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Olympus E-M1X vs Sony A7R IV

Portability
54
Imaging
61
Features
93
Overall
73
Olympus OM-D E-M1X front
 
Sony Alpha A7R IV front
Portability
62
Imaging
81
Features
93
Overall
85

Olympus E-M1X vs Sony A7R IV Key Specs

Olympus E-M1X
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Display
  • 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
  • Succeeded the Olympus E-M1 II
Sony A7R IV
(Full Review)
  • 61MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 32000 (Bump 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
  • Launched July 2019
  • Old Model is Sony A7R III
  • Successor is Sony A7R V
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Olympus E-M1X vs Sony A7R IV Overview

Following is a extensive assessment of the Olympus E-M1X vs Sony A7R IV, both Pro Mirrorless cameras by companies Olympus and Sony. There is a huge difference among the image resolutions of the E-M1X (20MP) and A7R IV (61MP) and the E-M1X (Four Thirds) and A7R IV (Full frame) enjoy different sensor size.

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The E-M1X was manufactured 5 months prior to the A7R IV so they are of a similar generation. Each of these cameras offer the identical body type (SLR-style mirrorless).

Before we go straight into a thorough comparison, below is a concise introduction of how the E-M1X scores versus the A7R IV in relation to portability, imaging, features and an overall score.

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

 E-M1X A7R IV 
Screen typeFully ArticulatedTiltingFully Articulating screen
Selfie screen Easy selfies

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

 A7R IV E-M1X 
Screen resolution1440k1037kCrisper screen (+403k dot)

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

 E-M1X A7R IV 
LaunchedJanuary 2019July 2019Same generation
Manually focus Dial exact focusing
Screen sizing3"3"Equivalent screen size
Touch screen Quickly navigate

Olympus E-M1X vs Sony A7R IV Physical Comparison

If you're looking to carry around your camera frequently, you are going to need to take into account its weight and measurements. The Olympus E-M1X has exterior dimensions of 144mm x 147mm x 75mm (5.7" x 5.8" x 3.0") accompanied by a weight of 997 grams (2.20 lbs) and the Sony A7R IV has proportions of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") and a weight of 665 grams (1.47 lbs).

Compare the Olympus E-M1X vs Sony A7R IV in the new Camera with Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an Interchangeable Lens Camera will change depending on the lens you use during that time. The following is the front view measurement comparison of the E-M1X versus the A7R IV.

Olympus E-M1X vs Sony A7R IV size comparison

Looking at size and weight, the portability grade of the E-M1X and A7R IV is 54 and 62 respectively.

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

Olympus E-M1X vs Sony A7R IV Sensor Comparison

Generally, its hard to imagine the gap in sensor sizes merely by checking out technical specs. The pic below will offer you a much better sense of the sensor dimensions in the E-M1X and A7R IV.

As you can tell, both of those cameras enjoy different megapixel count and different sensor sizes. The E-M1X because of its smaller sensor is going to make getting bokeh tougher and the Sony A7R IV will show extra detail due to its extra 41 Megapixels. Higher resolution will allow you to crop photographs far more aggressively.

Olympus E-M1X vs Sony A7R IV sensor size comparison

Olympus E-M1X vs Sony A7R IV Screen and ViewFinder

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

Portrait Comparison

Olympus E-M1X Portrait photography highlights
Sony A7R IV Portrait photography highlights
76
you can focus manually
megapixel count decent (20 megapixels)
sensor size is decent (Four Thirds)
offers face detect autofocus
exports RAW files
88
you can focus manually
resolution is fantastic (61 megapixels)
sensor size is great (Full frame)
supports face detection focusing
delivers RAW formats
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Street Comparison

Street photography with Olympus E-M1X
Street photography with Sony A7R IV
67
screen articulates fully
image stabilization (Sensor based 5-axis)
sensor size is decent (Four Thirds)
exports RAW files
supports touch focus
weather proof
great high ISO (25,600)
more heavy than competitors (997 grams)
79
screen tilts
built in image stabilization (Sensor based 5-axis)
sensor size is great (Full frame)
delivers RAW formats
offers focus via touch
environment sealing
very good high ISO (32,000)
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Sports Comparison

Olympus E-M1X Sports photography highlights
Sony A7R IV Sports photography highlights
80
max shutter speed is good (1/8,000 seconds)
silent mode (1/32,000 seconds)
fast shooting (60.0 fps)
image stabilization (Sensor based 5-axis)
megapixel count decent (20MP)
sensor size is decent (Four Thirds)
offers tracking focus
weather proof
good battery power (870 CIPA)
supports phase detect autofocus
90
great max shutter speed (1/8,000 seconds)
built in image stabilization (Sensor based 5-axis)
resolution is fantastic (61MP)
sensor size is great (Full frame)
supports tracking autofocus
environment sealing
good battery life (670 CIPA)
sensor has phase detect AF
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Travel Comparison

Travel photography with Olympus E-M1X
Travel photography with Sony A7R IV
68
good battery power (870 shots)
weather proof
connects via bluetooth
supports touch focus
megapixel count decent (20MP)
selfie friendly display
more heavy than competitors (997g)
74
good battery life (670 shots)
environment sealing
connects via bluetooth
offers focus via touch
resolution is fantastic (61 megapixels)
does not contain selfie friendly display
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Landscape Comparison

Landscape photography with Olympus E-M1X
Landscape photography with Sony A7R IV
79
you can focus manually
swap lenses (Micro Four Thirds mount)
nice screen size (3 inch)
image stabilization (Sensor based 5-axis)
megapixel count decent (20 megapixels)
sensor size is decent (Four Thirds)
great high ISO (25,600)
exports RAW files
weather proof
good battery power (870 per charge)
2 card slots
88
you can focus manually
switch lenses (Sony E mount)
screen size is good (3")
built in image stabilization (Sensor based 5-axis)
resolution is fantastic (61 megapixels)
sensor size is great (Full frame)
doesnt have anti-alias filter
very good high ISO (32,000)
delivers RAW formats
environment sealing
good battery life (670 CIPA)
has double storage slots
Photography Glossary

Vlogging Comparison

Vlogging with Olympus E-M1X
Vlogging with Sony A7R IV
68
selfie friendly display
touch screen
image stabilization (Sensor based 5-axis)
offers face detect autofocus
high res video (4096 x 2160 pxls)
comes with microphone support
more heavy than competitors (997 grams)
37
touchscreen enabled
built in image stabilization (Sensor based 5-axis)
supports face detection focusing
video resolution high (3840 x 2160 pixels)
includes external microphone port
does not contain selfie friendly display
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Olympus E-M1X vs Sony A7R IV Specifications

Detailed spec comparison table for Olympus E-M1X and Sony A7R IV
 Olympus OM-D E-M1XSony Alpha A7R IV
General Information
Brand Name Olympus Sony
Model type Olympus OM-D E-M1X Sony Alpha A7R IV
Type Pro Mirrorless Pro Mirrorless
Introduced 2019-01-24 2019-07-16
Body design 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 35.8 x 23.8mm
Sensor area 226.2mm² 852.0mm²
Sensor resolution 20MP 61MP
Anti alias filter
Aspect ratio 4:3 1:1, 4:3, 3:2 and 16:9
Peak resolution 5184 x 3888 9504 x 6336
Highest native ISO 25600 32000
Highest enhanced ISO - 102800
Min native ISO 200 100
RAW images
Min enhanced ISO 64 50
Autofocusing
Focus manually
Autofocus touch
Continuous autofocus
Single autofocus
Tracking autofocus
Selective autofocus
Autofocus center weighted
Autofocus multi area
Autofocus live view
Face detect autofocus
Contract detect autofocus
Phase detect autofocus
Total focus points 121 567
Lens
Lens mount type Micro Four Thirds Sony E
Number of lenses 107 121
Focal length multiplier 2.1 1
Screen
Range of display Fully Articulated Tilting
Display diagonal 3 inches 3 inches
Display resolution 1,037k dot 1,440k dot
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 2,360k dot 5,760k dot
Viewfinder coverage 100 percent 100 percent
Viewfinder magnification 0.74x 0.78x
Features
Minimum shutter speed 60 seconds 30 seconds
Fastest shutter speed 1/8000 seconds 1/8000 seconds
Fastest quiet shutter speed 1/32000 seconds -
Continuous shutter speed 60.0fps 10.0fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set white balance
Image stabilization
Built-in flash
Flash distance 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 Flash off, Autoflash, Fill-flash, Slow Sync., Rear Sync., Red-eye reduction, Wireless, Hi-speed sync.
Hot shoe
AEB
White balance bracketing
Fastest flash sync - 1/250 seconds
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM 3840 x 2160 @ 30p / 100 Mbps, XAVC S, MP4, H.264, Linear PCM
Highest video resolution 4096x2160 3840x2160
Video file format MPEG-4, H.264 MPEG-4, XAVC S, H.264
Microphone jack
Headphone jack
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
Environmental seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 997 grams (2.20 pounds) 665 grams (1.47 pounds)
Dimensions 144 x 147 x 75mm (5.7" x 5.8" x 3.0") 129 x 96 x 78mm (5.1" x 3.8" x 3.1")
DXO scores
DXO Overall rating not tested 99
DXO Color Depth rating not tested 26.0
DXO Dynamic range rating not tested 14.8
DXO Low light rating not tested 3344
Other
Battery life 870 images 670 images
Battery form Built-in Battery Pack
Battery ID - NP-FZ100
Self timer Yes (2 or 12 secs, custom) Yes
Time lapse recording
Type of storage - Dual SD/SDHC/SDXC (UHS-II compatible)
Storage slots 2 2
Retail price $2,999 $3,498