Comparison between TCL 55S421 vs Hisense 55U6G

General Info
Model Number	TCL 55S421	Hisense 55U6G

Price	Check on Amazon	Check on Amazon
Type	TV	TV
Year	2018	2021
Brand	TCL	Hisense
Model Series	S421	U6G
Model Number	55S421	55U6G
Alias		55U68G
Display
Screen Size Class	55" (inches)	55" (inches)
Diagonal Size	54.65 in 138.8 cm 1388 mm 4.55 ft	54.65 in 138.8 cm 1388 mm 4.55 ft
Screen Width	47.62 in 121 cm 1209.6 mm 3.97 ft	47.62 in 121 cm 1209.6 mm 3.97 ft
Screen Height	26.79 in 68 cm 680.4 mm 2.23 ft	26.79 in 68 cm 680.4 mm 2.23 ft
Display Type	VA	VA
Display Bit Depth	10 bits (8 bits + FRC)	10 bits
Frame Rate Control	Yes
Max Number of Colors	1073741824	1073741824
Bits	30	30
Screen Aspect Ratio	16:9	16:9
Screen Resolution	3840 x 2160	3840 x 2160
Screen Pixel Pitch	0.315 mm	0.315 mm
Screen Pixel Density	80 ppi	80 ppi
Screen-to-Body Ratio	91.16 %	94.34 %
Backlight Source	Direct LED	Direct LED (Full-Array Local Dimming)
Screen Brightness		250 cd/m²
Max Screen Brightness		600 cd/m²
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
HDR	HDR10	Dolby Vision HDR10 HDR10+ HLG (Hybrid Log Gamma)
3D	No	No
Size, weight, color
Case Depth	3 in 7.6 cm 76.2 mm 0.25 ft	3.07 in 7.8 cm 78 mm 0.26 ft
Case Weight	13.4 kg 29 lbs	14.7 kg 32 lbs
Case Width with Stand	49.1 in 124.7 cm 1247.1 mm 4.09 ft	48.31 in 122.7 cm 1227 mm 4.03 ft
Case Height with Stand	30.8 in 78.2 cm 782.3 mm 2.57 ft	30.43 in 77.3 cm 773 mm 2.54 ft
Case Depth with Stand	8.7 in 22.1 cm 221 mm 0.73 ft	8.9 in 22.6 cm 226 mm 0.74 ft
Case Weight with Stand	13.6 kg 30 lbs	14.9 kg 33 lbs
Case Color	Black	Black, Gray
Hardware
CPU Cores	2
GPU Cores	2
TV Tuner	Analog (NTSC/PAL/SECAM) Clear QAM ATSC	Analog (NTSC/PAL/SECAM) ATSC Clear QAM
Built-in Camera	No	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)	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) Bluetooth Wi-Fi Direct 2x2 MiMO
Connectivity	3 x HDMI 2.0 (ARC; CEC) 1 x Satellite In (Main; F-type female) 1 x S/PDIF 1 x 3.5 mm Audio Out 1 x AV Composite In (Video + L/R) 1 x USB 2.0 (max 0.5 A) 1 x Ethernet RJ45	4 x HDMI 2.0 (b; ARC; CEC) 1 x Cable/Antenna In (F-type) 1 x Optical Audio Out 1 x 3.5 mm Audio Out 1 x AV Composite In (Video + L/R) 2 x USB 2.0 1 x Ethernet RJ45
Audio
Audio Speakers	2 x 8W	2 x 10W
Features
OS	Roku TV	Android 10
Cool Features	4K Creative Pro HDCP (High-bandwidth Digital Content Protection) 2.2	Alexa Chromecast built-in Quantum Dot Color Disney+ MEMC (Motion Estimation Motion Compensation) YouTube Voice command Google Assistant Digital Noise Reduction 4K upscaling Wide Color Gamut Netflix AI Picture Optimization Prime Video
Ergonomics
Case Width	49.1 in 124.7 cm 1247.1 mm 4.09 ft	48.31 in 122.7 cm 1227 mm 4.03 ft
Case Height	28.5 in 72.4 cm 723.9 mm 2.38 ft	27.99 in 71.1 cm 711 mm 2.33 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	200 x 200
Removable VESA Stand	Yes	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	60 Hz	50 Hz / 60 Hz
Screen Interpolation Technology	Clear Motion Index	Motion Rate
Screen Interpolation Value	120	240
Screen Interpolation Measurement Unit	CMI	MR
Accessories
Extras	Remote control - RC282	Voice remote control
Certificates and Standards
Licenses	RoHS	FCC
Usage and Storage Requirements
Safe Operating Temperature Level	5 °C - 35 °C 41 °F - 95 °F	5 °C - 35 °C 41 °F - 95 °F
Safe Operating Humidity Level	20 % - 80 %	20 % - 80 %
Internal Storage Temperature	-15 °C - 45 °C 5 °F - 113 °F	-15 °C - 45 °C 5 °F - 113 °F
Internal Storage Humidity	10 % - 90 %	10 % - 70 %

TCL 55S421

Hisense 55U6G