Comparison between Sony KD-55AF8 vs Sony KD-55AF9

General Info
Model Number	Sony KD-55AF8	Sony KD-55AF9

Price	Check on Amazon	Check on Amazon
Type	TV	TV
Year	2018	2018
Brand	Sony	Sony
Model Series	AF8	AF9
Model Number	KD-55AF8	KD-55AF9
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	LG Display
Display Type	OLED	OLED
Display Bit Depth	10 bits	10 bits
Frame Rate Control	No	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	94.31 %	94.29 %
Backlight Source	Edge LED	Direct LED
DCI P3	99%	99%
Rec.2020	76	75
Screen Brightness	300 cd/m²	400 cd/m²
Max Screen Brightness	800 cd/m²	800 cd/m²
Static Screen Contrast		1200 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag	21 ms	20 ms
Display Minimum Response Time	1 ms	1 ms
Display Average Response Time		13 ms
Display Maximum Response Time		32 ms
Display Coating	Glossy	Glossy
HDR	Dolby Vision HDR10 HLG (Hybrid Log Gamma)	Dolby Vision HDR10 HLG (Hybrid Log Gamma)
3D	No	No
Size, weight, color
Case Depth	2.17 in 5.5 cm 55 mm 0.18 ft	3.39 in 8.6 cm 86.1 mm 0.28 ft
Case Weight	18.7 kg 41 lbs	23.8 kg 52 lbs
Case Width with Stand	48.27 in 122.6 cm 1226 mm 4.02 ft	48.35 in 122.8 cm 1228 mm 4.03 ft
Case Height with Stand	28.23 in 71.7 cm 717 mm 2.35 ft	27.91 in 70.9 cm 709 mm 2.33 ft
Case Depth with Stand	10.04 in 25.5 cm 255 mm 0.84 ft	12.6 in 32 cm 320 mm 1.05 ft
Case Weight with Stand	22.2 kg 49 lbs	30 kg 66 lbs
Case Color	Black	Black
Hardware
System on Chip or SoC	MediaTek MT5891	MediaTek MT5893
CPU	ARM Cortex-A53	ARM Cortex-A73
CPU Cores	4	4
CPU Frequency	1100	1500
GPU	ARM Mali-T860 MP2	ARM Mali-G71
GPU Cores	2	2
GPU Frequency	700
RAM Memory Size	2	4
Internal Storage	16	16
TV Tuner	Analog (NTSC/PAL/SECAM) ATSC Clear QAM	Analog (NTSC/PAL/SECAM) DVB-T DVB-T2 DVB-S DVB-S2 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 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 802.11ac (IEEE 802.11ac) Bluetooth 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 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)	1 x Ethernet RJ45 4 x HDMI 2.0 (eARC; 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 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)
Audio
Audio Speakers	2 x 10W	2 x 13W
Built-in Subwoofer	1 x 10	2 x 10
Features
OS	Android 7.0 Nougat Android 8.0 Oreo	Android 8.0 Oreo
Cool Features	Voice command ClearAudio+ Super Bit mapping 4K HDR S-Force Front Surround sound S-Force Front Surround sound Clear Phase Speaker Live Color Technology Dynamic Contrast Enhancer HDCP (High-bandwidth Digital Content Protection) 2.2 PVR Object-based HDR remaster Triluminos Display Dual Database Processing DSEE (Digital Sound Enhancement Engine) 4K X-Reality Pro Precision Color Mapping Image Processor - X1 Extreme BRAVIA Sync (HDMI-CEC) Light sensor	S-Force Front Surround sound ClearAudio+ PVR Precision Color Mapping Triluminos Display S-Force Front Surround sound Clear Phase Speaker Live Color Technology Dynamic Contrast Enhancer HDCP (High-bandwidth Digital Content Protection) 2.2 Pixel Contrast Booster Object-based HDR remaster Super Bit mapping 4K HDR Dual Database Processing Voice command DSEE (Digital Sound Enhancement Engine) 4K X-Reality Pro Object-based Super Resolution Image Processor - X1 Ultimate BRAVIA Sync (HDMI-CEC) Light sensor
Ergonomics
Case Width	48.27 in 122.6 cm 1226 mm 4.02 ft	48.35 in 122.8 cm 1228 mm 4.03 ft
Case Height	28.03 in 71.2 cm 712 mm 2.34 ft	27.99 in 71.1 cm 711 mm 2.33 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	200 x 300	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	120 Hz	120 Hz
Screen Interpolation Technology		Picture Performance Index
Screen Interpolation Value		640
Screen Interpolation Measurement Unit		PPI
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
Internal Storage Humidity		5 % - 85 %
Max Operating Altitude	2000

Sony KD-55AF8

Sony KD-55AF9