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Sony A7S III vs Sony A9 II

Portability
61
Imaging
65
Features
92
Overall
75
Sony Alpha A7S III front
 
Sony Alpha A9 Mark II front
Portability
62
Imaging
75
Features
93
Overall
82

Sony A7S III vs Sony A9 II Key Specs

Sony A7S III
(Full Review)
  • 12MP - Full frame Sensor
  • 3" Fully Articulated Screen
  • ISO 80 - 102400 (Raise to 409600)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 699g - 129 x 97 x 81mm
  • Released July 2020
  • Old Model is Sony A7S II
Sony A9 II
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 51200 (Boost to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 678g - 129 x 96 x 76mm
  • Launched October 2019
  • Replaced the Sony A9
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Sony A7S III vs Sony A9 II Overview

Lets look a bit more closely at the Sony A7S III and Sony A9 II, both Pro Mirrorless digital cameras and both of them are offered by Sony. There is a sizeable difference between the sensor resolutions of the A7S III (12MP) and A9 II (24MP) but they use the exact same sensor measurements (Full frame).

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The A7S III was unveiled 10 months later than the A9 II so they are both of a similar generation. Each of the cameras come with the identical body type (SLR-style mirrorless).

Before getting through a step-by-step comparison, below is a simple synopsis of how the A7S III matches up versus the A9 II with regard to portability, imaging, features and an overall grade.

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Reasons to pick Sony A7S III over the Sony A9 II

 A7S III A9 II 
LaunchedJuly 2020October 2019More recent by 10 months
Screen typeFully articulatedTiltingFully Articulating screen
Selfie screen Easy selfies

Reasons to pick Sony A9 II over the Sony A7S III

 A9 II A7S III 

Common features in the Sony A7S III and Sony A9 II

 A7S III A9 II 
Manually focus More accurate focus
Screen dimension3"3"Identical screen measurements
Screen resolution1440k1440kThe same screen resolution
Touch screen Quickly navigate

Sony A7S III vs Sony A9 II Physical Comparison

For anybody who is aiming to lug around your camera frequently, you're going to have to consider its weight and dimensions. The Sony A7S III enjoys exterior measurements of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") along with a weight of 699 grams (1.54 lbs) while the Sony A9 II has dimensions of 129mm x 96mm x 76mm (5.1" x 3.8" x 3.0") with a weight of 678 grams (1.49 lbs).

Take a look at the Sony A7S III and Sony A9 II in the latest Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into consideration, the weight of an Interchangeable Lens Camera will vary depending on the lens you have chosen at the time. Below is the front view measurement comparison of the A7S III versus the A9 II.

Sony A7S III vs Sony A9 II size comparison

Using size and weight, the portability score of the A7S III and A9 II is 61 and 62 respectively.

Sony A7S III vs Sony A9 II top view buttons comparison

Sony A7S III vs Sony A9 II Sensor Comparison

Often, it's difficult to imagine the difference between sensor measurements purely by checking specifications. The graphic below will provide you a more clear sense of the sensor measurements in the A7S III and A9 II.

To sum up, the 2 cameras have got the exact same sensor measurements albeit different resolution. You should expect the Sony A9 II to give extra detail having an extra 12 Megapixels. Higher resolution will let you crop shots much more aggressively. The fresher A7S III should have an advantage in sensor technology.

Sony A7S III vs Sony A9 II sensor size comparison

Sony A7S III vs Sony A9 II Screen and ViewFinder

Sony A7S III vs Sony A9 II Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Sony A7S III
Portrait photography with Sony A9 II
71
focusing manually
sensor size is large (Full frame)
comes with face detection autofocus
supports RAW formats
low megapixels (12MP)
85
focusing manually
decent sensor resolution (24MP)
big sensor size (Full frame)
has face detection focusing
saves RAW files
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Street Comparison

Sony A7S III Street photography highlights
Sony A9 II Street photography highlights
76
built in image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
supports RAW formats
has focus by touch
weather sealing
good high ISO (102,400)
78
has a tilting screen
has image stabilization (Sensor based 5-axis)
big sensor size (Full frame)
saves RAW files
boasts touch focus
environment proofing
good ISO range (51,200)
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Sports Comparison

Sony A7S III Sports photography info
Sony A9 II Sports photography info
76
max shutter speed is good (1/8,000s)
built in image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
comes with tracking autofocus
weather sealing
good battery pack (600 CIPA)
has phase detect autofocus
low megapixels (12 megapixels)
87
great max shutter speed (1/8,000 seconds)
silent shutter (1/32,000 seconds)
high max frames per second (20.0 frames/s)
has image stabilization (Sensor based 5-axis)
decent sensor resolution (24MP)
big sensor size (Full frame)
has tracking autofocus
environment proofing
great battery (690 per charge)
sensor has phase detect AF
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Travel Comparison

Travel photography with Sony A7S III
Travel photography with Sony A9 II
70
good battery pack (600 shots)
weather sealing
supports bluetooth
has focus by touch
selfie friendly display
low megapixels (12MP)
73
great battery (690 shots)
environment proofing
has bluetooth
boasts touch focus
decent sensor resolution (24 megapixels)
doesn't feature selfie friendly screen
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Landscape Comparison

Sony A7S III Landscape photography details
Sony A9 II Landscape photography details
77
focusing manually
switch lenses (Sony E mount)
nice screen size (3 inches)
built in image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
good high ISO (102,400)
supports RAW formats
weather sealing
good battery pack (600 per charge)
has dual storage slots
low megapixels (12 megapixels)
86
focusing manually
swap lenses (Sony E mount)
decent sized screen (3 inches)
has image stabilization (Sensor based 5-axis)
decent sensor resolution (24 megapixels)
big sensor size (Full frame)
good ISO range (51,200)
saves RAW files
environment proofing
great battery (690 per charge)
has dual storage slots
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Vlogging Comparison

Sony A7S III Vlogging factors
Sony A9 II Vlogging factors
77
selfie friendly display
touchscreen
built in image stabilization (Sensor based 5-axis)
comes with face detection autofocus
video res high (3840 x 2160 pixels)
has external microphone jack
36
touchscreen functionality
has image stabilization (Sensor based 5-axis)
has face detection focusing
high quality video (3840 x 2160 pixels)
includes external mic jack
doesn't feature selfie friendly screen
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Sony A7S III vs Sony A9 II Specifications

Detailed spec comparison table for Sony A7S III and Sony A9 II
 Sony Alpha A7S IIISony Alpha A9 Mark II
General Information
Manufacturer Sony Sony
Model Sony Alpha A7S III Sony Alpha A9 Mark II
Category Pro Mirrorless Pro Mirrorless
Released 2020-07-21 2019-10-03
Body design SLR-style mirrorless SLR-style mirrorless
Sensor Information
Chip Bionz XR BIONZ X
Sensor type BSI-CMOS BSI-CMOS
Sensor size Full frame Full frame
Sensor dimensions 35.6 x 23.8mm 35.6 x 23.8mm
Sensor area 847.3mm² 847.3mm²
Sensor resolution 12 megapixels 24 megapixels
Anti aliasing filter
Aspect ratio 3:2 and 16:9 3:2
Maximum resolution 4240 x 2832 6000 x 4000
Maximum native ISO 102400 51200
Maximum boosted ISO 409600 204800
Min native ISO 80 100
RAW pictures
Min boosted ISO 50 50
Autofocusing
Manual focus
AF touch
AF continuous
AF single
AF tracking
Selective AF
Center weighted AF
Multi area AF
AF live view
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 759 693
Lens
Lens mounting type Sony E Sony E
Amount of lenses 121 121
Focal length multiplier 1 1
Screen
Screen type Fully articulated Tilting
Screen diagonal 3" 3"
Resolution of screen 1,440 thousand dot 1,440 thousand dot
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 9,440 thousand dot 3,686 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.91x 0.78x
Features
Slowest shutter speed 30 seconds 30 seconds
Maximum shutter speed 1/8000 seconds 1/8000 seconds
Maximum silent shutter speed - 1/32000 seconds
Continuous shooting speed 10.0fps 20.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set WB
Image stabilization
Integrated flash
Flash range no built-in flash no built-in flash
Flash modes no built-in flash Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync
Hot shoe
AE bracketing
WB bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 3840 x 2160 @ 120p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 100p / 280 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 60p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 50p / 200 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 30p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 25p / 140 Mbps, XAVC S, MP4, H.265, Linear PCM 3840 x 2160 @ 24p / 100 Mbps, XAVC S, MP4, H.265, Linear PCM 1920 x 1080 @ 120p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 100p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 60p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 50p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 25p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 1920 x 1080 @ 24p / 50 Mbps, XAVC S, MP4, H.264, Linear PCM 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Maximum video resolution 3840x2160 3840x2160
Video data format MPEG-4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265 MPEG-4, AVCHD, H.264
Mic input
Headphone input
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 3.2 Gen 1 (5 GBit/sec) USB 3.1 Gen 1 (5 GBit/sec)
GPS None None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 699g (1.54 pounds) 678g (1.49 pounds)
Dimensions 129 x 97 x 81mm (5.1" x 3.8" x 3.2") 129 x 96 x 76mm (5.1" x 3.8" x 3.0")
DXO scores
DXO All around score 85 not tested
DXO Color Depth score 23.6 not tested
DXO Dynamic range score 13.3 not tested
DXO Low light score 2993 not tested
Other
Battery life 600 photos 690 photos
Type of battery Battery Pack Battery Pack
Battery model NP-FZ100 NP-FZ100
Self timer Yes (2 or 10 sec; continuous (3 or 5 exposures)) Yes (2, 5, 10 secs + continuous, 3 or 5 frames)
Time lapse recording With downloadable app
Type of storage Dual SD/CFexpress Type A slots Dual SD/SDHC/SDXC slots (UHS-II compatible)
Storage slots Dual Dual
Launch price $3,499 $4,498