Comparison between TCL 55X815 vs TCL 65EC780

General Info
Model Number	TCL 55X815	TCL 65EC780

Price	Check on Amazon	Check on Amazon
Type	TV	TV
Year	2019	2019
Brand	TCL	TCL
Model Series	X8	EC78
Model Number	55X815	65EC780
Alias	55X815X1	65EC780X1
Display
Screen Size Class	55" (inches)	65" (inches)
Diagonal Size	54.65 in 138.8 cm 1388 mm 4.55 ft	64.53 in 163.9 cm 1639 mm 5.38 ft
Screen Width	47.62 in 121 cm 1209.6 mm 3.97 ft	56.24 in 142.8 cm 1428.48 mm 4.69 ft
Screen Height	26.79 in 68 cm 680.4 mm 2.23 ft	31.63 in 80.4 cm 803.52 mm 2.64 ft
Display Type	VA	VA
Display Bit Depth	10 bits	10 bits
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	0.372 mm
Screen Pixel Density	80 ppi	68 ppi
Screen-to-Body Ratio	90.33 %	92.07 %
Backlight Source	Direct LED (Full-Array Local Dimming)	Edge LED
Screen Brightness		400 cd/m²
Max Screen Brightness	500 cd/m²
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Display Coating	Glossy
HDR	HDR10 HDR10+ HLG (Hybrid Log Gamma) Dolby Vision	HDR10+ HDR Pro Dolby Vision
3D	No	No
Size, weight, color
Case Depth	2.06 in 5.2 cm 52.2 mm 0.17 ft	13.27 in 33.7 cm 337 mm 1.11 ft
Case Weight	44 kg 97 lbs	27.4 kg 60 lbs
Case Width with Stand	0.79 in 2 cm 20 mm 0.07 ft	57.01 in 144.8 cm 1448 mm 4.75 ft
Case Height with Stand	31.26 in 79.4 cm 794 mm 2.6 ft	36.65 in 93.1 cm 931 mm 3.05 ft
Case Depth with Stand	12.01 in 30.5 cm 305 mm 1 ft	3.74 in 9.5 cm 95 mm 0.31 ft
Case Weight with Stand	26.5 kg 58 lbs	24.8 kg 55 lbs
Case Color	Black	Black
Hardware
CPU Cores	4
TV Tuner	Analog (NTSC/PAL/SECAM) DVB-T DVB-T2 DVB-S DVB-S2 DVB-C	Analog (NTSC/PAL/SECAM) DVB-T DVB-T2 DVB-C DVB-S DVB-S2
Built-in Camera	No	No
Network	LAN Wi-Fi 802.11g (IEEE 802.11g-2003) 802.11n (IEEE 802.11n-2009) 802.11n 5GHz 802.11ac (IEEE 802.11ac) Bluetooth Wi-Fi Direct DLNA 1.5 Wi-Fi Display	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; MHL; DVI; CEC) 1 x AV Component In (YPbPr + L/R) (CVBS) 1 x 3.5 mm Audio Out 1 x CI+ 1.4 2 x Antenna (RF) 1 x Optical Audio Out 2 x USB 2.0 (Type-A) 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 15W
Built-in Subwoofer	1 x 10
Features
OS	Android 9.0 Pie	Android 9.0 Pie
Cool Features	IPQ Engine 2.0 Mega Dynamic Contrast Quantum Dot Color UHD Upscaling UHD Premium Color Extender Noise Reduction Dimming Ultra 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	49.41 in 125.5 cm 1255 mm 4.12 ft	57.01 in 144.8 cm 1448 mm 4.75 ft
Case Height	28.58 in 72.6 cm 726 mm 2.38 ft	33.9 in 86.1 cm 861 mm 2.82 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	200x250	400 x 200
Removable VESA Stand	No	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	2600	2000
Screen Interpolation Measurement Unit	PPI	PPI
Accessories
Extras	RC602S6 remote control RC802N6 remote control
Certificates and Standards
Usage and Storage Requirements
Safe Operating Temperature Level		5 °C - 35 °C 41 °F - 95 °F
Safe Operating Humidity Level		20 % - 25 %
Internal Storage Temperature		-15 °C - 45 °C 5 °F - 113 °F
Internal Storage Humidity		10 % - 90 %

TCL 55X815

TCL 65EC780