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Olympus E-M1X vs Sony A7R III

Portability
54
Imaging
62
Features
93
Overall
74
Olympus OM-D E-M1X front
 
Sony Alpha A7R III front
Portability
63
Imaging
78
Features
93
Overall
84

Olympus E-M1X vs Sony A7R III Key Specs

Olympus E-M1X
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 997g - 144 x 147 x 75mm
  • Introduced January 2019
  • Old Model is Olympus E-M1 II
Sony A7R III
(Full Review)
  • 42MP - Full frame Sensor
  • 3" Tilting Display
  • ISO 100 - 32000 (Expand to 102400)
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 3840 x 2160 video
  • Sony E Mount
  • 657g - 127 x 96 x 74mm
  • Announced October 2017
  • Earlier Model is Sony A7R II
  • Later Model is Sony A7R IV
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Olympus E-M1X vs Sony A7R III Overview

Below is a extensive analysis of the Olympus E-M1X versus Sony A7R III, both Pro Mirrorless digital cameras by companies Olympus and Sony. There is a substantial difference between the resolutions of the E-M1X (20MP) and A7R III (42MP) and the E-M1X (Four Thirds) and A7R III (Full frame) offer different sensor sizes.

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The E-M1X was announced 16 months later than the A7R III making them a generation apart from each other. Both of the cameras have the same body design (SLR-style mirrorless).

Before getting into a complete comparison, here is a concise summation of how the E-M1X matches up against the A7R III when it comes to portability, imaging, features and an overall grade.

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Reasons to pick Olympus E-M1X over the Sony A7R III

 E-M1X A7R III 
AnnouncedJanuary 2019October 2017More recent by 16 months
Display typeFully ArticulatedTiltingFully Articulating display
Selfie screen Take selfies

Reasons to pick Sony A7R III over the Olympus E-M1X

 A7R III E-M1X 
Display resolution1440k1037kCrisper display (+403k dot)

Common features in the Olympus E-M1X and Sony A7R III

 E-M1X A7R III 
Manual focus More precise focus
Display dimensions3"3"Equal display dimensions
Touch friendly display Easily navigate

Olympus E-M1X vs Sony A7R III Physical Comparison

For anyone who is aiming to lug around your camera, you will need to consider its weight and volume. The Olympus E-M1X comes with physical measurements of 144mm x 147mm x 75mm (5.7" x 5.8" x 3.0") accompanied by a weight of 997 grams (2.20 lbs) while the Sony A7R III has sizing of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") having a weight of 657 grams (1.45 lbs).

See the Olympus E-M1X versus Sony A7R III in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an ILC will vary dependant on the lens you select at the time. Below is a front view measurement comparison of the E-M1X vs the A7R III.

Olympus E-M1X vs Sony A7R III size comparison

Taking into consideration size and weight, the portability rating of the E-M1X and A7R III is 54 and 63 respectively.

Olympus E-M1X vs Sony A7R III top view buttons comparison

Olympus E-M1X vs Sony A7R III Sensor Comparison

Often, it is very tough to picture the gap between sensor measurements simply by reading through a spec sheet. The photograph underneath may provide you a better sense of the sensor measurements in the E-M1X and A7R III.

Clearly, both of the cameras have different megapixels and different sensor measurements. The E-M1X using its tinier sensor is going to make shooting bokeh harder and the Sony A7R III will give greater detail with its extra 22MP. Greater resolution will also enable you to crop pics a bit more aggressively. The newer E-M1X should have an edge with regard to sensor innovation.

Olympus E-M1X vs Sony A7R III sensor size comparison

Olympus E-M1X vs Sony A7R III Screen and ViewFinder

Olympus E-M1X vs Sony A7R III Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M1X Portrait photography information
Sony A7R III Portrait photography information
77
you can focus manually
MP count decent (20MP)
nice sensor size (Four Thirds)
offers face detect autofocus
saves RAW files
86
manual focus
high MP (42MP)
sensor size is big (Full frame)
has face detection focus
exports RAW files
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Street Comparison

Olympus E-M1X Street photography information
Sony A7R III Street photography information
67
fully articulated screen
has image stabilization (Sensor based 5-axis)
nice sensor size (Four Thirds)
saves RAW files
offers touch to focus
environment proofing
good high ISO (25,600)
more heavy than competition in class (997 grams)
79
tilting screen
built in image stabilization (Sensor based 5-axis)
sensor size is big (Full frame)
exports RAW files
features focus by touch
weather sealing
great ISO range (32,000)
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Sports Comparison

Olympus E-M1X Sports photography info
Sony A7R III Sports photography info
81
great max shutter speed (1/8,000 seconds)
silent shooting (1/32,000 seconds)
max frames per second high (60.0 frames/s)
has image stabilization (Sensor based 5-axis)
MP count decent (20 megapixels)
nice sensor size (Four Thirds)
offers tracking focus
environment proofing
good battery (870 shots)
sensor has phase detect autofocus
89
maximum shutter speed is high (1/8,000 seconds)
built in image stabilization (Sensor based 5-axis)
high MP (42MP)
sensor size is big (Full frame)
has tracking autofocus
weather sealing
good battery power (650 shots)
supports phase detect auto focus
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Travel Comparison

Travel photography with Olympus E-M1X
Travel photography with Sony A7R III
68
good battery (870 per charge)
environment proofing
connects via bluetooth
offers touch to focus
MP count decent (20MP)
selfie friendly screen
more heavy than competition in class (997g)
74
good battery power (650 shots)
weather sealing
has bluetooth
features focus by touch
high MP (42 megapixels)
screen isn't selfie friendly
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Landscape Comparison

Olympus E-M1X Landscape photography information
Sony A7R III Landscape photography information
80
you can focus manually
change lenses (Micro Four Thirds mount)
screen size is decent (3")
has image stabilization (Sensor based 5-axis)
MP count decent (20 megapixels)
nice sensor size (Four Thirds)
good high ISO (25,600)
saves RAW files
environment proofing
good battery (870 shots)
has dual storage slots
87
manual focus
swap lenses (Sony E mount)
pretty good screen size (3 inch)
built in image stabilization (Sensor based 5-axis)
high MP (42 megapixels)
sensor size is big (Full frame)
no low pass filter
great ISO range (32,000)
exports RAW files
weather sealing
good battery power (650 per charge)
2 card slots
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Vlogging Comparison

Olympus E-M1X Vlogging information
Sony A7R III Vlogging information
68
selfie friendly screen
touchscreen enabled
has image stabilization (Sensor based 5-axis)
offers face detect autofocus
high quality video (4096 x 2160 resolution)
includes microphone jack
more heavy than competition in class (997g)
37
touch screen
built in image stabilization (Sensor based 5-axis)
has face detection focus
video res high (3840 x 2160 pixels)
comes with external microphone support
screen isn't selfie friendly
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Olympus E-M1X vs Sony A7R III Specifications

Detailed spec comparison table for Olympus E-M1X and Sony A7R III
 Olympus OM-D E-M1XSony Alpha A7R III
General Information
Make Olympus Sony
Model Olympus OM-D E-M1X Sony Alpha A7R III
Category Pro Mirrorless Pro Mirrorless
Introduced 2019-01-24 2017-10-25
Physical type SLR-style mirrorless SLR-style mirrorless
Sensor Information
Powered by Dual TruePic VIII Bionz X
Sensor type CMOS BSI-CMOS
Sensor size Four Thirds Full frame
Sensor measurements 17.4 x 13mm 35.9 x 24mm
Sensor surface area 226.2mm² 861.6mm²
Sensor resolution 20MP 42MP
Anti aliasing filter
Aspect ratio 4:3 3:2 and 16:9
Maximum resolution 5184 x 3888 7952 x 5304
Maximum native ISO 25600 32000
Maximum boosted ISO - 102400
Min native ISO 200 100
RAW photos
Min boosted ISO 64 50
Autofocusing
Focus manually
Touch to focus
Autofocus continuous
Autofocus single
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detection autofocus
Contract detection autofocus
Phase detection autofocus
Number of focus points 121 425
Lens
Lens mounting type Micro Four Thirds Sony E
Number of lenses 107 121
Crop factor 2.1 1
Screen
Screen type Fully Articulated Tilting
Screen size 3 inch 3 inch
Screen resolution 1,037k dots 1,440k dots
Selfie friendly
Liveview
Touch functionality
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 2,360k dots 3,686k dots
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.74x 0.78x
Features
Lowest shutter speed 60s 30s
Highest shutter speed 1/8000s 1/8000s
Highest silent shutter speed 1/32000s -
Continuous shooting rate 60.0fps 10.0fps
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Change white balance
Image stabilization
Integrated flash
Flash range no built-in flash no built-in flash
Flash settings Redeye, Fill-in, Flash Off, Red-eye Slow sync (1st curtain), Slow sync.(1st curtain), Slow sync (2nd curtain), manual Off, Auto, Fill-flash, Slow Sync, Rear Sync, Red-eye reduction, Wireless, Hi-speed sync
External flash
Auto exposure bracketing
WB bracketing
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Supported video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)
Maximum video resolution 4096x2160 3840x2160
Video file format MPEG-4, H.264 MPEG-4, AVCHD, XAVC S
Microphone support
Headphone support
Connectivity
Wireless Built-In Built-In
Bluetooth
NFC
HDMI
USB Yes (USB-PD allows charging by laptop or external power bank) USB 3.1 Gen 1(5 GBit/sec)
GPS Built-in None
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 997g (2.20 pounds) 657g (1.45 pounds)
Physical dimensions 144 x 147 x 75mm (5.7" x 5.8" x 3.0") 127 x 96 x 74mm (5.0" x 3.8" x 2.9")
DXO scores
DXO All around score not tested 100
DXO Color Depth score not tested 26.0
DXO Dynamic range score not tested 14.7
DXO Low light score not tested 3523
Other
Battery life 870 photographs 650 photographs
Style of battery Built-in Battery Pack
Battery model - NP-FZ100
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse recording
Storage type - Two SD/SDHC/SDXC slots (UHS-II support on one)
Card slots 2 2
Cost at launch $2,999 $2,800