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Sony A7R IV vs Sony A6400

Portability
62
Imaging
81
Features
93
Overall
85
Sony Alpha A7R IV front
 
Sony Alpha a6400 front
Portability
83
Imaging
70
Features
88
Overall
77

Sony A7R IV vs Sony A6400 Key Specs

Sony A7R IV
(Full Review)
  • 61MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 32000 (Expand to 102800)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 665g - 129 x 96 x 78mm
  • Announced July 2019
  • Superseded the Sony A7R III
  • Newer Model is Sony A7R V
Sony A6400
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Tilting Screen
  • ISO 100 - 32000 (Bump to 102400)
  • 3840 x 2160 video
  • Sony E Mount
  • 403g - 120 x 67 x 50mm
  • Revealed January 2019
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Sony A7R IV vs Sony A6400 Overview

Its time to take a closer look at the Sony A7R IV vs Sony A6400, former is a Pro Mirrorless while the latter is a Advanced Mirrorless and both are built by Sony. There is a noticeable difference among the resolutions of the A7R IV (61MP) and A6400 (24MP) and the A7R IV (Full frame) and A6400 (APS-C) feature different sensor dimensions.

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The A7R IV was launched 7 months after the A6400 so they are of a similar age. Both of these cameras offer different body type with the Sony A7R IV being a SLR-style mirrorless camera and the Sony A6400 being a Rangefinder-style mirrorless camera.

Before diving straight into a in depth comparison, below is a concise synopsis of how the A7R IV grades against the A6400 in the way of portability, imaging, features and an overall mark.

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Reasons to pick Sony A7R IV over the Sony A6400

 A7R IV A6400 
RevealedJuly 2019January 2019Newer by 7 months
Screen resolution1440k922kClearer screen (+518k dot)

Reasons to pick Sony A6400 over the Sony A7R IV

 A6400 A7R IV 
Selfie screen Easy selfies

Common features in the Sony A7R IV and Sony A6400

 A7R IV A6400 
Focus manually More precise focusing
Screen typeTiltingTiltingTilting screen
Screen sizing3"3"Equivalent screen sizing
Touch friendly screen Quickly navigate

Sony A7R IV vs Sony A6400 Physical Comparison

When you are intending to travel with your camera regularly, you'll have to take into account its weight and volume. The Sony A7R IV features external dimensions of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") accompanied by a weight of 665 grams (1.47 lbs) whilst the Sony A6400 has sizing of 120mm x 67mm x 50mm (4.7" x 2.6" x 2.0") having a weight of 403 grams (0.89 lbs).

See the Sony A7R IV vs Sony A6400 in our newest Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an ILC will differ dependant on the lens you are employing at the time. Here is the front view over all size comparison of the A7R IV against the A6400.

Sony A7R IV vs Sony A6400 size comparison

Considering size and weight, the portability rating of the A7R IV and A6400 is 62 and 83 respectively.

Sony A7R IV vs Sony A6400 top view buttons comparison

Sony A7R IV vs Sony A6400 Sensor Comparison

Oftentimes, it is hard to picture the contrast in sensor dimensions purely by checking out specs. The pic below might offer you a stronger sense of the sensor dimensions in the A7R IV and A6400.

As you can plainly see, both the cameras enjoy different resolutions and different sensor dimensions. The A7R IV because of its bigger sensor is going to make shooting shallow DOF less difficult and the Sony A7R IV will produce greater detail utilizing its extra 37 Megapixels. Higher resolution can also enable you to crop pictures far more aggressively. The younger A7R IV provides an advantage when it comes to sensor technology.

Sony A7R IV vs Sony A6400 sensor size comparison

Sony A7R IV vs Sony A6400 Screen and ViewFinder

Sony A7R IV vs Sony A6400 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Sony A7R IV Portrait photography details
Sony A6400 Portrait photography details
88
you can focus manually
great megapixels (61 megapixels)
big sensor size (Full frame)
offers face detection autofocus
delivers RAW files
82
focusing manually
MP count good (24MP)
nice sensor size (APS-C)
comes with face detection focus
delivers RAW formats
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Street Comparison

Sony A7R IV Street photography advice
Sony A6400 Street photography advice
79
has a tilting screen
has image stabilization (Sensor based 5-axis)
big sensor size (Full frame)
delivers RAW files
includes touch focus
environment sealing
good ISO range (32,000)
81
tilting screen
nice sensor size (APS-C)
delivers RAW formats
offers focus by touch
weather sealing
above average high ISO (32,000)
lack of image stabilization
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Sports Comparison

Sony A7R IV Sports photography highlights
Sony A6400 Sports photography highlights
90
great max shutter speed (1/8,000 seconds)
has image stabilization (Sensor based 5-axis)
great megapixels (61MP)
big sensor size (Full frame)
offers tracking autofocus
environment sealing
better than average battery life (670 CIPA)
has phase detect autofocus
76
MP count good (24MP)
nice sensor size (APS-C)
comes with tracking autofocus
weather sealing
sensor has phase detect auto focus
lack of image stabilization
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Travel Comparison

Sony A7R IV as a Travel photography camera
Sony A6400 as a Travel photography camera
74
better than average battery life (670 shots)
environment sealing
supports bluetooth
includes touch focus
great megapixels (61MP)
screen isn't selfie friendly
87
weather sealing
has bluetooth
offers focus by touch
MP count good (24 megapixels)
built-in flash
screen is selfie friendly
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Landscape Comparison

Sony A7R IV Landscape photography advice
Sony A6400 Landscape photography advice
88
you can focus manually
swap lenses (Sony E mount)
decent sized screen (3")
has image stabilization (Sensor based 5-axis)
great megapixels (61MP)
big sensor size (Full frame)
no anti-alias filter
good ISO range (32,000)
delivers RAW files
environment sealing
better than average battery life (670 shots)
has dual storage slots
80
focusing manually
switch lenses (Sony E mount)
screen size is good (3 inches)
MP count good (24MP)
nice sensor size (APS-C)
above average high ISO (32,000)
delivers RAW formats
weather sealing
lack of image stabilization
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Vlogging Comparison

Vlogging with Sony A7R IV
Vlogging with Sony A6400
37
has touchscreen
has image stabilization (Sensor based 5-axis)
offers face detection autofocus
video resolution high (3840 x 2160 resolution)
has external microphone jack
screen isn't selfie friendly
80
screen is selfie friendly
has touchscreen
comes with face detection focus
high res video (3840 x 2160 resolution)
includes external microphone socket
lack of image stabilization
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Sony A7R IV vs Sony A6400 Specifications

Detailed spec comparison table for Sony A7R IV and Sony A6400
 Sony Alpha A7R IVSony Alpha a6400
General Information
Company Sony Sony
Model type Sony Alpha A7R IV Sony Alpha a6400
Category Pro Mirrorless Advanced Mirrorless
Announced 2019-07-16 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 61 megapixel 24 megapixel
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 1:1, 3:2 and 16:9
Peak resolution 9504 x 6336 6000 x 4000
Highest native ISO 32000 32000
Highest enhanced ISO 102800 102400
Lowest native ISO 100 100
RAW pictures
Lowest enhanced ISO 50 -
Autofocusing
Focus manually
Touch focus
Continuous AF
AF single
Tracking AF
Selective AF
AF center weighted
AF multi area
AF live view
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 567 425
Lens
Lens mount type Sony E Sony E
Number of lenses 121 121
Crop factor 1 1.5
Screen
Display type Tilting Tilting
Display size 3 inch 3 inch
Resolution of display 1,440 thousand dots 922 thousand dots
Selfie friendly
Liveview
Touch screen
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 5,760 thousand dots 2,359 thousand dots
Viewfinder coverage 100% 100%
Viewfinder magnification 0.78x 0.7x
Features
Minimum shutter speed 30 secs 30 secs
Fastest shutter speed 1/8000 secs 1/4000 secs
Continuous shutter rate 10.0fps 11.0fps
Shutter priority
Aperture priority
Manual mode
Exposure compensation Yes Yes
Custom WB
Image stabilization
Integrated flash
Flash distance no built-in flash 6.00 m (at ISO 100)
Flash modes Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync. Off, auto, on, slow sync, rear sync, redeye reduction, wireless, hi-speed sync
External flash
Auto exposure bracketing
White balance bracketing
Fastest flash synchronize 1/250 secs -
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Highest video resolution 3840x2160 3840x2160
Video file format MPEG-4, 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
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 665 gr (1.47 lb) 403 gr (0.89 lb)
Dimensions 129 x 96 x 78mm (5.1" x 3.8" x 3.1") 120 x 67 x 50mm (4.7" x 2.6" x 2.0")
DXO scores
DXO Overall rating 99 83
DXO Color Depth rating 26.0 24.0
DXO Dynamic range rating 14.8 13.6
DXO Low light rating 3344 1431
Other
Battery life 670 photographs 410 photographs
Battery type Battery Pack Battery Pack
Battery ID NP-FZ100 NP-FW50
Self timer Yes Yes
Time lapse feature
Type of storage Dual SD/SDHC/SDXC (UHS-II compatible) SD/SDHC/SDXC/Memory Stick DUO (UHS-I compliant)
Card slots 2 Single
Retail price $3,498 $898