Comparison between Grundig 55VLX7730 vs Sony KD-55XF8577

General Info
Model Number	Grundig 55VLX7730	Sony KD-55XF8577

Price	Check on Amazon	Check on Amazon
Type	TV	TV
Year	2017	2018
Brand	Grundig	Sony
Model Series	7730	XF85
Model Number	55VLX7730	KD-55XF8577
Alias	55 VLX 7730 SP
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	47.63 in 121 cm 1209.75 mm 3.97 ft
Screen Height	26.79 in 68 cm 680.4 mm 2.23 ft	26.79 in 68 cm 680.483 mm 2.23 ft
Display Type		IPS
Display Bit Depth	10 bits (8 bits + FRC)	10 bits
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	81 ppi
Screen-to-Body Ratio	89.99 %	93.79 %
Backlight Source	Direct LED	Edge LED
DCI P3		95%
Screen Brightness		500 cd/m²
Max Screen Brightness		700 cd/m²
Static Screen Contrast		1000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag		28 ms
Display Minimum Response Time		9 ms
Display Average Response Time		13 ms
Display Maximum Response Time		32 ms
HDR	HDR10	HDR10 HLG (Hybrid Log Gamma)
3D	No	No
Size, weight, color
Case Depth	3.09 in 7.9 cm 78.6 mm 0.26 ft	2.05 in 5.2 cm 52 mm 0.17 ft
Case Weight		19.1 kg 42 lbs
Case Width with Stand	49.06 in 124.6 cm 1246 mm 4.09 ft	48.46 in 123.1 cm 1231 mm 4.04 ft
Case Height with Stand	30.63 in 77.8 cm 778 mm 2.55 ft	30.55 in 77.6 cm 776 mm 2.55 ft
Case Depth with Stand	8.98 in 22.8 cm 228 mm 0.75 ft	12.4 in 31.5 cm 315 mm 1.03 ft
Case Weight with Stand		20 kg 44 lbs
Case Color	Black	Silver
Hardware
System on Chip or SoC		MediaTek MT5891
CPU		ARM Cortex-A53
CPU Cores	2	4
CPU Frequency		1100
GPU		ARM Mali-T860 MP2
GPU Cores		2
GPU Frequency		700
RAM Memory Size		2
Internal Storage		16
TV Tuner	Analog (NTSC/PAL/SECAM) DVB-T DVB-T2 DVB-C DVB-S DVB-S2	Analog (NTSC/PAL/SECAM) DVB-T DVB-T2 DVB-S2 DVB-S DVB-C
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	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	1 x Ethernet RJ45 4 x HDMI 2.0 (ARC; CEC; MHL) 1 x SCART 1 x 3.5 mm Audio Out 1 x S/PDIF 1 x Satellite In (Main; F-type female) 2 x USB 2.0 1 x Antenna (RF) (female) 1 x USB 3.0 1 x CI+ 1.3	1 x Ethernet RJ45 4 x HDMI 2.0 (ARC; CEC) 1 x CI+ 1.3 1 x Satellite In (Sub; F-type female) 1 x Optical Audio Out 1 x IR Out 1 x AV Composite In (Video + L/R) 1 x Satellite In (Main; F-type female) 2 x USB 2.0 (max 0.5 A) 1 x 3.5 mm Audio Out 1 x USB 3.0 (max 0.9 A) 1 x Antenna (RF) (female)
Audio
Audio Speakers	2 x 10W	2 x 10W
Features
OS	Smart Inter@ctive TV 4.0 Plus	Android 7.0 Nougat Android 8.0 Oreo
Cool Features	Motion Picture Improvement Perfect Picture Plus (4.0) PVR HDCP (High-bandwidth Digital Content Protection) 2.2 Micro Dimming Engine	ClearAudio+ Triluminos Display Super Bit mapping 4K HDR Voice command Clear Phase Speaker Light sensor Dynamic Backlight Control Frame Dimming S-Force Front Surround sound Live Color Technology Dynamic Contrast Enhancer DSEE (Digital Sound Enhancement Engine) 4K X-Reality Pro Object-based HDR remaster HDCP (High-bandwidth Digital Content Protection) 2.2 BRAVIA Sync (HDMI-CEC) Image Processor - X1
Ergonomics
Case Width	49.06 in 124.6 cm 1246 mm 4.09 ft	48.46 in 123.1 cm 1231 mm 4.04 ft
Case Height	28.9 in 73.4 cm 734 mm 2.41 ft	28.07 in 71.3 cm 713 mm 2.34 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	300 x 300	300 x 300
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	120 Hz
Screen Interpolation Technology	Video Perfection Index	Motionflow XR
Screen Interpolation Value	1300	1000
Screen Interpolation Measurement Unit	VPI	XR
Accessories
Extras		IR extender cable
Certificates and Standards
Licenses		ENERGY STAR UL/cUL
Usage and Storage Requirements
Safe Operating Temperature Level		0 °C - 40 °C 32 °F - 104 °F
Safe Operating Humidity Level		10 % - 80 %
Internal Storage Temperature		-20 °C - 60 °C -4 °F - 140 °F
Internal Storage Humidity		5 % - 85 %

Grundig 55VLX7730

Sony KD-55XF8577