Reviewed on Aug 14, 2015

Sony X900C TV REVIEW

Usage Ratings - Version 1.0
7.4
Mixed Usage
Value for price beaten by
: Not at the latest test bench
7.0
Movies
7.5
TV Shows
7.5
Sports
7.9
Video Games
7.6
HDR Movies
6.3
HDR Gaming
7.9
PC Monitor
This TV was replaced by the Sony X900E

Type : LED
Resolution : 4k
Refresh Rate : 120 Hz

The Sony X900C 4k LED TV is very thin and has good color accuracy at an angle. However, the blacks are poor and not uniform, which means it is not a great choice in a dark room.

Test Results
Design 8.5
Picture Quality 7.2
Motion 8.8
Inputs 7.0
Sound Quality 7.4
Smart Features 8.0
Pros
  • Good color accuracy at an angle
  • Great design and very thin
  • Wider color gamut
Cons
  • Poor blacks
  • Poor uniformity

Check Price

8.5

Design

Curved : No

The top half of the Sony X900C is extremely thin (only 0.5 cm / 0.20"). The bottom half is thicker, but still relatively thin compared to other TVs. It will look great in any room.

The 55" version (XBR-55X900C) almost didn't fit on our testing table. It is the widest stand that we have tested this year so far. If you don't have a wide table, and you don't want to mount the TV on your wall, you might consider buying a third party stand (VESA compatible) like this one to replace the original TV stand. The stand on the 65" can be placed in the middle, solving this issue.

Stand

Dimensions of 55" TV stand: 48.5" x 10"

Borders
Borders : 0.43" (1.1 cm)

Thickness
Max Thickness : 1.5" (3.8 cm)

7.2

Picture Quality

This Sony TV isn't really great for watching movies. While it has really good motion control and 3D, it has poor contrast ratio and non-uniform blacks, so the dark movie scenes won't look great.

If you plan on mainly watching movies, the Sony X850C is a better TV for this usage.

6.1 Contrast
Native Contrast
:
1045 : 1

It has an IPS panel, so the blacks aren't good. It also suffers from IPS glow, which makes the blacks 'move' when you change position.

0 Local Dimming
Local Dimming
:
No
Backlight
:
Edge

6.5 SDR Peak Brightness
SDR Peak 2% Window
:
370 cd/m2
SDR Peak 50% Window
:
370 cd/m2

6.6 Gray Uniformity
50% Std. Dev.
:
5.052 %
50% DSE
:
0.195 %

The amount of DSE is average for an LED. The overall uniformity is very poor though, especially the corners.

6.5 Viewing Angle
LCD Type
:
IPS
Color Shift
:
23 °
Brightness
:
35 °
Black Level
:
75 °

Due to its IPS panel, the colors retain their saturation even off-axis. The screen only gets darker.

Update 01/06/2017: We have changed the methodology of testing. Since this is an old TV which we don't have anymore, we extrapolated the results from 2016 TVs.

7.2 Black Uniformity
Native Std. Dev.
:
1.991 %

The uniformity is also sub par. The edges bleed a little bit of light. The extreme thinness of this TV means that kind of uniformity issue is to be expected.

9.0 Gradient
Color Depth
:
10 Bit

8.6 Pre Calibration
White Balance dE
:
2.12
Color dE
:
2.7624
Gamma
:
2.19

9.4 Post Calibration
White Balance dE
:
0.28
Color dE
:
2.0600
Gamma
:
2.2

8.0 480p Input

DVDs looks great once upscaled. If you watch a low-quality video and find the picture too grainy, turn on 'Digital noise reduction'.

8.0 720p Input

Cable TV also looks good once upscaled.

9.0 1080p Input

Blu-rays looks very good when played on the Sony X900C.

10 4k Input

Native 4k content looks sharp and crisp.

7.8 Color Gamut
Wide Color Gamut
:
Yes
DCI P3 xy
:
86.26 %
DCI P3 uv
:
91.93 %
Rec 2020 xy
:
62.75 %
Rec 2020 uv
:
70.35 %

Set 'Color Space' to 'BT.2020' if you want a wider range of colors.

7.0 Reflections
Reflection
:
1.9 %
Screen Finish
:
Semi-gloss

The semi-gloss screen reflects more light than normal. Also, there is a rainbow effect around direct reflections.
It does get very bright though, when you set 'Brightness' to the max.

10 3D
3D
:
Yes
3D Type
:
Passive

The Sony X900C has passive 3D, which is great if you don't like the flickering of shutter 3D. Also, contrary to passive 1080p TVs, it can display the full 1080 lines of 3D Blu-rays. Note that if you sit too close, you will see a little bit of crosstalk on the sides of the screen.

Pixels
8.8

Motion

It is a good TV for watching sports, but not exceptional.

The motion handling is great, and there is very little blur. However, the darker corners and a few darker spots are noticeable when watching sports with uniform fields.

8.4 Motion Blur
Response Time
:
14.8 ms
Overshoot
:
0.4 ms

The 14.8ms reponse time is good for motion. By default, the screen is flicker free at all luminosities, but you can add the flickering if you want via the 'Motionflow' setting.

10 Image Flicker
PWM Dimming Frequency
:
0 Hz
BFI
:
Yes
BFI Frequency
:
60 Hz
BFI In Game Mode
:
Yes

10 24p Playback
Judder-free 24p
:
Yes
Judder-free 24p via 60p
:
Yes
Judder-free 24p via 60i
:
Yes

Sony TVs have excellent motion control. Set 'Motionflow' to 'True Cinema' and 'CineMotion' to 'High' to remove all the judder without introducing the soap opera effect.

10 Motion Interpolation
Motion Interpolation (30 fps)
:
Yes
Motion Interpolation (60 fps)
:
Yes

7.0

Inputs

It is a great gaming TV. It has little motion blur and the screen is responsive. You won't notice any delay between your action and seeing it onscreen (as long as you are under game or graphics mode).

6.5 Input Lag
1080p @ 60Hz
:
35.1 ms
1080p With Interpolation
:
69.7 ms
1080p @ 60Hz Outside Game Mode
:
72.5 ms
1080p @ 60Hz @ 4:4:4
:
35.1 ms
4k @ 60Hz
:
65.2 ms
4k @ 60Hz @ 4:4:4
:
65.2 ms
4k @ 60Hz + HDR
:
100.6 ms
4k @ 60Hz @ 4:4:4 + 8 bit HDR
:
100.6 ms

In game or graphics mode, the 1080p input lag of the Sony X900C is 35.1ms, which is about the same as other 2015 Sony TVs. It is playable when using the motion interpolation feature.

Update 09/14/2016: When sending an HDR signal at an 1080p resolution, the input lag is 70.2ms.

Unfortunately, when an HDR signal is detected, the picture mode is automatically set to 'HDR Video' mode and cannot be change to game mode to have a lower input lag.

10 Supported Resolutions
1080p @ 60Hz @ 4:4:4
:
Yes
1080p @ 120Hz
:
Yes
4k @ 30Hz @ 4:4:4
:
Yes
4k @ 60Hz
:
Yes
4k @ 60Hz @ 4:4:4
:
Yes

It is good for an overall PC monitor. Use game or graphics mode if you want chroma 4:4:4 or 1080p@120Hz.
As with other Sony TVs, little artifacts (flashing lines) are seen when a 1080p @ 120Hz signal is being displayed.

Update: With the new firmware update PKG2.463.0010NAB, This TV now supports 4k @ 60Hz @ 4:4:4. To enable this, go to Settings - External Inputs - HDMI Signal Format - Enhanced (new).

Side Inputs
Rear Inputs
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 : 2 (shared)
Tuner (Cable/Ant) : 1
Ethernet : 1
DisplayPort : 0
IR In : 1
SD/SDHC : 0

Inputs Specifications
HDR10
:
Yes
Dolby Vision
:
No
5.1 Passthrough ARC Dolby Digital
:
Yes
5.1 Passthrough ARC DTS
:
Yes
5.1 Passthrough Optical Dolby Digital
:
Yes
5.1 Passthrough Optical DTS
:
Yes
HDMI 2.0 Full Bandwidth : Yes
ARC : Yes (HDMI 4)
USB 3 : Yes (1)
HDCP 2.2 : Yes (HDMI 1,2,5)
CEC : Yes
MHL : Yes (HDMI 2)
Variable Analog Audio Out : Yes

7.4

Sound Quality

Overall, the sound is surprisingly good for a TV. It doesn't have much bass, but it can get pretty loud without too much distortion.

Note: Sound Quality test for TVs reviewed before 2017 was performed at 75dB, 85dB, and Max SPL. Starting 2017, the target SPL levels have been changed to 70dB, 80dB, and Max dB SPL.

7.7 Frequency Response
Std. Dev. @ 70
:
3.35 dB SPL
Std. Dev. @ 80
:
3.54 dB SPL
Std. Dev. @ Max
:
5.00 dB SPL
Max
:
95.3 dB SPL
Low-end Cutoff
:
95 Hz

The TV gets plenty loud and has a decent low-end extension. The frequency response is OK up to moderate volumes. At maximum loudness the frequency response suffers a little bit, but it's still relatively consistent with lower volumes.

6.8 Total Harmonic Distortion
Distortion @ 70
:
0.001
Distortion @ 80
:
0.023
Distortion @ Max
:
0.180

Minimal distortion at lower volumes, with a significant increase in distortion under maximum load, which seems to be characteristic of Sony TVs.

8.0

Smart Features

Smart OS : Android

The Android TV OS is good overall, and it is constantly improving.

It loses a few points, though, because the included smart remote isn't very good (at least not as good as Samsung's or LG's), so browsing apps or the web is a bit harder.

See our full review of Sony's smart features.

10 Ads
Ad-free
:
Yes
Opt-out
:
N/A

Remote
Remote : Smart

Misc
Power Consumption : 75 W
Power Consumption (Max) : 201 W
Firmware : PKG2.287.0010NAB

7.4 Mixed Usage

If you can get past its poor blacks and uniformity, the Sony X900C is a good 4k TV that will look great in your living room. It maintains good color accuracy at an angle, has decent sound, and handles motion well.

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