Sony A7S III VS A7 III Differences

Today we are going to talk about the main differences between the sony series and more about the Sony A7S III vs A7 III and I will explain which is the best option for you. How to choose which camera to buy and what are the differences.

So, I had the opportunity to test those cameras and compare each one the things I have in common are both cameras have a full-frame sensor even the newest one Sony A7R IV has a full-frame sensor.

Sony A7S III


Sony Alpha A7 III


Release Date   28 July 202027 February 2018
Body Type SLR Style MirrorlessSLR Style Mirrorless
Sensor typeBSI CMOSFull Frame BSI CMOS
Sensor size36 x 24 mm35.8 x 23.8 mm
Sensor resolution4240 x 28326000 x 4000
Sensor pixels1224
ProcessorBIONZ XRBionz X
ISOAuto 80-102400 
Expandable 40-409600
Auto 100 – 51200
Expands 50- 204800
Image stabilization5 axis sensor shiftSensor shift 5 axis 5 stops
Focal length multiplier1x1x
Focus typeHybridFast Hybrid
Focus points759693
Manual focusYesyes
Viewfinder typeElectronic OledElectronic Oled
Viewfinder resolution9,440K dots2,359,296 dots
Viewfinder magnification3″0.78x
Screen typeFully Articulated LCDArticulated LCD Touch Tilting
Screen size 3.0″3.0″
Screen resolution1,440,000k dots921,600 dots
Continuous drive10fps10.0 fps
Shutter typeMechanical & ElectronicElectronic controlled vertical traverse focal plane
Shutter speedMin 30 sec
Max 1/8000 sec
Min 30 sec
Max 1/8000 sec
Build-in FlashNO
External flashYesYes
Flash sync speed1/250 sec1/250sec
Battery type NP-FZ100NP-FZ100
Battery life CIPA600 shots710
Exposure compensation+/- 5 at 1/3 EV, 1/2 EV steps+/- 5 at 1/3 EV, 1/2 EV, steps
Image format HEIF, JPEG, RawJPEG, Raw
Bit Rate14bit14bit
Video formatMPEG 4, XAVC S, XAVC HS, XAVC S-1, H.264, H.256MPEG-4, AVCHD, XAVC S, H.264
Video resolution4k 120
Full Hd 240
4k 3840 x 2160 up to 30p
FHD 1920 x 1080 up to 120p
Log ProfileSony S-Log 2, Sony S-Log 3S Log2, S Log3
Audio formatXAVC S: 2-Channel LPCM Audio
AVCHD: 2-Channel AC-3 Audio
Media slots2 slots2 slots
Storage typeSD/CFexpress UHS II Type A Dual slotsSlot 1 SD/SDHC/SDXC UHS II Slot 2 SD/SDHC/SDXC UHS I Memory stick Duo Hybrid
ConnectivityUSB 3.2 GEN1- 5 Bit/secWI-FI
Build-in Bluetooth YesYes
Build in Wi-FiYesYes
Color Filter ArrayPrimary Color FilterPrimary Color Filter
Wireless transmitter802.11b/g/n/ac 5 GHz802.11b/g/n/  2.4 GHz
Operating Temperature0 to 40°C/32 to 104°F0 to 40°C/ 32 to 104°F
Audio I/O1 x 1/8″ / 3.5 mm1 x 1/8″ / 3.5 mm 
Video I/O1 x HDMI Output1 x Micro-HDMI Output
Power I/O1 x USB Type-C Input1 x Micro-HDMI Output
Dimensions128.9 x 96.9 x 69.7 mm126.9 x 95.6 x 73.7 mm

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