Comparison between Samsung UN55NU6900 vs TCL 55S421

General Info
Model Number	Samsung UN55NU6900	TCL 55S421

Price	Check on Amazon	Check on Amazon
Type	TV	TV
Year	2018	2018
Brand	Samsung	TCL
Model Series	NU6900	S421
Model Number	UN55NU6900	55S421
Alias	UN55NU6900FXZA
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	47.63 in 121 cm 1209.75 mm 3.97 ft	47.62 in 121 cm 1209.6 mm 3.97 ft
Screen Height	26.79 in 68 cm 680.483 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 (8 bits + FRC)
Frame Rate Control	Yes	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	81 ppi	80 ppi
Screen-to-Body Ratio	93.82 %	91.16 %
Backlight Source	Edge LED	Direct LED
DCI P3	80%
Rec.2020	60
Screen Brightness	250 cd/m²
Max Screen Brightness	350 cd/m²
Static Screen Contrast	6000 : 1
Screen Horizontal Viewing Angle		178 °
Screen Vertical Viewing Angle		178 °
Screen Input Lag	23 ms
Display Minimum Response Time	8 ms
Display Average Response Time	15 ms
HDR	HDR10 HLG (Hybrid Log Gamma) HDR10+	HDR10
3D	No	No
Size, weight, color
Case Depth	2.3 in 5.8 cm 58.4 mm 0.19 ft	3 in 7.6 cm 76.2 mm 0.25 ft
Case Weight	7.8 kg 17 lbs	13.4 kg 29 lbs
Case Width with Stand	48.4 in 122.9 cm 1229.4 mm 4.03 ft	49.1 in 124.7 cm 1247.1 mm 4.09 ft
Case Height with Stand	29.8 in 75.7 cm 756.9 mm 2.48 ft	30.8 in 78.2 cm 782.3 mm 2.57 ft
Case Depth with Stand	9.5 in 24.1 cm 241.3 mm 0.79 ft	8.7 in 22.1 cm 221 mm 0.73 ft
Case Weight with Stand	7.9 kg 17 lbs	13.6 kg 30 lbs
Case Color	Black	Black
Hardware
CPU Cores	4	2
GPU Cores		2
TV Tuner	Analog (NTSC/PAL/SECAM) Clear QAM ATSC	Analog (NTSC/PAL/SECAM) Clear QAM ATSC
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) Wi-Fi Direct DLNA	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)
Connectivity	2 x HDMI 2.0 (ARC; CEC) 1 x Satellite In (Main; F-type female) 1 x RS232 (C) 1 x Optical Audio Out 1 x USB 2.0 1 x Ethernet RJ45	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
Audio
Audio Speakers	2 x 10W	2 x 8W
Features
OS	Tizen 4.0	Roku TV
Cool Features	DIRECTV Essential Contrast Light sensor UHD Upscaling PurColor HDCP (High-bandwidth Digital Content Protection) 2.2 Anynet+ (HDMI-CEC) Digital Clean View	4K Creative Pro HDCP (High-bandwidth Digital Content Protection) 2.2
Ergonomics
Case Width	48.4 in 122.9 cm 1229.4 mm 4.03 ft	49.1 in 124.7 cm 1247.1 mm 4.09 ft
Case Height	28.1 in 71.4 cm 713.7 mm 2.34 ft	28.5 in 72.4 cm 723.9 mm 2.38 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	Motion Rate	Clear Motion Index
Screen Interpolation Value	120	120
Screen Interpolation Measurement Unit	MR	CMI
Accessories
Extras	Remote control - TM1240A	Remote control - RC282
Certificates and Standards
Licenses	ENERGY STAR RoHS	RoHS
Usage and Storage Requirements
Safe Operating Temperature Level		5 °C - 35 °C 41 °F - 95 °F
Safe Operating Humidity Level		20 % - 80 %
Internal Storage Temperature		-15 °C - 45 °C 5 °F - 113 °F
Internal Storage Humidity		10 % - 90 %

Samsung UN55NU6900

TCL 55S421