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Olympus E-M1 vs Sony RX100 III

Portability
71
Imaging
53
Features
85
Overall
65
Olympus OM-D E-M1 front
 
Sony Cyber-shot DSC-RX100 III front
Portability
89
Imaging
51
Features
77
Overall
61

Olympus E-M1 vs Sony RX100 III Key Specs

Olympus E-M1
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Display
  • ISO 100 - 25600
  • Sensor based 5-axis Image Stabilization
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Micro Four Thirds Mount
  • 497g - 130 x 94 x 63mm
  • Released October 2013
  • Newer Model is Olympus E-M1 II
Sony RX100 III
(Full Review)
  • 20MP - 1" Sensor
  • 3" Tilting Screen
  • ISO 125 - 12800
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 24-70mm (F1.8-2.8) lens
  • 290g - 102 x 58 x 41mm
  • Announced May 2014
  • Superseded the Sony RX100 II
  • Updated by Sony RX100 IV
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Olympus E-M1 vs Sony RX100 III Overview

Following is a thorough review of the Olympus E-M1 vs Sony RX100 III, former is a Pro Mirrorless while the latter is a Large Sensor Compact by competitors Olympus and Sony. The image resolution of the E-M1 (16MP) and the RX100 III (20MP) is relatively well matched but the E-M1 (Four Thirds) and RX100 III (1") come with totally different sensor sizing.

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The E-M1 was brought out 6 months prior to the RX100 III so they are of a similar age. Both of these cameras offer different body type with the Olympus E-M1 being a SLR-style mirrorless camera and the Sony RX100 III being a Large Sensor Compact camera.

Before diving through a comprehensive comparison, below is a brief summation of how the E-M1 matches up versus the RX100 III in terms of portability, imaging, features and an overall score.

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Reasons to pick Olympus E-M1 over the Sony RX100 III

 E-M1 RX100 III 
Touch friendly screen Quickly navigate

Reasons to pick Sony RX100 III over the Olympus E-M1

 RX100 III E-M1 
Screen resolution1229k1037kSharper screen (+192k dot)
Selfie screen Easy selfies

Common features in the Olympus E-M1 and Sony RX100 III

 E-M1 RX100 III 
AnnouncedOctober 2013May 2014Similar age
Manually focus More exact focusing
Screen typeTiltingTiltingTilting screen
Screen sizing3"3"Equivalent screen measurement

Olympus E-M1 vs Sony RX100 III Physical Comparison

For anybody who is planning to carry around your camera, you should think about its weight and size. The Olympus E-M1 offers physical dimensions of 130mm x 94mm x 63mm (5.1" x 3.7" x 2.5") along with a weight of 497 grams (1.10 lbs) while the Sony RX100 III has specifications of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") along with a weight of 290 grams (0.64 lbs).

Analyze the Olympus E-M1 vs Sony RX100 III in our completely new Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will vary depending on the lens you are using during that time. Here is the front view over all size comparison of the E-M1 and the RX100 III.

Olympus E-M1 vs Sony RX100 III size comparison

Looking at size and weight, the portability grade of the E-M1 and RX100 III is 71 and 89 respectively.

Olympus E-M1 vs Sony RX100 III top view buttons comparison

Olympus E-M1 vs Sony RX100 III Sensor Comparison

Often, it is difficult to see the contrast between sensor sizes merely by checking a spec sheet. The pic below will help offer you a stronger sense of the sensor dimensions in the E-M1 and RX100 III.

As you can see, each of these cameras offer different resolutions and different sensor sizes. The E-M1 due to its bigger sensor will make shooting bokeh easier and the Sony RX100 III will give you extra detail having its extra 4MP. Higher resolution will also help you crop shots a little more aggressively.

Olympus E-M1 vs Sony RX100 III sensor size comparison

Olympus E-M1 vs Sony RX100 III Screen and ViewFinder

Olympus E-M1 vs Sony RX100 III Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M1 Portrait photography features
Sony RX100 III Portrait photography features
71
focusing manually
flash sync speed is above average (1/320s)
good megapixels (16MP)
decent sensor size (Four Thirds)
comes with face detection autofocus
delivers RAW formats
64
has manual focus
flash sync speed is above average (1/2,000s)
resolution is good (20MP)
sensor size is decent (1")
features face detection focus
delivers RAW formats
external flash not possible
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Street Comparison

Olympus E-M1 Street photography highlights
Sony RX100 III Street photography highlights
78
has a tilting screen
has image stabilization (Sensor based 5-axis)
decent sensor size (Four Thirds)
delivers RAW formats
features touch focus
weather proofing
lighter than competitors (497g)
good ISO range (25,600)
85
tilting screen
image stabilization (Optical)
sensor size is decent (1")
delivers RAW formats
lighter than competition (290 grams)
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Sports Comparison

Olympus E-M1 Sports photography factors
Sony RX100 III Sports photography factors
70
high shutter speed (1/8,000s)
has image stabilization (Sensor based 5-axis)
good megapixels (16MP)
decent sensor size (Four Thirds)
comes with tracking autofocus
weather proofing
supports phase detect autofocus
terrible battery life (350 per charge)
65
image stabilization (Optical)
resolution is good (20 megapixels)
sensor size is decent (1")
features tracking autofocus
has no phase detect auto focus
Photography Glossary

Travel Comparison

Travel photography with Olympus E-M1
Travel photography with Sony RX100 III
65
lighter than competitors (497 grams)
weather proofing
features touch focus
good megapixels (16MP)
terrible battery life (350 CIPA)
does not feature selfie friendly display
85
lighter than competition (290g)
resolution is good (20 megapixels)
has built in flash
selfie friendly display
relatively wide (24mm)
good max aperture (f1.8)
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Landscape Comparison

Olympus E-M1 as a Landscape photography camera
Sony RX100 III as a Landscape photography camera
73
focusing manually
interchangeable lenses (Micro Four Thirds mount)
pretty good screen size (3")
has image stabilization (Sensor based 5-axis)
good megapixels (16MP)
decent sensor size (Four Thirds)
good ISO range (25,600)
delivers RAW formats
weather proofing
terrible battery life (350 per charge)
73
has manual focus
relatively wide (24mm)
good max aperture (f1.8)
pretty good screen size (3 inches)
image stabilization (Optical)
resolution is good (20 megapixels)
sensor size is decent (1")
delivers RAW formats
can't switch lens (fixed lens mount)
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Vlogging Comparison

Vlogging with Olympus E-M1
Vlogging with Sony RX100 III
36
touchscreen functionality
has image stabilization (Sensor based 5-axis)
comes with face detection autofocus
video res high (1920 x 1080 resolution)
comes with external microphone jack
lighter than competitors (497 grams)
does not feature selfie friendly display
80
relatively wide (24mm)
good max aperture (f1.8)
selfie friendly display
image stabilization (Optical)
features face detection focus
high res video (1920 x 1080 pixels)
lighter than competition (290 grams)
no external microphone jack
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Olympus E-M1 vs Sony RX100 III Specifications

Detailed spec comparison table for Olympus E-M1 and Sony RX100 III
 Olympus OM-D E-M1Sony Cyber-shot DSC-RX100 III
General Information
Manufacturer Olympus Sony
Model type Olympus OM-D E-M1 Sony Cyber-shot DSC-RX100 III
Type Pro Mirrorless Large Sensor Compact
Released 2013-10-28 2014-05-15
Body design SLR-style mirrorless Large Sensor Compact
Sensor Information
Chip TruePIC VII Bionz X
Sensor type CMOS BSI-CMOS
Sensor size Four Thirds 1"
Sensor measurements 17.3 x 13mm 13.2 x 8.8mm
Sensor area 224.9mm² 116.2mm²
Sensor resolution 16MP 20MP
Anti alias filter
Aspect ratio 1:1, 4:3, 3:2 and 16:9 1:1, 4:3, 3:2 and 16:9
Highest Possible resolution 4608 x 3456 5472 x 3648
Maximum native ISO 25600 12800
Min native ISO 100 125
RAW files
Autofocusing
Manual focusing
Touch focus
AF continuous
AF single
Tracking AF
Selective AF
AF center weighted
Multi area AF
AF live view
Face detect AF
Contract detect AF
Phase detect AF
Total focus points 81 25
Lens
Lens mount type Micro Four Thirds fixed lens
Lens zoom range - 24-70mm (2.9x)
Maximum aperture - f/1.8-2.8
Macro focusing range - 5cm
Amount of lenses 107 -
Crop factor 2.1 2.7
Screen
Display type Tilting Tilting
Display diagonal 3" 3"
Resolution of display 1,037 thousand dot 1,229 thousand dot
Selfie friendly
Liveview
Touch capability
Viewfinder Information
Viewfinder Electronic Electronic
Viewfinder resolution 2,360 thousand dot 1,440 thousand dot
Viewfinder coverage 100% 100%
Viewfinder magnification 0.74x 0.59x
Features
Minimum shutter speed 60 secs 30 secs
Fastest shutter speed 1/8000 secs 1/2000 secs
Continuous shutter speed 10.0 frames per sec 10.0 frames per sec
Shutter priority
Aperture priority
Expose Manually
Exposure compensation Yes Yes
Custom WB
Image stabilization
Built-in flash
Flash distance no built-in flash -
Flash settings Flash Auto, Redeye, Fill-in, Flash Off, Red-eye Slow sync (1st curtain), Slow sync (1st curtain), Slow sync (2nd curtain), Manual -
External flash
Auto exposure bracketing
WB bracketing
Fastest flash sync 1/320 secs 1/2000 secs
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 1920 x 1080 (30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps) 1920 x 1080 (60p/60i/24p), 1280 x 720 (60p/30p/24p/120p), 1440 x 1080 (30 fps), 640 x 480 (30 fps)
Maximum video resolution 1920x1080 1920x1080
Video file format H.264, Motion JPEG MPEG-4, AVCHD, XAVC S
Microphone 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
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 497 gr (1.10 lb) 290 gr (0.64 lb)
Dimensions 130 x 94 x 63mm (5.1" x 3.7" x 2.5") 102 x 58 x 41mm (4.0" x 2.3" x 1.6")
DXO scores
DXO Overall rating 73 67
DXO Color Depth rating 23.0 22.4
DXO Dynamic range rating 12.7 12.3
DXO Low light rating 757 495
Other
Battery life 350 pictures 320 pictures
Style of battery Battery Pack Battery Pack
Battery ID BLN-1 NP-BX1
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 sec, self-portrait, continuous)
Time lapse feature With downloadable app
Storage media SD/SDHC/SDXC SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
Storage slots 1 1
Retail price $799 $748