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Sony BRAVIA A8 vs Sony BRAVIA AG9

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

SonyBRAVIA A8SonyBRAVIA AG9
Overview
ReleasedMay 20202019
Display
PanelOLEDOLED
Panel detailSelf-emitting OLED with Pixel Contrast Booster. Sony lists input up to 1080p 100/120 Hz and 4K 60 Hz, without a native panel-rate figure in its UK sheet.Self-emitting OLED with Sony Pixel Contrast Booster and TRILUMINOS processing. Sony lists 1080p 100/120 Hz input, but only up to 4K 60 Hz; a native panel rate is not stated as a main specification.
Resolution3840 × 2160 (4K)3840 × 2160 (4K)
HDR formatsHDR10, HLG, Dolby VisionHDR10, HLG, Dolby Vision
Picture processingX1 Ultimate, 4K X-Reality PRO, Dual database processing, Object-based Super Resolution and Pixel Contrast Booster.X1 Ultimate, 4K X-Reality PRO, dual database processing, Object-based Super Resolution, Pixel Contrast Booster and Netflix Calibrated mode.
Picture modesVivid, Standard, Cinema, Game, Graphics, Photo, Custom, Dolby Vision Bright/Dark and Netflix Calibrated.Vivid, Standard, Cinema, Game, Graphics, Photo, Custom, Dolby Vision Bright/Dark and Netflix Calibrated.
Motion handlingX-Motion Clarity with Auto mode; Sony lists HDMI input up to 1080p 100/120 Hz or 4K 60 Hz. Native panel rate is not stated in the UK specifications.Motionflow XR with Auto mode; Sony's UK sheet specifies video input up to 1080p 100/120 Hz and 4K 60 Hz. It does not publish a native panel rate for the complete UK series.
Sizes
Sizes55, 65″55, 65, 77″
Largest size65″77″
Gaming
HDMI ports4 (0 HDMI 2.1 at 4K 120 Hz+)4 (0 HDMI 2.1 at 4K 120 Hz+)
Variable refresh rateNoneNone
HDMI detailFour HDMI inputs, one side and three bottom, with HDCP 2.3 and eARC/ARC. Sony lists eARC as the only HDMI 2.1 feature; the inputs do not accept 4K 120 Hz.Four HDMI inputs (one side and three bottom), HDCP 2.3, with eARC on HDMI 3 according to Sony and AVForums. No HDMI input accepts 4K 120 Hz.
Game featuresGame picture mode. The exact-model AVForums and What Hi-Fi reviews report no VRR or ALLM; AVForums measured 19 ms input lag at 4K 60 Hz HDR.Game picture mode; Sony UK does not list VRR or ALLM.
Smart TV and sound
Smart TV platformAndroid TVAndroid TV
ProcessorX1 UltimateX1 Ultimate
Speakers30 W, 2.2 channels60 W, 2.2 channels
eARCYesYes
Wi-FiWi-Fi 802.11a/b/g/n/acWi-Fi 802.11a/b/g/n/ac
BluetoothBluetooth 4.2Bluetooth 4.2
Speaker detailAcoustic Surface Audio with two 10 W screen actuators and two 5 W subwoofers, total 30 W, plus Dolby Atmos decoding. Sony does not list TV centre-speaker mode.Acoustic Surface Audio+ with two 20 W screen actuators and two 10 W subwoofer channels, total 60 W. TV centre-speaker mode can feed the screen from an external receiver.
CastingAndroid TV with Google Play Store, Chromecast built in, Apple AirPlay 2 and HomeKit.Chromecast built in, Google Play Store and Google Assistant through Android TV.
TV tunersDual DVB-T/T2 and DVB-S/S2 digital tuners, DVB-C and analogue reception according to Sony UK.Dual DVB-T/T2 and DVB-S/S2 digital tuners, DVB-C and analogue reception according to Sony UK.
USBThree USB ports, two side and one bottom, with USB HDD recording.Three USB ports, two side and one bottom, with USB HDD recording.
EthernetOne bottom Ethernet socket.One bottom Ethernet socket.
Optical audio outOne bottom digital audio output.One bottom digital audio output.
Design and power
SizeSony UK gives the 55″ body as approximately 1227 × 712 × 52 mm and the 65″ body as 1448 × 836 × 52 mm, both without stands. Configuration weights are without-stand figures.Sony UK lists the 77″ body at approximately 1721 × 996 × 49 mm without stand. Configuration weights are Sony UK without-stand figures.
StandDark-silver metal blade stand with standard and raised soundbar positions.Low central dark-silver stand, around 5 mm beneath the screen in AVForums' KD-55AG9 review; separate soundbars may block the picture when placed in front.
ColoursBlack bezel and dark-silver stand.Black bezel and dark-silver stand.

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