Comparison between TCL 55S423 vs TCL 55R635

General Info
Model Number	TCL 55S423	TCL 55R635

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Type	TV	TV
Year	2018	2020
Brand	TCL	TCL
Model Series	S423	R635
Model Number	55S423	55R635
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	90.01 %	93.99 %
Backlight Source	Direct LED	Mini LED
DCI P3		90%
Rec.2020		70
Screen Brightness		600 cd/m²
Max Screen Brightness		900 cd/m²
Static Screen Contrast		5500 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag		9.3 ms
Display Coating		Glossy
HDR	HDR10	HDR10 HLG (Hybrid Log Gamma) Dolby Vision
3D	No	No
Size, weight, color
Case Depth	3.1 in 7.9 cm 78.74 mm 0.26 ft	2.8 in 7.1 cm 71.12 mm 0.23 ft
Case Weight	12.1 kg 27 lbs	19.01 kg 42 lbs
Case Width with Stand	49.9 in 126.8 cm 1267.5 mm 4.16 ft	48.3 in 122.7 cm 1226.82 mm 4.03 ft
Case Height with Stand	30.6 in 77.7 cm 777.2 mm 2.55 ft	31.1 in 79 cm 789.94 mm 2.59 ft
Case Depth with Stand	9.9 in 25.2 cm 251.5 mm 0.83 ft	13.7 in 34.8 cm 347.98 mm 1.14 ft
Case Weight with Stand	12.3 kg 27 lbs	19.82 kg 44 lbs
Case Color	Black, Silver	Black
Hardware
CPU Cores	2	4
GPU Cores	2	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) 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 1 x Satellite In (F-type female) 1 x S/PDIF 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	Auto Game Mode Contrast Control Zones technology with up to 240 zones Smart HDR FullView edge-to-edge glass design Quantum Dot Color THX Certified Game Mode Google Assistant Easy Voice Control AiPQ Engine V-Chip Smart 4K Upscaling Alexa Smart Contrast
Ergonomics
Case Width	49.9 in 126.8 cm 1267.5 mm 4.16 ft	48.3 in 122.7 cm 1226.82 mm 4.03 ft
Case Height	28.4 in 72.1 cm 721.4 mm 2.37 ft	28.1 in 71.4 cm 713.74 mm 2.34 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	200 x 200	300 x 300
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	48 Hz - 120 Hz
Screen Interpolation Technology	Clear Motion Index	Natural Motion
Screen Interpolation Value	120	480
Screen Interpolation Measurement Unit	CMI	NM
Accessories
Extras	Remote control - RC280	Voice-Enabled Remote Control - RC580
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 55S423

TCL 55R635