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Sony A6400 vs Sony RX100 IV

Portability
83
Imaging
69
Features
88
Overall
76
Sony Alpha a6400 front
 
Sony Cyber-shot DSC-RX100 IV front
Portability
89
Imaging
52
Features
79
Overall
62

Sony A6400 vs Sony RX100 IV Key Specs

Sony A6400
(Full Review)
  • 24MP - APS-C Sensor
  • 3" Tilting Screen
  • ISO 100 - 32000 (Raise to 102400)
  • 3840 x 2160 video
  • Sony E Mount
  • 403g - 120 x 67 x 50mm
  • Released January 2019
Sony RX100 IV
(Full Review)
  • 20MP - 1" Sensor
  • 3" Tilting Screen
  • ISO 125 - 12800 (Bump to 25600)
  • Optical Image Stabilization
  • 3840 x 2160 video
  • 24-70mm (F1.8-2.8) lens
  • 298g - 102 x 58 x 41mm
  • Announced June 2015
  • Replaced the Sony RX100 III
  • Renewed by Sony RX100 V
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Sony A6400 vs Sony RX100 IV Overview

Lets look a bit more in depth at the Sony A6400 versus Sony RX100 IV, former is a Advanced Mirrorless while the latter is a Large Sensor Compact and both of them are created by Sony. The sensor resolution of the A6400 (24MP) and the RX100 IV (20MP) is relatively comparable but the A6400 (APS-C) and RX100 IV (1") feature totally different sensor size.

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The A6400 was brought out 3 years after the RX100 IV which is a fairly large difference as far as camera tech is concerned. The two cameras offer different body type with the Sony A6400 being a Rangefinder-style mirrorless camera and the Sony RX100 IV being a Large Sensor Compact camera.

Before getting in to a comprehensive comparison, below is a short summary of how the A6400 scores against the RX100 IV with regard to portability, imaging, features and an overall mark.

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Reasons to pick Sony A6400 over the Sony RX100 IV

 A6400 RX100 IV 
AnnouncedJanuary 2019June 2015Newer by 44 months
Touch friendly screen Quickly navigate

Reasons to pick Sony RX100 IV over the Sony A6400

 RX100 IV A6400 
Screen resolution1229k922kClearer screen (+307k dot)

Common features in the Sony A6400 and Sony RX100 IV

 A6400 RX100 IV 
Focus manually Very exact focusing
Screen typeTiltingTiltingTilting screen
Screen sizing3"3"Equivalent screen size
Selfie screen Both are selfie friendly

Sony A6400 vs Sony RX100 IV Physical Comparison

For anybody who is planning to travel with your camera, you should consider its weight and size. The Sony A6400 features external measurements of 120mm x 67mm x 50mm (4.7" x 2.6" x 2.0") along with a weight of 403 grams (0.89 lbs) and the Sony RX100 IV has specifications of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") with a weight of 298 grams (0.66 lbs).

Contrast the Sony A6400 versus Sony RX100 IV in our brand new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will change depending on the lens you are utilising at that moment. Following is the front view measurement comparison of the A6400 compared to the RX100 IV.

Sony A6400 vs Sony RX100 IV size comparison

Taking into account size and weight, the portability score of the A6400 and RX100 IV is 83 and 89 respectively.

Sony A6400 vs Sony RX100 IV top view buttons comparison

Sony A6400 vs Sony RX100 IV Sensor Comparison

Often, its hard to see the gap in sensor dimensions merely by going through specs. The image underneath may give you a much better sense of the sensor sizing in the A6400 and RX100 IV.

As you can plainly see, both cameras offer different megapixel count and different sensor dimensions. The A6400 featuring a bigger sensor will make achieving bokeh simpler and the Sony A6400 will produce more detail having its extra 4MP. Higher resolution can also help you crop shots a little more aggressively. The fresher A6400 is going to have an edge in sensor technology.

Sony A6400 vs Sony RX100 IV sensor size comparison

Sony A6400 vs Sony RX100 IV Screen and ViewFinder

Sony A6400 vs Sony RX100 IV Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Sony A6400
Portrait photography with Sony RX100 IV
81
has manual focus
decent sensor resolution (24MP)
sensor size is decent (APS-C)
comes with face detect autofocus
saves RAW formats
65
manual focus
high flash sync (1/2,000s)
megapixel count decent (20 megapixels)
sensor size is decent (1")
provides face detect focusing
exports RAW files
external flash not possible
Photography Glossary

Street Comparison

Sony A6400 Street photography info
Sony RX100 IV Street photography info
81
screen tilts up and down
sensor size is decent (APS-C)
saves RAW formats
has touch to focus
weather proofing
very good ISO range (32,000)
lack of image stabilization
85
tilting screen
image stabilization (Optical)
sensor size is decent (1")
exports RAW files
lighter than competition in class (298g)
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Sports Comparison

Sony A6400 Sports photography info
Sony RX100 IV Sports photography info
76
decent sensor resolution (24MP)
sensor size is decent (APS-C)
comes with tracking focus
weather proofing
has phase detect autofocus
lack of image stabilization
68
silent shutter (1/32,000 seconds)
fast shooting (16.0 frames per second)
image stabilization (Optical)
megapixel count decent (20MP)
sensor size is decent (1")
provides tracking focus
does not have phase detect AF
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Travel Comparison

Sony A6400 as a Travel photography camera
Sony RX100 IV as a Travel photography camera
87
weather proofing
connects via bluetooth
has touch to focus
decent sensor resolution (24MP)
built-in flash
selfie friendly screen
86
lighter than competition in class (298 grams)
megapixel count decent (20 megapixels)
has built in flash
screen is selfie friendly
rather wide (24mm)
very good max aperture (f1.8)
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Landscape Comparison

Sony A6400 Landscape photography advice
Sony RX100 IV Landscape photography advice
80
has manual focus
change lenses (Sony E mount)
pretty good screen size (3 inches)
decent sensor resolution (24MP)
sensor size is decent (APS-C)
very good ISO range (32,000)
saves RAW formats
weather proofing
lack of image stabilization
74
manual focus
rather wide (24mm)
very good max aperture (f1.8)
nice screen size (3 inch)
image stabilization (Optical)
megapixel count decent (20 megapixels)
sensor size is decent (1")
exports RAW files
lens is fixed (fixed lens mount)
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Vlogging Comparison

Sony A6400 as a Vlogging camera
Sony RX100 IV as a Vlogging camera
80
selfie friendly screen
touchscreen
comes with face detect autofocus
video resolution high (3840 x 2160 pixels)
has microphone port
lack of image stabilization
81
rather wide (24mm)
very good max aperture (f1.8)
screen is selfie friendly
image stabilization (Optical)
provides face detect focusing
video resolution high (3840 x 2160 pixels)
lighter than competition in class (298g)
does not have mic port
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Sony A6400 vs Sony RX100 IV Specifications

Detailed spec comparison table for Sony A6400 and Sony RX100 IV
 Sony Alpha a6400Sony Cyber-shot DSC-RX100 IV
General Information
Brand Name Sony Sony
Model Sony Alpha a6400 Sony Cyber-shot DSC-RX100 IV
Category Advanced Mirrorless Large Sensor Compact
Released 2019-01-15 2015-06-10
Body design Rangefinder-style mirrorless Large Sensor Compact
Sensor Information
Processor Chip Bionz X Bionz X
Sensor type CMOS BSI-CMOS
Sensor size APS-C 1"
Sensor dimensions 23.5 x 15.6mm 13.2 x 8.8mm
Sensor surface area 366.6mm² 116.2mm²
Sensor resolution 24MP 20MP
Anti aliasing filter
Aspect ratio 1:1, 3:2 and 16:9 1:1, 4:3, 3:2 and 16:9
Full resolution 6000 x 4000 5472 x 3648
Max native ISO 32000 12800
Max boosted ISO 102400 25600
Lowest native ISO 100 125
RAW photos
Lowest boosted ISO - 80
Autofocusing
Focus manually
Touch to focus
Continuous autofocus
Autofocus single
Autofocus tracking
Selective autofocus
Autofocus center weighted
Autofocus multi area
Autofocus live view
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 425 25
Lens
Lens mount Sony E fixed lens
Lens focal range - 24-70mm (2.9x)
Max aperture - f/1.8-2.8
Macro focus distance - 5cm
Total lenses 121 -
Focal length multiplier 1.5 2.7
Screen
Range of screen Tilting Tilting
Screen sizing 3 inch 3 inch
Screen resolution 922 thousand dot 1,229 thousand dot
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 2,359 thousand dot 2,359 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.7x 0.59x
Features
Lowest shutter speed 30 seconds 30 seconds
Highest shutter speed 1/4000 seconds 1/2000 seconds
Highest silent shutter speed - 1/32000 seconds
Continuous shooting speed 11.0fps 16.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom white balance
Image stabilization
Built-in flash
Flash range 6.00 m (at ISO 100) -
Flash modes Off, auto, on, slow sync, rear sync, redeye reduction, wireless, hi-speed sync -
External flash
AEB
WB bracketing
Highest flash sync - 1/2000 seconds
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p/60i/24p), 1280 x 720 (60p/30p/24p/120p), 1440 x 1080 (30 fps), 640 x 480 (30 fps)
Max video resolution 3840x2160 3840x2160
Video file format MPEG-4, H.264, XAVC-S MPEG-4, AVCHD, XAVC S
Mic jack
Headphone jack
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 403 gr (0.89 lb) 298 gr (0.66 lb)
Dimensions 120 x 67 x 50mm (4.7" x 2.6" x 2.0") 102 x 58 x 41mm (4.0" x 2.3" x 1.6")
DXO scores
DXO All around score 83 70
DXO Color Depth score 24.0 22.9
DXO Dynamic range score 13.6 12.6
DXO Low light score 1431 562
Other
Battery life 410 shots 280 shots
Style of battery Battery Pack Battery Pack
Battery model NP-FW50 NP-BX1
Self timer Yes Yes
Time lapse recording With downloadable app
Storage media SD/SDHC/SDXC/Memory Stick DUO (UHS-I compliant) SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
Storage slots One One
Pricing at launch $898 $898