Our Verdict
Good TV for a range of usages. Blacks appear gray and blotchy when viewed in a dark room such as watching movies at night, but in a bright room, the reflection handling is good and the TV can get bright to overcome glare. Image also remains accurate when viewed at an angle, which is good. Input lag is low and motion handling is great, which is great for PC use or gaming. The TV supports HDR, but it can't produce very vivid colors or bright highlights to take advantage of it.
- Feels responsive with low input lag
- Great motion handling
- Image remains accurate at an angle
- Blacks appear gray and blotchy in a dark room
Mediocre pick for watching movies in a dark room. Native contrast is low and the TV doesn't support local dimming so blacks appear gray and blotchy when viewed in a dark room. Movies are smooth when played from a Blu-ray player or native apps, but some small stutter may be noticeable when watching movies over cable.
Great choice for watching TV in a bright room. Image remains accurate when viewed at an angle, which is good for those with wide seating. The Sony X850F can get bright to overcome ambient glare which is great, and anti-reflective coating works well to reduce distracting reflections. Unfortunately, although the Android TV smart platform is very versatile, it is less intuitive and slower than other platforms for casual watching.
Great TV for watching sports in a bright room. Motion handling is great, thanks to the fast response time so only a short trail is seen behind a fast moving puck or football. Picture quality is only decent, but the image remains accurate when viewed at an angle which is good. The screen can get bright to overcome glare, and TV is great at handling reflections so it is a great fit for a bright room.
Great TV for gamers. Input lag is low, so the TV feels responsive, which is great. Motion handling is also great, and only a short trail can be seen behind fast-moving objects. Picture quality is only decent though, and blacks appear gray and blotchy in a dark room.
Mediocre TV for watching HDR movies. Picture quality is only mediocre, as blacks appear gray and blotchy in a dark room. Movies from a Blu-ray player or Netflix are smooth, but the X850F doesn't have a very wide color gamut and can't produce bright highlights.
Better than average for HDR gaming. The TV feels responsive due to low input lag and great motion handling. Unfortunately, blacks appear gray in a dark room, and the TV can't produce a very wide color gamut or bright highlights for HDR. Also, it doesn't support local dimming to improve the dark scene performance.
Great option for a monitor. Image remains accurate when viewed at an angle, which is great when viewing the edge of the screen from close up for PC use. The TV supports chroma 4:4:4 for clear text on all backgrounds, and it feels responsive due to low input lag and great motion handling.
Changelog
- Updated May 21, 2020: Converted to Test Bench 1.5.
- Updated Feb 21, 2020: Converted to Test Bench 1.4.
- Updated Feb 28, 2019: Converted to Test Bench 1.3.
- Updated Jun 12, 2018: A note for Xbox One X and Xbox One S owners: 1080p @ 120 Hz from the Xbox is only supported on this TV when the Xbox's connection type is changed from Auto-detect (Recommended) to HDMI, but unfortunately in this mode 4k and HDR aren't supported.
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Differences Between Sizes And Variants
We tested the 65" (XBR65X850F). For the most part, we expect our review to be valid for the 75" (XBR75X850F).
We haven't tested the 85" (XBR85X850F), but it likely uses a VA panel (similar to the 85" X850D) with a high native contrast ratio producing deeper blacks, but the image degrades when viewed at an angle.
The European variant of the TV is also known as the XF85 or XF87 and comes in a different range of sizes as shown below. We have received reports that the 49" variant of the X850F available in Europe has a VA panel, as shown in this photo of the pixels. This size likely has better dark room performance but a narrow viewing angle.
Update 02/20/2019: We have also received reports of a 55" XF85 with a VA panel.
If someone comes across a different type of panel or if their Sony X850F 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.
| Size | US Model | Alternative Name | UK Model | VESA Mount Size |
| 43" | KD-43XF8505 KD-43XF8577 KD-43XF8796 |
100x200 | ||
| 49" | KD-49XF8505 KD-49XF8577 KD-49XF8796 |
200x200 | ||
| 55" | KD-55XF8505 KD-55XF8577 KD-55XF8796 |
300x200 | ||
| 65" | XBR65X850F | XBR-65X850F | KD-65XF8505 KD-65XF8796 |
300x300 |
| 75" | XBR75X850F | XBR-75X850F | KD-75XF8596 | 400x300 |
| 85" | XBR85X850F | XBR-85X850F | KD-85XF8596 | 400x400 |
Popular TV Comparisons
The Sony X850F is a good pick for a bright room with wide seating as the low native contrast ratio makes blacks appear gray in a dark room, but the image remains accurate when viewed at an angle. See our picks below for how it compares to the competition. See our recommendations for the best smart TVs and the best flatscreen TVs.
If you've got a bright room with wide seating, then the Sony X850F is a better choice due to its better viewing angles and better reflection handling. But for a dark room with seating directly in-front, the Sony X850E is better. The Sony X850F has marginally better input lag for video games and HDR gaming and is slightly better as a PC monitor. On the other hand, the Sony X850E has a much better contrast ratio and better black uniformity that make it a better choice for movies in a dark room.
The Sony X850F is better than the Sony X750F. The Sony X850F can get brighter and has better reflection handling, so you can place it in a brighter room without issues. The Sony X850F also has a faster response time, can remove 24p judder, and has a motion interpolation feature. Finally, the X850F has a lower input lag, which is great for video games. The Sony X750F, on the other hand, has better color accuracy out of the box.
There are very few differences between the Sony X850F and the Sony X850G. The 2019 X850G has much lower input lag, and it supports eARC. Other than that, these two TVs perform very similarly.
The Sony X950G and the Sony X850F use different panel types, each with strengths and weaknesses. Overall, the X950G is much better than the X850F. The X950G has a much better dark room performance, but the image degrades when viewed from the side. The X850F maintains a more accurate image when viewed from the side, at the expense of worse dark room performance.
We buy and test dozens of TVs yearly, taking an objective, data-driven approach to deliver results you can trust. Our testing process is complex, with hundreds of individual tests that take over a week to complete. Most of our tests use specially designed test patterns that mimic real content, but we also use the same sources you have at home to ensure our results match the real-world experience. We use two main tools for our testing: a Colorimetry Research CR-100 colorimeter and a CR-250 spectroradiometer.
Test Results
Older Test Bench: This product has been tested using an older TV test methodology, before a major update. Some of the test results below aren't directly comparable with other TVs. Learn more
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