Sony a7 IV vs Sony a9 III

Key Differences

  • Sony a9 III has a better continuous shooting (120 fps vs 10 fps).
  • Sony a7 IV has a better buffer (raw) (828 shots vs 192 shots).
  • Sony a9 III has a better evf resolution (9.44M dots vs 3.69M dots).
  • Sony a7 IV has a better price (msrp) ($2,499 vs $5,999).
  • Sony a9 III has a better lcd resolution (2.10M dots vs 1.04M dots).
Product
Sony a7 IV
Sony
$2,499
Sony a9 III
Sony
$5,999
Imaging
Sensor TypeBSI CMOSGlobal Shutter CMOS
Sensor SizeFull-FrameFull-Frame
Effective Resolution33 MP24.6 MP
Max Image Size4K4K
Lens MountSony ESony E
Exposure Control
ISO Range (Native)100 โ€“ 51200250 โ€“ 25600
ISO Range (Extended)50 โ€“ 204800125 โ€“ 51200
Mechanical Shutter1/8000โˆ’
Electronic Shutter1/80001/80000
Flash Sync Speed1/2501/80000
Still Image Capture
Continuous Shooting10 fps120 fps
Buffer (RAW)828 shots192 shots
Video Capture
Max Resolution4K4K
8K Recordingโˆ’โˆ’
4K RecordingUp to 60pUp to 120p
1080p RecordingUp to 120pUp to 240p
10-bit InternalYesYes
Recording LimitNo limitNo limit
Log ProfilesS-Log3 / HLG / S-CinetoneS-Log3 / HLG / S-Cinetone
Built-in MicStereoStereo
Headphone JackYesYes
Mic InputYesYes
HDMI OutputFull-size (Type A)Full-size (Type A)
Focus
Phase Detect Points759759
Contrast Detect Points425425
Low Light AF-4 EV-5 EV
Eye AFYesYes
Animal AFYesYes
Vehicle AFNoYes
Viewfinder
EVF TypeOLEDOLED
EVF Resolution3.69M dots9.44M dots
EVF Magnification0.78x0.9x
Monitor
LCD Size3"3.2"
LCD Resolution1.04M dots2.10M dots
LCD TypeVari-Angle4-Axis Tilting
Touch ScreenYesYes
Interface
Wi-FiWi-Fi 5Wi-Fi 6
Bluetoothv4.2v5.3
USBUSB-C 3.2 Gen 2USB-C 3.2 Gen 2
GPSNoNo
General
Price (MSRP)$2,499$5,999
Body MaterialMagnesium AlloyMagnesium Alloy
Dimensions131.3ร—96.4ร—79.8 mm136.1ร—96.9ร—82.9 mm
Weight658g (1.45 lb)703g (1.55 lb)
Weather SealedYesYes
In-Body StabilizationYesYes
Battery Life (EVF)520 shots520 shots
Battery Life (LCD)580 shots530 shots
Battery TypeNP-FZ100NP-FZ100