Comparison between Hitachi 55HAK6351 vs Hitachi 65HK5600

General Info
Model Number	Hitachi 55HAK6351	Hitachi 65HK5600

Price	Check on Amazon	Check on Amazon
Type	TV	TV
Year	2021	2021
Brand	Hitachi	Hitachi
Model Number	55HAK6351	65HK5600
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 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	0.372 mm
Screen Pixel Density	80 ppi	68 ppi
Screen-to-Body Ratio	93.8 %	94.49 %
Backlight Source	Direct LED	Direct LED
Screen Brightness	350 cd/m²
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
HDR	HDR10 HLG (Hybrid Log Gamma) Dolby Vision	HLG (Hybrid Log Gamma) HDR HDR10
3D	No	No
Size, weight, color
Case Depth	3.23 in 8.2 cm 82 mm 0.27 ft	2.83 in 7.2 cm 72 mm 0.24 ft
Case Width with Stand	48.58 in 123.4 cm 1234 mm 4.05 ft	57.2 in 145.3 cm 1453 mm 4.77 ft
Case Height with Stand	29.25 in 74.3 cm 743 mm 2.44 ft	34.84 in 88.5 cm 885 mm 2.9 ft
Case Depth with Stand	9.49 in 24.1 cm 241 mm 0.79 ft	9.88 in 25.1 cm 251 mm 0.82 ft
Case Weight with Stand	13.74 kg 30 lbs	20.69 kg 46 lbs
Case Color	Black	Black
Hardware
CPU Cores	4	4
TV Tuner	Analog (NTSC/PAL/SECAM) DVB-T DVB-T2 DVB-C DVB-S DVB-S2	DVB-T DVB-T2 DVB-C DVB-S DVB-S2 Analog (NTSC/PAL/SECAM)
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 Bluetooth 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) Bluetooth Wi-Fi Direct DLNA
Connectivity	3 x HDMI 2.0 (ARC; CEC) 1 x Satellite In (F-type female) 1 x 3.5 mm Audio Out 1 x CI+ 1 x Antenna (RF) 1 x Optical Audio Out 2 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 AV Component In (YPbPr + L/R) (via PC input) 1 x 3.5 mm Audio Out 1 x Optical Audio Out 1 x AV Composite In (Video + L/R) 2 x USB 2.0 1 x Antenna (RF) (female) 1 x Ethernet RJ45 1 x CI+ 1.4
Audio
Audio Speakers	2 x 10W	2 x 12W
Features
OS	Android TV	Android 10
Cool Features	Amazon Prime Video Chromecast built-in Micro Dimming Super Resolution Netflix Google Assistant 4K Upscaling USB Recording (PVR Ready) Alexa YouTube	Chromecast Built-in Google Assistant YouTube Netflix SmartTVue Picture Master Pro Micro Dimming 4K Upscaler Super Resolution Amazon Prime Video USB recording (PVR ready)
Ergonomics
Case Width	48.58 in 123.4 cm 1234 mm 4.05 ft	57.2 in 145.3 cm 1453 mm 4.77 ft
Case Height	27.99 in 71.1 cm 711 mm 2.33 ft	32.91 in 83.6 cm 836 mm 2.74 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	200 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	50 Hz / 60 Hz	50 Hz / 60 Hz
Screen Interpolation Measurement Unit	NULL	NULL
Accessories
Extras	Remote control	Remote control
Certificates and Standards
Licenses		CE RoHS
Usage and Storage Requirements
Safe Operating Temperature Level		0 °C - 40 °C 32 °F - 104 °F

Hitachi 55HAK6351

Hitachi 65HK5600