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Sony A7S II vs Sony A9 II

Portability
68
Imaging
61
Features
76
Overall
67
Sony Alpha A7S II front
 
Sony Alpha A9 Mark II front
Portability
62
Imaging
75
Features
93
Overall
82

Sony A7S II vs Sony A9 II Key Specs

Sony A7S II
(Full Review)
  • 12MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 102400 (Push to 409600)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 627g - 127 x 96 x 60mm
  • Introduced October 2015
  • Previous Model is Sony A7S
  • Successor is Sony A7S III
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
  • Announced October 2019
  • Superseded the Sony A9
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Sony A7S II vs Sony A9 II Overview

Here, we will be comparing the Sony A7S II versus Sony A9 II, both Pro Mirrorless cameras and both of them are produced by Sony. There is a significant difference among the image resolutions of the A7S II (12MP) and A9 II (24MP) but both cameras posses the identical sensor size (Full frame).

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The A7S II was introduced 5 years earlier than the A9 II and that is a fairly sizable gap as far as camera tech is concerned. The two cameras feature the same body design (SLR-style mirrorless).

Before diving into a in depth comparison, here is a brief introduction of how the A7S II grades against the A9 II with regard to portability, imaging, features and an overall grade.

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Reasons to pick Sony A7S II over the Sony A9 II

 A7S II A9 II 

Reasons to pick Sony A9 II over the Sony A7S II

 A9 II A7S II 
AnnouncedOctober 2019October 2015More recent by 48 months
Screen resolution1440k1229kClearer screen (+211k dot)
Touch friendly screen Quickly navigate

Common features in the Sony A7S II and Sony A9 II

 A7S II A9 II 
Manual focus Very precise focus
Screen typeTiltingTiltingTilting screen
Screen size3"3"Same screen size
Selfie screen Lack of selfie screen

Sony A7S II vs Sony A9 II Physical Comparison

For those who are going to lug around your camera often, you'll need to factor in its weight and size. The Sony A7S II features outer dimensions of 127mm x 96mm x 60mm (5.0" x 3.8" x 2.4") having a weight of 627 grams (1.38 lbs) while the Sony A9 II has specifications of 129mm x 96mm x 76mm (5.1" x 3.8" x 3.0") accompanied by a weight of 678 grams (1.49 lbs).

Check the Sony A7S II versus Sony A9 II in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Keep in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you have chosen at the time. The following is a front view over all size comparison of the A7S II versus the A9 II.

Sony A7S II vs Sony A9 II size comparison

Taking into consideration size and weight, the portability rating of the A7S II and A9 II is 68 and 62 respectively.

Sony A7S II vs Sony A9 II top view buttons comparison

Sony A7S II vs Sony A9 II Sensor Comparison

In many cases, it is very tough to see the contrast in sensor measurements just by viewing a spec sheet. The graphic underneath will provide you a better sense of the sensor sizes in the A7S II and A9 II.

Clearly, both of these cameras come with the identical sensor size albeit not the same megapixels. You should expect the Sony A9 II to render more detail using its extra 12MP. Higher resolution will also allow you to crop photographs a good deal more aggressively. The older A7S II will be behind with regard to sensor technology.

Sony A7S II vs Sony A9 II sensor size comparison

Sony A7S II vs Sony A9 II Screen and ViewFinder

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

Portrait Comparison

Sony A7S II Portrait photography features
Sony A9 II Portrait photography features
68
has manual focus
sensor size is great (Full frame)
has face detection focus
saves RAW files
resolution not great (12 megapixels)
85
manual focus
megapixel count decent (24 megapixels)
large sensor size (Full frame)
comes with face detect focus
delivers RAW files
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Street Comparison

Sony A7S II Street photography highlights
Sony A9 II Street photography highlights
78
has a tilting screen
has image stabilization (Sensor based 5-axis)
sensor size is great (Full frame)
saves RAW files
environment proof
very good ISO range (102,400)
78
screen tilts
image stabilization (Sensor based 5-axis)
large sensor size (Full frame)
delivers RAW files
provides focus via touch
environment sealing
great high ISO (51,200)
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Sports Comparison

Sony A7S II Sports photography highlights
Sony A9 II Sports photography highlights
58
max shutter speed is good (1/8,000 seconds)
has image stabilization (Sensor based 5-axis)
sensor size is great (Full frame)
has tracking autofocus
environment proof
slow frames per second (5.0 fps)
resolution not great (12MP)
low battery (370 CIPA)
doesn't have phase detect auto focus
87
great max shutter speed (1/8,000s)
silent mode (1/32,000s)
fast shooting (20.0 frames per second)
image stabilization (Sensor based 5-axis)
megapixel count decent (24 megapixels)
large sensor size (Full frame)
comes with tracking focus
environment sealing
great battery life (690 per charge)
comes with phase detect auto focus
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Travel Comparison

Travel photography with Sony A7S II
Travel photography with Sony A9 II
49
environment proof
low battery (370 CIPA)
resolution not great (12MP)
display isn't selfie friendly
73
great battery life (690 per charge)
environment sealing
has bluetooth
provides focus via touch
megapixel count decent (24 megapixels)
does not have a selfie friendly screen
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Landscape Comparison

Sony A7S II Landscape photography details
Sony A9 II Landscape photography details
71
has manual focus
interchangeable lenses (Sony E mount)
good sized screen (3 inches)
has image stabilization (Sensor based 5-axis)
sensor size is great (Full frame)
very good ISO range (102,400)
saves RAW files
environment proof
resolution not great (12MP)
low battery (370 shots)
86
manual focus
change lenses (Sony E mount)
screen is a decent size (3 inch)
image stabilization (Sensor based 5-axis)
megapixel count decent (24 megapixels)
large sensor size (Full frame)
great high ISO (51,200)
delivers RAW files
environment sealing
great battery life (690 per charge)
2 card slots
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Vlogging Comparison

Sony A7S II Vlogging information
Sony A9 II Vlogging information
35
has image stabilization (Sensor based 5-axis)
has face detection focus
video res high (3840 x 2160 pixels)
includes external mic port
display isn't selfie friendly
36
screen is touchscreen
image stabilization (Sensor based 5-axis)
comes with face detect focus
high res video (3840 x 2160 pixels)
does have mic support
does not have a selfie friendly screen
Photography Glossary

Sony A7S II vs Sony A9 II Specifications

Detailed spec comparison table for Sony A7S II and Sony A9 II
 Sony Alpha A7S IISony Alpha A9 Mark II
General Information
Brand Name Sony Sony
Model Sony Alpha A7S II Sony Alpha A9 Mark II
Class Pro Mirrorless Pro Mirrorless
Introduced 2015-10-12 2019-10-03
Physical type SLR-style mirrorless SLR-style mirrorless
Sensor Information
Processor Chip Bionz X BIONZ X
Sensor type 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 megapixel 24 megapixel
Anti aliasing filter
Aspect ratio 3:2 and 16:9 3:2
Highest Possible resolution 4240 x 2832 6000 x 4000
Maximum native ISO 102400 51200
Maximum enhanced ISO 409600 204800
Minimum native ISO 100 100
RAW data
Minimum enhanced ISO 50 50
Autofocusing
Manual focus
AF touch
AF continuous
Single AF
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 169 693
Lens
Lens mount Sony E Sony E
Total lenses 121 121
Focal length multiplier 1 1
Screen
Type of screen Tilting Tilting
Screen size 3 inch 3 inch
Screen resolution 1,229k dots 1,440k dots
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 2,359k dots 3,686k dots
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.78x 0.78x
Features
Minimum shutter speed 30 seconds 30 seconds
Fastest shutter speed 1/8000 seconds 1/8000 seconds
Fastest silent shutter speed - 1/32000 seconds
Continuous shutter rate 5.0 frames/s 20.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Change WB
Image stabilization
Inbuilt flash
Flash range no built-in flash no built-in flash
Flash settings no built-in flash Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync
Hot shoe
Auto exposure bracketing
WB bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 4K (3840 x 2160 @ 30p/24p [60-100Mbps]), Full HD (1920 x 1080 @ 120p/60p/60i/30p/24p [50-100Mbps]), 720p (30p [16Mbps]) 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Maximum video resolution 3840x2160 3840x2160
Video file format MPEG-4, AVCHD, XAVC S MPEG-4, AVCHD, H.264
Mic support
Headphone support
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 3.1 Gen 1 (5 GBit/sec)
GPS None None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 627 gr (1.38 lbs) 678 gr (1.49 lbs)
Physical dimensions 127 x 96 x 60mm (5.0" x 3.8" x 2.4") 129 x 96 x 76mm (5.1" x 3.8" x 3.0")
DXO scores
DXO Overall 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 370 photographs 690 photographs
Battery style Battery Pack Battery Pack
Battery model NP-FW50 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 feature With downloadable app
Storage type SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo Dual SD/SDHC/SDXC slots (UHS-II compatible)
Card slots One 2
Launch price $2,767 $4,498