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Sony Alpha 1 II vs Sony Alpha 9 II

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

Better figure, where one is clearly better

SonyAlpha 1 IISonyAlpha 9 II
Overview
ReleasedDecember 2024November 2019
Image and sensor
Camera typeMirrorlessMirrorless
Sensor formatFull frameFull frame
Sensor typeStacked Exmor RS CMOS with integral memoryStacked Exmor RS CMOS with integral memory
Sensor dimensions35.9 × 24 mm35.6 × 23.8 mm
Effective resolution50.1 MP24.2 MP
Largest image8640 × 57606000 × 4000
RAW recordingYesYes
Standard ISO range100–32000100–51200
Sensor detailApproximately 50.5 million total pixels; Pixel Shift Multi Shooting uses four or 16 exposures combined in compatible computer software.Approximately 28.3 million total pixels; 3:2 sensor.
Image formatsJPEG, HEIF and Sony ARW 5.0 RAW.JPEG, RAW and RAW+JPEG; Sony ARW 2.3 compressed or uncompressed RAW.
ISO detailStandard ISO 100–32000 for stills and movies; stills expand to ISO 50–102400.Mechanical-shutter stills use standard ISO 100–51200, expandable to 50–204800. Electronic-shutter stills use ISO 100–25600 with expanded ISO 50. Movie ISO 100–51200, expandable to 102400.
Image processorBIONZ XR and dedicated AI processing unit.BIONZ X.
Lens and shooting
Lens mountSony E-mountSony E-mount
StabilisationSensor shiftSensor shift
Maximum continuous burst30 fps20 fps
AutofocusUp to 759 phase-detection points for stills and movies; sensitivity EV −4 to 20 in AF-S with an F2 lens at ISO 100. Automatic or selected recognition of people, animals, birds, insects, cars, trains and aircraft. Sony's current feature page specifies Real-time Recognition AF+ from firmware version 4.00; launch reviews describe earlier firmware.Fast Hybrid AF with 693 full-frame phase-detection points covering approximately 93% of the image area and 425 contrast points; Real-time Tracking and Eye AF. AF/AE calculations up to 60 times per second under maker conditions.
Burst detailUp to 30 fps electronic Hi+ with AF/AE tracking under compatible-lens and maker conditions; uncompressed or lossless-compressed RAW up to 20 fps; mechanical Hi+ up to 10 fps. Pre-Capture retains up to one second before full shutter press, subject to camera temperature and shooting conditions. A custom button can temporarily change burst speed.Up to 20 fps electronic Hi with AF/AE tracking at shutter speeds of 1/125 second or faster, depending on compatible lens and shooting settings; up to 10 fps mechanical. Sony claims 239 compressed RAW or 361 JPEG frames with UHS-II media under its test conditions.
Stabilisation detailFive-axis sensor shift; centre 8.5 stops and periphery 7.0 stops under CIPA 2024 pitch/yaw/roll conditions with FE 50mm F1.2 GM and long-exposure noise reduction off. Active and Dynamic Active movie modes narrow the field of view and are unavailable in 8K or at frame rates of 120 fps or higher.Five-axis sensor shift; Sony claims 5.5 stops under CIPA pitch/yaw conditions with Planar T* FE 50mm F1.4 ZA and long-exposure noise reduction off.
Video
Highest video resolution7680 × 4320 at 30 fps3840 × 2160 at 30 fps
Video detailSony's current feature page lists internal 7680 × 4320 30p XAVC HS with 8.6K oversampling and 10-bit 4:2:2 support. Lower-resolution 4K up to 120p has approximately 10% crop; Full HD 240 fps is lower resolution. S-Log3, S-Cinetone and imported LUTs supported; external HDMI RAW is separate from internal recording.Japanese specification lists XAVC S 3840 × 2160 at 30p/24p, up to 100 Mbps. Full HD 120p is lower resolution. No picture profiles or S-Log. Full-frame 24p oversampling uses approximately 2.4 times 4K information; 30p uses approximately 1.6 times.
Audio–Built-in stereo microphone; microphone and headphone sockets; Multi Interface Shoe with digital audio interface. Voice memos can accompany still photographs.
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3.2″3″
Screen dots2,095,1041,440,000
TouchscreenYesYes
Tilting screenYesYes
Display detailFour-axis TFT LCD opens approximately 98° up, 40° down and 180° sideways, with 270° rotation when opened sideways.Rear TFT LCD tilts approximately 107° upwards and 41° downwards.
Viewfinder detail0.64-inch Quad-XGA OLED with 9437184 dots and approximately 0.90× magnification with a 50 mm lens at infinity. Selectable 60/120/240 fps; standard magnification is unavailable at 240 fps.0.5-inch electronic viewfinder with 3686400 dots, 100% coverage and approximately 0.78× magnification with a 50 mm lens at infinity; selectable 60/120 fps display.
Connections and design
Wi-FiYesYes
BluetoothYesYes
Battery life (maker's claim)520 photographs690 photographs
Body weight658 g593 g
Release detailSony UK specifies availability in December 2024; no release day inferred. Exact technical figures use Sony Japan because the UK specification URLs were inaccessible during research.Sony Japan specifies 1 November 2019 for ILCE-9M2; this is the Japanese on-sale date, not a UK release claim. The UK legacy specification URL now redirects to a family page, so exact Japanese specifications are used.
Recording mediaBoth slots accept CFexpress 2.0 Type A or UHS-I/UHS-II SD.Two UHS-II SD card slots.
PortsUSB Type-C at 10 Gbps, Multi/Micro USB, full-size HDMI, 2.5GBASE-T Ethernet, sync terminal, 3.5 mm microphone and headphone sockets and digital-audio Multi Interface Shoe.USB Type-C, Multi/Micro USB, Micro HDMI Type D, 1000BASE-T Ethernet, sync terminal, 3.5 mm microphone socket, headphone socket and digital-audio Multi Interface Shoe.
Wireless connectionsWi-Fi IEEE 802.11a/b/g/n/ac at 2.4/5 GHz and Bluetooth 5.0.Wi-Fi IEEE 802.11a/b/g/n/ac at 2.4/5 GHz; NFC and Bluetooth remote support.
Battery life detailNP-FZ100; Sony Japan CIPA approximately 520 photographs with LCD or 420 with viewfinder. PhotographyBlog's 530/400 figures are not used. USB Type-C Power Delivery charging and power supported.NP-FZ100; CIPA approximately 690 photographs with LCD or 500 with viewfinder; charging and power through USB Type-C or Multi/Micro USB.
DimensionsApproximately 136.1 × 96.9 × 82.9 mm (width × height × maximum depth); grip-to-monitor depth 72.8 mm.Approximately 128.9 × 96.4 × 77.5 mm (width × height × maximum depth); grip-to-monitor depth 67.3 mm.
Weight detailApproximately 658 g body only or 743 g with battery and memory card, excluding lens. PhotographyBlog's inconsistent 617 g figure is not used.Approximately 593 g body only or 678 g with battery and memory card, excluding lens.
In the boxOne NP-FZ100 battery, BC-ZD1 dual-battery charger, cable protector, shoulder strap, body cap, accessory shoe cap and FDA-EP19/FDA-EP21 eyepiece cups, according to Sony Japan. USB Power Delivery AC adaptor and USB cable are not included.NP-FZ100 battery, BC-QZ1 charger, power cord, cable protector, shoulder strap, body cap, accessory shoe cap, eyepiece cup and USB Type-C cable, according to Sony Japan.

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