Comparison between Sony KD-55XG8577 vs Sony KD-55AG9

General Info
Model Number	Sony KD-55XG8577	Sony KD-55AG9

Price	Check on Amazon	Check on Amazon
Type	TV	TV
Year	2019	2019
Brand	Sony	Sony
Model Series	XG85	AG9
Model Number	KD-55XG8577	KD-55AG9
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	47.63 in 121 cm 1209.75 mm 3.97 ft	47.63 in 121 cm 1209.75 mm 3.97 ft
Screen Height	26.79 in 68 cm 680.483 mm 2.23 ft	26.79 in 68 cm 680.483 mm 2.23 ft
Display Manufacturer		LG Display
Display Type	IPS	OLED
Display Bit Depth	10 bits (8 bits + FRC)	10 bits
Frame Rate Control	Yes	No
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	81 ppi	81 ppi
Screen-to-Body Ratio	93.79 %	94.57 %
Backlight Source	Edge LED	W-LED
DCI P3	95%	99%
Rec.2020	70	75
Screen Brightness	350 cd/m²	300 cd/m²
Max Screen Brightness	600 cd/m²	700 cd/m²
Static Screen Contrast	1200 : 1	1000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag	14 ms	25 ms
Display Minimum Response Time		1 ms
Display Average Response Time		5 ms
HDR	Dolby Vision HDR10 HLG (Hybrid Log Gamma)	Dolby Vision HDR10 HLG (Hybrid Log Gamma)
3D	No	No
Size, weight, color
Case Depth	2.05 in 5.2 cm 52 mm 0.17 ft	1.57 in 4 cm 40 mm 0.13 ft
Case Weight	18.7 kg 41 lbs	18.7 kg 41 lbs
Case Width with Stand	48.46 in 123.1 cm 1231 mm 4.04 ft	48.27 in 122.6 cm 1226 mm 4.02 ft
Case Height with Stand	30.55 in 77.6 cm 776 mm 2.55 ft	28.11 in 71.4 cm 714 mm 2.34 ft
Case Depth with Stand	12.4 in 31.5 cm 315 mm 1.03 ft	10.04 in 25.5 cm 255 mm 0.84 ft
Case Weight with Stand	19.7 kg 43 lbs	22.3 kg 49 lbs
Case Color	Silver	Black
Hardware
System on Chip or SoC	MediaTek MT5893	MediaTek MT5893
CPU	ARM Cortex-A73	ARM Cortex-A73
CPU Cores	4	4
CPU Frequency	1500	1500
GPU	ARM Mali-G71	ARM Mali-G71
GPU Cores	2	2
GPU Frequency	700	700
RAM Memory Size	3	2.5
Internal Storage	16	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-C DVB-S DVB-S2
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) Wi-Fi Direct DLNA Bluetooth 4.2	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 Bluetooth 4.2
Connectivity	1 x Ethernet RJ45 4 x HDMI 2.0 (eARC; CEC) 1 x Antenna (RF) (female) 1 x Satellite In (Sub; F-type female) 1 x AV Component In (YPbPr + L/R) 1 x CI+ 1.4 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 IR Out 1 x Optical Audio Out 1 x USB 3.0 (max 0.9 A) 1 x 3.5 mm Audio Out	1 x Ethernet RJ45 4 x HDMI 2.0 (eARC; CEC) 1 x IR Out 1 x Satellite In (Sub; F-type female) 1 x Optical Audio Out 1 x AV Composite In 3.5 mm jack 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 20W
Built-in Subwoofer		2 x 10
Features
OS	Android 8.0 Oreo Android 9.0 Pie	Android 8.0 Oreo Android 9.0 Pie
Cool Features	Voice command ClearAudio+ S-Force Front Surround sound PVR Super Bit mapping 4K HDR Clear Phase Speaker Image Processor - X1 Dual database processing Dynamic Contrast Enhancer Object-based HDR remaster Light sensor Triluminos Display Dynamic Backlight Control DSEE (Digital Sound Enhancement Engine) 4K X-Reality Pro Live Color Technology Frame Dimming BRAVIA Sync (HDMI-CEC) HDCP (High-bandwidth Digital Content Protection) 2.3	Voice command ClearAudio+ S-Force Front Surround sound PVR Super Bit mapping 4K HDR Clear Phase Speaker Live Color Technology Dynamic Contrast Enhancer HDCP (High-bandwidth Digital Content Protection) 2.3 Precision Color Mapping Object-based HDR remaster Triluminos Display Dual Database Processing DSEE (Digital Sound Enhancement Engine) 4K X-Reality Pro Pixel Contrast Booster Image Processor - X1 Ultimate BRAVIA Sync (HDMI-CEC) Light sensor
Extra Features		Anti-theft stand lock slot - Kensington
Ergonomics
Case Width	48.46 in 123.1 cm 1231 mm 4.04 ft	48.27 in 122.6 cm 1226 mm 4.02 ft
Case Height	28.07 in 71.3 cm 713 mm 2.34 ft	27.95 in 71 cm 710 mm 2.33 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	200 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
Forward Tilt		10 °
Backward Tilt		29 °
Frequency and Interpolation
Vertical Digital Frequency	120 Hz	120 Hz
Screen Interpolation Technology	Motionflow XR
Screen Interpolation Value	1000
Screen Interpolation Measurement Unit	XR
Accessories
Extras	IR extender cable	IR extender cable
Certificates and Standards
Licenses	ENERGY STAR UL/cUL	ENERGY STAR 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		-20 °C - 60 °C -4 °F - 140 °F

Sony KD-55XG8577

Sony KD-55AG9