0 Compare TCL 75X915 vs TCL 55S21 - DisplayDB

Premium subscription

Limited offer: $9.99 FREE

Subscription benefits:

  • Receive exclusive deals
  • Receive promo codes for monitors and TVs
  • Be the first to read our premium content

As Amazon associates we earn from qualifying purchases.

Comparison between TCL 75X915 vs TCL 55S21

General Info
Model Number TCL 75X915 TCL 55S21
Price
Type TV TV
Year 2020 2020
Brand TCL TCL
Model Series X91
Model Number 75X915 55S21
Display
Screen Size Class 75" (inches) 55" (inches)
Diagonal Size 74.53 in
189.3 cm
1893 mm
6.21 ft
54.65 in
138.8 cm
1388 mm
4.55 ft
Screen Width 64.97 in
165 cm
1650.24 mm
5.41 ft
47.62 in
121 cm
1209.6 mm
3.97 ft
Screen Height 36.55 in
92.8 cm
928.26 mm
3.05 ft
26.79 in
68 cm
680.4 mm
2.23 ft
Display Type VA
Display Bit Depth 10 bits 10 bits (8 bits + FRC)
Frame Rate Control Yes
Max Number of Colors 1073741824 1073741824
Bits 30 30
Screen Aspect Ratio 16:9 16:9
Screen Resolution 7680 x 4320 3840 x 2160
Screen Pixel Pitch 0.215 mm 0.315 mm
Screen Pixel Density 118 ppi 80 ppi
Screen-to-Body Ratio 95.29 % 92.54 %
Backlight Source Direct LED (Full-Array Local Dimming) LED
DCI P3 95%
Max Screen Brightness 1000 cd/m²
Screen Horizontal Viewing Angle 178 °
Screen Vertical Viewing Angle 178 °
Screen Input Lag 10 ms
HDR HDR10
HDR10+
Dolby Vision
HLG (Hybrid Log Gamma)
HDR10
HLG (Hybrid Log Gamma)
3D No No
Size, weight, color
Case Depth 3.54 in
9 cm
90 mm
0.3 ft
3.31 in
8.4 cm
84 mm
0.28 ft
Case Weight 31.3 kg
69 lbs
11.2 kg
25 lbs
Case Width with Stand 66.65 in
169.3 cm
1693 mm
5.55 ft
48.7 in
123.7 cm
1237 mm
4.06 ft
Case Height with Stand 45.98 in
116.8 cm
1168 mm
3.83 ft
30.39 in
77.2 cm
772 mm
2.53 ft
Case Depth with Stand 14.84 in
37.7 cm
377 mm
1.24 ft
11.81 in
30 cm
300 mm
0.98 ft
Case Weight with Stand 31.9 kg
70 lbs
11.3 kg
25 lbs
Case Color Brushed Titanium Black
Hardware
CPU Cores 4
Internal Storage 16
TV Tuner Analog (NTSC/PAL/SECAM)
DVB-T
DVB-T2
DVB-C
DVB-S
DVB-S2
Analog (NTSC/PAL/SECAM)
ATSC
Clear QAM
Built-in Camera Yes No
Network LAN
Wi-Fi
802.11a (IEEE 802.11a-1999)
802.11b (IEEE 802.11b-1999)
802.11g (IEEE 802.11g-2003)
802.11n (IEEE 802.11n-2009)
802.11n 5GHz
802.11ac (IEEE 802.11ac)
Wi-Fi Direct
DLNA
Bluetooth 5.0
LAN
Wi-Fi
802.11a (IEEE 802.11a-1999)
802.11b (IEEE 802.11b-1999)
802.11g (IEEE 802.11g-2003)
802.11n (IEEE 802.11n-2009)
802.11n 5GHz
802.11ac (IEEE 802.11ac)
Wi-Fi Direct
DLNA
Connectivity 3 x HDMI 2.1
1 x Satellite In (F-type)
1 x Optical Audio Out
1 x Antenna (RF)
1 x 3.5 mm Audio Out
1 x Video Component In 3.5 mm jack (CVBS)
2 x USB 2.0
1 x CI+ 1.4
1 x Ethernet RJ45
4 x HDMI 2.0 (ARC)
1 x Cable/Antenna In (F-type female)
1 x Optical Audio Out
1 x 3.5 mm Audio Out
1 x AV Composite In (Video + L/R)
1 x USB 2.0
1 x Ethernet RJ45
Audio
Audio Speakers 2 x 5W 2 x 8W
Features
OS Android 9.0 Pie Roku OS 9.x
Cool Features Wide Color Gamut
Disney+
UHD Upscaling
UHD Premium Color Extender
YouTube 8K
Dimming Pro
Noise Reduction
Game Mode
IPQ 2.0 Engine
TCL AI-IN
Picture-in-Picture
Voice command
HbbTV 2.0.2
Google Assistant
Alexa
Quantum Dot Color
IMAX Enhanced
Amazon Prime Video
Mega Dynamic Contrast
Apple HomeKit
Disney+
Netflix
UHD Upscaling
Smart HDR
Google Assistant
Alexa
YouTube
Amazon Prime Video
Ergonomics
Case Width 65.79 in
167.1 cm
1671 mm
5.48 ft
48.7 in
123.7 cm
1237 mm
4.06 ft
Case Height 37.87 in
96.2 cm
962 mm
3.16 ft
28.31 in
71.9 cm
719 mm
2.36 ft
Vesa Mount Support Yes Yes
VESA Interface Standard Size 400 x 400 300 x 300
Removable VESA Stand No Yes
Height Adjustment No No
Landscape or Portrait Pivot Support No No
Left or Right Swivel Support No No
Forward and Backward Tilt Support No No
Frequency and Interpolation
Vertical Digital Frequency 50 Hz / 60 Hz 50 Hz / 60 Hz
Screen Interpolation Technology Picture Performance Index Picture Performance Index
Screen Interpolation Value 4000 1800
Screen Interpolation Measurement Unit PPI PPI
Accessories
Extras Remote control - RC602S6 + RC802N4 Remote control - RC280
Certificates and Standards
Licenses RoHS
Usage and Storage Requirements
Safe Operating Temperature Level 5 °C - 35 °C
41 °F - 95 °F
Safe Operating Humidity Level 20 % - 80 %
Internal Storage Temperature -15 °C - 45 °C
5 °F - 113 °F
Internal Storage Humidity 10 % - 90 %
TCL 75X915 TCL 55S21