Comparison between TCL 43S421 vs TCL 43S435

General Info
Model Number	TCL 43S421	TCL 43S435

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Type	TV	TV
Year	2018	2021
Brand	TCL	TCL
Model Series	S421	S435
Model Number	43S421	43S435
Display
Screen Size Class	43" (inches)	43" (inches)
Diagonal Size	42.52 in 108 cm 1080 mm 3.54 ft	42.52 in 108 cm 1080 mm 3.54 ft
Screen Width	37.05 in 94.1 cm 941.184 mm 3.09 ft	37.05 in 94.1 cm 941.184 mm 3.09 ft
Screen Height	20.84 in 52.9 cm 529.416 mm 1.74 ft	20.84 in 52.9 cm 529.416 mm 1.74 ft
Display Bit Depth	10 bits (8 bits + FRC)	10 bits (8 bits + FRC)
Frame Rate Control	Yes	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	0.245 mm	0.245 mm
Screen Pixel Density	103 ppi	103 ppi
Screen-to-Body Ratio	90.83 %	90.66 %
Backlight Source	Direct LED	Direct LED
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
HDR	HDR10	HDR10 HLG (Hybrid Log Gamma)
3D	No	No
Size, weight, color
Case Depth	2.9 in 7.4 cm 73.7 mm 0.24 ft	3.3 in 8.4 cm 83.82 mm 0.28 ft
Case Weight	7.6 kg 17 lbs	7 kg 15 lbs
Case Width with Stand	38.3 in 97.3 cm 972.8 mm 3.19 ft	38.2 in 97 cm 970.28 mm 3.18 ft
Case Height with Stand	24.4 in 62 cm 619.8 mm 2.03 ft	24.6 in 62.5 cm 624.84 mm 2.05 ft
Case Depth with Stand	7.5 in 19.1 cm 190.5 mm 0.63 ft	9.9 in 25.1 cm 251.46 mm 0.83 ft
Case Weight with Stand	7.7 kg 17 lbs	7.1 kg 16 lbs
Case Color	Black	Black
Hardware
CPU Cores	2
GPU Cores	2
TV Tuner	Analog (NTSC/PAL/SECAM) Clear QAM ATSC	Analog (NTSC/PAL/SECAM) Clear QAM ATSC
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
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	3 x HDMI 2.0 (ARC; CEC) 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 3.5 mm jack 1 x USB 2.0 1 x Ethernet RJ45
Audio
Audio Speakers	2 x 8W	2 x 8W
Features
OS	Roku TV	Roku TV
Cool Features	4K Creative Pro HDCP (High-bandwidth Digital Content Protection) 2.2	Apple TV Apple Siri Google Assistant Prime Video Netflix Disney+ Amazon Alexa YouTube Apple HomeKit
Ergonomics
Case Width	38.3 in 97.3 cm 972.8 mm 3.19 ft	38.2 in 97 cm 970.28 mm 3.18 ft
Case Height	22.2 in 56.4 cm 563.9 mm 1.85 ft	22.3 in 56.6 cm 566.42 mm 1.86 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	100 x 100	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	Clear Motion Index
Screen Interpolation Value	120	120
Screen Interpolation Measurement Unit	CMI	CMI
Accessories
Extras	Remote control - RC282	Remote control- RC280
Certificates and Standards
Licenses	RoHS
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 % - 90 %

TCL 43S421

TCL 43S435