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Sony A7S vs Sony RX10 IV

Portability
77
Imaging
59
Features
73
Overall
64
Sony Alpha A7S front
 
Sony Cyber-shot DSC-RX10 IV front
Portability
52
Imaging
53
Features
82
Overall
64

Sony A7S vs Sony RX10 IV Key Specs

Sony A7S
(Full Review)
  • 12MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 409600
  • 1/8000s Max Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 489g - 127 x 94 x 48mm
  • Announced April 2014
  • Refreshed by Sony A7S II
Sony RX10 IV
(Full Review)
  • 20MP - 1" Sensor
  • 3" Tilting Screen
  • ISO 125 - 12800 (Bump to 25600)
  • Optical Image Stabilization
  • 3840 x 2160 video
  • 24-600mm (F2.4-4.0) lens
  • 1095g - 133 x 94 x 145mm
  • Announced September 2017
  • Succeeded the Sony RX10 III
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Sony A7S vs Sony RX10 IV Overview

Lets look a bit more closely at the Sony A7S vs Sony RX10 IV, one is a Pro Mirrorless and the latter is a Large Sensor Superzoom and both of them are designed by Sony. There exists a sizeable gap between the sensor resolutions of the A7S (12MP) and RX10 IV (20MP) and the A7S (Full frame) and RX10 IV (1") use totally different sensor measurements.

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The A7S was brought out 4 years before the RX10 IV which is quite a large gap as far as technology is concerned. Each of the cameras offer different body type with the Sony A7S being a SLR-style mirrorless camera and the Sony RX10 IV being a SLR-like (bridge) camera.

Before diving through a more detailed comparison, below is a concise overview of how the A7S grades against the RX10 IV with regards to portability, imaging, features and an overall score.

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Reasons to pick Sony A7S over the Sony RX10 IV

 A7S RX10 IV 

Reasons to pick Sony RX10 IV over the Sony A7S

 RX10 IV A7S 
AnnouncedSeptember 2017April 2014More modern by 41 months
Screen resolution1440k1230kClearer screen (+210k dot)
Touch friendly screen Quickly navigate

Common features in the Sony A7S and Sony RX10 IV

 A7S RX10 IV 
Manually focus Very precise focusing
Screen typeTiltingTiltingTilting screen
Screen sizing3"3"Equivalent screen measurements
Selfie screen Lacking selfie screen

Sony A7S vs Sony RX10 IV Physical Comparison

If you are intending to carry around your camera regularly, you need to factor in its weight and proportions. The Sony A7S enjoys outer measurements of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") having a weight of 489 grams (1.08 lbs) whilst the Sony RX10 IV has measurements of 133mm x 94mm x 145mm (5.2" x 3.7" x 5.7") with a weight of 1095 grams (2.41 lbs).

Contrast the Sony A7S vs Sony RX10 IV in the new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Take into account, the weight of an Interchangeable Lens Camera will change based on the lens you have chosen during that time. Here is the front view dimension comparison of the A7S vs the RX10 IV.

Sony A7S vs Sony RX10 IV size comparison

Taking into account dimensions and weight, the portability rating of the A7S and RX10 IV is 77 and 52 respectively.

Sony A7S vs Sony RX10 IV top view buttons comparison

Sony A7S vs Sony RX10 IV Sensor Comparison

Normally, its tough to visualise the difference between sensor sizes only by looking at a spec sheet. The image here might offer you a better sense of the sensor sizing in the A7S and RX10 IV.

As you can see, the two cameras enjoy different megapixels and different sensor sizes. The A7S due to its bigger sensor will make achieving shallow DOF easier and the Sony RX10 IV will give more detail having its extra 8MP. Higher resolution will make it easier to crop shots far more aggressively. The more aged A7S is going to be behind with regard to sensor technology.

Sony A7S vs Sony RX10 IV sensor size comparison

Sony A7S vs Sony RX10 IV Screen and ViewFinder

Sony A7S vs Sony RX10 IV Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Portrait photography with Sony A7S
Portrait photography with Sony RX10 IV
67
you can focus manually
sensor size is large (Full frame)
provides face detection focusing
supports RAW files
sensor resolution low (12MP)
71
has manual focus
high flash sync (1/2,000s)
megapixel count good (20 megapixels)
sensor size is good (1")
provides face detection focus
supports RAW formats
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Street Comparison

Street photography with Sony A7S
Street photography with Sony RX10 IV
76
screen tilts
sensor size is large (Full frame)
supports RAW files
weather sealing
lighter than competition in class (489g)
above average ISO range (409,600)
does not have image stabilization
64
screen tilts up and down
has image stabilization (Optical)
sensor size is good (1")
supports RAW formats
features touch to focus
environment proofing
heavier than competition (1,095g)
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Sports Comparison

Sports photography with Sony A7S
Sports photography with Sony RX10 IV
51
maximum shutter speed is high (1/8,000s)
sensor size is large (Full frame)
provides tracking autofocus
weather sealing
slow continuous shooting (5.0 frames/s)
does not have image stabilization
sensor resolution low (12MP)
not so great battery pack (360 CIPA)
does not have phase detect AF
76
excellent zoom range (24-600mm 25.0 x zoom)
quiet mode (1/32,000s)
high frames per second (24.0 frames/s)
has image stabilization (Optical)
megapixel count good (20 megapixels)
sensor size is good (1")
provides tracking autofocus
environment proofing
supports phase detect auto focus
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Travel Comparison

Sony A7S Travel photography information
Sony RX10 IV Travel photography information
58
lighter than competition in class (489g)
weather sealing
not so great battery pack (360 shots)
sensor resolution low (12 megapixels)
screen isn't selfie friendly
56
environment proofing
connects via bluetooth
features touch to focus
megapixel count good (20 megapixels)
flash built-in
fairly wide (24mm)
very long reach (600mm)
missing Time Lapse mode
heavier than competition (1,095g)
display is not selfie friendly
sluggish max aperture (f2.4)
Photography Glossary

Landscape Comparison

Sony A7S Landscape photography details
Sony RX10 IV Landscape photography details
66
you can focus manually
change lenses (Sony E mount)
screen size is decent (3 inches)
sensor size is large (Full frame)
above average ISO range (409,600)
supports RAW files
weather sealing
does not have image stabilization
sensor resolution low (12 megapixels)
not so great battery pack (360 per charge)
62
has manual focus
fairly wide (24mm)
pretty good screen size (3 inch)
has image stabilization (Optical)
megapixel count good (20MP)
sensor size is good (1")
supports RAW formats
environment proofing
can't switch lens (fixed lens mount)
sluggish max aperture (f2.4)
missing Time Lapse mode
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Vlogging Comparison

Sony A7S as a Vlogging camera
Sony RX10 IV as a Vlogging camera
34
provides face detection focusing
high res video (3840 x 2160 resolution)
comes with external microphone socket
lighter than competition in class (489 grams)
screen isn't selfie friendly
does not have image stabilization
29
fairly wide (24mm)
touchscreen capability
has image stabilization (Optical)
provides face detection focus
video res high (3840 x 2160 resolution)
comes with external mic jack
sluggish max aperture (f2.4)
display is not selfie friendly
heavier than competition (1,095 grams)
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Sony A7S vs Sony RX10 IV Specifications

Detailed spec comparison table for Sony A7S and Sony RX10 IV
 Sony Alpha A7SSony Cyber-shot DSC-RX10 IV
General Information
Make Sony Sony
Model type Sony Alpha A7S Sony Cyber-shot DSC-RX10 IV
Class Pro Mirrorless Large Sensor Superzoom
Announced 2014-04-06 2017-09-12
Body design SLR-style mirrorless SLR-like (bridge)
Sensor Information
Powered by Bionz X Bionz X
Sensor type CMOS BSI-CMOS
Sensor size Full frame 1"
Sensor dimensions 35.8 x 23.9mm 13.2 x 8.8mm
Sensor surface area 855.6mm² 116.2mm²
Sensor resolution 12MP 20MP
Anti alias filter
Aspect ratio 3:2 and 16:9 1:1, 4:3, 3:2 and 16:9
Highest Possible resolution 4240 x 2832 5472 x 3648
Maximum native ISO 409600 12800
Maximum enhanced ISO - 25600
Minimum native ISO 100 125
RAW files
Minimum enhanced ISO - 64
Autofocusing
Focus manually
AF touch
AF continuous
AF single
AF tracking
AF selectice
Center weighted AF
Multi area AF
Live view AF
Face detect focusing
Contract detect focusing
Phase detect focusing
Total focus points 25 315
Lens
Lens support Sony E fixed lens
Lens zoom range - 24-600mm (25.0x)
Maximum aperture - f/2.4-4.0
Macro focusing distance - 3cm
Number of lenses 121 -
Focal length multiplier 1 2.7
Screen
Display type Tilting Tilting
Display sizing 3" 3"
Display resolution 1,230 thousand dot 1,440 thousand dot
Selfie friendly
Liveview
Touch friendly
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 2,359 thousand dot 2,359 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.71x 0.7x
Features
Min shutter speed 30 secs 30 secs
Max shutter speed 1/8000 secs 1/2000 secs
Max quiet shutter speed - 1/32000 secs
Continuous shutter speed 5.0fps 24.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Set WB
Image stabilization
Inbuilt flash
Flash distance no built-in flash 10.80 m (at Auto ISO)
Flash settings no built-in flash Auto, fill-flash, slow sync, rear sync, off
External flash
Auto exposure bracketing
WB bracketing
Max flash sync - 1/2000 secs
Exposure
Multisegment
Average
Spot
Partial
AF area
Center weighted
Video features
Video resolutions 3840 x 2160, XAVC S 1080 60p(50Mbps), 30p (50Mbps), 24p (50Mbps). 720 120p (50Mbps). AVCHD 60p (28Mbps), 60i (24Mbps/17Mbps), 24p (24Mbps/17Mbps) 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p) ,1440 x 1080 (30p), 640 x 480 (30p)
Maximum video resolution 3840x2160 3840x2160
Video format MPEG-4, AVCHD, XAVC MPEG-4, AVCHD, XAVC S
Mic input
Headphone input
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 proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 489 gr (1.08 lbs) 1095 gr (2.41 lbs)
Dimensions 127 x 94 x 48mm (5.0" x 3.7" x 1.9") 133 x 94 x 145mm (5.2" x 3.7" x 5.7")
DXO scores
DXO Overall rating 87 not tested
DXO Color Depth rating 23.9 not tested
DXO Dynamic range rating 13.2 not tested
DXO Low light rating 3702 not tested
Other
Battery life 360 photographs 400 photographs
Battery format Battery Pack Battery Pack
Battery ID NP-FW50 NP-FW50
Self timer Yes (2 or 10 sec; continuous (3 or 5 exposures)) Yes (2 or 10 sec, continuous)
Time lapse recording With downloadable app
Type of storage SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Storage slots Single Single
Pricing at release $1,998 $1,698