Comparison between Hisense H55U8B vs Hisense H55A6550

General Info
Model Number	Hisense H55U8B	Hisense H55A6550

Price	Check on Amazon	Check on Amazon
Type	TV	TV
Year	2019	2018
Brand	Hisense	Hisense
Model Series	U8B	A6550
Model Number	H55U8B	H55A6550
Alias		H55A6570
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 (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	80 ppi	80 ppi
Screen-to-Body Ratio		93.12 %
Backlight Source	Edge LED	Direct LED
Rec.2020	74
Screen Brightness	450 cd/m²
Static Screen Contrast	4000 : 1
Screen Horizontal Viewing Angle	178 °	176 °
Screen Vertical Viewing Angle	178 °	176 °
Screen Input Lag	50 ms	50 ms
HDR	HDR10 HLG (Hybrid Log Gamma) Dolby Vision HDR10+	HDR10 HLG (Hybrid Log Gamma)
3D	No	No
Size, weight, color
Case Depth		2.6 in 6.6 cm 66 mm 0.22 ft
Case Weight	18.6 kg 41 lbs	16.3 kg 36 lbs
Case Width with Stand	48.43 in 123 cm 1230 mm 4.04 ft	48.46 in 123.1 cm 1231 mm 4.04 ft
Case Height with Stand	30.67 in 77.9 cm 779 mm 2.56 ft	30.04 in 76.3 cm 763 mm 2.5 ft
Case Depth with Stand	11.65 in 29.6 cm 296 mm 0.97 ft	9.61 in 24.4 cm 244 mm 0.8 ft
Case Weight with Stand	20.6 kg 45 lbs	19.8 kg 44 lbs
Case Color	Gray	Black, Silver
Hardware
System on Chip or SoC	MStar MSD6886	MediaTek MT5658
CPU Cores	4	4
TV Tuner	Analog (NTSC/PAL/SECAM) DVB-T DVB-T2 DVB-C DVB-S2 DVB-S	Analog (NTSC/PAL/SECAM) DVB-T DVB-T2 DVB-C DVB-S2 DVB-S DVB-T2 HD
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) Bluetooth	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
Connectivity	4 x HDMI 2.0 (ARC; CEC) 1 x Satellite In (Main; F-type female) 1 x S/PDIF 1 x CI+ 1.4 1 x Antenna (RF) (female) 1 x AV Composite In (Video + L/R) 2 x USB 2.0 (max 0.5 A) 1 x Ethernet RJ45	1 x Ethernet RJ45 1 x HDMI 1.4 1 x Satellite In (Main; F-type female) 1 x S/PDIF 1 x AV Composite In (Video + L/R) 2 x HDMI 2.0 (ARC; CEC) 1 x USB 2.0 (max 0.5 A) 1 x Antenna (RF) (female) 1 x USB 3.0 (max 1 A) 1 x CI+ 1.3
Audio
Audio Speakers	2 x 10W	2 x 10W
Features
OS	VIDAA U3.0	VIDAA U2.5
Cool Features	HDCP (High-bandwidth Digital Content Protection) 2.2 Hi-View Engine Plus PVR Ultra Motion Ultra Color Local Dimming 4K Upscaling Wide Color Gamut Backlight Scanning	HDCP (High-bandwidth Digital Content Protection) 2.2 Noise Reduction PVR Super Contrast Super Motion Precision Color 4K Upscaling Depth Enhancer
Ergonomics
Case Width		48.46 in 123.1 cm 1231 mm 4.04 ft
Case Height		28.27 in 71.8 cm 718 mm 2.36 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	400 x 200	400 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	120 Hz	60 Hz
Screen Interpolation Technology	Picture Criteria Index	Picture Criteria Index
Screen Interpolation Value	2800	1800
Screen Interpolation Measurement Unit	PCI	PCI
Accessories
Extras	Remote control - ERF6A62	Remote control - EN3Y39H
Certificates and Standards
Licenses	RoHS WEEE	RoHS WEEE
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 %

Hisense H55U8B

Hisense H55A6550