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Sony X750F TV Review

Tested using Methodology v1.5
Updated Sep 20, 2018 at 08:52 am
Sony X750F Picture
6.6
Mixed Usage
Value for price beaten by
: no price info
5.8
Movies
Value for price beaten by
: no price info
7.5
TV Shows
Value for price beaten by
: no price info
7.3
Sports
Value for price beaten by
: no price info
6.8
Video Games
Value for price beaten by
: no price info
5.5
HDR Movies
Value for price beaten by
: no price info
6.2
HDR Gaming
Value for price beaten by
: no price info
7.6
PC Monitor
Value for price beaten by
: no price info
This TV was replaced by the Sony X750H
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.

Our Verdict

6.6 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.

Pros
  • Excellent out of the box color accuracy
  • Good gray uniformity
Cons
  • Blacks look grayish in a dark room
  • Poor HDR performance
5.8 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.

7.5 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.

7.3 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.

6.8 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.

5.5 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.

6.2 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.

7.6 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.

  • 6.6 Mixed Usage
  • 5.8 Movies
  • 7.5 TV Shows
  • 7.3 Sports
  • 6.8 Video Games
  • 5.5 HDR Movies
  • 6.2 HDR Gaming
  • 7.6 PC Monitor
  1. Update 7/23/2020: In accordance with our current testing methodology, the backlight is now considered flicker-free.
  2. Update 5/21/2020: Converted to Test Bench 1.5.
  3. Update 2/21/2020: Converted to Test Bench 1.4.
  4. Update 3/29/2019: There was a mistake in the BFI scoring. We have corrected it.
  5. Update 2/28/2019: Converted to Test Bench 1.3.

Test Results

Design
8.5
Design
Style
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 (see our recommendations for the best soundbars). 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.

Design
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"

Design
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.

Design
Borders
Borders 0.61" (1.6 cm)

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

Design
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.

7.5
Design
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.

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

Update 09/21/2018: We've 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.

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.

0
Picture Quality
Local Dimming
Local Dimming
No
Backlight
Direct

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

5.9
Picture Quality
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.

5.5
Picture Quality
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
Picture Quality
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
Picture Quality
Viewing Angle
Color Washout
39 °
Color Shift
55 °
Brightness Loss
40 °
Black Level Raise
70 °
Gamma Shift
49 °

Update 09/21/2018: We've 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.

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

5.5
Picture Quality
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.

7.2
Picture Quality
Reflections
Screen Finish
Semi-gloss
Total Reflections
5.6 %
Indirect Reflections
0.4 %
Calculated Direct Reflections
5.2 %

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
Picture Quality
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.

8.9
Picture Quality
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
Picture Quality
480p Input

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

8.0
Picture Quality
720p Input

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

9.0
Picture Quality
1080p Input

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

10
Picture Quality
4k Input

Native 4k input is displayed without any issues.

0
Picture Quality
8k Input
Picture Quality
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.

6.9
Picture Quality
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
Picture Quality
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
Picture Quality
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
Picture Quality
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
Picture Quality
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.

Motion
7.2
Motion
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
Motion
Flicker-Free
Flicker-Free
Yes
PWM Dimming Frequency
0 Hz

Update 07/23/2020: Following our current testing methodology, the backlight is now considered flicker-free. The small amount of flicker measured is simply noise.

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
Motion
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

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

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.

Motion
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
Motion
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
Motion
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
Motion
Variable Refresh Rate
Native Refresh Rate
60 Hz
Variable Refresh Rate
No
HDMI Forum VRR
No
FreeSync
No
G-SYNC Compatible
No
4k VRR Maximum
N/A
4k VRR Minimum
No VRR support
1080p VRR Maximum
N/A
1080p VRR Minimum
No VRR support
1440p VRR Maximum
N/A
1440p VRR Minimum
No VRR support
VRR Supported Connectors
No VRR support

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

Inputs
6.5
Inputs
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
Inputs
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.

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