- Table of Contents
- Intro
- Design
- Picture Quality
- Motion
- Inputs
- Sound Quality
- Smart Features
- Sizes and Variants
- Compared
- Conclusion
- Discussions
Reviewed on Mar 03, 2017
By Daniel O'Keeffe
, Ian Cumming, Eric Bousquet, Mehdi Azzabi
LeEco Super4
TV REVIEW
Sub-Type
:
VA
What it is:
Type of display technology used by the TV.
When it matters:
Different technologies have different performance and are suited to different uses
Good value:
IPS maintains good color accuracy at an angle, but has a poor contrast ratio from in front. VA has great picture quality in front, but loses saturation at an angle. OLED maintains good color accuracy at an angle without any of the other issues seen with IPS and VA, as they keep good brightness and contrast at an angle.
The LeEco Super4 is a 4k LED TV. It has above average picture quality and will be best suited in a darker environment. Unfortunately, the picture quality degrades when viewed from a slight angle. On the upside, both motion and input lag will suit most people's needs and the aluminium frame has great build quality. It is also known by the model codes L434UCNN, L554UCNN and L654UCNN depending on the size.
Test Results
| Design | 8.5 |
| Picture Quality | 7.4 |
| Motion | 6.2 |
| Inputs | 7.0 |
| Sound Quality | 6.5 |
| Smart Features | 7.7 |
- Excellent contrast ratio
- Fully featured and snappy smart platform
- Very narrow viewing angle
- Peak brightness is below average
Update 3/12/2018:
Converted to Test Bench 1.2. Learn more about our versioned test bench system here.
Update 8/10/2017: Converted to Test Bench 1.1. Learn more about our new versioned test bench system here.
Update 8/10/2017: Converted to Test Bench 1.1. Learn more about our new versioned test bench system here.
Check Price
Design
Score components:
Subjectively assigned
Score distribution:
The design of the Super4 is great, and the TV feels high quality. The wide stand provides good support but requires a very wide table. The build quality is great, and the aluminium frame is nice.
Maximum Temperature
:
115 °F (46 °C)
What it is:
The peak temperature found on the TV.
When it matters:
If the TV is placed in an enclosed space.
Good value:
<35°C
Noticeable difference:
5°C
Average Temperature
:
97 °F (36 °C)
What it is:
The average temperature measured on the TV.
When it matters:
If the TV is placed in an enclosed space.
Good value:
<35°C
Noticeable difference:
5°C
The bottom of the TV gets noticeably warm to the touch after it has been on a long time, however this shouldn't be a problem during normal use. The backlight appears to be edge lit from the bottom as that is where it is hottest. The bottom is lined with vents to help keep it cool.
Picture Quality
Score components:
- 11% Contrast
- 6% Local Dimming
- 6% SDR Peak Brightness
- 6% HDR Peak Brightness
- 6% Gray Uniformity
- 7% Viewing Angle
- 4% Black Uniformity
- 6% Reflections
- 4% Pre Calibration
- 1% Post Calibration
- 6% 480p Input
- 9% 720p Input
- 11% 1080p Input
- 5% 4k Input
- 4% Color Gamut
- 4% Color Volume
- 2% Gradient
- 1% Temporary Image Retention
- 1% Permanent Burn-In Risk
Score distribution:
The LeEco Super4 LED TV has an overall average picture quality. The high contrast ratio and the good black uniformity provide good dark room performance, but when set in a very bright room, the average SDR peak brightness will limit the amount of glare the TV can handle. The Super4 won't be the best choice if you have a wide seating area since the viewing angle is terrible. It won't be the best option for sports fans too since the gray uniformity is below average and dirty screen effect is present, even if it can handle fast motion without too much motion blur. The lack of local dimming and the low HDR peak brightness really hurt the HDR performance of this TV, even though it can display a wide color gamut and 10-bit content without banding.
9.3
Contrast
What it is:
Brightness difference between white and black. This is the main component of picture quality.
When it matters:
Always, but especially when watching dark scenes.
Score components:
Score distribution:
Native Contrast
:
6693 : 1
What it is:
Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with a white target of 100 cd/m².
When it matters:
Dark scenes in a dark room.
Good value:
> 3,000
Noticeable difference:
500
Score distribution:
Contrast with local dimming
:
N/A
What it is:
Ratio of the white brightness divided by the blacks measured on our checkerboard test pattern with local dimming turned on (maximum) with a white target of 100 cd/m².
When it matters:
Dark scenes in a dark room.
Good value:
> 3,000
Noticeable difference:
500
Score distribution:
The contrast ratio is excellent for this LeEco TV. When set to our calibration goal of 100 cd/m², blacks are very deep and will provide a good movie experience, especially when placed in a dark room.
0
Local Dimming
What it is:
The lights behind the LCD layer adapt to the picture displayed, improving the contrast ratio.
When it matters:
Dark scenes viewed in a dark room.
Score components:
Subjectively assigned
Score distribution:
Local Dimming
:
No
What it is:
Whether it has a feature that controls the LEDs behind the LCD layer, to match the picture and darkens the dark portion of it.
When it matters:
On LED TVs only. Dark scenes viewed in a dark room.
Backlight
:
Edge
What it is:
Configuration of the lights of the backlight.
When it matters:
Effectiveness of the local dimming.
Good value:
Full-array/direct lighting is better for local dimming. As for the uniformity of the screen, it depends on the implementation. Some edge-lit TVs have more uniform blacks than some full-array TVs.
There is no local dimming feature on the LeEco Super4 TV. The video is for reference only.
7.4
SDR Peak Brightness
What it is:
How bright the screen can get. Measured with local dimming and with SDR content.
When it matters:
Bright living rooms; bright objects; SDR content.
Score components:
- 64% SDR Real Scene Peak Brightness
- 5% SDR Peak 2% Window
- 5% SDR Peak 10% Window
- 5% SDR Peak 25% Window
- 5% SDR Peak 50% Window
- 5% SDR Peak 100% Window
- 2% SDR Sustained 2% Window
- 2% SDR Sustained 10% Window
- 2% SDR Sustained 25% Window
- 2% SDR Sustained 50% Window
- 2% SDR Sustained 100% Window
- 1% SDR ABL
Score distribution:
SDR Real Scene Peak Brightness
:
279 cd/m²
What it is:
The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. Our Real Scene was selected to represent a more regular movie condition. All measurements are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming on, max backlight and with an SDR signal. Scene: here.
When it matters:
When watching movies and TV shows in SDR.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Peak 2% Window
:
316 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
Bright highlights, present on screen for a short time
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Peak 10% Window
:
314 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
Bright objects, present on screen for a short time
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Peak 25% Window
:
308 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
When watching in a bright room.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Peak 50% Window
:
312 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
When watching in a bright room.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Peak 100% Window
:
310 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
When watching in a bright room.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Sustained 2% Window
:
312 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
Bright highlights, persistent during a scene.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Sustained 10% Window
:
305 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
Bright objects, persistent during a scene.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Sustained 25% Window
:
307 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
When watching in a bright room.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Sustained 50% Window
:
307 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
When watching in a bright room.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR Sustained 100% Window
:
304 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over SDR signal.
When it matters:
When watching in a bright room.
Good value:
> 300 cd/m²
Noticeable difference:
30 cd/m²
Score distribution:
SDR ABL
:
0.002
What it is:
The coefficient of variation of the SDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters:
Content with large bright areas, such as for PC or video game use, and sports such as hockey
Good value:
<0.07
Noticeable difference:
0.01
Score distribution:
Decent SDR peak brightness. The TV remains a constant ~300 cd/m² regardless of the content shown, which is good. This is bright enough for a moderately lit room, but in a bright room the TV may appear too dim.
6.1
HDR Peak Brightness
What it is:
How bright the screen can get. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright living rooms; bright objects; HDR content.
Score components:
- 63% HDR Real Scene Peak Brightness
- 5% HDR Peak 2% Window
- 5% HDR Peak 10% Window
- 5% HDR Peak 25% Window
- 5% HDR Peak 50% Window
- 5% HDR Peak 100% Window
- 2% HDR Sustained 2% Window
- 2% HDR Sustained 10% Window
- 2% HDR Sustained 25% Window
- 2% HDR Sustained 50% Window
- 2% HDR Sustained 100% Window
- 2% HDR ABL
Score distribution:
HDR Real Scene Peak Brightness
:
284 cd/m²
What it is:
The maximum luminosity the TV can obtain while playing a movie or while watching a TV show. This scene was selected to represent a more realistic movie condition. All measurement are made with the TV set to be as bright as possible, but with a 6500k white. Measured with local dimming, max backlight and over HDR signal. Scene: here.
When it matters:
When watching movies or watching TV show in HDR.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Peak 2% Window
:
331 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright highlights, present on screen for a short time; especially for HDR content.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Peak 10% Window
:
329 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright objects, present on screen for a short time; especially for HDR content.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Peak 25% Window
:
328 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright rooms; bright objects in HDR video.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Peak 50% Window
:
329 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright rooms.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Peak 100% Window
:
330 cd/m²
What it is:
The maximum luminosity, even if only maintained for a short time, of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright rooms.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Sustained 2% Window
:
331 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 2% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright highlights, persistent throughout a scene; especially for HDR content.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Sustained 10% Window
:
329 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 10% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright objects, persistent throughout a scene; especially for HDR content.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Sustained 25% Window
:
328 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 25% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright rooms; bright objects in HDR video.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Sustained 50% Window
:
329 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 50% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright rooms.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR Sustained 100% Window
:
330 cd/m²
What it is:
The lowest maximum luminosity (usually after it has stabilized) of a white square covering 100% of the screen, with the TV set to be as bright as possible. Measured with local dimming and over HDR signal (if supported).
When it matters:
Bright rooms.
Good value:
> 550 cd/m²
Noticeable difference:
80 cd/m²
Score distribution:
HDR ABL
:
0.001
What it is:
The coefficient of variation of the HDR sustained brightness, after linearizing for noticeable differences in luminosity
When it matters:
HDR content with large bright areas, such as HDR gaming
Good value:
<0.07
Noticeable difference:
0.01
Score distribution:
Mediocre HDR peak brightness. While the measurements are nearly identical to the SDR brightness, HDR content features 1000-4000 cd/m² highlights, so a brighter TV is required to get the best experience. While this TV can't come close to producing the full brightness of those highlights, most of the scene in HDR content is below 200 cd/m², so the brightness of this TV is still passable for watching HDR.
6.7
Gray Uniformity
What it is:
Evenness of colors onscreen (not just gray).
When it matters:
Solid colors. Sports, panning shots.
Score components:
- 40% 50% Std. Dev.
- 40% 50% DSE
- 10% 5% Std. Dev.
- 10% 5% DSE
Score distribution:
50% Std. Dev.
:
2.568 %
What it is:
Average squared difference of pixels when displaying a mid 50% gray.
When it matters:
Solid colors. Sports, panning shots.
Good value:
< 2.5%
Noticeable difference:
1%
Score distribution:
50% DSE
:
0.212 %
What it is:
Dirty Screen Effect. High-frequency variance of uniformity. Dark spots on the screen.
When it matters:
Solid colors. Sports, panning shots.
Good value:
< 0.165%
Noticeable difference:
0.025%
Score distribution:
5% Std. Dev.
:
2.703 %
What it is:
Average squared difference of pixels when displaying a mid 5% gray.
When it matters:
Dark scenes.
Good value:
< 1.15%
Noticeable difference:
1%
Score distribution:
5% DSE
:
0.128 %
What it is:
Dirty Screen Effect. High-frequency variance of uniformity. Dark spots on the screen.
When it matters:
Dark scenes.
Good value:
< 0.116%
Score distribution:
The gray uniformity of this LeEco is average. The top half of the screen is a bit darker than the bottom, and two large dark vertical bands also go from the top to the bottom. The bottom edge of the screen also seems a bit brighter than the rest of the TV.
On the 5% gray uniformity picture, you can see more easily that the bottom edge is brighter than the rest of the screen. You can also see that both right and left sides seem to be more bright, but this is due to the relatively narrow viewing angle of this TV.
4.1
Viewing Angle
What it is:
Color accuracy when viewed from the side.
When it matters:
Large living rooms with multiple viewing positions.
Score components:
- 20% Color Shift
- 40% Brightness
- 40% Black Level
Score distribution:
Color Shift
:
16 °
What it is:
Angle where the colors noticeable shift compared to when viewed from directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters:
Large living rooms with multiple viewing positions.
Good value:
> 50°
Noticeable difference:
10°
Score distribution:
Brightness
:
32 °
What it is:
Angle where the brightness drops to 50% of the brightness directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters:
Large living rooms with multiple viewing positions.
Good value:
> 50°
Noticeable difference:
10°
Score distribution:
Black Level
:
8 °
What it is:
Angle where the black level drops to 50% of the black level directly in front of the TV. 0 ° means directly facing the TV. Measurements are up to a maximum of 75 °.
When it matters:
Large living rooms with multiple viewing positions.
Good value:
> 50°
Noticeable difference:
10°
Score distribution:
The viewing angle of the Super4 is bad. Its picture quality worsens rapidly at an angle, even for a VA TV. Blacks become grayer and colors change after only a small angle, although the brightness change is not as bad.
7.1
Black Uniformity
What it is:
Evenness of blacks.
When it matters:
Dark scenes viewed in a dark room.
Score components:
- 75% Native Std. Dev.
- 25% Std. Dev. w/ L.D.
Score distribution:
Native Std. Dev.
:
1.243 %
What it is:
Average of the squared difference of the blacks.
When it matters:
Dark scenes viewed in a dark room.
Good value:
< 1%
Noticeable difference:
1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
Score distribution:
Std. Dev. w/ L.D.
:
N/A
What it is:
Average of the squared difference of the blacks with Local Dimming enabled
When it matters:
Dark scenes viewed in a dark room.
Good value:
< 1%
Noticeable difference:
1%, but keep in mind that it varies a lot by unit, even of the same model; yours likely will not end up exactly like ours.
Score distribution:
The black uniformity of this LeEco TV is ordinary. Some clouding can be seen in the bottom of the screen where the edge backlight is situated, but this is mostly visible while displaying our black uniformity test pattern. When watching regular TV content, almost no clouding can be seen.
7.9
Reflections
What it is:
How much light is reflected by the TV.
When it matters:
Bright rooms.
Score components:
Score distribution:
Screen Finish
:
Semi-gloss
What it is:
Type of coating on the screen.
When it matters:
Bright objects in the direct reflection path (for example, opposite the TV).
Good value:
Glossy is good for ambient light, but not for direct reflections.
Total Reflections
:
5.1 %
What it is:
The amount of light which is reflected off the screen, in all directions.
When it matters:
When watching TV in a bright room, with lamps, windows or walls which reflect directly off the screen.
Good value:
4.5 %
Noticeable difference:
0.5 %
Score distribution:
Indirect Reflections
:
0.6 %
What it is:
The amount of light reflected off the screen, ignoring direct (mirror-like) reflections
When it matters:
Watching TV in a bright room, without sunlight or lamps directed at the TV
Good value:
1.0 %
Noticeable difference:
0.5 %
Score distribution:
The TV is quite good at handling reflections. For an average room it works well, but for a very bright living room it may be an issue. It has a semi-gloss finish which works to diffuse light directly on the screen.
8.0
Pre Calibration
What it is:
TV's color accuracy before a full calibration. Only the picture mode, color temperature, and backlight level were changed.
When it matters:
All video on an uncalibrated TV. This represents most people's use cases.
Score components:
- 46% White Balance dE
- 45% Color dE
- 9% Color Temperature
Score distribution:
White Balance dE
:
3.30
What it is:
Average inaccuracy of shades of gray.
When it matters:
Overall color temperature of all video.
Good value:
< 3
Noticeable difference:
1
Score distribution:
Color dE
:
2.14
What it is:
Average inaccuracy of colors.
When it matters:
All colors.
Good value:
< 3
Noticeable difference:
1
Score distribution:
Gamma
:
2.20
What it is:
Brightness of shades of gray.
When it matters:
Shadows.
Good value:
Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference:
0.1
Color Temperature
:
6418 K
What it is:
The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color temperature use in the TV and film industry as program, film, and photography directors usually work on monitors calibrated on the 6500k color temperature and do their color correction base on what they see on those monitors.
When it matters:
To get the most accurate picture when watching TV shows, movies or video games. This is particularly for skin tones.
Good value:
6500K
Noticeable difference:
400K
Score distribution:
The pre-calibration color accuracy is good on this LeEco TV. The white balance is a bit high, though, but not as bad as seen on other budget TV. The gamma is not flat, but it still has an overall value of 2.2, which is still good. Finally, the color reproduction out of the box is not bad, and overall, for most people, this TV could be used as is, out of the box when set to the right picture mode.
9.4
Post Calibration
What it is:
TV's color accuracy after a full calibration with a spectrophotometer.
When it matters:
All video on a TV that has been professionally calibrated. This isn't that useful, because most TVs can achieve a pretty good calibration if you spend enough time on them.
Score components:
- 46% White Balance dE
- 45% Color dE
- 9% Color Temperature
Score distribution:
Picture Mode
:
Movie
What it is:
The picture mode used to do the calibration. We usually go for the picture mode that gives us the more control over all the picture quality setting.
White Balance dE
:
0.19
What it is:
Average inaccuracy of shades of gray.
When it matters:
Overall color temperature of all videos.
Good value:
< 3
Noticeable difference:
1
Score distribution:
Color dE
:
1.52
What it is:
Average inaccuracy of colors.
When it matters:
All colors.
Good value:
< 3
Noticeable difference:
1
Score distribution:
Gamma
:
2.20
What it is:
Brightness of shades of gray.
When it matters:
Shadows.
Good value:
Between 2.1 and 2.3 (our target is 2.2)
Noticeable difference:
0.1
Color Temperature
:
6503 K
What it is:
The color temperature is a measure of the color of light. A colder color temperature (7000K) will look bluer and a warmer color temperature (4000K) will look yellower/redder. 6500K is the standard color temperature use in the TV and film industry as program, film, and photography directors usually work on monitors calibrated on the 6500k color temperature and do their color correction base on what they see on those monitors.
When it matters:
To get the most accurate picture when watching TV shows, movies or video games. This is particularly for skin tones.
Good value:
6500K
Noticeable difference:
400K
Score distribution:
The post-calibration color accuracy is excellent, and the calibration process was fast and easy to do. The TV as a 2 points and 10 points white balance calibration. Both were responsive and provided good enough control to make it a simple process. Even though it does not have a more advanced 'Color Management Systems', we ended up with a pretty accurate calibration.
You can see our recommended settings here.
8.1
Color Gamut
What it is:
How many colors the TV can display.
When it matters:
HDR content. Includes some streaming videos and UHD Blu-rays.
Score components:
- 25% DCI P3 xy
- 25% DCI P3 uv
- 25% Rec 2020 xy
- 25% Rec 2020 uv
Score distribution:
Wide Color Gamut
:
Yes
What it is:
Whether the TV has an option to enable wide color gamuts.
When it matters:
HDR content. Includes some streaming videos and UHD Blu-rays.
DCI P3 xy
:
88.08 %
What it is:
Coverage of the DCI P3 colorspace on CIE 1931 xy.
When it matters:
DCI P3 content. Includes HDR, UHD Blu-rays.
Good value:
> 90%
Noticeable difference:
5%
Score distribution:
DCI P3 uv
:
93.41 %
What it is:
Coverage of the DCI P3 colorspace on CIE 1976 u' v'.
When it matters:
DCI P3 content. Includes HDR, UHD Blu-rays.
Good value:
> 90%
Noticeable difference:
5%
Score distribution:
Rec 2020 xy
:
65.87 %
What it is:
Coverage of the Rec.2020 colorspace on CIE 1931 xy.
When it matters:
Rec.2020 content. Includes HDR, UHD Blu-rays.
Good value:
> 90%
Noticeable difference:
5%
Score distribution:
Rec 2020 uv
:
75.13 %
What it is:
Coverage of the Rec.2020 colorspace on CIE 1976 u' v'.
When it matters:
Rec.2020 content. Includes HDR, UHD Blu-rays.
Good value:
> 90%
Noticeable difference:
5%
Score distribution:
The Super4 can display a wide color gamut, so deep colors in HDR content will be shown properly. However there is a problem with the tone mapping of very bright highly saturated colors, they sometimes clip and become a totally different color. This is shown in this color gamut test done at a higher brightness, the extreme blue point turns orange. Because of this we performed the color gamut testing at a less bright stimulus value of 70 rather than our usual 75, though this should not affect the scores very much relative to other TVs.
Update 05/08/2017: The color gamut has been remeasured with the newest firmware update. The tone mapping has changed slightly (and the clipping error still exists) but the results remain about the same.
7.0
Color Volume
What it is:
How many colors a TV can display at different luminosity levels.
When it matters:
HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Score components:
Score distribution:
Normalized DCI P3 Coverage ITP
:
78.5 %
What it is:
How much of the DCI-P3 colorspace a TV can display at different luminosity levels
When it matters:
HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Good value:
80%
Noticeable difference:
5%
Score distribution:
10,000 cd/m² DCI P3 Coverage ITP
:
32.7 %
What it is:
How much of the DCI-P3 colorspace a TV can display at different luminosity levels when compared to an ideal 10,000 nit TV
When it matters:
HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Normalized Rec 2020 Coverage ITP
:
60.8 %
What it is:
How much of the Rec. 2020 colorspace a TV can display at different luminosity levels
When it matters:
HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
Good value:
80 %
Noticeable difference:
5 %
Score distribution:
10,000 cd/m² Rec 2020 Coverage ITP
:
25.2 %
What it is:
How much of the Rec 2020 colorspace a TV can display at different luminosity levels when compared to an ideal 10,000 nit TV
When it matters:
HDR content. Includes some streaming videos, UHD Blu-rays and HDR games.
This TV has a decent DCI P3 color volume, so HDR colors will be properly represented at various brightness levels. The TV's high contrast ratio allows it to show very dark colors better than most TVs. However this TV has poor Rec 2020 color volume so HDR content that uses the Rec 2020 color space will not have accurate deep color.
Update 05/08/2017: The Super4 has been tested with the newest firmware update and the color volume remains about the same.
7.8
Gradient
What it is:
How finely levels of color can be displayed.
When it matters:
Details in shadows, sky and skin tones. Matters more for HDR content.
Score components:
- 25% Red (Std. Dev.)
- 25% Green (Std. Dev.)
- 25% Blue (Std. Dev.)
- 25% Gray (Std. Dev.)
Score distribution:
Color Depth
:
10 Bit
What it is:
Number of bits per pixel to represent a specific color. Note: we consider 8-bit with dithering to be equivalent to 10-bit, as long as the 10-bit gradient looks smooth.
When it matters:
HDR content like UHD Blu-ray players. Won't matter for cable TV, regular Blu-ray movies, video game consoles or content displayed from a Windows PC. Those are limited to 8-bit color.
Good value:
10-bit.
Noticeable difference:
1 bit.
Red (Std. Dev.)
:
0.093 dE
What it is:
The standard deviation of the color differences (dE) between subsequent 10 bit red shades.
When it matters:
Details in skin tones, sunsets, and other reddish objects. Matters more for HDR content.
Good value:
< 0.12 dE
Noticeable difference:
0.01 dE
Score distribution:
Green (Std. Dev.)
:
0.125 dE
What it is:
The standard deviation of the color differences (dE) between subsequent 10 bit green shades.
When it matters:
Details in ocean shades and other greenish objects. Matters more for HDR content.
Good value:
< 0.12 dE
Noticeable difference:
0.01 dE
Score distribution:
Blue (Std. Dev.)
:
0.095 dE
What it is:
The standard deviation of the color differences (dE) between subsequent 10 bit blue shades.
When it matters:
Details in skies, water and other blueish objects. Matters more for HDR content.
Good value:
< 0.12 dE
Noticeable difference:
0.01 dE
Score distribution:
Gray (Std. Dev.)
:
0.155 dE
What it is:
The standard deviation of the color differences (dE) between subsequent 10 bit gray shades.
When it matters:
Details in dull colors, such as shadows, glow and urban scenes. Matters more for HDR content.
Good value:
< 0.12 dE
Noticeable difference:
0.01 dE
Score distribution:
Overall, the Super4 TV can display our gradient test pattern pretty smoothly. There are only some imperfections in the dark greens and in the darker grayscale portion, which is not bad.
10
Temporary Image Retention
What it is:
How much a static image is retained on a TV screen after a certain amount of time.
When it matters:
When watching TV show, playing video games or when using your TV as a PC monitor.
Score components:
Score distribution:
IR after 0 min recovery
:
0.00 %
What it is:
Image retention measured right after the static image exposure, without recovery time.
When it matters:
When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value:
0 is perfect.
Noticeable difference:
0.015%
Score distribution:
IR after 2 min recovery
:
0.00 %
What it is:
Image retention measured after a recovery time of 2 minutes.
When it matters:
When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value:
0 is perfect
Noticeable difference:
0.015%
Score distribution:
IR after 4 min recovery
:
0.00 %
What it is:
Image retention measured after a recovery time of 4 minutes.
When it matters:
When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value:
0 is perfect.
Noticeable difference:
0.015%
Score distribution:
IR after 6 min recovery
:
0.00 %
What it is:
Image retention measured after a recovery time of 6 minutes.
When it matters:
When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value:
0 is perfect.
Noticeable difference:
0.015%
Score distribution:
IR after 8 min recovery
:
0.00 %
What it is:
Image retention measured after a recovery time of 8 minutes.
When it matters:
When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value:
0 is perfect.
Noticeable difference:
0.015%
Score distribution:
IR after 10 min recovery
:
0.00 %
What it is:
Image retention measured after a recovery time of 10 minutes.
When it matters:
When changing channels while watching TV, right after changing the type of content (i.e. stopping playing video game to watch a movie) or changing input.
Good value:
0 is perfect.
Noticeable difference:
0.015%
Score distribution:
This TV does not present any image retention at all. Even right after the 10 minutes burn-in scene, no remnant of the static logo could be seen. This is in line with other VA TVs, which are usually retention-free.
10
Permanent Burn-In Risk
What it is:
The risk of developing a persistent image retention, also known as burn-in, after being exposed to a static image for a prolonged time
When it matters:
When watching TV shows, playing video games or when using your TV as a PC monitor where static content is present
Score components:
Score distribution:
Permanent Burn-In Risk
:
No
What it is:
If the TV faces a risk of developing permanent burn-in after being expose, for a long period of time, to static images.
When it matters:
When watching TV shows with static logos or banners (news or sports channels), when playing video games with a HUD (head up display), and when using a TV as a PC monitors.
We don't expect VA panels to experience permanent image retention, as the VA panel in our long-term test appears immune.
Motion
Score components:
- 53% Response Time
- 11% Flicker-Free
- 3% Black Frame Insertion (BFI)
- 5% Motion Interpolation
- 12% Stutter
- 11% 24p Judder
- 5% Variable Refresh Rate
Score distribution:
The motion handling of the Super4 is passable. Fast movement appears quite good due to the fast response time, but the TV doesn't have any options to modify the backlight flicker pattern, and can't play movies without judder. This is not an issue for most people as it generally isn't noticeable. The TV has a 60Hz panel which can interpolate lower frame rate content.
8.0
Response Time
What it is:
Amount of blur in fast motion.
When it matters:
Sports, video games.
Score components:
- 50% 80% Response Time
- 50% 100% Response Time
Score distribution:
80% Response Time
:
6.3 ms
What it is:
How quickly pixels can reach 80% of a full transition from one color to another.
When it matters:
Fast movement.
Good value:
< 8 ms
Noticeable difference:
4 ms
Score distribution:
100% Response Time
:
17.4 ms
What it is:
How quickly pixels can fully transition from one color to another.
When it matters:
Fast movement.
Good value:
< 20 ms
Noticeable difference:
10 ms
Score distribution:
Motion blur is great. The response time is quick, resulting in only a short trail following moving objects. Transitions to the 20% level take longer than the other transitions, but this is unlikely to be an issue.
4.7
Flicker-Free
What it is:
How noticeable flicker is on the screen, when all optional flicker has been disabled.
When it matters:
All usages, but particularly when viewing fast motion (such as in sports and video games) or when using the TV as a PC monitor.
Score components:
Score distribution:
Flicker-Free
:
No
What it is:
Whether the screen will be perceived as having no flicker during normal viewing conditions.
When it matters:
When flicker is especially bothersome, such as when using the TV as a PC monitor.
Good value:
Yes
PWM Dimming Frequency
:
180 Hz
What it is:
The flicker frequency of the screen, when all optional flicker has been disabled.
When it matters:
All usages, but particularly when viewing fast motion (such as in sports and video games) or when using the TV as a PC monitor.
Good value:
0 Hz or very high frequencies (> 300 Hz). Frequencies that are multiples of 60Hz are better.
Score distribution:
The Super4 uses PWM at 180Hz to dim the backlight, starting at 99/100 backlight setting. Lowering the setting shortens the duty cycle, while amplitude lowers slightly. Backlight PWM helps clear up motion slightly, but results in duplications following moving objects. We haven't seen any other TVs with a frequency of 180Hz, but it provides good performance at an even multiple of the 60Hz frame rate but high enough not to be noticeable for most people.
4.6
Black Frame Insertion (BFI)
What it is:
How effective the TV's flickering capabilities are in making motion look clearer, when flicker is desired.
When it matters:
When flicker is desired by the user. Flicker is especially useful to make motion look clearer when viewing 60 fps content (sports, video games) and when using motion interpolation.
Score components:
Score distribution:
Optional BFI
:
No
What it is:
Option to turn the screen black between frames.
When it matters:
When flicker is desired by the user. Flicker is especially useful to make motion look clearer when viewing 60 fps content (sports, video games) and when using motion interpolation.
Good value:
Yes
Min Flicker for 60 fps
:
180 Hz
What it is:
Lowest possible frequency of flickering pattern when playing 60 fps content.
When it matters:
When viewing fast motion such as sports and video games.
Good value:
60 Hz
Noticeable difference:
20 Hz
Score distribution:
60 Hz for 60 fps
:
No
What it is:
Whether the screen can flicker at 60 Hz when playing 60 fps content.
When it matters:
When playing 60 fps content, such as sports and video games.
Good value:
Yes
120 Hz for 120 fps
:
N/A
What it is:
Whether the screen can flicker at 120 Hz when playing 120 fps content.
When it matters:
When playing 120 fps content, such as when using motion interpolation on a 120 Hz TV.
Good value:
Yes
Min Flicker for 60 fps in Game Mode
:
180 Hz
What it is:
Lowest possible frequency of flickering pattern when playing 60 fps content in Game Mode.
When it matters:
When playing video games with fast motion.
Good value:
60 Hz
Noticeable difference:
20 Hz
Score distribution:
The LeEco has no options to reduce its flicker frequency, although its 180 Hz PWM backlight does help somewhat to make motion clearer.
7.0
Motion Interpolation
What it is:
Also known as 'Soap Opera Effect'. It is an optional feature that increases the frame rate of the video, smoothing movement.
When it matters:
If you like the look of smoothed video. Not everyone does.
Score components:
Score distribution:
Motion Interpolation (30 fps)
:
Yes
What it is:
Whether the TV can take a 30 fps input and heighten the frame rate to at least 60 fps.
When it matters:
30 fps or lower videos. Includes movies, TV shows, some video games.
Motion Interpolation (60 fps)
:
No
What it is:
Whether the TV can take a 60 fps input and heighten the frame rate to at least 100 fps.
When it matters:
60 fps videos. Includes some video games, some sports channels.
The Super 4 has a 60Hz panel, and can interpolate lower refresh rate content.
8.1
Stutter
What it is:
Jarring effect caused by static frame time during motion sequences
When it matters:
When watching content with long panning shots and other smooth movement
Score components:
Score distribution:
Frame Hold Time @ 24 fps
:
24.3 ms
What it is:
Time that frame is static during 24Hz videos such as movies
When it matters:
When watching movies and other low frame rate content which contain panning shots
Good value:
< 24 ms
Noticeable difference:
5 ms
Score distribution:
Frame Hold Time @ 60 fps
:
0.0 ms
What it is:
Time that frame is static during 60 fps content such as TV shows
When it matters:
When watching 60 fps content containing slow panning shots (such as field sports)
Good value:
< 24 ms
Noticeable difference:
5 ms
Score distribution:
The LeEco Super4 is great at displaying content without stutter. Although the response time is quick, it helps to blur the transition between frames to reduce stutter. It may be noticeable for movies (especially for slow panning shows) but isn't an issue for sports.
0
24p Judder
What it is:
Whether 24p content can play without any judder.
When it matters:
Only 24p content (mostly just movies).
Score components:
Score distribution:
Judder-Free 24p
:
No
What it is:
Judder-free movies over 24p signal.
When it matters:
Blu-ray and DVD movies; 24 hz PC signal.
Judder-Free 24p via 60p
:
No
What it is:
Judder-free movies over 60p signal.
When it matters:
Movies from streaming devices (Apple TV, Fire TV, etc.); 60 hz PC signal.
Judder-Free 24p via 60i
:
No
What it is:
Judder-free movies over 60i signal.
When it matters:
Movies from cable/satellite boxes.
Judder-Free 24p via Native Apps
:
No
What it is:
Judder-free movies when playing from native apps.
When it matters:
Movies from streaming native apps (Netflix, Amazon TV, etc.).
The LeEco Super4 TV is not able to display movies without judder under any of the tested frame rates, unfortunately. Movies playing from a 24p source like a Blu-rays player or a native streaming app, and from 60p sources like cable box all suffer from judder. Note that few peoples can notice judder, though, so this is more important for people that are sensitive to it.
0
Variable Refresh Rate
What it is:
How frequently the TV can refresh and show new frames, and whether it can vary its refresh rate in real time using technologies like HDMI Forum's Variable Refresh Rate.
When it matters:
Mostly for gaming, but does provide a little better motion during normal usage.
Score components:
- 25% 4k VRR Maximum
- 25% 4k VRR Minimum
- 25% 1080p VRR Maximum
- 25% 1080p VRR Minimum
Score distribution:
Native Refresh Rate
:
60 Hz
What it is:
The out-of-the-box maximum refresh rate; how frequently the TV can refresh and show new frames.
When it matters:
When playing content with a frame rate that matches the TV's refresh rate (ex. 60 fps on a 60 Hz TV, 120 fps on a 120 Hz TV), or when using the TV's motion interpolation feature (soap opera effect).
Good value:
60 Hz
Variable Refresh Rate
:
No
What it is:
Feature that allows the TV to synchronize its refresh rate with the input device's output and reduces stuttering and screen tearing.
When it matters:
Almost every usage, but is most noticeable when gaming where constant fluctuation in framerate cause distracting artifacts.
4k VRR Maximum
:
N/A
What it is:
The maximum frequency covered by the Variable Refresh Rate feature of the TV when the input signal is 4k.
When it matters:
Any time the VRR feature is enabled and 4k is sent.
Good value:
Matches maximum refresh rate at 4k.
Noticeable difference:
10 Hz
Score distribution:
4k VRR Minimum
:
N/A
What it is:
The lowest frequency covered by the TV's Variable Refresh Rate feature when the input signal is 4k.
When it matters:
When using the VRR feature of the TV at lower frame rates when sending a 4k signal.
Good value:
30 Hz
1080p VRR Maximum
:
N/A
What it is:
The maximum frequency covered by the Variable Refresh Rate feature of the TV when the input signal is 1080p.
When it matters:
Any time the VRR feature is enabled and 1080p is sent.
Good value:
Matches maximum refresh rate at 1080p.
Noticeable difference:
10 Hz
Score distribution:
1080p VRR Minimum
:
N/A
What it is:
The lowest frequency covered by the TV's Variable Refresh Rate feature when the input signal is 1080p.
When it matters:
When using the VRR feature of the TV at lower frame rates when sending a 1080p signal.
Good value:
30 Hz
VRR Supported Connectors
:
N/A
What it is:
The inputs which support a variable refresh rate (eg. HDMI, DisplayPort)
When it matters:
When gaming with different consoles or graphics cards.
The Super4 doesn't support variable refresh rate (FreeSync or G-Sync) and has a 60Hz panel.
Inputs
Score components:
- 86% Input Lag
- 14% Supported Resolutions
Score distribution:
The input lag of the Super4 is low for all resolutions in game mode which is good, however the TV cannot display chroma 4:4:4 properly which makes it a bad choice as a PC monitor.
7.9
Input Lag
What it is:
Delay between input and onscreen reaction.
When it matters:
Video games; when TV is used as PC monitor.
Score components:
- 35% 1080p @ 60Hz
- 3% 1080p @ 60Hz + HDR
- 37% 4k @ 60Hz
- 19% 4k @ 60Hz + HDR
- 3% 4k @ 60Hz @ 4:4:4
- 3% 4k @ 60Hz @ 4:4:4 + 8 bit HDR
Score distribution:
1080p @ 60Hz
:
35.3 ms
What it is:
Lowest input lag possible on TV with a 1080p @ 60Hz @ 4:2:2 input.
When it matters:
Video games and also when TV is used as PC monitor.
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
1080p @ 60Hz + HDR
:
55.4 ms
What it is:
Lowest input lag possible on the TV when displaying 1080p @ 60Hz @ 4:2:2 @ 10 bit with HDR.
When it matters:
HDR video games from a console outputting a 1080p signal.
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
1080p @ 60Hz Outside Game Mode
:
102.2 ms
What it is:
Lowest input lag possible on the TV when displaying 1080p @ 60Hz @ 4:2:2 in a fully featured picture mode.
When it matters:
For playing video games while retaining access to all features of the TV.
Good value:
< 40 ms
Noticeable difference:
15 ms
1080p @ 120Hz
:
N/A
What it is:
Lowest input lag possible on TV with a 1080p @ 120Hz input.
When it matters:
When the TV is used as PC monitor.
Good value:
< 40 ms
Noticeable difference:
15 ms
4k @ 60Hz
:
35.5 ms
What it is:
Lowest input lag possible on TV when displaying 4k @ 60Hz @ 4:2:0.
When it matters:
Video games and also when TV is used as PC monitor.
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
4k @ 60Hz + HDR
:
35.8 ms
What it is:
Lowest input lag possible when displaying 4k @ 60Hz @ 4:2:0 @ 10 bit signal with HDR.
When it matters:
HDR Video games.
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
4k @ 60Hz @ 4:4:4
:
N/A
What it is:
Lowest input lag possible on the TV when displaying 4k @ 60Hz with proper 4:4:4 chroma subsampling. The test is usually conducted with a 4k @ 60 Hz @ 4:4:4 signal, but a 4k @ 60 Hz @ Full RGB signal may be used if it's required for the TV to show proper 4:4:4 chroma subsampling.
When it matters:
PC Monitor
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
4k @ 60Hz @ 4:4:4 + 8 bit HDR
:
N/A
What it is:
Lowest input lag possible on the TV when displaying 4k @ 60Hz @ 8 bit + HDR with proper 4:4:4 chroma subsampling. The test is usually conducted with a 4k @ 60 Hz @ 4:4:4 @ 8 bit signal, but a 4k @ 60 Hz @ Full RGB @ 8 bit signal may be used if it's required for the TV to show proper 4:4:4 chroma subsampling.
When it matters:
PC Monitor with an HDR capable graphic card
Good value:
< 40 ms
Noticeable difference:
15 ms
Score distribution:
4k @ 60Hz Outside Game Mode
:
106.3 ms
What it is:
Lowest input lag possible on the TV when displaying 4k @ 60Hz @ 4:2:0 in a fully featured picture mode.
When it matters:
For playing video games while retaining access to all features of the TV.
Good value:
< 40 ms
Noticeable difference:
15 ms
4k With Interpolation
:
135.6 ms
What it is:
Lowest input lag for 4k @ 60 Hz @ 4:2:0 content when the motion interpolation feature is turned on.
When it matters:
When you want to play video games with the Soap Opera Effect enabled.
Good value:
< 40 ms
Noticeable difference:
15 ms
4k @ 120 Hz
:
N/A
What it is:
Lowest input lag possible on TV with a 4k @ 120Hz input.
When it matters:
When the TV is used as PC monitor.
Good value:
< 40 ms
Noticeable difference:
15 ms
4k with Variable Refresh Rate
:
N/A
What it is:
Lowest input lag possible on the TV when its Variable Refresh Rate feature is enabled and it is sent a 4k signal.
When it matters:
When gaming with a device which supports variable refresh rates, such as the Xbox One X or a PC.
1080p with Variable Refresh Rate
:
N/A
What it is:
Lowest input lag possible on the TV when its Variable Refresh Rate feature is enabled and it is sent a 1080p signal.
When it matters:
When gaming with a device which supports variable refresh rates, such as the Xbox One X or a PC.
When in game mode the input lag is lower than average and should be good enough for all but the most competitive gamers. All three HDMI ports have the same input lag. The input lag varies by +/- 5 ms every time the TV switches to and from the HDMI input.
Note that when the TV switches to HDR mode it retains the settings from the previous mode it was in, so when gaming in HDR be sure you are in game mode before playing HDR content as you will not be able to switch into game mode once HDR mode is activated.
1.7
Supported Resolutions
What it is:
Different resolutions supported by TV.
When it matters:
PC monitor usage.
Score components:
- 17% 1080p @ 60Hz @ 4:4:4
- 17% 1080p @ 120Hz
- 17% 1440p @ 60Hz
- 17% 4k @ 30Hz @ 4:4:4
- 16% 4k @ 60Hz
- 16% 4k @ 60Hz @ 4:4:4
Score distribution:
1080p @ 60Hz @ 4:4:4
:
No
What it is:
Crisp text on 1080p @ 60 hz signal.
When it matters:
PC productivity and 60 fps gaming.
1440p @ 60Hz
:
No
What it is:
60 fps 1440p signal supported.
When it matters:
PC productivity and gaming.
4k @ 30Hz @ 4:4:4
:
No
What it is:
Crisp text on 4k @ 30 hz signal.
When it matters:
PC productivity and gaming.
4k @ 60Hz
:
Yes
What it is:
60 fps 4k signal supported.
When it matters:
PC productivity and gaming.
4k @ 60Hz @ 4:4:4
:
No
What it is:
Crisp text on 4k @ 60 hz signal.
When it matters:
Productivity and 60 fps gaming in 4k.
Although the TV could accept 4:4:4 color as an input it did not display it properly. This test image shows how the TV was unable to show all the gaps between the lines for some color patterns. However this is only a concern when using the TV as a PC monitor while displaying text.
To play 4K @ 60 Hz the HDMI input in use needs to be set to 4K@60Hz Compatible in the TV's Input settings.
The TV also includes a PC input (VGA with 3.5mm AUX). One of the USB ports is located on the top of the TV for a webcam.
HDR10
:
Yes
What it is:
Standard HDR format.
When it matters:
Most common format. All UHD Blu-ray discs are required to have it.
Dolby Vision
:
No
What it is:
Better format, due to its dynamic nature.
When it matters:
Dolby Vision mastered content. Current available from streaming services (Netflix, Amazon Video), some Blu-Ray players, the Apple TV 4k and ChromeCast Ultra.
HLG
:
No
What it is:
HLG or Hybrid Log Gamma is a broadcast HDR format.
When it matters:
HLG capable sources such as Youtube or OTA broadcasts in specific regions. Backwards compatible with SDR TVs.
5.1 Passthrough ARC Dolby Digital
:
Yes
What it is:
TV can receive and pass Dolby Digital 5.1 signal to receiver via HDMI ARC.
When it matters:
5.1 audio on DVDs, Blu-rays and video games.
5.1 Passthrough ARC DTS
:
Yes
What it is:
TV can receive and pass DTS 5.1 signal to receiver via HDMI ARC.
When it matters:
5.1 audio on DVDs, Blu-rays and video games.
5.1 Passthrough Optical Dolby Digital
:
Yes
What it is:
TV can receive and pass Dolby Digital signal to receiver via digital optical.
When it matters:
5.1 audio on DVDs, Blu-rays and video games.
5.1 Passthrough Optical DTS
:
Yes
What it is:
TV can receive and pass DTS signal to receiver via digital optical.
When it matters:
5.1 audio on DVDs, Blu-rays and video games.
HDMI 2.0 Full Bandwidth
:
Yes (HDMI 1,2,3)
What it is:
HDMI 2.0 is the main used HDMI standard and supports a range of video resolutions and refresh rates up to 4k@60Hz, with a total maximum bandwidth up to 18Gbps.
HDMI 2.1 Full Bandwidth
:
No
What it is:
HDMI 2.1 is the latest update to the HDMI standard and supports a range of higher video resolutions and refresh rates including 8K60 and 4K120, and resolutions up to 10K. Dynamic HDR formats are also supported, and bandwidth capability is increased up to 48Gbps.
ARC
:
Yes (HDMI 1)
What it is:
Audio Return Channel (ARC) enables a TV to transmit, via an HDMI cable, audio data to an A/V receiver, without the need for any extra audio cables.
When it matters:
When connecting your audio/video receiver directly to your TV via an HDMI cable.
USB 3.0
:
Yes (2)
What it is:
USB 3.0 is the latest USB standard which can transfer data up to 5 Gbit/s, and is easily recognizable due to its blue color-coding of the connector.
All three HDMI inputs support HDR and HDMI 2.0 at full bandwidth which is good when using multiple HDR capable devices.
Sound Quality
What it is:
How well and accurately the audio is reproduced.
When it matters:
When a good and accurate sound reproduction is needed.
Score components:
- 75% Frequency Response
- 25% Distortion
Score distribution:
The sound quality of the L554UCNN is poor. The TV doesn't produce much bass and can't get very loud. There isn't too much distortion but a cheap soundbar is still an improvement over the TV speakers.
6.2
Frequency Response
What it is:
How accurately the sound level of each frequency is being produced.
When it matters:
For a balanced and neutral sound.
Score components:
- 30% Low-Frequency Extension
- 5% Std. Dev. @ 70
- 20% Std. Dev. @ 80
- 15% Std. Dev. @ Max
- 20% Max
- 10% Dynamic Range Compression
Score distribution:
Low-Frequency Extension
:
142.54 Hz
What it is:
The lowest frequency at which the frequency response reaches -3dB of the target response.
When it matters:
Movies, Gaming. Shows how extended the bass is.
Good value:
< 60Hz
Noticeable difference:
10Hz
Score distribution:
Std. Dev. @ 70
:
5.51 dB
What it is:
The amount of deviation (weighted standard deviation) in frequency response measured at 70dB SPL, as compared to a target response that would sound perfectly balanced to most people.
When it matters:
Shows the TV's frequency response at quiet listening levels
Good value:
< 4 dB
Noticeable difference:
0.5 dB
Score distribution:
Std. Dev. @ 80
:
5.53 dB
What it is:
The amount of deviation (weighted standard deviation) in frequency response measured at 80dB SPL, as compared to a target response that would sound perfectly balanced to most people.
When it matters:
Shows the TV's frequency response at moderate listening levels
Good value:
< 4 dB
Noticeable difference:
0.5 dB
Score distribution:
Std. Dev. @ Max
:
5.35 dB
What it is:
The amount of deviation (weighted standard deviation) in frequency response measured with the TV at maximum volume, as compared to a target response that would sound perfectly balanced to most people.
When it matters:
Shows the TV's frequency response at under maximum load
Good value:
< 4 dB
Noticeable difference:
2 dB
Score distribution:
Max
:
92.3 dB SPL
What it is:
Maximum volume reached by the TV at their optimum viewing distance (size dependent)
When it matters:
For listening to loud audio.
Good value:
> 88 dB
Noticeable difference:
2 dB
Score distribution:
Dynamic Range Compression
:
0.93 dB
What it is:
The amount of difference between the TVs frequency response performance at 70dB SPL and Max dB SPL. Too much compression will result in pumping in the sound.
When it matters:
When an accurate and free-of-pumping performance is required at higher volumes
Good value:
< 3dB
Noticeable difference:
0.5
Score distribution:
Poor frequency response. The Super4 produces very little bass and doesn't get very loud either. The low-end cut-off of 180Hz and maximum volume of 85.5dB SPL are both quite poor, even for a TV. On the plus side, there doesn't seem to be much compression and pumping happening even under maximum load.
7.3
Distortion
What it is:
Deformation of an output signal compared to its input, usually clipping, harmonic distortion, or inter-modulation distortion caused by non-linear behavior of the sound system.
When it matters:
When a clean, pure and transparent reproduction is desired.
Score components:
- 40% Weighted THD @ 80
- 25% Weighted THD @ Max
- 10% IMD @ 80
- 25% IMD @ Max
Score distribution:
Weighted THD @ 80
:
0.039
What it is:
The overall amount of harmonic distortion measured at 80dB SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters:
How pure the sound is at moderate listening levels.
Good value:
< 0.100
Noticeable difference:
0.100
Score distribution:
Weighted THD @ Max
:
0.316
What it is:
The overall amount of harmonic distortion measured at the TV's maximum SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters:
How pure the sound is at moderate listening levels.
Good value:
< 0.100
Noticeable difference:
0.100
Score distribution:
IMD @ 80
:
3.07 %
What it is:
The average amount of inter-modulation distortion produced by the TV under maximum load. The percentage shown here is the average result of 3 separate test signals/standards: SMPTE, DIN, & CCIF
When it matters:
When a clean and free of aliasing reproduction is desired
Good value:
< 5%
Noticeable difference:
2
Score distribution:
IMD @ Max
:
10.52 %
What it is:
The average amount of inter-modulation distortion produced by the TV under maximum load. The percentage shown here is the average result of 3 separate test signals/standards: SMPTE, DIN, & CCIF
When it matters:
When a clean and free of aliasing reproduction is desired
Good value:
< 5%
Noticeable difference:
2
Score distribution:
Average distortion performance. The overall amount of harmonic distortion at 70dB and 80dB SPL is quite low. There is, however, a little bit of rise in distortion under maximum load, but remaining within an acceptable range.
Smart Features
Score components:
- 42% Interface
- 2% Ad-Free
- 37% Apps and Features
- 16% Remote
- 3% Remote App
Score distribution:
The LeEco Super4 runs Android TV with a skin called eui, Ecosystem User Interface. It comes preinstalled with many popular apps such as Netflix, YouTube and Hulu, and many more apps can be downloaded from the Google Play Store. The TV supports Google Cast so content can be cast to the TV from other devices such as smartphones. The TV has several USB ports that allow content to be played from a flash drive. The included remote is fairly simple but it does include a microphone for voice recognition which works well. The TV supports using a webcam and has a USB port located on top of the TV to make it easier to connect a webcam, though none is included with the TV.
7.0
Interface
What it is:
The usability, features and performance of the main interface of the TV, not including the interfaces of the apps themselves.
When it matters:
Anytime when using the TV, but especially when changing settings and using apps.
Score components:
Subjectively assigned
Score distribution:
Ease of Use
:
Average
What it is:
How easy the interface is to navigate, affected by the organization of its layout, placing frequently accessed elements in areas that are faster to access, etc.
When it matters:
When using the smart features.
Smoothness
:
Average
What it is:
How smooth the interface is to navigate, affected by lag and frame drops.
When it matters:
When using the smart features.
Time Taken to Select YouTube
:
4 s
What it is:
How long it takes to select YouTube for launch, starting from HDMI 1 input, when YouTube is placed first on the list of apps or added as a shortcut. This does not include app launch time, and does not use a fixed YouTube button on a remote. This serves as an indication of the time needed to select any app.
When it matters:
When launching any app.
Time Taken to Change Backlight
:
8 s
What it is:
The time it takes to navigate to the 'Backlight' setting ('Brightness' on Sony TVs). This serves as an indication of how long it takes to navigate to basic TV settings.
When it matters:
When changing TV settings.
Advanced Options
:
Many
What it is:
Whether advanced options and settings are available, such as color calibration.
When it matters:
When customizing the TV and using the smart features.
There's little lag when navigating through the interface, but the animations are often choppy, especially in the home screen. We also experienced some picture glitches during normal use. Most were solved by turning the TV off then back on, but one glitch with the YouTube app required the TV to be factory reset before it was fixed.
10
Ad-Free
What it is:
Whether or not ads can be found on the TV's smart platform.
When it matters:
When using the smart features.
Score distribution:
Ads
:
No
What it is:
Whether the TV's main interface has ads. This does take into account ads in third-party apps.
When it matters:
When using the smart features.
Opt-out
:
N/A
What it is:
Whether you can opt out of the ad services or not. A TV only passes this test if it allows you to remove them completely, not only disable the personalized advertising.
When it matters:
When using the smart features.
Suggested Content in Home
:
Yes
What it is:
Whether suggested content appears in the TV's home menu or main menu. Suggested content can include recommended movies, TV shows, YouTube videos etc.
Opt-out of Suggested Content
:
Yes
What it is:
Whether the suggested content feed in the home menu can be removed or hidden
No ads appear in the interface of the TV, although the top row of the homescreen contains featured content from sources such as Google Play Movies and YouTube, some of which is not free. Apps downloaded from the Google Play Store may contain ads, but they can be prevented from showing personalized ads by changing the ads settings in the About section of the Super4's settings.
9.0
Apps and Features
What it is:
The usability, features and performance of apps and other smart features.
When it matters:
Only when using smart features such as apps, casting and USB playback.
Score components:
Subjectively assigned
Score distribution:
App Selection
:
Very Many
What it is:
The number and variety of apps available to download for the smart platform.
When it matters:
When downloading new apps.
App Smoothness
:
Average
What it is:
How smooth it feels to navigate the interfaces of apps, affected by lag and frame drops.
When it matters:
When using apps.
USB Drive Playback
:
Yes
What it is:
Whether the TV can play content from a drive connected to one of the TV's USB ports.
USB Drive HDR Playback
:
Yes
What it is:
Whether HDR files played from a USB drive can be displayed properly.
HDR in Netflix
:
Yes
What it is:
Whether HDR content on Netflix can be played back in HDR using the native Netflix app.
HDR in Amazon Video
:
N/A
What it is:
Whether HDR content on Amazon Video can be played in HDR using the native Amazon Video app.
HDR in YouTube
:
No
What it is:
Whether HDR content on YouTube can be played in HDR using the native YouTube app.
Lots of apps come preinstalled such as Netflix, YouTube and Hulu. Many more apps can be downloaded from the included Google Play Store. Also included are LeEco Ecosystem apps like LeZone and My LeEco.
6.5
Remote
What it is:
The usability and features of the TV's physical remote.
Score components:
Subjectively assigned
Score distribution:
CEC Menu Control
:
Yes
What it is:
Whether the remote can act as a universal remote for HDMI CEC enabled devices. This was tested on our Samsung UBD-K8500 4K Blu-ray player, and may not be valid for other CEC devices as implementations vary by manufacturer.
Other Smart Features
:
No
What it is:
Whether the remote has any other smart features, such as a pointer, universal remote support for non HDMI CEC devices, etc.
The included remote has all the standard TV buttons as well as a Netflix button that switches to the app, a LeEco button that switches to the "Le" app, and a microphone button which activates voice control. The remote needs to be paired with the TV for some of its features to work, such as voice control.
6.0
Remote App
What it is:
The features of the official phone and tablet app for the TV.
Score components:
Subjectively assigned
Score distribution:
Acts as the Remote
:
Yes
What it is:
Whether the remote app can emulate all the buttons of the physical remote.
Directly Launches Apps and Inputs
:
No
What it is:
Whether the remote app can directly launch the TV's apps and change between its inputs, without requiring any interaction with menus on the TV.
Inputs Text in YouTube
:
Yes
What it is:
Whether the remote app can enter text for YouTube searches.
Streams Device Files
:
No
What it is:
Whether the remote app can stream files from the phone or tablet to the TV, files such as pictures, music and video.
Differences between Sizes and Variants
We tested the 55" (L554UCNN). For the most part, we expect our review to be valid for the 43" (L434UCNN) and 65" (L654UCNN) .
If someone comes across a different type of panel or if their LeEco Super4 doesn't correspond to our review, let us know and we will update the review.
| Size | Model | Alternative names |
| 43" | L434UCNN | X43 |
| 55" | L554UCNN | X55 |
| 65" | L654UCNN | X65 |
Compared to other TVs
Top left: Vizio M Series 2016 (M70-D3). Bottom left: Samsung KU6300 (UN55KU6300). Middle: LeEco Super4 (L554UCNN ). Top right: Sony X700D (XBR55X700D). Bottom right: Hisense H8C (50H8C). Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.
While the LeEco Super4 TV isn't a bad TV, it faces fierce competition in its price range that is most often a better choice.
TCL R617
55" 65" 75"
The TCL 6 Series R617 is much better than the LeEco Super4. The TCL R617 is much brighter and has a local dimming feature that is great for dark room viewing. The R617 is able to consistently remove judder from all 24p sources, great for watching movies, and the R617 has a better black frame insertion feature that improves the clarity of motion. The R617 also has much lower input lag, which is great for gamers.
Samsung NU7100
40" 43" 50" 55" 58" 65" 75"
The Samsung NU7100 is a bit better than the LeEco Super4. The NU7100 has better black uniformity that makes dark room viewing more enjoyable. Motion looks clearer on the NU7100 due to the much better optional black frame insertion feature, and the NU7100 has less input lag. The LeEco Super4 has slightly better reflection handling and a faster response time.
Sony X900E
49" 55" 65" 75"
The Sony X900E is much better than the LeEco Super4. The X900E is brighter and has better reflection handling, making it a better choice for a well-lit room. The X900E has a local dimming feature that improves dark room viewing, and the X900E is able to remove judder from all 24p sources.
TCL S517
43" 49" 55" 65"
The TCL 5 Series S517 is a bit better than the LeEco Super4. The TCL S517 is able to completely remove judder from all 24p sources, whereas the LeEco Super4 can't remove judder from any source. The S517 has much lower input lag, great for gaming or for use as a PC monitor.
Conclusion
SEE PRICE
Amazon.com
Decent TV for mixed usage. It has a very narrow viewing angle but picture quality is above average thanks to its very good contrast ratio. The TV will perform best when used in a darker environment since it's maximum brightness is not very high.
Average for watching movies in a dark room. Blacks are deep and uniform, but the TV lacks any local dimming feature to enhance them even further.
Passable set for watching TV in a brighter environment. Narrow viewing angles deteriorate the picture quality at even a slight angle. Acceptable amount of reflections, but the TV doesn't get bright enough to counter-act brighter environments.
Slightly above average for watching sports. Mediocre gray uniformity and poor viewing angle cause even colored fields to look blotchy and change color at the slightest angle change.
Good TV for gaming. Moderate amount of input lag and little motion blur, so everything feels fluid and snappy.
Decent TV for HDR Movies. Because of its low peak brightness, HDR content will not have much of a visual effect. It does have a wide color gamut which is good.
Very good for HDR gaming. 4k input lag is not affected by having an HDR input. Peak brightness is limited, however, so the visual effect will not be the most impactful.
Poor PC monitor. No chroma 4:4:4 support and narrow viewing angles make this TV a bad choice for a PC monitor.
