Comparison between Hisense 55K321 vs Hisense 55EC591

General Info
Model Number	Hisense 55K321	Hisense 55EC591

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Type	TV	TV
Year	2015	2015
Brand	Hisense	Hisense
Model Series	K321	EC591
Model Number	55K321	55EC591
Alias	55K321ST2 LTDN55K321UWTSEU	UB55EC591UWTSEU
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 Manufacturer	Hisense
Display Type	VA	VA
Display Bit Depth	10 bits (8 bits + FRC)	8 bits
Frame Rate Control	Yes
Max Number of Colors	1073741824	16777216
Bits	30	24
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	92.64 %	92.64 %
Backlight Source	Edge LED	Edge LED
DCI P3	83%
Screen Brightness	330 cd/m²	200 cd/m²
Static Screen Contrast	3500 : 1	4000 : 1
Screen Horizontal Viewing Angle	170 °	170 °
Screen Vertical Viewing Angle	150 °	160 °
Screen Input Lag	54 ms
Display Minimum Response Time	6.5 ms	6.5 ms
3D	No	No
Size, weight, color
Case Depth	3.27 in 8.3 cm 83 mm 0.27 ft	3.27 in 8.3 cm 83 mm 0.27 ft
Case Weight		16.5 kg 36 lbs
Case Width with Stand	48.78 in 123.9 cm 1239 mm 4.06 ft	48.78 in 123.9 cm 1239 mm 4.06 ft
Case Height with Stand	33.78 in 85.8 cm 858 mm 2.81 ft	30.35 in 77.1 cm 771 mm 2.53 ft
Case Depth with Stand	6.97 in 17.7 cm 177 mm 0.58 ft	10.31 in 26.2 cm 262 mm 0.86 ft
Case Weight with Stand	17.3 kg 38 lbs	17.3 kg 38 lbs
Case Color	Silver	Black
Hardware
System on Chip or SoC	MediaTek MT5657MCEJ
CPU Cores	4	4
TV Tuner	Analog (NTSC/PAL/SECAM) DVB-S2 DVB-T DVB-T2 DVB-S 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 802.11b (IEEE 802.11b-1999) 802.11g (IEEE 802.11g-2003) 802.11n (IEEE 802.11n-2009) 802.11n 5GHz	LAN Wi-Fi 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) DLNA
Connectivity	1 x Ethernet RJ45 1 x HDMI 1.4 1 x 3.5 mm Audio Out 1 x Satellite In (Main; F-type female) 1 x AV Composite In (Video + L/R) 1 x Antenna (RF) (female) 1 x SCART 3 x HDMI 2.0 (ARC; CEC; MHL) 2 x USB 2.0 (max 0.5 A) 1 x CI+ 1.3 1 x AV Component In (YPbPr + L/R) 1 x USB 3.0 (max 1 A) 1 x S/PDIF	1 x Ethernet RJ45 2 x HDMI 1.4 1 x 3.5 mm Audio Out 1 x Satellite In (Main; F-type female) 1 x AV Composite In (Video + L/R) 1 x Antenna (RF) (female) 1 x SCART 2 x HDMI 2.0 (ARC; CEC; MHL) 2 x USB 2.0 (max 0.5 A) 1 x CI+ 1.3 1 x AV Component In (YPbPr + L/R) 1 x USB 3.0 (max 1 A) 1 x S/PDIF
Audio
Audio Speakers	2 x 10W	2 x 10W
Features
OS	VIDAA 1.0	Smart TV
Cool Features	Ultra HD Upscaling HDCP (High-bandwidth Digital Content Protection) 2.2 PVR	HDCP (High-bandwidth Digital Content Protection) 2.2 PVR
Ergonomics
Case Width	48.78 in 123.9 cm 1239 mm 4.06 ft	48.78 in 123.9 cm 1239 mm 4.06 ft
Case Height	28.23 in 71.7 cm 717 mm 2.35 ft	28.23 in 71.7 cm 717 mm 2.35 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	Smart Motion Rate	Smooth Motion Rate
Screen Interpolation Value	800	400
Screen Interpolation Measurement Unit	SMR	SMR
Accessories
Extras	Remote control - EN2D27	Remote control - EN2D27
Certificates and Standards
Usage and Storage Requirements
Safe Operating Temperature Level		5 °C - 35 °C 41 °F - 95 °F
Safe Operating Humidity Level		20 % - 80 %

Hisense 55K321

Hisense 55EC591