a full-array local dimming feature, which the Samsung doesn't have. The Sony also has HDMI 2.1 support for gaming, it displays a wide color gamut, and gets much brighter in HDR to deliver a better HDR experience. On the other hand, the budget-friendly Samsung has an improved contrast ratio, but this can vary between units.
The Samsung Q70/Q70R QLED and the Sony X900H both perform very similarly. The Samsung has a significantly better contrast ratio and black uniformity, giving it better dark room performance, while the Sony has better out-of-the-box color accuracy and better gray uniformity. Serious gamers will appreciate the native FreeSync support on the Samsung.
Overall, the Vizio P Series Quantum X 2020 is a bit better than the Sony X900H. The Vizio has a higher contrast ratio, gets brighter in both SDR and HDR, and has significantly better reflection handling. However, the Sony has better color accuracy out-of-the-box, a faster response time, and its Android TV platform runs smoother and has more apps available.
The Samsung Q90/Q90T QLED and the Sony X900H are two great TVs, although the Samsung is better for most uses. The Samsung gets much brighter, especially in HDR, and combined with its better local dimming feature, it offers a superior HDR viewing experience. It also has wider viewing angles thanks to Samsung's 'Ultra Viewing Angle', but that also means the Sony has a better native contrast ratio. In terms of gaming, the Samsung has VRR support, while the Sony doesn't yet have it, although it's supposed to receive it in an update.
The Vizio P Series Quantum 2020 and the Sony X900H are very similarly performing TVs. The Vizio has a higher contrast ratio, better color gamut, and gets brighter. However, the Sony has a better local dimming feature and better color accuracy. It also has more apps available due to the Google Play Store, and it can remove judder from all sources.
The Sony X900H is better overall than the LG NANO90 2021, mainly because they use different panel types. The Sony has a VA panel with a much higher contrast ratio and significantly better local dimming, so it's a better choice for watching movies in dark rooms. The Sony gets brighter, but the LG has much better reflection handling. Each TV has a 120Hz panel with HDMI 2.1 support; the LG has VRR support to reduce screen tearing, but that should come in a future firmware update for the Sony. Lastly, the LG has an IPS panel with wider viewing angles, so the image remains accurate when viewing from the side.
The Sony X900H is better overall than the LG NANO90 2020. The Sony has a VA panel, producing much deeper blacks, and it has a better full-array local dimming feature. It also gets brighter, has more accurate colors, and it has a more uniform screen. However, the LG has wider viewing angles due to its IPS panel, so it may be preferable if you have a wide seating arrangement.
The Sony X900H is a bit better than the TCL 6 Series/R635 2020. The Sony has much more accurate colors, it handles gradients a lot better, and it has a lower input lag. However, the TCL displays deeper blacks, gets brighter, and displays a wider color gamut.
The Sony X900H is better overall than the LG NANO85, but they have different panel types. The Sony has a VA panel with a much higher contrast ratio and improved local dimming, allowing it to display deep blacks. The Sony gets brighter, including in HDR, so highlights pop the way they should. On the other hand, the LG has an IPS panel with wider viewing angles. Each TV is supposed to support VRR, but neither TV does.
The Samsung QN85A QLED uses a different panel type than the Sony X900H, but they're both great TVs overall. The 55 inch version of the Samsung uses an IPS panel with a low native contrast ratio and wider viewing angles, while the Sony uses a VA panel with a high contrast ratio and poor viewing angles. The Samsung is better suited to wider seating arrangements and it has more gaming features if that's important to you. For instance, it supports FreeSync VRR and ALLM, while the Sony doesn't have VRR support yet. The Samsung also gets much brighter, and can really make HDR highlights pop, which the Sony may struggle with.
The LG BX OLED is much better overall than the Sony X900H, but they have different panel types. The LG has an OLED panel with self-emitting pixels, so it has an infinite contrast ratio and perfect black uniformity. It also has wider viewing angles, as well as VRR support, and a near-instant response time for gaming. On the other hand, the LED panel on the Sony gets much brighter, and it doesn't have the risk of permanent burn-in like the LG.
The Sony A80J OLED is better than the Sony X900H, mostly thanks to its OLED panel and near-infinite contrast ratio. The X900H is still a great TV, however, with a high contrast ratio and higher brightness than the A80J. It's a good option if you're worried about permanent burn-in with OLEDs. That said, the A80J has a faster response time, wider viewing angles, wider color gamut, and generally outperforms the X900H.
The Sony X900H is slightly better than the Hisense U7G for most users. The Sony has better black uniformity, a better local dimming feature, better gray uniformity, and it's more accurate out of the box. The Hisense is brighter, and it has better contrast. For gamers, the Hisense supports FreeSync variable refresh rate technology, but this is also supposed to be added to the Sony in a future update.
The Sony X900H is better than the Samsung The Frame 2021 overall, especially for watching movies and HDR content. This is because it has a full-array local dimming feature, gets a bit brighter in HDR, and its gradient handling is much better. It has a slightly better response time than the Samsung, but its input lag is higher, and it doesn't support VRR as this time, though the latter may be fixed in a firmware update. Unlike the Sony, the Samsung doesn't support Dolby Vision; it supports HDR10+ instead.
The LG GX OLED is better overall than the Sony X900H, but they have different panel types. The LG has an OLED panel, resulting in an infinite contrast ratio and perfect black uniformity. It also has a near-instant response time, so motion is smoother, and it has wider viewing angles. On the other hand, the Sony gets brighter, so it's a better choice for bright rooms, and it doesn't have permanent burn-in risk like OLEDs.
The Sony X900H and the Vizio P Series Quantum 2019 are very close in terms of overall performance, with the Sony being marginally better. The Sony has better black and gray uniformity, its out-of-the-box color accuracy is better, and it has a much lower input lag. The Vizio has a faster response time, though, and it has a much wider HDR color gamut.