Sony BRAVIA A1 vs Sony BRAVIA AF9

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BRAVIA A1 compared with BRAVIA AF9

	SonyBRAVIA A1	SonyBRAVIA AF9
Overview
Released
Released	2017	2018
Display
Panel
Panel	OLED	OLED
Panel detail
Panel detail	Self-emissive OLED. HDTVTest measured a 120 Hz panel on its exact 65-inch UK review sample; Sony's UK sheets do not publish one native rate for all three sizes, so no series-wide Hz is assigned.	Self-emitting OLED panel with Sony Pixel Contrast Booster and TRILUMINOS processing. A single native refresh figure is omitted because Sony's UK sheet lists accepted 1080p 120 Hz input but no native panel rate or 4K 120 Hz support.
Resolution
Resolution	3840 × 2160 (4K)	3840 × 2160 (4K)
HDR formats
HDR formats	HDR10, HLG, Dolby Vision	HDR10, HLG, Dolby Vision
HDR extras
HDR extras	Sony UK says HDR10 and HLG are supported; Dolby Vision was added later by firmware, in April 2018 in Europe rather than at the 2017 launch.	–
Picture processing
Picture processing	X1 Extreme, 4K X-Reality PRO, Dual database processing, Object-based HDR remaster and Super bit mapping 4K HDR.	X1 Ultimate, 4K X-Reality PRO, dual database processing, Object-based Super Resolution and Pixel Contrast Booster. Netflix Calibrated picture mode and CalMAN auto-calibration support are listed by Sony.
Picture modes
Picture modes	–	Vivid, Standard, Cinema, Game, Graphics, Photo, Custom and Netflix Calibrated.
Motion handling
Motion handling	Sony lists Motionflow XR without a native Hz figure on its UK sheets. HDTVTest measured 120 Hz on the 65-inch UK sample, with 650 lines of motion resolution when Motionflow was engaged.	Sony lists Motionflow XR without a numeric native refresh rate. The UK sheet accepts 1080p 100/120 Hz video signals, but only up to 4K 60 Hz.
Viewing angle
Viewing angle	HDTVTest measured a very wide 166-degree viewing cone on its 65-inch sample.	–
Sizes
Sizes
Sizes	55, 65, 77″	55, 65″
Largest size
Largest size	77″ (better)	65″
Gaming
HDMI ports
HDMI ports	4 (0 HDMI 2.1 at 4K 120 Hz+)	4 (0 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rate
Variable refresh rate	None	None
HDMI detail
HDMI detail	Four HDMI inputs with HDCP 2.2 and ARC; HDTVTest found only inputs 2 and 3 accept 4K 60 Hz at higher bit depth/chroma. These are HDMI 2.0-era inputs, not HDMI 2.1 at 4K 120 Hz.	Four HDMI inputs (one side, three bottom), HDCP 2.3 and eARC according to Sony UK's model sheets; 4K input is limited to 60 Hz.
Input lag
Input lag	HDTVTest measured 47 ms at 1080p and 31 ms at 4K on the 65-inch UK sample, in its tested modes.	27.5 ms in SDR and HDR Game mode, measured by AVForums on the KD-55AF9.
Game features
Game features	Game and Graphics picture modes; no VRR or ALLM claim in Sony's UK A1 material.	Game mode; no verified VRR or ALLM support.
Smart TV and sound
Smart TV platform
Smart TV platform	Android TV	Android TV
Processor
Processor	4K HDR Processor X1 Extreme	X1 Ultimate
Speakers
Speakers	50 W, Acoustic Surface actuators and rear subwoofer channels	98 W, 3.2 channels (better)
eARC
eARC	–	Yes
Wi-Fi
Wi-Fi	Wi-Fi 802.11a/b/g/n/ac	Wi-Fi 802.11a/b/g/n/ac
Bluetooth
Bluetooth	Bluetooth 4.1	Bluetooth 4.2
Speaker detail
Speaker detail	Sony Acoustic Surface uses panel actuators and a rear subwoofer. Sony lists five 10 W outputs, totalling 50 W; both exact reviews praised sound alignment with on-screen action.	Acoustic Surface Audio+ uses six 13 W actuator channels and two 10 W subwoofer channels, total 98 W. Sony lists TV centre-speaker mode for use with an external surround amplifier.
Casting
Casting	Chromecast built into Android TV, per Sony UK.	Chromecast built in; Google Play Store apps and Google Assistant voice search through Android TV.
TV tuners
TV tuners	Two digital terrestrial/cable tuners and two satellite tuners; DVB-T/T2, DVB-C and DVB-S/S2.	Sony UK lists terrestrial, cable and satellite RF inputs; UK YouView catch-up services are described in both exact-model reviews.
USB
USB	Three USB ports, one side and two bottom; Sony lists USB HDD recording.	Three USB ports, two bottom and one side, with USB HDD recording.
Ethernet
Ethernet	One bottom Ethernet input.	One bottom Ethernet socket.
Optical audio out
Optical audio out	One bottom optical digital output.	One bottom digital audio output.
Design and power
Size
Size	Without support stand (W × H × D), Sony UK: 55″ 1228 × 711 × 86 mm, 65″ 1451 × 834 × 86 mm, 77″ 1721 × 997 × 99 mm. Sony separately gives a 7.8 mm thin panel section for 55/65; it is not the total depth.	Without-stand W × H × D, Sony UK: 55″ approximately 1228 × 711 × 86 mm; 65″ approximately 1449 × 835 × 86 mm. Configuration weights exclude the stand.
Stand
Stand	Rear leaning support slate hides electronics and subwoofer; Sony's with-stand depth is 339 mm for 55/65 and 399 mm for 77. Sony UK announced 77-inch UK availability for late September 2017, after the smaller sizes.	Easel-style rear stand. Sony lists 320 mm depth with stand for both sizes; the screen leans back slightly.
Power use
Power use	–	Sony UK standard operating power: 55″ 150 W, 65″ 190 W. Rated maximum power is 401 W and 521 W respectively.
Colours
Colours	–	Black bezel.
VESA pattern
VESA pattern	400 × 200 mm for 55/65; 400 × 300 mm for 77.	–
In the box
In the box	Sony UK lists stand, voice remote, batteries, IR blaster, power cord, operating instructions and quick setup guide.	–