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Sony A7 III vs Sony A6400

Portability
63
Imaging
74
Features
92
Overall
81
Sony Alpha A7 III front
 
Sony Alpha a6400 front
Portability
83
Imaging
69
Features
88
Overall
76

Sony A7 III vs Sony A6400 Key Specs

Sony A7 III
(Full Review)
  • 24MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 51200 (Bump to 204800)
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 650g - 127 x 96 x 74mm
  • Launched February 2018
  • Succeeded the Sony A7 II
  • Replacement is Sony A7 IV
Sony A6400
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Tilting Display
  • ISO 100 - 32000 (Bump to 102400)
  • 3840 x 2160 video
  • Sony E Mount
  • 403g - 120 x 67 x 50mm
  • Introduced January 2019
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Sony A7 III vs Sony A6400 Overview

Let's look a little more closely at the Sony A7 III and Sony A6400, one is a Pro Mirrorless and the other is a Advanced Mirrorless and both are manufactured by Sony. The resolution of the A7 III (24MP) and the A6400 (24MP) is fairly well matched but the A7 III (Full frame) and A6400 (APS-C) possess different sensor measurements.

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The A7 III was revealed 10 months earlier than the A6400 and they are of a similar generation. The two cameras come with different body type with the Sony A7 III being a SLR-style mirrorless camera and the Sony A6400 being a Rangefinder-style mirrorless camera.

Before we go in to a in depth comparison, below is a quick view of how the A7 III grades vs the A6400 in the way of portability, imaging, features and an overall mark.

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Reasons to pick Sony A7 III over the Sony A6400

 A7 III A6400 

Reasons to pick Sony A6400 over the Sony A7 III

 A6400 A7 III 
IntroducedJanuary 2019February 2018Newer by 10 months
Selfie screen Easy selfies

Common features in the Sony A7 III and Sony A6400

 A7 III A6400 
Manual focus More exact focus
Display typeTiltingTiltingTilting display
Display dimension3"3"Identical display measurements
Display resolution922k922kSame display resolution
Touch friendly display Easily navigate

Sony A7 III vs Sony A6400 Physical Comparison

If you are planning to travel with your camera frequently, you will want to consider its weight and dimensions. The Sony A7 III enjoys external measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") with a weight of 650 grams (1.43 lbs) whilst the Sony A6400 has dimensions of 120mm x 67mm x 50mm (4.7" x 2.6" x 2.0") having a weight of 403 grams (0.89 lbs).

Take a look at the Sony A7 III and Sony A6400 in the all new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are utilising at that moment. Below is the front view dimension comparison of the A7 III versus the A6400.

Sony A7 III vs Sony A6400 size comparison

Factoring in dimensions and weight, the portability score of the A7 III and A6400 is 63 and 83 respectively.

Sony A7 III vs Sony A6400 top view buttons comparison

Sony A7 III vs Sony A6400 Sensor Comparison

Sometimes, it can be tough to imagine the gap between sensor dimensions only by reading through specs. The image underneath might give you a much better sense of the sensor sizing in the A7 III and A6400.

All in all, the two cameras have got the exact same megapixels but different sensor dimensions. The A7 III contains the larger sensor which should make achieving shallow depth of field easier. The more aged A7 III is going to be behind in sensor technology.

Sony A7 III vs Sony A6400 sensor size comparison

Sony A7 III vs Sony A6400 Screen and ViewFinder

Sony A7 III vs Sony A6400 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sony A7 III Portrait photography highlights
Sony A6400 Portrait photography highlights
84
you can focus manually
megapixel count decent (24MP)
sensor size is big (Full frame)
supports face detection autofocus
supports RAW files
81
focusing manually
MP count decent (24MP)
decent sensor size (APS-C)
supports face detection autofocus
supports RAW files
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Street Comparison

Sony A7 III Street photography factors
Sony A6400 Street photography factors
78
screen tilts
has image stabilization (Sensor based 5-axis)
sensor size is big (Full frame)
supports RAW files
comes with focus via touch
environment sealing
good high ISO (51,200)
81
has a tilting screen
decent sensor size (APS-C)
supports RAW files
features touch focus
environment proofing
above average ISO range (32,000)
does not have image stabilization
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Sports Comparison

Sony A7 III Sports photography factors
Sony A6400 Sports photography factors
87
max shutter speed is good (1/8,000s)
has image stabilization (Sensor based 5-axis)
megapixel count decent (24 megapixels)
sensor size is big (Full frame)
supports tracking autofocus
environment sealing
great battery pack (610 CIPA)
comes with phase detect autofocus
76
MP count decent (24MP)
decent sensor size (APS-C)
supports tracking autofocus
environment proofing
supports phase detect autofocus
does not have image stabilization
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Travel Comparison

Sony A7 III Travel photography details
Sony A6400 Travel photography details
73
great battery pack (610 shots)
environment sealing
supports bluetooth
comes with focus via touch
megapixel count decent (24MP)
does not contain selfie friendly screen
87
environment proofing
supports bluetooth
features touch focus
MP count decent (24MP)
has built in flash
selfie friendly display
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Landscape Comparison

Sony A7 III Landscape photography details
Sony A6400 Landscape photography details
85
you can focus manually
change lenses (Sony E mount)
screen size is good (3 inches)
has image stabilization (Sensor based 5-axis)
megapixel count decent (24 megapixels)
sensor size is big (Full frame)
good high ISO (51,200)
supports RAW files
environment sealing
great battery pack (610 per charge)
has dual storage slots
80
focusing manually
swap lenses (Sony E mount)
screen size is good (3 inch)
MP count decent (24 megapixels)
decent sensor size (APS-C)
above average ISO range (32,000)
supports RAW files
environment proofing
does not have image stabilization
Photography Glossary

Vlogging Comparison

Sony A7 III Vlogging info
Sony A6400 Vlogging info
36
touch screen
has image stabilization (Sensor based 5-axis)
supports face detection autofocus
video resolution high (3840 x 2160 pxls)
does have external microphone jack
does not contain selfie friendly screen
80
selfie friendly display
touchscreen enabled
supports face detection autofocus
good video quality (3840 x 2160 pxls)
comes with external microphone socket
does not have image stabilization
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Sony A7 III vs Sony A6400 Specifications

Detailed spec comparison table for Sony A7 III and Sony A6400
 Sony Alpha A7 IIISony Alpha a6400
General Information
Make Sony Sony
Model Sony Alpha A7 III Sony Alpha a6400
Category Pro Mirrorless Advanced Mirrorless
Launched 2018-02-27 2019-01-15
Physical type SLR-style mirrorless Rangefinder-style mirrorless
Sensor Information
Powered by Bionz X Bionz X
Sensor type BSI-CMOS CMOS
Sensor size Full frame APS-C
Sensor measurements 35.8 x 23.8mm 23.5 x 15.6mm
Sensor area 852.0mm² 366.6mm²
Sensor resolution 24 megapixel 24 megapixel
Anti aliasing filter
Aspect ratio 3:2 and 16:9 1:1, 3:2 and 16:9
Highest Possible resolution 6000 x 4000 6000 x 4000
Maximum native ISO 51200 32000
Maximum enhanced ISO 204800 102400
Minimum native ISO 100 100
RAW format
Minimum enhanced ISO 50 -
Autofocusing
Manual focus
AF touch
Continuous AF
AF single
AF tracking
Selective AF
Center weighted AF
AF multi area
AF live view
Face detection AF
Contract detection AF
Phase detection AF
Number of focus points 693 425
Lens
Lens mounting type Sony E Sony E
Number of lenses 121 121
Focal length multiplier 1 1.5
Screen
Type of screen Tilting Tilting
Screen sizing 3 inches 3 inches
Resolution of screen 922k dots 922k dots
Selfie friendly
Liveview
Touch display
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 2,359k dots 2,359k dots
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.78x 0.7x
Features
Min shutter speed 30s 30s
Max shutter speed 1/8000s 1/4000s
Continuous shutter rate 10.0 frames/s 11.0 frames/s
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash range no built-in flash 6.00 m (at ISO 100)
Flash settings no built-in flash Off, auto, on, slow sync, rear sync, redeye reduction, wireless, hi-speed sync
Hot shoe
Auto exposure bracketing
White balance bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 3840 x 2160 (30p, 24p) 1920 x 1080 (120p, 60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p) 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, H.264 MPEG-4, H.264, XAVC-S
Microphone port
Headphone port
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 3.1 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 650 grams (1.43 pounds) 403 grams (0.89 pounds)
Dimensions 127 x 96 x 74mm (5.0" x 3.8" x 2.9") 120 x 67 x 50mm (4.7" x 2.6" x 2.0")
DXO scores
DXO Overall score 96 83
DXO Color Depth score 25.0 24.0
DXO Dynamic range score 14.7 13.6
DXO Low light score 3730 1431
Other
Battery life 610 shots 410 shots
Type of battery Battery Pack Battery Pack
Battery model NP-FZ100 NP-FW50
Self timer Yes (2 or 10 sec; continuous (3 or 5 exposures)) Yes
Time lapse shooting
Type of storage SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo SD/SDHC/SDXC/Memory Stick DUO (UHS-I compliant)
Card slots Dual One
Launch cost $1,998 $898