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Sony A7 IV vs Sony A7S III

Portability
61 Imaging
81 Features
92 Overall
85
Sony Alpha A7 IV front
 
Sony Alpha A7S III front
Portability
61 Imaging
65 Features
92 Overall
75

Sony A7 IV vs Sony A7S III Key Specs

Sony A7 IV
(Full Review)
  • 33MP - Full frame Sensor
  • 3" Fully Articulated Display
  • ISO 100 - 51200 (Push to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 699g - 129 x 97 x 81mm
  • Announced October 2021
  • Old Model is Sony A7 III
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
  • Launched July 2020
  • Replaced the Sony A7S II
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Sony A7 IV vs Sony A7S III Overview

Below, we will be matching up the Sony A7 IV vs Sony A7S III, both Pro Mirrorless cameras and both are manufactured by Sony. There is a huge difference among the sensor resolutions of the A7 IV (33MP) and A7S III (12MP) but they enjoy the exact same sensor size (Full frame).

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The A7 IV was launched 16 months after the A7S III which makes the cameras a generation away from each other. Both of these cameras come with the identical body type (SLR-style mirrorless).

Before going straight into a thorough comparison, below is a concise summary of how the A7 IV matches up against the A7S III with respect to portability, imaging, features and an overall score.

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Reasons to pick Sony A7 IV over the Sony A7S III

		

		

			
 A7 IV A7S III 
LaunchedOctober 2021July 2020More modern by 16 months
		

	

	
	

		

		
Reasons to pick Sony A7S III over the Sony A7 IV

		

		

			
 A7S III A7 IV 
		

	

	
	

		

		
Common features in the Sony A7 IV and Sony A7S III

		

		

			
 A7 IV A7S III 
Manually focus  Dial precise focusing
Screen typeFully articulatedFully articulatedFully Articulated screen
Screen dimension3"3"Identical screen size
Screen resolution1440k1440kEqual screen resolution
Selfie screen  Both good for selfies
Touch friendly screen  Quickly navigate
		

	

	

	
	
	
	

	

		

		
Sony A7 IV vs Sony A7S III Physical Comparison

		

		

			
If you are planning to carry around your camera regularly, you will have to consider its weight and proportions. The Sony A7 IV offers physical measurements of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") with a weight of 699 grams (1.54 lbs) and the Sony A7S III has measurements of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") with a weight of 699 grams (1.54 lbs).
Compare the Sony A7 IV vs Sony A7S III in the all new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses
Don't forget, the weight of an Interchangeable Lens Camera will differ depending on the lens you are utilizing at that time. The following is the front view sizing comparison of the A7 IV against the A7S III.
Sony A7 IV vs Sony A7S III size comparison
Looking at size and weight, the portability rating of the A7 IV and A7S III is 61 and 61 respectively.
Sony A7 IV vs Sony A7S III top view buttons comparison		

	

	
	

		

		
Sony A7 IV vs Sony A7S III Sensor Comparison

		

		

			
Oftentimes, its tough to visualise the difference in sensor sizes just by seeing a spec sheet. The image here might provide you a far better sense of the sensor sizing in the A7 IV and A7S III.
Clearly, each of these cameras posses the exact same sensor measurements albeit not the same MP. You should expect the Sony A7 IV to produce more detail utilizing its extra 21 Megapixels. Higher resolution will make it easier to crop photographs somewhat more aggressively. The newer A7 IV is going to have a benefit when it comes to sensor tech.
	
			Sony A7 IV vs Sony A7S III sensor size comparison			
		

	

	
	

		

		
Sony A7 IV vs Sony A7S III Screen and ViewFinder

		

		

					

		Sony A7 IV vs Sony A7S III Screen and Viewfinder comparison	

	
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Photography Type Scores

		

	

	
Portrait Comparison
Sony A7 IV Portrait photography info
Sony A7S III Portrait photography info
81
 manual focus
 high megapixels (33MP)
 big sensor size (Full frame)
 includes face detect focus
 supports RAW formats
 no liveview
71
 manual focus
 sensor size is large (Full frame)
 provides face detect autofocus
 saves RAW files
 sensor resolution low (12 megapixels)
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Street Comparison
Sony A7 IV Street photography information
Sony A7S III Street photography information
79
 image stabilization (Sensor based 5-axis)
 big sensor size (Full frame)
 supports RAW formats
 features focus by touch
 weather proofing
 good ISO range (51,200)
76
 built in image stabilization (Sensor based 5-axis)
 sensor size is large (Full frame)
 saves RAW files
 comes with touch to focus
 weather proof
 very good high ISO (102,400)
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Sports Comparison
Sony A7 IV Sports photography advice
Sony A7S III Sports photography advice
84
 high shutter speed (1/8,000 seconds)
 image stabilization (Sensor based 5-axis)
 high megapixels (33MP)
 big sensor size (Full frame)
 includes tracking focus
 weather proofing
 good battery pack (600 per charge)
 supports phase detect auto focus
 no liveview
76
 high shutter speed (1/8,000s)
 built in image stabilization (Sensor based 5-axis)
 sensor size is large (Full frame)
 provides tracking focus
 weather proof
 good battery (600 shots)
 comes with phase detect autofocus
 sensor resolution low (12MP)
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Travel Comparison
Sony A7 IV Travel photography information
Sony A7S III Travel photography information
80
 good battery pack (600 shots)
 weather proofing
 has bluetooth
 features focus by touch
 high megapixels (33MP)
 display is selfie friendly
70
 good battery (600 per charge)
 weather proof
 supports bluetooth
 comes with touch to focus
 screen is selfie friendly
 sensor resolution low (12MP)
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Landscape Comparison
Sony A7 IV Landscape photography factors
Sony A7S III Landscape photography factors
84
 manual focus
 switch lenses (Sony E mount)
 good sized screen (3")
 image stabilization (Sensor based 5-axis)
 high megapixels (33MP)
 big sensor size (Full frame)
 good ISO range (51,200)
 supports RAW formats
 weather proofing
 good battery pack (600 per charge)
 has dual storage slots
 no liveview
77
 manual focus
 switch lenses (Sony E mount)
 screen size is good (3 inch)
 built in image stabilization (Sensor based 5-axis)
 sensor size is large (Full frame)
 very good high ISO (102,400)
 saves RAW files
 weather proof
 good battery (600 per charge)
 has double storage slots
 sensor resolution low (12MP)
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Vlogging Comparison
Vlogging with Sony A7 IV
Vlogging with Sony A7S III
80
 display is selfie friendly
 touchscreen functionality
 image stabilization (Sensor based 5-axis)
 includes face detect focus
 high res video (3840 x 2160 pixels)
 comes with mic jack
77
 screen is selfie friendly
 touchscreen capability
 built in image stabilization (Sensor based 5-axis)
 provides face detect autofocus
 good video quality (3840 x 2160 resolution)
 does have mic port
Photography Glossary
	

		

			
Sony A7 IV vs Sony A7S III Specifications

		

		

					

		
		

			Detailed spec comparison table for Sony A7 IV and Sony A7S III
 Sony Alpha A7 IVSony Alpha A7S III
General Information
Company Sony Sony
Model Sony Alpha A7 IV Sony Alpha A7S III
Category Pro Mirrorless Pro Mirrorless
Announced 2021-10-21 2020-07-21
Body design SLR-style mirrorless SLR-style mirrorless
Sensor Information
Processor - Bionz XR
Sensor type BSI-CMOS BSI-CMOS
Sensor size Full frame Full frame
Sensor dimensions 35.8 x 23.8mm 35.6 x 23.8mm
Sensor area 852.0mm² 847.3mm²
Sensor resolution 33 megapixels 12 megapixels
Anti aliasing filter    
Aspect ratio 1:1, 4:3, 3:2 and  16:9 3:2 and  16:9
Highest resolution 7008 x 4672 4240 x 2832
Highest native ISO 51200 102400
Highest boosted ISO 204800 409600
Lowest native ISO 100 80
RAW data    
Lowest boosted ISO 50 50
Autofocusing
Manual focus    
Touch focus    
Continuous autofocus    
Autofocus single    
Tracking autofocus    
Selective autofocus    
Autofocus center weighted    
Autofocus multi area    
Autofocus live view    
Face detect focus    
Contract detect focus    
Phase detect focus    
Number of focus points 759 759
Lens
Lens mounting type Sony E Sony E
Available lenses 172 121
Crop factor 1 1
Screen
Display type Fully articulated Fully articulated
Display diagonal 3 inches 3 inches
Display resolution 1,440k dot 1,440k dot
Selfie friendly    
Liveview    
Touch functionality    
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 3,690k dot 9,440k dot
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.78x 0.91x
Features
Slowest shutter speed 30 secs 30 secs
Maximum shutter speed 1/8000 secs 1/8000 secs
Continuous shooting speed 10.0fps 10.0fps
Shutter priority    
Aperture priority    
Manual exposure    
Exposure compensation Yes Yes
Change white balance    
Image stabilization    
Inbuilt flash    
Flash range no built-in flash no built-in flash
Flash options no built-in flash no built-in flash
External flash    
AE bracketing    
White balance bracketing    
Maximum flash sync 1/200 secs -
Exposure
Multisegment    
Average    
Spot    
Partial    
AF area    
Center weighted    
Video features
Video resolutions 3843840 x 2160 @ 60p / 200 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 50p / 200 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 30p / 140 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 25p / 140 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 24p / 100 Mbps, XAVC HS, MP4, H.265, Linear PCM3840 x 2160 @ 60p / 600 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 50p / 500 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 30p / 300 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 25p / 250 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 24p / 240 Mbps, XAVC S-I, MP4, H.264, Linear PCM3840 x 2160 @ 120p / 280 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 100p / 280 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 60p / 200 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 50p / 200 Mbps, XAVC S, MP4, H.264, Linear PCM3840 x 2160 @ 30p / 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
Highest video resolution 3840x2160 3840x2160
Video data format MPEG-4, XAVC S, XAVC HS, XAVC S-I, H.264, H.265 MPEG-4, XAVC S, XAVC HS, XAVC S-1, H.264, H.265
Mic jack    
Headphone jack    
Connectivity
Wireless Built-In Built-In
Bluetooth    
NFC    
HDMI    
USB Yes (USB PD supported) USB 3.2 Gen 1 (5 GBit/sec)
GPS None None
Physical
Environment seal    
Water proof    
Dust proof    
Shock proof    
Crush proof    
Freeze proof    
Weight 699 grams (1.54 lbs) 699 grams (1.54 lbs)
Dimensions 129 x 97 x 81mm (5.1" x 3.8" x 3.2") 129 x 97 x 81mm (5.1" x 3.8" x 3.2")
DXO scores
DXO All around score not tested 85
DXO Color Depth score not tested 23.6
DXO Dynamic range score not tested 13.3
DXO Low light score not tested 2993
Other
Battery life 600 pictures 600 pictures
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 or 10 sec; continuous (3 or 5 exposures))
Time lapse feature   With downloadable app
Type of storage Dual SD/CFexpress Type A slots Dual SD/CFexpress Type A slots
Storage slots Dual Dual
Retail pricing $2,500 $3,499