Comparison between TCL 55EP663 vs TCL 55EC780

General Info
Model Number	TCL 55EP663	TCL 55EC780

Price	Check on Amazon	Check on Amazon
Type	TV	TV
Year	2019	2019
Brand	TCL	TCL
Model Series	EP66	EC78
Model Number	55EP663	55EC780
Alias		55EC780X1
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	No
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	90.77 %	90.77 %
Backlight Source	Direct LED	Edge LED
Screen Brightness	260 cd/m²	400 cd/m²
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
HDR	HDR10 HLG (Hybrid Log Gamma)	HDR10+ HDR Pro Dolby Vision
3D	No	No
Size, weight, color
Case Depth	3.07 in 7.8 cm 78 mm 0.26 ft	3.07 in 7.8 cm 78 mm 0.26 ft
Case Weight	12.2 kg 27 lbs	12.2 kg 27 lbs
Case Width with Stand	48.9 in 124.2 cm 1242 mm 4.07 ft	48.9 in 124.2 cm 1242 mm 4.07 ft
Case Height with Stand	30.75 in 78.1 cm 781 mm 2.56 ft	30.75 in 78.1 cm 781 mm 2.56 ft
Case Depth with Stand	8.66 in 22 cm 220 mm 0.72 ft	8.66 in 22 cm 220 mm 0.72 ft
Case Weight with Stand	12.4 kg 27 lbs	12.4 kg 27 lbs
Case Color	Black	Black
Hardware
CPU Cores	4
Internal Storage	16
TV Tuner	Analog (NTSC/PAL/SECAM) DVB-T2 DVB-S2 DVB-C DVB-T DVB-S	Analog (NTSC/PAL/SECAM) DVB-T DVB-T2 DVB-C DVB-S DVB-S2
Built-in Camera	No	No
Network	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	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
Connectivity	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	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
Audio
Audio Speakers	2 x 8W	4 x 13W
Features
OS	Android 9.0 Pie	Android 9.0 Pie
Cool Features	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	HDCP (High-bandwidth Digital Content Protection) 2.2 Picture noise reduction Wide Color Gamut Game mode / Film Mode / Sports mode Google Assistant
Extra Features		Remote control - RC602S6+RC802N6
Ergonomics
Case Width	48.9 in 124.2 cm 1242 mm 4.07 ft	48.9 in 124.2 cm 1242 mm 4.07 ft
Case Height	28.74 in 73 cm 730 mm 2.4 ft	28.74 in 73 cm 730 mm 2.4 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	200 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	1200	2000
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 % - 80 %	20 % - 25 %
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 55EP663

TCL 55EC780