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Sony a7 III vs Sony a9

5.1 in
2.9 in
Sony a7 III Digital Camera
Sony a7 III
5.0 in
3.76 in
Sony a9 Digital Camera
Sony a9
Available colors
Editiorial reviews
38
4.6 out of 5
18 user ratings
5 stars
77 %
4 stars
22 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
68
4.7 out of 5
24 user ratings
5 stars
83 %
4 stars
16 %
3 stars
0 %
2 stars
0 %
1 stars
0 %
Read editorial reviews
User rating
62
4.1 out of 5
62 user ratings
5 stars
40 %
4 stars
37 %
3 stars
16 %
2 stars
3 %
1 stars
3 %
38
4.0 out of 5
38 user ratings
5 stars
34 %
4 stars
34 %
3 stars
28 %
2 stars
2 %
1 stars
0 %

Video Comparisons (1)

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Full Comparison

Sensor

Sony a7 IIISony a7 III
Sony a9Sony a9
Sensor typeCMOSCMOS
Image sensor formatFull-frame
Advanced Photo System type-C
Sensor size1.4 in1.41 in
ProcessorBIONZ XBIONZ X

Image

Sony a7 IIISony a7 III
Sony a9Sony a9
ISO
  • 100
  • 12800
  • 51200
  • 102400
  • 100
  • 25600
ISO minimum50100
ISO maximum20480025600
Maximum image resolution6000 x 4000 px6000 x 4000 px
White balance modes
  • Auto
  • Cloudy
  • Custom modes
  • Daylight
  • Flash
  • Fluorescent
  • Incandescent
  • Shade
  • Underwater
  • Auto
  • Cloudy
  • Custom modes
  • Daylight
  • Fluorescent
  • Incandescent
  • Shade
Supported image file formatsJPEG
  • JPEG
  • RAW
Photo effects
  • Black&White
  • Neutral
  • Sepia
  • Vivid
  • Black&White
  • Neutral
  • Sepia
  • Vivid
Supported aspect ratios3:2
  • 3:2
  • 16:9

Optics and focus

Sony a7 IIISony a7 III
Sony a9Sony a9
Lens mountSony E
  • Sony FE
  • Canon EF
  • Sony E
Magnification (Crop factor)0.78 x1.0 x
Focus adjustmentAuto/ManualAuto/Manual
Autofocus
  • Continuous Auto Focus
  • Contrast Detection Auto Focus
  • Face detection
  • One Shot Focus
Only lenses with AF-motor
Auto Focus (AF) lockyesyes
Image stabiliserOpticalBuilt-in

Screen and viewfinder

Sony a7 IIISony a7 III
Sony a9Sony a9
Screen size2.95 in3.0 in
Screen technologyLCDLCD TFT
Touch screenyesno
ViewfinderElectronicElectronic
Viewfinder screen size0.51 in0.5 in
Viewfinder magnification0.78 x0.78 x
Flip-out screennono

Photography features

Sony a7 IIISony a7 III
Sony a9Sony a9
Shooting modes
  • Auto
  • Manual
  • Movie
  • Auto
  • Manual
  • Program
  • Scene
Camera shutter typeElectronic
  • Electronic
  • Mechanical
Auto exposure lockyesyes
Self-timer delay
  • 2
  • 5
  • 10
  • 2
  • 5
  • 10
Flash modes
  • Auto
  • Fill-in
  • Flash OFF
  • Flash ON
  • High-speed Sync
  • Redeye Reduction
  • Slow Sync
  • Auto
  • Fill-in
  • Flash OFF
  • Flash ON
  • High-speed Sync
  • Pre-flash
  • Slow Sync
Scene modes
  • Close-up
  • Night
  • Night portrait
  • Portrait
  • Sports
  • Sunset
  • Landscape
  • Landscape
  • Night
  • Portrait
  • Self-portrait
  • Sunset
Self-timeryesyes

Videography features

Sony a7 IIISony a7 III
Sony a9Sony a9
Maximum resolution3840 x 2160 px3840 x 2160 px
Video recordingyesyes
Recording resolutions
  • 1920 x 1080
  • 3840 x 2160
  • 1280 x 720
  • 1920 x 1080
  • 3840 x 2160
HD type4K Ultra HD4K Ultra HD
Supported video file formats
  • AVC
  • AVCHD
  • H.264
  • MPEG-4
  • XAVC S
  • AVC
  • AVCHD
  • M4V
  • XAVC-I
Camera playback
  • Single image
  • Slide show
  • Movie
  • Single image
Video recording limit125.0 min.195.0 min.
Max resolution (highest frame rate)3840 x 21601920 x 1080
Max frame rate (highest resolution)30.0 fps30.0 fps

Audio features

Sony a7 IIISony a7 III
Sony a9Sony a9
Built-in microphoneyesyes

Design

Sony a7 IIISony a7 III
Sony a9Sony a9
Body typeMILCMILC
Colour of productBlackBlack
Anti-dust systemyesyes

Dimensions

Sony a7 IIISony a7 III
Sony a9Sony a9
Weight22.93 oz23.74 oz
Width5.1 in5.0 in
Height2.9 in3.76 in
Depth3.76 in2.48 in

Storage

Sony a7 IIISony a7 III
Sony a9Sony a9
Compatible memory cards
  • MS Duo
  • MS Pro-HG Duo
  • SD
  • SDHC
  • SDXC
  • MS Pro Duo
  • MS PRO Duo Mark 2
  • MS Pro-HG Duo
  • SD
  • SDHC
  • SDXC
Memory slots22

Power

Sony a7 IIISony a7 III
Sony a9Sony a9
Power source typeBatteryBattery
Battery life (CIPA)610650
Battery technology
Lithium-Ion
Lithium-Ion
Number of batteries supported11

Connectivity

Sony a7 IIISony a7 III
Sony a9Sony a9
HDMIyesyes
HDMI connector typeMicroMicro
USB connector typeUSB Type-CMicro-USB
USB version3.12.0
Supported WiFi types
  • IEEE 802.11b
  • IEEE 802.11g
  • IEEE 802.11n
  • IEEE 802.11b
  • IEEE 802.11g
  • IEEE 802.11n
NFCyesyes
Wireless network (Wi-Fi)yesyes
Bluetoothyesyes
Bluetooth version4.14.1

Other features

Sony a7 IIISony a7 III
Sony a9Sony a9
GPSnono

Pros & Cons

Pros
      Cons

          Sony a7 III vs Sony a9 - User Opinions

          • alden
            over 1 year ago
            Thanks to its stacked sensor design, the Sony a9 is able to shoot continuously for up to 20fps when using the electronicelectronicAn electronic viewfinder (EVF) is a camera viewfinder where the image captured by the lens is displayed on a small screen (usually LCD or OLED) which the photographer can look through when composing their shot.https://en.wikipedia.org › wiki › Electronic_viewfinderElectronic viewfinder - Wikipedia shutter, however switch to the mechanical shutter and you are limited to 5fps. The a7 III can shoot up to 10fps with both electronic and the mechanical shutter.
          • What's the difference between products? Share your opinion.

          Often compared with Sony a7 III

          Often compared with Sony a9