Comparison between Sony KD-49XF8577 vs Sony XBR-49X850B

General Info
Model Number	Sony KD-49XF8577	Sony XBR-49X850B

Price	Check on Amazon	Check on Amazon
Type	TV	TV
Year	2018	2014
Brand	Sony	Sony
Model Series	XF85	X85B
Model Number	KD-49XF8577	XBR-49X850B
Display
Screen Size Class	49" (inches)	49" (inches)
Diagonal Size	48.46 in 123.1 cm 1231 mm 4.04 ft	48.46 in 123.1 cm 1231 mm 4.04 ft
Screen Width	42.24 in 107.3 cm 1072.91 mm 3.52 ft	42.24 in 107.3 cm 1072.91 mm 3.52 ft
Screen Height	23.76 in 60.4 cm 603.512 mm 1.98 ft	23.76 in 60.4 cm 603.512 mm 1.98 ft
Display Manufacturer		LG Display
Display Type	VA	IPS
Display Bit Depth	10 bits	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	0.279 mm	0.279 mm
Screen Pixel Density	91 ppi	91 ppi
Screen-to-Body Ratio	91.57 %	89.14 %
Backlight Source	Edge LED	Edge LED
DCI P3	85%
Rec.2020	65
Screen Brightness	300 cd/m²	550 cd/m²
Max Screen Brightness	450 cd/m²
Static Screen Contrast	3500 : 1
Dynamic Screen Contrast		1000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag	13 ms
Display Coating	Glossy
HDR	HDR10 HLG (Hybrid Log Gamma)	HDR10 HLG (Hybrid Log Gamma)
3D	No	Yes
Size, weight, color
Case Depth	2.28 in 5.8 cm 58 mm 0.19 ft	2.61 in 6.6 cm 66.3 mm 0.22 ft
Case Weight	13.2 kg 29 lbs	18.1 kg 40 lbs
Case Width with Stand	43.23 in 109.8 cm 1098 mm 3.6 ft	43.07 in 109.4 cm 1094 mm 3.59 ft
Case Height with Stand	27.68 in 70.3 cm 703 mm 2.31 ft	27.72 in 70.4 cm 704 mm 2.31 ft
Case Depth with Stand	10.98 in 27.9 cm 279 mm 0.92 ft	8.86 in 22.5 cm 225 mm 0.74 ft
Case Weight with Stand	13.7 kg 30 lbs	18.6 kg 41 lbs
Case Color	Silver	Black
Hardware
System on Chip or SoC	MediaTek MT5891
CPU	ARM Cortex-A53
CPU Cores	4	2
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-S2 DVB-S DVB-C	Analog (NTSC/PAL/SECAM) ATSC Clear QAM
Built-in Camera	No	Yes
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 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 Wi-Fi Direct DLNA
Connectivity	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)	4 x HDMI 2.0 (ARC; CEC; MHL) 1 x Satellite In (Main; F-type female) 1 x AV Component In (YPbPr + L/R) 1 x 3.5 mm Audio Out 1 x Optical Audio Out 1 x AV Composite In (Video + L/R) 3 x USB 2.0 1 x RS232 (C) 1 x Ethernet RJ45 1 x IR Out
Audio
Audio Speakers	2 x 10W	2 x 10W
Features
OS	Android 7.0 Nougat Android 8.0 Oreo	Smart TV.3
Cool Features	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	BRAVIA Sync (HDMI-CEC) ClearAudio+ S-Force Front Surround sound Dynamic Backlight Control HDCP (High-bandwidth Digital Content Protection) X-tended Dynamic Range Social Viewing Frame Dimming Clear Phase Speaker 4K X-Reality Pro Triluminos Display Light sensor Backlight OFF mode NFC
Ergonomics
Case Width	43.23 in 109.8 cm 1098 mm 3.6 ft	43.07 in 109.4 cm 1094 mm 3.59 ft
Case Height	25.35 in 64.4 cm 644 mm 2.11 ft	26.14 in 66.4 cm 664 mm 2.18 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	200 x 200	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	120 Hz	60 Hz
Screen Interpolation Technology	Motionflow XR	Motionflow XR
Screen Interpolation Value	1000	240
Screen Interpolation Measurement Unit	XR	XR
Accessories
Extras	IR extender cable	2 x 3D active glasses - TDG-BT500P IR extender cable Remote control - RM-YD102; RMF-YD003
Certificates and Standards
Licenses	ENERGY STAR UL/cUL	UL/cUL
Usage and Storage Requirements
Safe Operating Temperature Level	0 °C - 40 °C 32 °F - 104 °F	0 °C - 40 °C 32 °F - 104 °F
Safe Operating Humidity Level	10 % - 80 %	10 % - 80 %
Internal Storage Temperature		-15 °C - 45 °C 5 °F - 113 °F
Internal Storage Humidity		10 % - 90 %

Sony KD-49XF8577

Sony XBR-49X850B