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Sony A7 IV vs Sony A7R III

Portability
61
Imaging
80
Features
92
Overall
84
Sony Alpha A7 IV front
 
Sony Alpha A7R III front
Portability
63
Imaging
78
Features
93
Overall
84

Sony A7 IV vs Sony A7R III Key Specs

Sony A7 IV
(Full Review)
  • 33MP - Full frame Sensor
  • 3" Fully Articulated Screen
  • ISO 100 - 51200 (Expand 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
  • Introduced October 2021
  • Replaced the Sony A7 III
Sony A7R III
(Full Review)
  • 42MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 32000 (Push to 102400)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 657g - 127 x 96 x 74mm
  • Revealed October 2017
  • Previous Model is Sony A7R II
  • Newer Model is Sony A7R IV
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Sony A7 IV vs Sony A7R III Overview

Its time to look a little more in depth at the Sony A7 IV and Sony A7R III, both Pro Mirrorless cameras and both are sold by Sony. There exists a significant gap among the image resolutions of the A7 IV (33MP) and A7R III (42MP) but both cameras posses the same sensor size (Full frame).

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The A7 IV was launched 4 years after the A7R III which is a fairly sizable gap as far as camera technology is concerned. The two cameras have the same body design (SLR-style mirrorless).

Before getting right into a in-depth comparison, here is a short introduction of how the A7 IV matches up against the A7R III in regards to portability, imaging, features and an overall mark.

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Reasons to pick Sony A7 IV over the Sony A7R III

 A7 IV A7R III 
RevealedOctober 2021October 2017Newer by 49 months
Display typeFully articulatedTiltingFully Articulating display
Selfie screen Take selfies

Reasons to pick Sony A7R III over the Sony A7 IV

 A7R III A7 IV 

Common features in the Sony A7 IV and Sony A7R III

 A7 IV A7R III 
Manual focus Dial precise focusing
Display dimensions3"3"Equal display size
Display resolution1440k1440kExact same display resolution
Touch display Easily navigate

Sony A7 IV vs Sony A7R III Physical Comparison

When you are intending to travel with your camera often, you should take into account its weight and dimensions. The Sony A7 IV has external dimensions of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") along with a weight of 699 grams (1.54 lbs) and the Sony A7R III has dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") having a weight of 657 grams (1.45 lbs).

Check out the Sony A7 IV and Sony A7R III in the new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are utilizing during that time. Below is a front view proportions comparison of the A7 IV and the A7R III.

Sony A7 IV vs Sony A7R III size comparison

Taking into account dimensions and weight, the portability rating of the A7 IV and A7R III is 61 and 63 respectively.

Sony A7 IV vs Sony A7R III top view buttons comparison

Sony A7 IV vs Sony A7R III Sensor Comparison

More often than not, it is very hard to picture the contrast in sensor dimensions only by viewing technical specs. The pic underneath will provide you a stronger sense of the sensor dimensions in the A7 IV and A7R III.

As you have seen, both cameras have the same sensor dimensions but different megapixels. You should expect to see the Sony A7R III to result in extra detail utilizing its extra 9 Megapixels. Greater resolution will let you crop photos a bit more aggressively. The more recent A7 IV provides an edge when it comes to sensor innovation.

Sony A7 IV vs Sony A7R III sensor size comparison

Sony A7 IV vs Sony A7R III Screen and ViewFinder

Sony A7 IV vs Sony A7R III Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sony A7 IV as a Portrait photography camera
Sony A7R III as a Portrait photography camera
81
has manual focus
MP count amazing (33MP)
sensor size is large (Full frame)
features face detect focusing
exports RAW formats
doesn't have liveview
86
focusing manually
sensor resolution is great (42MP)
sensor size is large (Full frame)
provides face detect focusing
saves RAW formats
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Street Comparison

Sony A7 IV Street photography factors
Sony A7R III Street photography factors
79
image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
exports RAW formats
offers focus by touch
environment sealing
above average high ISO (51,200)
79
screen tilts
built in image stabilization (Sensor based 5-axis)
sensor size is large (Full frame)
saves RAW formats
comes with focus via touch
weather sealing
above average high ISO (32,000)
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Sports Comparison

Sony A7 IV Sports photography highlights
Sony A7R III Sports photography highlights
84
high shutter speed (1/8,000 seconds)
image stabilization (Sensor based 5-axis)
MP count amazing (33MP)
sensor size is large (Full frame)
features tracking focus
environment sealing
great battery power (600 per charge)
sensor has phase detect AF
doesn't have liveview
89
high shutter speed (1/8,000 seconds)
built in image stabilization (Sensor based 5-axis)
sensor resolution is great (42 megapixels)
sensor size is large (Full frame)
provides tracking focus
weather sealing
better than average battery (650 CIPA)
comes with phase detect AF
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Travel Comparison

Sony A7 IV Travel photography factors
Sony A7R III Travel photography factors
80
great battery power (600 shots)
environment sealing
connects via bluetooth
offers focus by touch
MP count amazing (33MP)
screen is selfie friendly
74
better than average battery (650 per charge)
weather sealing
connects via bluetooth
comes with focus via touch
sensor resolution is great (42MP)
screen is not selfie friendly
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Landscape Comparison

Sony A7 IV as a Landscape photography camera
Sony A7R III as a Landscape photography camera
83
has manual focus
switch lenses (Sony E mount)
nice screen size (3")
image stabilization (Sensor based 5-axis)
MP count amazing (33 megapixels)
sensor size is large (Full frame)
above average high ISO (51,200)
exports RAW formats
environment sealing
great battery power (600 CIPA)
two card slots
doesn't have liveview
87
focusing manually
change lenses (Sony E mount)
pretty good screen size (3 inch)
built in image stabilization (Sensor based 5-axis)
sensor resolution is great (42MP)
sensor size is large (Full frame)
no anti aliasing filter
above average high ISO (32,000)
saves RAW formats
weather sealing
better than average battery (650 per charge)
two card slots
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Vlogging Comparison

Sony A7 IV Vlogging highlights
Sony A7R III Vlogging highlights
80
screen is selfie friendly
touchscreen capability
image stabilization (Sensor based 5-axis)
features face detect focusing
high res video (3840 x 2160 resolution)
includes mic socket
37
screen is touchscreen
built in image stabilization (Sensor based 5-axis)
provides face detect focusing
video resolution high (3840 x 2160 pxls)
does have mic socket
screen is not selfie friendly
Photography Glossary

Sony A7 IV vs Sony A7R III Specifications

Detailed spec comparison table for Sony A7 IV and Sony A7R III
 Sony Alpha A7 IVSony Alpha A7R III
General Information
Manufacturer Sony Sony
Model type Sony Alpha A7 IV Sony Alpha A7R III
Class Pro Mirrorless Pro Mirrorless
Introduced 2021-10-21 2017-10-25
Physical type SLR-style mirrorless SLR-style mirrorless
Sensor Information
Processor Chip - Bionz X
Sensor type BSI-CMOS BSI-CMOS
Sensor size Full frame Full frame
Sensor dimensions 35.8 x 23.8mm 35.9 x 24mm
Sensor surface area 852.0mm² 861.6mm²
Sensor resolution 33 megapixels 42 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 3:2 and 16:9
Full resolution 7008 x 4672 7952 x 5304
Max native ISO 51200 32000
Max boosted ISO 204800 102400
Minimum native ISO 100 100
RAW photos
Minimum boosted ISO 50 50
Autofocusing
Manual focusing
Autofocus touch
Continuous autofocus
Single autofocus
Tracking autofocus
Autofocus selectice
Center weighted autofocus
Autofocus multi area
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Total focus points 759 425
Lens
Lens mount type Sony E Sony E
Total lenses 172 121
Crop factor 1 1
Screen
Type of screen Fully articulated Tilting
Screen size 3" 3"
Resolution of screen 1,440 thousand dots 1,440 thousand dots
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 3,690 thousand dots 3,686 thousand dots
Viewfinder coverage 100% 100%
Viewfinder magnification 0.78x 0.78x
Features
Slowest shutter speed 30 secs 30 secs
Maximum shutter speed 1/8000 secs 1/8000 secs
Continuous shooting rate 10.0 frames per second 10.0 frames per second
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Inbuilt flash
Flash distance no built-in flash no built-in flash
Flash modes no built-in flash Off, Auto, Fill-flash, Slow Sync, Rear Sync, Red-eye reduction, Wireless, Hi-speed sync
Hot shoe
AEB
White balance bracketing
Maximum flash synchronize 1/200 secs -
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported 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 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)
Max video resolution 3840x2160 3840x2160
Video data format MPEG-4, XAVC S, XAVC HS, XAVC S-I, H.264, H.265 MPEG-4, AVCHD, XAVC S
Mic port
Headphone port
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB Yes (USB PD supported) USB 3.1 Gen 1(5 GBit/sec)
GPS None None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 699g (1.54 lbs) 657g (1.45 lbs)
Physical dimensions 129 x 97 x 81mm (5.1" x 3.8" x 3.2") 127 x 96 x 74mm (5.0" x 3.8" x 2.9")
DXO scores
DXO All around rating not tested 100
DXO Color Depth rating not tested 26.0
DXO Dynamic range rating not tested 14.7
DXO Low light rating not tested 3523
Other
Battery life 600 pictures 650 pictures
Battery type Battery Pack Battery Pack
Battery ID 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 shooting
Storage type Dual SD/CFexpress Type A slots Two SD/SDHC/SDXC slots (UHS-II support on one)
Card slots 2 2
Pricing at launch $2,500 $2,800