Comparison between TCL 65EC780 vs TCL 55EP660

General Info
Model Number	TCL 65EC780	TCL 55EP660

Price	Check on Amazon	Check on Amazon
Type	TV	TV
Year	2019	2019
Brand	TCL	TCL
Model Series	EC78	EP66
Model Number	65EC780	55EP660
Alias	65EC780X1
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	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	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	92.07 %	90.77 %
Backlight Source	Edge LED	Direct LED
Screen Brightness	400 cd/m²	260 cd/m²
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
HDR	HDR10+ HDR Pro Dolby Vision	HDR10 HLG (Hybrid Log Gamma)
3D	No	No
Size, weight, color
Case Depth	13.27 in 33.7 cm 337 mm 1.11 ft	3.07 in 7.8 cm 78 mm 0.26 ft
Case Weight	27.4 kg 60 lbs	12.2 kg 27 lbs
Case Width with Stand	57.01 in 144.8 cm 1448 mm 4.75 ft	48.9 in 124.2 cm 1242 mm 4.07 ft
Case Height with Stand	36.65 in 93.1 cm 931 mm 3.05 ft	30.75 in 78.1 cm 781 mm 2.56 ft
Case Depth with Stand	3.74 in 9.5 cm 95 mm 0.31 ft	8.66 in 22 cm 220 mm 0.72 ft
Case Weight with Stand	24.8 kg 55 lbs	12.4 kg 27 lbs
Case Color	Black	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) DVB-T2 DVB-S2 DVB-C DVB-T DVB-S
Built-in Camera	No	No
Network	Wi-Fi 802.11b (IEEE 802.11b-1999) 802.11g (IEEE 802.11g-2003) 802.11n (IEEE 802.11n-2009) 802.11n 5GHz Wi-Fi Direct DLNA 1.5	LAN Wi-Fi 802.11b (IEEE 802.11b-1999) 802.11g (IEEE 802.11g-2003) 802.11n (IEEE 802.11n-2009) Bluetooth Wi-Fi Direct DLNA
Connectivity	2 x HDMI 2.0 (b; HDCP 2.2) 1 x HDMI 2.0 (b; HDCP 2.2; MHL; ARC) 1 x RCA Video In 1 x 3.5 mm Audio Out 1 x Optical Audio Out 1 x Satellite In 2 x USB 2.0 1 x Antenna (RF) 1 x Ethernet RJ45 1 x CI+ 1.4	3 x HDMI 2.0 (ARC; CEC; MHL) 1 x Satellite In (Main; F-type female) 1 x S/PDIF 1 x Antenna (RF) (female) 1 x 3.5 mm Audio Out 1 x AV Composite In (Video + L/R) 2 x USB 2.0 1 x CI+ 1 x Ethernet RJ45
Audio
Audio Speakers	4 x 15W	2 x 8W
Features
OS	Android 9.0 Pie	Android 9.0 Pie
Cool Features	HDCP (High-bandwidth Digital Content Protection) 2.2 Picture noise reduction Wide Color Gamut Game mode / Film Mode / Sports mode Google Assistant	IPQ Engine Mega Dynamic Contrast Picture-in-Picture UHD Upscaling UHD Color Extender Noise Reduction Dimming Pro Wide Color Gamut HDCP (High-bandwidth Digital Content Protection) 2.2
Extra Features	Remote control - RC602S6+RC802N6
Ergonomics
Case Width	57.01 in 144.8 cm 1448 mm 4.75 ft	48.9 in 124.2 cm 1242 mm 4.07 ft
Case Height	33.9 in 86.1 cm 861 mm 2.82 ft	28.74 in 73 cm 730 mm 2.4 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	400 x 200	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	60 Hz
Screen Interpolation Technology	Picture Performance Index	Picture Performance Index
Screen Interpolation Value	2000	1200
Screen Interpolation Measurement Unit	PPI	PPI
Accessories
Extras		Remote control - RC802N6
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 % - 25 %	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 65EC780

TCL 55EP660