Comparison between TCL 65S425 vs TCL 55R646

General Info
Model Number	TCL 65S425	TCL 55R646

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Type	TV	TV
Year	2018	2021
Brand	TCL	TCL
Model Series	S425	R646
Model Number	65S425	55R646
Display
Screen Size Class	65" (inches)	55" (inches)
Diagonal Size	64.53 in 163.9 cm 1639 mm 5.38 ft	54.65 in 138.8 cm 1388 mm 4.55 ft
Screen Width	56.24 in 142.8 cm 1428.48 mm 4.69 ft	47.62 in 121 cm 1209.6 mm 3.97 ft
Screen Height	31.63 in 80.4 cm 803.52 mm 2.64 ft	26.79 in 68 cm 680.4 mm 2.23 ft
Display Type	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	0.372 mm	0.315 mm
Screen Pixel Density	68 ppi	80 ppi
Screen-to-Body Ratio	93.24 %	92.67 %
Backlight Source	Direct LED	Mini LED
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Display Coating		Anti-glare/Matte
HDR	HDR10	HDR10 HLG (Hybrid Log Gamma) Dolby Vision HDR HDR10+
3D	No	No
Size, weight, color
Case Depth	3.1 in 7.9 cm 78.74 mm 0.26 ft	3.6 in 9.1 cm 91.44 mm 0.3 ft
Case Weight	17.6 kg 39 lbs	19.2 kg 42 lbs
Case Width with Stand	57.3 in 145.5 cm 1455.4 mm 4.77 ft	48.3 in 122.7 cm 1226.82 mm 4.03 ft
Case Height with Stand	36 in 91.4 cm 914.4 mm 3 ft	30.9 in 78.5 cm 784.86 mm 2.58 ft
Case Depth with Stand	11.8 in 30 cm 299.7 mm 0.98 ft	12.4 in 31.5 cm 315 mm 1.03 ft
Case Weight with Stand	18 kg 40 lbs	19.6 kg 43 lbs
Case Color	Black	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) 802.11ax (IEEE 802.11ax, Wi-Fi 6) Wi-Fi Direct
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	2 x HDMI 2.0 2 x HDMI 2.1 1 x AV Composite In 3.5 mm jack 1 x 3.5 mm Audio Out 1 x S/PDIF 1 x Cable/Antenna In (F-type female) 2 x USB 2.0 1 x Ethernet RJ45
Audio
Audio Speakers	2 x 8W	2 x 15W
Features
OS	Roku TV	Google TV
Cool Features	4K Creative Pro HDCP (High-bandwidth Digital Content Protection) 2.2	V-Chip Apple TV+ Smart Contrast Smart 4K Upscaling YouTube Smart HDR Auto Game Mode HDR Pro Pack Chromecast built-in Easy Voice Control Quantum Dot Color Netflix THX Certified Game Mode Disney+ Contrast Control Zones technology Alexa Prime Video FullView Edge-to-Edge Glass Design Apple AirPlay Google Assistant
Ergonomics
Case Width	57.3 in 145.5 cm 1455.4 mm 4.77 ft	48.3 in 122.7 cm 1226.82 mm 4.03 ft
Case Height	33.3 in 84.6 cm 845.82 mm 2.78 ft	28.5 in 72.4 cm 723.9 mm 2.38 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	400 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 - RC902N
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 65S425

TCL 55R646