TCL US5800 TV REVIEW

Usage Ratings - Version 1.0
7.0
Mixed Usage
Value for price beaten by
: Not at the latest test bench
7.0
Movies
6.7
TV Shows
7.0
Sports
7.5
Video Games
6.8
HDR Movies
5.2
HDR Gaming
4.7
PC Monitor
This TV was replaced by the TCL S Series/S405 4k 2018

Type : LED
Resolution : 4k
Refresh Rate : 60 Hz

The TCL US5800 Series UHD LED has an average picture quality for a 4k TV. It has a bit more blur than ideal on fast sequences. The screen of the US5800 also produces harsh reflections that can't get countered by the low TV brightness. The Roku smart platform is great though and the TV operation is user-friendly.

Test Results
Design 6.5
Picture Quality 7.1
Motion 6.6
Inputs 6.4
Sound Quality 5.5
Smart Features 9.0
Pros
  • Great smart platform
Cons
  • More blur than ideal
  • Not suitable for a bright living room
  • Average screen uniformity

Check Price

6.5

Design

Curved : No

The TCL US5800 is a good looking TV although a thick one. It is mostly made of plastic except for its feet that are made of metal.

Stand

The two feets are made of metal with a silver finish.

Footprint of the 55" TV stand: 9.1" x 39.8"

Back
Wall Mount : VESA 200x200

The TV isn't attractive from the back. It has a few different level of thickness so it might look strange when wall mounted. When it is, most of its connections won't be blocked which is good.

Borders
Borders : 0.63" (1.6 cm)

Borders have an average thickness.

Thickness
Max Thickness : 2.36" (6.8 cm)

From the side, the TV is fairly thick and has an unattractive design which reminds of older LCD TVs.

7.1

Picture Quality

Watching movies on the TCL US5800 is decent. DVDs and blu-rays play smoothly but judder is present in movies from other sources. With high quality content the picture is detailed enough but some low resolution content doesn't exhibit the same performance. Out of the box, the colors of the TCL US5800 are a little off. On the good side, watching dark scenes, even with all the lights off, offers some interesting depth. Unfortunately, the US5800 doesn't support higher end features like HDR, 3D or local dimming.

8.1 Contrast
Native Contrast
:
3503 : 1

Blacks aren't the best but deep enough to offer a good native contrast ratio which help picture quality in a dark room.

0 Local Dimming
Local Dimming
:
No
Backlight
:
Direct

6.7 SDR Peak Brightness
SDR Real Scene Peak Brightness
:
219 cd/m2
SDR Peak 2% Window
:
216 cd/m2
SDR Peak 10% Window
:
213 cd/m2
SDR Peak 25% Window
:
211 cd/m2
SDR Peak 50% Window
:
212 cd/m2
SDR Peak 100% Window
:
211 cd/m2
SDR Sustained 2% Window
:
216 cd/m2
SDR Sustained 10% Window
:
213 cd/m2
SDR Sustained 25% Window
:
211 cd/m2
SDR Sustained 50% Window
:
212 cd/m2
SDR Sustained 100% Window
:
211 cd/m2

The TCL US5800 isn't bright at all. Brightness kept around the same level for all window sizes.

N/A HDR Peak Brightness
HDR Real Scene Peak Brightness
:
N/A
HDR Peak 2% Window
:
N/A
HDR Peak 10% Window
:
N/A
HDR Peak 25% Window
:
N/A
HDR Peak 50% Window
:
N/A
HDR Peak 100% Window
:
N/A
HDR Sustained 2% Window
:
N/A
HDR Sustained 10% Window
:
N/A
HDR Sustained 25% Window
:
N/A
HDR Sustained 50% Window
:
N/A
HDR Sustained 100% Window
:
N/A

This TV does not support HDR.

6.7 Gray Uniformity
50% Std. Dev.
:
3.132 %
50% DSE
:
0.220 %

Gray uniformity isn't good. Corners of the screen are darker, banding can be seen both vertically and horizontally (even at a slight angle) and some color tints can be observed.

4.3 Viewing Angle
LCD Type
:
VA
Color Shift
:
20 °
Brightness
:
30 °
Black Level
:
21 °

From the side, the picture of the US5800 deteriorates but not as much as some other LED TVs.

Update: We have changed the methodology of testing. Since this is an old TV which we don't have anymore, we extrapolated the results.

9.4 Black Uniformity
Native Std. Dev.
:
0.757 %

Great as a whole. Faint clouding can be seen when the TV displays a totally black screen but nothing distracting.

8.0 Gradient
Color Depth
:
8 Bit

8 bit gradations can be seen in our gradient pattern. Also, some tints of colors are present in the gray gradations. This shouldn't much of a problem in normal content though.

8.2 Pre Calibration
White Balance dE
:
3.89
Color dE
:
2.5155
Gamma
:
2.04

Out of the box, white balance dE is high and gamma is off. Although this results in a picture that is far from perfect, most people won't notice.

9.5 Post Calibration
White Balance dE
:
0.34
Color dE
:
1.4096
Gamma
:
2.18

The only possible way to calibrate the TV is with the Roku application. There they offer color space, 2 point and 11 point settings. Calibrating the television was a nightmare, and very time consuming. Some errors couldn't be fixed.

7.5 480p Input

480p upscaling is a little inconsistent. It sometimes looks slightly blocky. There are worse TVs than this one though and most won't notice.

8.0 720p Input

The TCL US5800 does a better job with 720p content like cable channels, once upscaled the image looks good.

9.0 1080p Input

1080p looks detailed enough. Closer than about two feet away from the TV, the pixel sub-structure can be seen. This can't be seen farther away and is not an issue.

9.5 4k Input

4k offers rich details. As in 1080p, from very close, the pixel substructure can be seen but is a non-issue from afar.

6.9 Color Gamut
Wide Color Gamut
:
No
DCI P3 xy
:
77.04 %
DCI P3 uv
:
83.57 %
Rec 2020 xy
:
55.48 %
Rec 2020 uv
:
61.86 %

Good enough for Rec.709 only. There is no wide color gamut option on this TV.

5.4 Color Volume
Normalized DCI P3 Coverage
:
59.970 %
10,000 cd/m² DCI P3 Coverage
:
33.222 %
Normalized Rec 2020 Coverage
:
43.747 %
10,000 cd/m² Rec 2020 Coverage
:
24.273 %

10 Image Retention
IR after 0 min recovery
:
0.000 %
IR after 2 min recovery
:
0.000 %
IR after 4 min recovery
:
0.000 %
IR after 6 min recovery
:
0.000 %
IR after 8 min recovery
:
0.000 %
IR after 10 min recovery
:
0.000 %

7.0 Reflections
Reflection
:
2.4 %
Screen Finish
:
Semi-gloss

Direct reflections are harsh on the screen of the US5800. Since the TV can't get bright, this will be a problem in moderately lit to bright rooms.

0 3D
3D
:
No
3D Type
:
No
2D to 3D
:
No

Pixels

The result of setting 'color temperature' to warm can be found here.

6.6

Motion

Sports is average on the TCL US5800. Fast moving objects or players appear slightly blurry and screen uniformity issues arise when cameras are panning over playing fields.

7.5 Motion Blur
Response Time
:
19.9 ms
Overshoot
:
0 ms

The trail following the logo is a little bit long and has a darker yellow tint. The US5800 has an unusual backlight flickering. The PWM frequency is 200Hz, which isn't a multiple of 60Hz. Visually, it produces a shaking duplication of fast moving objects.

3.3 Image Flicker
PWM Dimming Frequency
:
200 Hz
BFI
:
No
BFI Frequency
:
200 Hz
BFI In Game Mode
:
No

7.1 24p Playback
Judder-free 24p
:
Yes
Judder-free 24p via 60p
:
No
Judder-free 24p via 60i
:
No

Only movies from 24p sources are completely judder-free. Other sources have constant judder. It might not be an issue for everyone though since most cannot detect judder in movies.

0 Motion Interpolation
Motion Interpolation (30 fps)
:
No
Motion Interpolation (60 fps)
:
No

The US5800 doesn't have a motion interpolation feature.

6.4

Inputs

The gaming performance on the TCL US5800 is average. There is some blur for moving objects and average input lag. As a PC monitor, the US5800 covers the basic resolutions.

7.2 Input Lag
1080p @ 60Hz
:
46.3 ms
1080p With Interpolation
:
N/A
1080p @ 60Hz Outside Game Mode
:
46.3 ms
1080p @ 60Hz @ 4:4:4
:
N/A
4k @ 60Hz
:
41.6 ms
4k @ 60Hz @ 4:4:4
:
N/A
4k @ 60Hz + HDR
:
N/A
4k @ 60Hz @ 4:4:4 + 8 bit HDR
:
N/A

The 1080p input lag of the US5800 is 46.3ms, which is average. For most gamers this shouldn’t be noticeable. Input lag is the same with and without Game Mode enabled.

2.0 Supported Resolutions
1080p @ 60Hz @ 4:4:4
:
No
1080p @ 120Hz
:
No
4k @ 30Hz @ 4:4:4
:
No
4k @ 60Hz
:
Yes
4k @ 60Hz @ 4:4:4
:
No

Looking at the screen from up close you can notice a strange pixel pattern. This only occurs when the 'color temperature' setting is set to warm. You can see the pixel picture here.

Update: From further testing we have concluded that all current TCL TVs that we have reviewed do not display 4:4:4, but 4:2:2. This is due to the TV inputs accepting 4:4:4 but actually displaying 4:2:2. 4:2:2 is better than 4:2:0, but slightly blurrier for text than 4:4:4.

Side Inputs
Rear Inputs
Total Inputs
HDMI : 4
USB : 1
Digital Optical Audio Out : 1
Analog Audio Out 3.5mm : 1
Analog Audio Out RCA : 1
Component In : 0
Composite In : 1
Tuner (Cable/Ant) : 1
Ethernet : 1
DisplayPort : 0
IR In : 0
SD/SDHC : 0

Inputs Specifications
HDR10
:
No
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 1)
USB 3 : No
HDCP 2.2 : Yes
CEC : Yes
MHL : No
Variable Analog Audio Out : Yes

5.5

Sound Quality

The sound of the TCL US5800 is especially bad. It has a low maximum volume level and distortion is omnipresent. Anyone that cares about sound should invest in an external sound solution like a sound bar. 

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.

5.6 Frequency Response
Std. Dev. @ 70
:
5.51 dB SPL
Std. Dev. @ 80
:
5.27 dB SPL
Std. Dev. @ Max
:
6.58 dB SPL
Max
:
87.5 dB SPL
Low-end Cutoff
:
160 Hz

Poor low-end cutoff and maximum loudness. At 160Hz and 87.5dB respectively, these values are not good even for a TV. The frequency response is also below average and pumping may be present at higher volumes.

5.5 Total Harmonic Distortion
Distortion @ 70
:
0.028
Distortion @ 80
:
0.081
Distortion @ Max
:
0.199

The overall amount of harmonic distortion is elevated, even at lower volumes. At maximum volume, there is a noticeable rise in distortion, but not as bad as some other TVs we have measured.

9.0

Smart Features

Smart OS : Roku

Roku is the smart platform on the TCL US5800 and it delivers great smart features. It has thousands of apps including most of the popular ones. Its interface is quick and the menus and remote are straightforward for anyone to use. The fact that this TV doesn't have a lot of options plays favorably for its user-friendliness. The US5800 also has a lot of inputs which is great.

Apps

Roku is the smart platform that offers the most apps. All aren't great but the most popular ones are there.

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

TV Controls

TV controls can be found on the back of the right side of the TV. The controls can be accessed if the TV is wall mounted.

Remote
Remote : Basic

The remote is particularly simple and easy to use. It has a minimum of buttons which emphasis simplicity.

In The Box

  • Manual
  • Remote
  • Batteries

Misc
Power Consumption : 83 W
Power Consumption (Max) : 151 W
Firmware : 7.0.5

Differences between Sizes and Variants

We tested the 55" (55US5800). For the most part, we expect our review to be valid for the 65" (65US5800).

If someone comes across a different type of panel or if their TCL US5800 doesn't correspond to our review, let us know and we will update the review.

Size Model
55" 55US5800
65" 65US5800

Compared to other TVs

Top left: LG UH7700 (55UH7700). Bottom left: Samsung KU6300 (UN55KU6300). Middle: TCL US5800 (55US5800). Top right: Vizio D 4k 2016 (D50u-D1). Bottom right: TCL FS3750 (48FS3750).  Unlike our other photographs, this picture wasn't taken under a controlled environment, so do not draw conclusions from it.

Although the TCL US5800 has good value for the price, other 4K TVs offer better picture quality and might be worth investing into because of this. Not all TVs are as good when it comes to smart functionalities though.

7.0 Mixed Usage

For a 4k TV, the TCL US5800 isn't terrible but still at the bottom of the range. For most usages, 'average' would be the word to summarize its performances. It has more blur than ideal, its colors aren't that good and the fact that the TV can't get bright emphasis its reflections issues. The main strength of the TCL US5800 is really its strong Roku smart platform.

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