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Sony Alpha 1 II vs Sony Alpha 7 III

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

Better figure, where one is clearly better

SonyAlpha 1 IISonyAlpha 7 III
Overview
ReleasedDecember 2024March 2018
Image and sensor
Camera typeMirrorlessMirrorless
Sensor formatFull frameFull frame
Sensor typeStacked Exmor RS CMOS with integral memoryBack-illuminated Exmor R CMOS
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 25.3 million total pixels; 3:2 back-illuminated sensor.
Image formatsJPEG, HEIF and Sony ARW 5.0 RAW.JPEG and Sony ARW 2.3 RAW, including uncompressed RAW. Sony's announcement limits compressed RAW continuous shooting to 12 bits; 14-bit output is not universal in every mode.
ISO detailStandard ISO 100–32000 for stills and movies; stills expand to ISO 50–102400.Standard still-image ISO 100–51200; expanded ISO 50–204800. Video ISO 100–51200 expands up to ISO 102400.
Image processorBIONZ XR and dedicated AI processing unit.BIONZ X with front-end LSI.
Lens and shooting
Lens mountSony E-mountSony E-mount
StabilisationSensor shiftSensor shift
Maximum continuous burst30 fps10 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 phase-detection and 425 contrast-detection points; phase-detection covers approximately 93% of the image area. Eye AF supports continuous AF.
Shutter–Focal-plane shutter; 30 seconds to 1/8000 second plus Bulb; electronic first curtain and silent electronic shooting.
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 approximately 10 fps in Hi+ with AF/AE tracking using mechanical or silent shooting; approximately 8 fps in Hi with live view. Maximum speed depends on settings and lens compatibility. Silent shooting can distort moving subjects. Sony gives buffers of approximately 177 standard JPEG, 89 compressed RAW or 40 uncompressed RAW images under its UHS-II SDXC 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 image-sensor shift; Sony claims 5 stops under CIPA conditions for pitch/yaw with Planar T* FE 50mm F1.4 ZA and long-exposure noise reduction off. Correction depends on the lens.
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/NTSC XAVC S 4K at 30p or 24p, approximately 100 or 60 Mbps; the UK PAL specification lists 25p. Full HD reaches 120p in NTSC modes. S-Log2, S-Log3 and HLG supported. Sony specifies different sensor readout at 24p and 30p; PhotographyBlog reports a 1.2× crop at 30p. Continuous recording is limited to approximately 29 minutes.
Audio–Built-in stereo microphone; 3.5 mm microphone and headphone sockets.
Screen and viewfinder
ViewfinderElectronicElectronic
Screen size3.2″3″
Screen dots2,095,104921,600
TouchscreenYesYes
Tilting screenYesYes
Display detailFour-axis TFT LCD opens approximately 98° up, 40° down and 180° sideways, with 270° rotation when opened sideways.TFT screen tilts approximately 107° up and 41° down; touch focus is supported. Dots count colour subpixels.
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; 2,359,296 dots; 100% coverage and approximately 0.78× magnification with a 50 mm lens at infinity.
Connections and design
Wi-FiYesYes
BluetoothYesYes
Battery life (maker's claim)520 photographs710 photographs
Body weight658 g565 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 23 March 2018 for the ILCE-7M3 body and ILCE-7M3K kit, following its 27 February announcement; this is the Japanese sale date, not a UK release claim.
Recording mediaBoth slots accept CFexpress 2.0 Type A or UHS-I/UHS-II SD.Two card slots; slot 1 supports UHS-I and UHS-II SD cards, while slot 2 supports UHS-I SD and compatible Memory Stick media.
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-C with USB 3.1 Gen 1, Multi/Micro USB, Micro HDMI, microphone and headphone sockets and 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 802.11b/g/n at 2.4 GHz, Bluetooth 4.1 and NFC.
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; approximately 710 photographs with the monitor or 610 with the viewfinder under CIPA conditions.
Charging–USB-C or Multi/Micro USB charging and power supply.
DimensionsApproximately 136.1 × 96.9 × 82.9 mm (width × height × maximum depth); grip-to-monitor depth 72.8 mm.Approximately 126.9 × 95.6 × 73.7 mm maximum (width × height × depth); Sony also gives 62.7 mm from grip to monitor.
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 565 g body only; 650 g including battery and memory card; lens excluded.
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, AC adaptor AC-UUD12, shoulder strap, body cap, accessory shoe cap, eyepiece cup and Micro USB cable, according to Sony Japan.

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