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Reviewed on Sep 20, 2018

Sony X750F
TV REVIEW

Usage Ratings - Version 1.3
7.3
Mixed Usage
Value for price beaten by
: Vizio P Series 2018
6.1
Movies
7.8
TV Shows
7.8
Sports
7.8
Video Games
6.0
HDR Movies
7.2
HDR Gaming
8.2
PC Monitor
Type : LED
Sub-Type
:
IPS (only 55")
Resolution : 4k

The Sony X750F is a decent 4k IPS TV. It has decent picture quality which you can also view from an angle without loss of quality, but unfortunately, this comes at the expense of poor blacks in dark rooms. The TV has great out of the box color accuracy and good gray uniformity so slow panning landscape shots will look good. Brightness is decent, but only enough for an average lit room. Movie and HDR performance are mediocre as the TV has low native contrast ratio, and lacks a wide color gamut to display rich, saturated colors and to make highlights pop.

Test Results
Design 8.5
Picture Quality 7.2
Motion 7.6
Inputs 8.1
Sound Quality 5.5
Smart Features 8.0
Pros
  • Excellent out of the box color accuracy
  • Good gray uniformity
Cons
  • Blacks look grayish in a dark room
  • Poor HDR performance
Update 3/29/2019: There was a mistake in the BFI scoring. We have corrected it.
Update 2/28/2019: Converted to Test Bench 1.3. Learn more about our versioned test bench system here.

Check Price

65" KD65X750F
SEE PRICE
B&H
8.5

Design

Curved : No

The design of the Sony X750F resembles very much the design of the Sony X830F. The stand supports the TV well and has a plain and sturdy design that allows for a soundbar to be placed in front. The stand also serves as the TVs cable management path as it routes the cables through its rear legs. The back of the TV is plain, and although the X750F is a little thick, it will not protrude much if wall mounted. The build quality is good and at par with most Sonys.

Stand

The stand of the X750F is a blend. It is fully plastic but the front part of each leg has a metallic tint whereas the rear part is black and has a channel to route cables. Unlike the X830F, you can not reverse the legs so that the front becomes back, nor can you switch the left leg with the right one. The stand supports the TV well but does not prevent wobbling. It is almost as wide as the TV itself so you will need a wide table.

Footprint of the 55" TV stand: 39.8" x 13.6"

Back
Wall Mount : VESA 200x200

The back is plastic and resembles a lot the back of the X830F but it has a little bulkier feel. Cable management is well thought of as cables can be routed through the legs of the stand. However, if you wall-mount the TV, you might have some difficulty accessing some of the ports.

Borders
Borders : 0.61" (1.6 cm)

The borders of the Sony X750F are plastic and have an average thickness.

Thickness
Max Thickness : 3.11" (7.9 cm)

The Sony X750F is thicker than most 2018 TVs we've tested. It is very similar to the X830F, but thicker than the X850F and the X900F. However, this should not be an issue if wall mounted.

Temperature
Maximum Temperature
:
99 °F (37 °C)
Average Temperature
:
95 °F (35 °C)

The Sony KD55X750F runs fairly cool and thus the operating temperature should not be an issue.

7.5 Build Quality

The build quality of the X750F is good. There are no gaps or loose ends and you should have no issue with it.

7.2

Picture Quality

The picture quality of the Sony X750F is decent. The contrast ratio is low, and the TV cannot display deep uniform blacks, which is noticeable when you are in a dark room. It can get reasonably bright, but not bright enough to overcome the glare of a bright room. The color accuracy out of the box is remarkable, and most people will not need to calibrate to correct any color inaccuracies. The viewing angles are decent, and you can watch the TV from small angles without sacrificing picture quality. Gray uniformity is good as is reflection handling.

5.9 Contrast
Native Contrast
:
958 : 1
Contrast with local dimming
:
N/A

The native contrast ratio is disappointing. This is expected from an IPS panel and the result is very similar to the higher end model X850F.

Update 09/21/2018: We have heard reports that the 65" model has a VA panel. We haven't confirmed this, but if so we expect it to have a higher contrast ratio (3000:1 or more) but poor viewing angles.

0 Local Dimming
Local Dimming
:
No
Backlight
:
Direct

The Sony KD55X750F does not support local dimming. The video is for reference only.

6.8 SDR Peak Brightness
SDR Real Scene Peak Brightness
:
227 cd/m²
SDR Peak 2% Window
:
280 cd/m²
SDR Peak 10% Window
:
280 cd/m²
SDR Peak 25% Window
:
280 cd/m²
SDR Peak 50% Window
:
280 cd/m²
SDR Peak 100% Window
:
280 cd/m²
SDR Sustained 2% Window
:
279 cd/m²
SDR Sustained 10% Window
:
280 cd/m²
SDR Sustained 25% Window
:
280 cd/m²
SDR Sustained 50% Window
:
280 cd/m²
SDR Sustained 100% Window
:
280 cd/m²
SDR ABL
:
0.000

Decent SDR peak brightness. The TV cannot get bright enough to fight glare and thus it is not suitable for a very bright room. The good news is that the brightness level remains constant regardless of the window size.

6.2 HDR Peak Brightness
HDR Real Scene Peak Brightness
:
300 cd/m²
HDR Peak 2% Window
:
362 cd/m²
HDR Peak 10% Window
:
362 cd/m²
HDR Peak 25% Window
:
362 cd/m²
HDR Peak 50% Window
:
363 cd/m²
HDR Peak 100% Window
:
362 cd/m²
HDR Sustained 2% Window
:
361 cd/m²
HDR Sustained 10% Window
:
362 cd/m²
HDR Sustained 25% Window
:
362 cd/m²
HDR Sustained 50% Window
:
362 cd/m²
HDR Sustained 100% Window
:
362 cd/m²
HDR ABL
:
0.000

Decent HDR peak brightness for the X750F. It cannot get as bright as X900F, or the even X850F but the brightness level remains constant as the window size increases.

If you find HDR content too dim, see our recommended settings.

7.6 Gray Uniformity
50% Std. Dev.
:
4.609 %
50% DSE
:
0.156 %
5% Std. Dev.
:
0.573 %
5% DSE
:
0.102 %

The overall gray uniformity of the X750F is good. Very similar to the other Sony models from the last two years. The results of the 50% gray is a little worse than the 5% gray. You can notice the sides and the corners of the screen that are darker than the center. The good news is that there is not much dirty screen effect visible, and thus sports will look good.

7.9 Viewing Angle
Color Washout
:
39 °
Color Shift
:
55 °
Brightness Loss
:
40 °
Black Level Raise
:
70 °
Gamma Shift
:
49 °

Decent viewing angles. The image remains fairly constant as you view it from a fairly wide angle. The result is at par with other IPS sony models like the X800E and X850F but is slightly worse than last year's X720E.

Update 09/21/2018: We have heard reports that the 65" model has a VA panel. We haven't confirmed this, but if so we expect it to have a higher contrast ratio (3000:1 or more) but poor viewing angles.

5.5 Black Uniformity
Native Std. Dev.
:
2.304 %
Std. Dev. w/ L.D.
:
N/A

Disappointing black uniformity for the Sony KD55X750F. There is clouding scattered around the screen and obvious backlight bleed in the bottom and top sides of the screen. Very comparable results to the higher end model X850F.

7.7 Reflections
Screen Finish
:
Semi-gloss
Total Reflections
:
5.7 %
Indirect Reflections
:
0.4 %

The Sony KD55X750F has good reflection handling, better than last year's X720E and X800E. The TV is capable of diffusing well the indirect reflections, or ambient light, but does not do as well with the reflections of light sources directly opposite the screen.

8.7 Pre Calibration
White Balance dE
:
1.03
Color dE
:
2.59
Gamma
:
2.20
Color Temperature
:
6575 K
Picture Mode
:
Custom
Color Temp Setting
:
Expert 1
Gamma Setting
:
0

Excellent out of the box color accuracy of the Sony X750F. This accuracy is very close to that of the X900F and much better than the X830F or the X850F. Most people will be satisfied with this TV out of the box and the TV won't benefit much from a professional calibration.

'Custom' is the most accurate picture mode out of the box with white balance dE and Color dE at very low levels, and most people will not notice any inaccuracies. Gamma is spot on our target of 2.2. The gamma curve is followed quite accurately until the higher input levels where the TV is slightly brighter than our stimulus.

9.0 Post Calibration
White Balance dE
:
0.29
Color dE
:
2.61
Gamma
:
2.20
Color Temperature
:
6484 K
White Balance Calibration
:
10 point
Color Calibration
:
No
Auto-Calibration Function
:
No

Excellent results after calibration for the X750F. The gray inaccuracies almost disappeared although the color inaccuracies were not improved.

Overall, the calibration was able to improve the accuracy only slightly, as the TV was already very accurate out of the box. Also, the color dE could not be diminished because Sony TVs do not have a color management system. Unfortunately, the final result is not as accurate as the X850E or the X830F.

You can see our recommended settings here.

8.0 480p Input

480p content is upscaled well, although some minor artifacts are present, the TV handles it well.

8.0 720p Input

Upscaling of 720p is good. The image is clear despite some softness.

9.0 1080p Input

1080p content from a Blu-ray or game console is upscaled well.

10 4k Input

Native 4k input is displayed without any issues.

6.9 Color Gamut
Wide Color Gamut
:
No
DCI P3 xy
:
76.82 %
DCI P3 uv
:
82.66 %
Rec 2020 xy
:
55.12 %
Rec 2020 uv
:
60.23 %

The HDR color gamut of the X750F is decent. The Rec 2020 coverage, however, is limited and does not meet our threshold for a wide color gamut TV. In very colorful scenes the TV's limited color gamut will be noticeable.

The HDR EOTF in 'Custom' picture mode with Contrast at 90 follows the target PQ quite well. The results in the 'Game' picture mode and in 'PC' picture mode are almost identical.
If you raise contrast to 'max' you can get a slightly brighter image but with a more abrupt clipping of the brighter highlights, as shown in this plot.

If you find HDR content too dark you can raise the Contrast to 'max', Gamma to max and Adv. contrast enhancer to 'High' to raise the EOTF. This will have a result of almost everything being brighter, as shown in this plot, at the expense of earlier rolling off.

5.6 Color Volume
Normalized DCI P3 Coverage ITP
:
63.8 %
10,000 cd/m² DCI P3 Coverage ITP
:
27.1 %
Normalized Rec 2020 Coverage ITP
:
48.6 %
10,000 cd/m² Rec 2020 Coverage ITP
:
20.6 %

The low contrast ratio and the limited color gamut do not allow it to have a good color volume result. Thus its performance in this test is sub-par and the worst among this year's Sonys that we've tested.

8.1 Gradient
Color Depth
:
10 Bit
Red (Std. Dev.)
:
0.116 dE
Green (Std. Dev.)
:
0.116 dE
Blue (Std. Dev.)
:
0.104 dE
Gray (Std. Dev.)
:
0.092 dE

The gradient of the Sony X750F is great. Gray is excellent as with most Sonys, but there is some banding in the other colors.

Even if you do notice a case of major banding that bothers you, you can use Random noise reduction for analog (film) or Digital noise reduction for older digital content to reduce it, but this can result in a loss of some fine details.

10 Temporary Image Retention
IR after 0 min recovery
:
0.00 %
IR after 2 min recovery
:
0.00 %
IR after 4 min recovery
:
0.00 %
IR after 6 min recovery
:
0.00 %
IR after 8 min recovery
:
0.00 %
IR after 10 min recovery
:
0.00 %

Like most IPS and VA panels, after the exposure of our test image, there is no sign of temporary image retention.

10 Permanent Burn-In Risk
Permanent Burn-In Risk
:
No

We don't expect IPS panels to experience permanent image retention, as the IPS panel in our long-term test appears immune.

Pixels

Most IPS monitors have a chevron shaped pixel layout, but this one is different. The last time we found an IPS monitor whose pixel shape did not resemble the chevron shape was when we reviewed the Sony W600D.

7.6

Motion

Good motion handling for this Sony X750F. It has a fast response time that leaves a small blur trail behind the image that makes it look smooth. If you wish to make it more clear at the expense of brightness you have the option of introducing flicker with the aid of the black frame insertion feature. This TV will also keep fans of the soap opera effect happy with its motion interpolation feature. Finally, it does not support any variable refresh rate implementation to remove screen tearing from graphically demanding games and its 24p judder removal feature implementation is sub-par.

8.1 Response Time
80% Response Time
:
6.3 ms
100% Response Time
:
15.8 ms

Great fast response time for this KD55X750F, although slower than X850F. The response time allows for a small blur trail as you can see in the motion blur picture.

10 Flicker-Free
Flicker-Free
:
No
PWM Dimming Frequency
:
0 Hz

The TV has no visible flicker in its backlight as it dims, which is great as it makes motion look smoother.

We did measure some flicker with our photodiode tool, but this will not be visible in person even at the lowest brightness settings.

10 Black Frame Insertion (BFI)
Optional BFI
:
Yes
Min Flicker for 60 fps
:
60 Hz
60 Hz for 60 fps
:
Yes
120 Hz for 120 fps
:
N/A
Min Flicker for 60 fps in Game Mode
:
60 Hz

The Sony X750F supports black frame insertion only at 60Hz. This feature can help clear up blur by flickering the backlight and thus removing persistence blur. To do so set Motionflow to 'Custom' and increase the 'Clearness' slider.

Update 03/29/2019: The 120 Hz for 120 fps was scored incorrectly. The score has increased.

7.0 Motion Interpolation
Motion Interpolation (30 fps)
:
Yes
Motion Interpolation (60 fps)
:
No

The Sony X750F has a 60Hz panel which can interpolate lower frame rate content up to 60p. To enable interpolation, set Motionflow to 'Custom' and increase the 'Smoothness' slider to your liking. Any motion interpolation introduces artifacts, so unless you really like the soap opera effect, use it with caution.

7.8 Stutter
Frame Hold Time @ 24 fps
:
25.9 ms
Frame Hold Time @ 60 fps
:
0.9 ms

Very good stutter performance. Although the response time is fast to allow for a quick transition there is some blur which helps to smooth the transition in low frame rate content.

5.6 24p Judder
Judder-Free 24p
:
Yes
Judder-Free 24p via 60p
:
No
Judder-Free 24p via 60i
:
No
Judder-Free 24p via Native Apps
:
No

The TV can automatically remove 24p judder from older movies. Unfortunately, it cannot remove the 24p judder if it is found within a 60p or 60i signal or within the Native Apps. If judder is really an issue you can set Motionfllow to 'Smooth' and Cinemotion to 'Auto'. This will help remove judder, but it will add some motion interpolation

0 Variable Refresh Rate
Native Refresh Rate
:
60 Hz
Variable Refresh Rate
:
No
4k VRR Maximum
:
N/A
4k VRR Minimum
:
N/A
1080p VRR Maximum
:
N/A
1080p VRR Minimum
:
N/A
1440p VRR Maximum
:
N/A
1440p VRR Minimum
:
N/A
VRR Supported Connectors
:
N/A

The Sony X750F does not support variable refresh rate, and thus can not improve game performance by removing tearing.

8.1

Inputs

The Sony KDX750F has a low input lag to keep most casual gamers happy, and it also supports 4:4:4 chroma and the text looks clear when used as a PC monitor.

NoteOnly HDMI ports 2 and 3 support full bandwidth, but HDMI port 3 is also the ARC (audio return channel). If you have a receiver that supports ARC and more than 1 device which requires the full bandwidth of HDMI then you might have some issues connecting all of your devices. In this case, it may be best to connect your receiver using an optical (Toslink) cable.

8.1 Input Lag
1080p @ 60 Hz
:
33.2 ms
1080p @ 60 Hz Outside Game Mode
:
50.1 ms
1440p @ 60 Hz
:
34.6 ms
4k @ 60 Hz
:
35.5 ms
4k @ 60 Hz + 10 bit HDR
:
35.6 ms
4k @ 60 Hz @ 4:4:4
:
35.6 ms
4k @ 60 Hz Outside Game Mode
:
55.2 ms
4k @ 60 Hz With Interpolation
:
68.9 ms
8k @ 60 Hz
:
N/A
1080p @ 120 Hz
:
N/A
1440p @ 120 Hz
:
N/A
4k @ 120 Hz
:
N/A
1080p with Variable Refresh Rate
:
N/A
1440p with VRR
:
N/A
4k with VRR
:
N/A
8k with VRR
:
N/A
Auto Low Latency Mode (ALLM)
:
No

The Sony KD55X750F has a great low input lag which will keep most casual gamers happy. To obtain the lowest possible input lag make sure you are in 'Game' or 'Graphics' mode.

8.3 Supported Resolutions
1080p @ 60 Hz @ 4:4:4
:
Yes
1080p @ 120 Hz
:
No
1440p @ 60 Hz
:
Yes (forced resolution required)
1440p @ 120 Hz
:
No
4k @ 60 Hz
:
Yes
4k @ 60 Hz @ 4:4:4
:
Yes
4k @ 120 Hz
:
No
8k @ 30 Hz or 24 Hz
:
No
8k @ 60 Hz
:
No

The X750F, just like the X850F, supports most common input signals but no 120Hz.

To properly display chroma 4:4:4, the Picture mode must be set to 'Graphics' or 'Game'. When the TV is sent a 1080p signal in 'Graphics' mode, the upscaling changes to the jagged nearest-neighbor upscaling type, seen here on the X900E, that some people prefer for PC use.

Only HDMI ports 2 and 3 support HDMI full bandwidth, so 4k @ 60Hz @ 4:4:4 or 4:2:2 is only possible on these two ports and only when Enhanced format is enabled on the TV.

Sharpness 50 (default) means no added sharpness in Graphics mode.

Input Photos
Total Inputs
HDMI : 4
USB : 3
Digital Optical Audio Out : 1
Analog Audio Out 3.5mm : 1
Analog Audio Out RCA : 0
Component In : 1 (shared)
Composite In : 1 (shared)
Tuner (Cable/Ant) : 1
Ethernet : 1
DisplayPort : 0
IR In : 1
SD/SDHC : 0
Inputs Specifications
HDR10
:
Yes
HDR10+
:
No
Dolby Vision
:
No
HLG
:
Yes
3D
:
No
HDMI 2.0 Full Bandwidth
:
Yes (HDMI 2, 3)
HDMI 2.1
:
No
CEC : Yes
HDCP 2.2 : Yes (HDMI 1,2,3,4)
USB 3.0
:
Yes (1)
Variable Analog Audio Out : Yes
Wi-Fi Support : Yes (2.4 GHz, 5 GHz)
Audio Passthrough
ARC
:
Yes (HDMI 3)
eARC support
:
No
Dolby Atmos via TrueHD via eARC
:
No
DTS:X via DTS-HD MA via eARC
:
No
5.1 Dolby Digital via ARC
:
Yes
5.1 DTS via ARC
:
Yes
5.1 Dolby Digital via Optical
:
Yes
5.1 DTS via Optical
:
Yes
5.5

Sound Quality

The sound of the Sony X750F is mediocre-at-best. This TV gets pretty loud, and produces clear and intelligible dialog. However, it doesn't produce any sub-bass and therefore lacks thump and punch to its bass. For a better sound, dedicated speakers or soundbars are recommended.

5.9 Frequency Response
Low-Frequency Extension
:
126.99 Hz
Std. Dev. @ 70
:
4.89 dB
Std. Dev. @ 80
:
5.34 dB
Std. Dev. @ Max
:
6.76 dB
Max
:
91.2 dB SPL
Dynamic Range Compression
:
3.52 dB

The frequency response of the X750F is mediocre-at-best. The LFE (low-frequency extension) of 127Hz indicates a bass that produces no thump, rumble, or punch, which is common to bass-heavy film scores and video game sound effects. However, the bump around 200Hz compensates for this lack somewhat, by making the sound a bit fuller. The response above 200Hz is very good and even, which is important for producing clear and intelligible dialog. Additionally, this TV gets pretty loud, without producing too much compression and pumping artifacts.

4.4 Distortion
Weighted THD @ 80
:
0.197
Weighted THD @ Max
:
13.249
IMD @ 80
:
144.51 %
IMD @ Max
:
75.95 %

The distortion performance of the X750F is sub-par. The overall amount of THD produced at 80dB SPL is within decent limits, however like most other Sony TVs, there is a big jump in THD under maximum load. But this won't be very noticeable in real-life situations.

8.0

Smart Features

Smart OS : Android TV
Version : 7.0

The Sony X750F uses the same Android TV found in the other Sony TVs models we have reviewed this year. Just like the X850F or the X830F, it has numerous built-in apps and you can download many more from the Google Play Store. The interface is decent, but it can be slightly laggy sometimes and the animations can be choppy. You can quickly access Google Assistant through the remote and you can search for apps or content by voice, but you cannot change the TV settings.

7.0 Interface
Ease of Use
:
Average
Smoothness
:
Not Smooth
Time Taken to Select YouTube
:
4 s
Time Taken to Change Backlight
:
5 s
Advanced Options
:
Many

The interface of the X750F is decent. The TV runs the Android TV interface which is intuitive but crowded and some might not find pleasant to use. The home screen is long and it can take a lot of scrolling before you reach to the menu item you want. Just like the X830F, the interface has an inconsistent behavior where sometimes it is fast, and other times it lags and animations become choppy. The home menu does not respond quickly and this is unfortunate considering its use frequency. The good news is that there are many buttons on the remote that allow you to navigate quickly where you want, and the voice control feature that can also help.

10 Ad-Free
Ads
:
No
Opt-out
:
N/A
Suggested Content in Home
:
Yes
Opt-out of Suggested Content
:
Yes

The Sony KD55X750F does not have ads. There is suggested content by default just like the other 2018 Sony TVs we tested, but that can be disabled in the TV's Home settings.

9.0 Apps and Features
App Selection
:
Very Many
App Smoothness
:
Average
Cast Capable
:
Yes
USB Drive Playback
:
Yes
USB Drive HDR Playback
:
Yes
HDR in Netflix
:
Yes
HDR in YouTube
:
No

The Android TV gives the X750F access to the Google Play store where you can choose from thousands of apps.

8.0 Remote
Size
:
Large
Voice Control
:
Many Features
CEC Menu Control
:
Yes
Other Smart Features
:
No

The Sony X750F includes the same remote as the X850F. It has more buttons than most remotes and is quite large, but with good usability. Buttons are easy to find and it doesn't take long to access most basic functions of the TV.

The included voice button works well to access Google Assistant, but the remote must be connected to the TV via Bluetooth for this to work. Google Assistant can perform most basic actions on the TV, such as changing inputs or opening certain apps. More advanced functions such as changing picture settings do not work.

7.0 Remote App
Acts as the Remote
:
Yes
Directly Launches Apps and Inputs
:
Both
Inputs Text in YouTube
:
No
Inputs Text in Netflix
:
No
Streams Device Files
:
Yes
Controls TV Settings
:
No
Voice Control
:
Yes

You can download from Google Play and iOS, Sony's 'Video & TV SideView: Remote'. This will allow video files from a smartphone to be cast on the X750. The app also allows your smartphone to control other Sony devices including Blu-ray players or home theater systems. Unfortunately, the app does not allow you to input text in any of the TV apps, even though you can input text in the android text boxes.

TV Controls

The usual three small buttons found in most Sony TVs are also present in this TV. They provide basic TV control like on or off, volume up/down and channel or input change.

In The Box

  • Manual
  • IR Blaster
  • Remote
  • Batteries
  • Not shown: 61" Power Cable

Misc
Power Consumption : 64 W
Power Consumption (Max) : 147 W
Firmware : PKG6.5629.0177NAA

Differences between Sizes and Variants

We tested the 55" (KD55X750F). For the most part, we expect our review to be valid for the 65" model (KD65X750F), and the 43" and 49" models currently available in Canada and the UK. The UK variant of the TV is also known as the Sony XF75.

The 43" and 49" models have an external power adapter (brick), the 55" and 65" have it built-in.

If someone comes across a different type of panel or if their Sony X750F 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 Canada Model UK Model VESA Mount Size
43"   KD-43X750F KD-43XF7596 100x200
49"   KD-49X750F KD-49XF7596 200x200
55" KD55X750F KD-55X750F KD-55XF7596 200x200
65" KD65X750F KD-65X750F KD-65XF7596 300x200

We have received reports that the 65" model has a VA panel. We don't know about the 43" and 49" models.

The TV we've tested was manufactured in June 2018.

Compared to other TVs

Top left: Vizio E Series 2018 (E65-F0). Bottom left: Samsung NU7100 (UN55NU7100). Middle: Sony X750F (KD55X750F). Top right: Sony X830F (XBR60X830F). Bottom right: LG UK7700 (55UK7700PUD).  Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

The Sony X750F is a decent TV that performs better for casual TV watching. See our recommendations for the best 4k TVs and the best flatscreen TVs.

Sony X850F
65" 75" 85"

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.

Samsung NU7100
40" 43" 50" 55" 58" 65" 75"

If you have a room with wide seating arrangement, the Sony X750F is a better choice than the Samsung NU7100 as it has better viewing angles. But if you have a dark room with seating directly right in front, then the Samsung NU7100 is better. The Samsung has deeper blacks, and you will enjoy watching movies more. The Samsung also has lower input lag, and this is great if you play video games. On the other hand, the Sony can remove 24p judder from older content.

Sony X800E
43" 49" 55"

The Sony X750F is a bit better than the Sony X800E. The X750F has better reflection handling and is more suitable for a room with many small light sources. On the other hand, the Sony X800E can get brighter in SDR and can fight bright room glare and has a wider color gamut. If you wish to eliminate blur and make the image crisper, the X750F has a much better BFI performance and can insert 60Hz flicker to do that.

Sony X900F
49" 55" 65" 75" 85"

These two TVs have different panel types. If you have a room with a wide seating arrangement, then the Sony X750F might be the better choice as the image remains accurate when viewed from the side. In most other cases, however, the Sony X900F seems to be the better choice. The X900F has much better dark room performance and can get much brighter both in SDR and in HDR. The X900F has better motion handling, and the image is crisp with minimal blur trail thanks to the faster response time. The X900F has better reflection handling and can remove 24p judder from any source.

Samsung NU8000
49" 55" 65" 75" 82"

These are two different types of TVs. If you have a large room with a wide seating arrangement, then Sony X750F is a better choice as the image remains accurate when viewed from the side. If, however, you sit straight in front and like watching movies in a dark room, then the Samsung NU8000 is a better choice as it can display deeper and more uniform blacks and can remove 24p judder from any source. The Sony X750F is flicker-free, which is great if you're sensitive to flicker, but the Samsung NU8000 is better for playing video games as it supports FreeSync and has a lower input lag. Finally, the Samsung NU8000 can get brighter both in SDR and in HDR.

Samsung RU7100
43" 50" 55" 58" 65" 75"

The Samsung RU7100 and the 55" Sony X750F use different panel types, each with their own advantages and disadvantages. The RU7100 and the 65" X750F use VA panels, which deliver better dark room performance, but the image degrades at an angle. The 55" X750F uses an IPS panel, which looks better in a bright room, and has wide viewing angles. The RU7100 also has much lower input lag, but can't remove judder from any source.

TCL 6 Series/R617 2018
55" 65" 75"

The TCL R617 is much better than the Sony X750F. The TCL has better blacks and better HDR performance due to the high native contrast ratio and local dimming support. It also has better brightness and a wide color gamut, and in HDR, it can make highlights pop. It has lower input lag which is important if you play games or use the TV as a PC monitor. On the other hand, the Sony has better viewing angles and is more suitable for wide seating arrangements.

LG UK7700
55" 65"

The LG UK7700 is better than the Sony X750F. The LG supports local dimming to improve quality of blacks and also has lower input lag, which is great if you play video games or use it as a PC monitor. The LG can handle reflections better and you can easily place it in a bright room like a kitchen without issues. On the other hand, the Sony X750F has better black frame insertion that can clear the image blur better.

Vizio M Series 2018
55" 65" 70"

The Vizio M Series 2018 is much better than the Sony X750F. The Vizio can get brighter, has better blacks due to better contrast ratio and local dimming support, and offers a better movie experience in a dark room. The Vizio also has a lower input lag which you will appreciate if you play video games or use the TV as a PC monitor. On the other hand, the Sony X750F has better viewing angles for wide seating arrangements and a motion interpolation feature to please the soap opera effect fans.

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Conclusion
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7.3 Mixed Usage
This is a decent TV for mixed usage. Its viewing angles allow you to watch it from the side so it is a TV that you can place in a wide room. It does not have deep blacks so it is not suitable for a dark room but rather for an average lit room where lights are not directly facing the screen. It will perform better when watching sports or TV shows or playing a casual game.
6.1 Movies
This is a mediocre TV for watching movies in a dark room. Blacks look gray as the TV's contrast ratio is disappointing and the 24p judder removal feature will not work well from external players that send 60p or 60i signals. Motion handling is decent and fast motion will look smooth, but the limited color gamut does not allow the TV to produce rich, saturated colors to improve picture quality.
7.8 TV Shows
This is a good TV for watching TV shows. You can easily place it in an average lit room and you do not have to watch from straight in front to enjoy the same picture quality. It has a motion interpolation feature for the fans of the soap opera effect. This TV is a good choice if you will spend most of your time watching TV shows.
7.8 Sports
The Sony X750F is a good TV for watching sports. You can place it in a large fairly bright room and you can invite your friends to watch your favorite team play. It has wide viewing angles, good reflection handling and a fast response time that displays fast motion smoothly. Gray uniformity is good so you will not notice any dirty screen effect and the cable signal is upscaled well so that you enjoy every little detail of the pitch.
7.8 Video Games
The Sony X750F performs well in video games. It has a low input lag and feels very responsive to your inputs. Its response time is fast, so fast action scenes look smooth. Unfortunately, if you play in a dark room, blacks will look grayish due to the sub-par contrast ratio. The TV does not support any of the more advanced gaming features like VRR, but this will not be an issue if you are a casual gamer.
6.0 HDR Movies
This is a mediocre TV for watching HDR Movies. The contrast ratio is low, and blacks look gray in a dark room where HDR is meant to be watched. The brightness level is not enough, and the limited color gamut is not allowing you to enjoy a rich and saturated image that depicts the directors intent. If HDR movies are what you are looking for, this TV should not be at the top of your list.
7.2 HDR Gaming
The HDR gaming performance of this TV is decent. This is mainly due to the low input lag the TV has on 4k @ 60Hz + HDR signal, and the fast response time. Unfortunately, the contrast ratio is low and the color gamut is limited so HDR performance is not good and the picture quality is not what the game director intended.
8.2 PC Monitor
This is a good TV for use as a PC monitor. The viewing angles are decent and thus you will not have any uniformity issues if you sit close. The response time is good so only a small trail will follow your mouse movements and the TV will feel very responsive due to the low input lag. Reflections are also good and the TV is capable of displaying clear and crisp text.

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