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Olympus E-M1 III vs Sony RX100

Portability
67 Imaging
62 Features
96 Overall
75
Olympus OM-D E-M1 Mark III front
 
Sony Cyber-shot DSC-RX100 front
Portability
91 Imaging
50 Features
68 Overall
57

Olympus E-M1 III vs Sony RX100 Key Specs

Olympus E-M1 III
(Full Review)
  • 20MP - Four Thirds Sensor
  • 3" Fully Articulated Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • No Anti-Alias Filter
  • 1/8000s Maximum Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 580g - 134 x 91 x 69mm
  • Launched February 2020
  • Succeeded the Olympus E-M1 II
Sony RX100
(Full Review)
  • 20MP - 1" Sensor
  • 3" Fixed Display
  • ISO 100 - 25600
  • Optical Image Stabilization
  • 1920 x 1080 video
  • 28-100mm (F1.8-4.9) lens
  • 240g - 102 x 58 x 36mm
  • Released August 2012
  • Refreshed by Sony RX100 II
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Olympus E-M1 III vs Sony RX100 Overview

On this page, we are reviewing the Olympus E-M1 III versus Sony RX100, former being a Pro Mirrorless while the other is a Large Sensor Compact by companies Olympus and Sony. The resolution of the E-M1 III (20MP) and the RX100 (20MP) is very close but the E-M1 III (Four Thirds) and RX100 (1") provide totally different sensor measurements.

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The E-M1 III was revealed 7 years later than the RX100 and that is a fairly big difference as far as camera technology is concerned. Both cameras have different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Sony RX100 being a Large Sensor Compact camera.

Before delving into a comprehensive comparison, here is a simple summary of how the E-M1 III scores vs the RX100 with regards to portability, imaging, features and an overall rating.

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

		

		

			
 E-M1 III RX100 
ReleasedFebruary 2020August 2012Fresher by 91 months
Display typeFully ArticulatedFixed Fully Articulating display
Selfie screen  Take selfies
Touch friendly display  Easily navigate
		

	

	
	

		

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

		

		

			
 RX100 E-M1 III 
Display resolution1229k1037kSharper display (+192k dot)
		

	

	
	

		

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

		

		

			
 E-M1 III RX100 
Manually focus  Very accurate focus
Display dimensions3"3"Equal display measurements
		

	

	

	
	
	
	

	

		

		
Olympus E-M1 III vs Sony RX100 Physical Comparison

		

		

			
For anybody who is going to carry your camera, you're going to have to think about its weight and size. The Olympus E-M1 III offers exterior measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs) whilst the Sony RX100 has specifications of 102mm x 58mm x 36mm (4.0" x 2.3" x 1.4") having a weight of 240 grams (0.53 lbs).
Check the Olympus E-M1 III versus Sony RX100 in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses
Take into consideration, the weight of an ILC will change depending on the lens you are employing during that time. Following is a front view proportions comparison of the E-M1 III and the RX100.
Olympus E-M1 III vs Sony RX100 size comparison
Taking into consideration dimensions and weight, the portability score of the E-M1 III and RX100 is 67 and 91 respectively.
Olympus E-M1 III vs Sony RX100 top view buttons comparison		

	

	
	

		

		
Olympus E-M1 III vs Sony RX100 Sensor Comparison

		

		

			
Typically, it's hard to visualise the difference in sensor sizing just by viewing specs. The photograph below will help offer you a greater sense of the sensor measurements in the E-M1 III and RX100.
All in all, each of the cameras have the same megapixel count but not the same sensor sizing. The E-M1 III includes the larger sensor which will make achieving shallower DOF simpler. The fresher E-M1 III will have an edge with regard to sensor innovation.
	
			Olympus E-M1 III vs Sony RX100 sensor size comparison			
		

	

	
	

		

		
Olympus E-M1 III vs Sony RX100 Screen and ViewFinder

		

		

					

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

	
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Photography Type Scores

		

	

	
Portrait Comparison
Olympus E-M1 III Portrait photography factors
Sony RX100 Portrait photography factors
77
 has manual focus
 megapixel count good (20MP)
 sensor size is nice (Four Thirds)
 features face detection focusing
 exports RAW files
64
 has manual focus
 great flash sync speed (1/2,000s)
 decent MP (20MP)
 sensor size is nice (1")
 provides face detect autofocus
 saves RAW files
 no external flash support
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Street Comparison
Olympus E-M1 III Street photography features
Sony RX100 Street photography features
78
 screen can move to multiple angles
 has image stabilization (Sensor based 5-axis)
 sensor size is nice (Four Thirds)
 exports RAW files
 boasts focus by touch
 weather proofing
 great ISO range (25,600)
79
 has image stabilization (Optical)
 sensor size is nice (1")
 saves RAW files
 lighter than competition in class (240 grams)
 very good ISO range (25,600)
 fixed screen
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Sports Comparison
 Olympus E-M1 III as a Sports photography camera
 Sony RX100 as a Sports photography camera
81
 great max shutter speed (1/8,000s)
 quiet shooting (1/32,000s)
 fast shooting (60.0 frames per second)
 has image stabilization (Sensor based 5-axis)
 megapixel count good (20 megapixels)
 sensor size is nice (Four Thirds)
 features tracking autofocus
 weather proofing
 sensor has phase detect AF
65
 has image stabilization (Optical)
 decent MP (20MP)
 sensor size is nice (1")
 provides tracking focus
 doesn't have phase detect autofocus
Photography Glossary
Travel Comparison
 Olympus E-M1 III as a Travel photography camera
 Sony RX100 as a Travel photography camera
79
 weather proofing
 connects via bluetooth
 boasts focus by touch
 megapixel count good (20MP)
 selfie friendly screen
79
 lighter than competition in class (240 grams)
 decent MP (20 megapixels)
 built-in flash
 pretty wide (28mm)
 very good maximum aperture (f1.8)
 screen isn't selfie friendly
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Landscape Comparison
Landscape photography with Olympus E-M1 III
Landscape photography with Sony RX100
81
 has manual focus
 switch lenses (Micro Four Thirds mount)
 good sized screen (3")
 has image stabilization (Sensor based 5-axis)
 megapixel count good (20MP)
 sensor size is nice (Four Thirds)
 doesnt have low pass filter
 great ISO range (25,600)
 exports RAW files
 weather proofing
 2 card slots
74
 has manual focus
 pretty wide (28mm)
 very good maximum aperture (f1.8)
 screen size is decent (3")
 has image stabilization (Optical)
 decent MP (20 megapixels)
 sensor size is nice (1")
 very good ISO range (25,600)
 saves RAW files
 lens is fixed (fixed lens mount)
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Vlogging Comparison
 Olympus E-M1 III as a Vlogging camera
 Sony RX100 as a Vlogging camera
79
 selfie friendly screen
 touchscreen
 has image stabilization (Sensor based 5-axis)
 features face detection focusing
 high res video (4096 x 2160 pxls)
 includes external mic support
38
 pretty wide (28mm)
 very good maximum aperture (f1.8)
 has image stabilization (Optical)
 provides face detect autofocus
 video resolution high (1920 x 1080 resolution)
 lighter than competition in class (240g)
 screen isn't selfie friendly
 doesn't have mic port
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Olympus E-M1 III vs Sony RX100 Specifications

		

		

					

		
		

			Detailed spec comparison table for Olympus E-M1 III and Sony RX100
 Olympus OM-D E-M1 Mark IIISony Cyber-shot DSC-RX100
General Information
Company Olympus Sony
Model Olympus OM-D E-M1 Mark III Sony Cyber-shot DSC-RX100
Class Pro Mirrorless Large Sensor Compact
Launched 2020-02-11 2012-08-28
Body design SLR-style mirrorless Large Sensor Compact
Sensor Information
Processor Chip TruePic IX -
Sensor type CMOS CMOS
Sensor size Four Thirds 1"
Sensor dimensions 17.4 x 13mm 13.2 x 8.8mm
Sensor surface area 226.2mm² 116.2mm²
Sensor resolution 20 megapixel 20 megapixel
Anti aliasing filter    
Aspect ratio 4:3 1:1, 4:3, 3:2 and  16:9
Full resolution 5184 x 3888 5472 x 3648
Max native ISO 25600 25600
Minimum native ISO 200 100
RAW photos    
Minimum boosted ISO 64 -
Autofocusing
Focus manually    
Touch to focus    
Continuous AF    
Single AF    
Tracking AF    
AF selectice    
AF center weighted    
AF multi area    
Live view AF    
Face detection AF    
Contract detection AF    
Phase detection AF    
Number of focus points 121 25
Cross focus points 121 -
Lens
Lens mounting type Micro Four Thirds fixed lens
Lens focal range - 28-100mm (3.6x)
Max aperture - f/1.8-4.9
Macro focus distance - 5cm
Total lenses 107 -
Crop factor 2.1 2.7
Screen
Range of screen Fully Articulated Fixed Type
Screen sizing 3 inch 3 inch
Resolution of screen 1,037 thousand dot 1,229 thousand dot
Selfie friendly    
Liveview    
Touch operation    
Screen technology - WhiteMagic TFT LCD
Viewfinder Information
Viewfinder type Electronic None
Viewfinder resolution 2,360 thousand dot -
Viewfinder coverage 100% -
Viewfinder magnification 0.74x -
Features
Slowest shutter speed 60 seconds 30 seconds
Maximum shutter speed 1/8000 seconds 1/2000 seconds
Maximum silent shutter speed 1/32000 seconds -
Continuous shooting speed 60.0 frames per second 10.0 frames per second
Shutter priority    
Aperture priority    
Manually set exposure    
Exposure compensation Yes Yes
Custom WB    
Image stabilization    
Integrated flash    
Flash range no built-in flash -
Flash modes Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual Auto, On, Off, Slow Sync
External flash    
AEB    
White balance bracketing    
Maximum flash sync 1/250 seconds 1/2000 seconds
Exposure
Multisegment exposure    
Average exposure    
Spot exposure    
Partial exposure    
AF area exposure    
Center weighted exposure    
Video features
Supported video resolutions 4096 x 2160 @ 24p / 237 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 25p / 102 Mbps, MOV, H.264, Linear PCM3840 x 2160 @ 23.98p / 102 Mbps, MOV, H.264, Linear PCM1920 x 1080 @ 60p, MOV, H.264, Linear PCM1920 x 1080 @ 50p, MOV, H.264, Linear PCM1920 x 1080 @ 30p, MOV, H.264, Linear PCM1920 x 1080 @ 25p, MOV, H.264, Linear PCM1920 x 1080 @ 23.98p, MOV, H.264, Linear PCM 1920 x 1080 (60 fps), 1440 x 1080 (30 fps), 1280 x 720 (30 fps), 640 x 480 (30 fps)
Max video resolution 4096x2160 1920x1080
Video format MPEG-4, H.264 MPEG-4, AVCHD
Mic jack    
Headphone jack    
Connectivity
Wireless Built-In Eye-Fi Connected
Bluetooth    
NFC    
HDMI    
USB USB 3.1 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environment seal    
Water proof    
Dust proof    
Shock proof    
Crush proof    
Freeze proof    
Weight 580g (1.28 lb) 240g (0.53 lb)
Physical dimensions 134 x 91 x 69mm (5.3" x 3.6" x 2.7") 102 x 58 x 36mm (4.0" x 2.3" x 1.4")
DXO scores
DXO All around score not tested 66
DXO Color Depth score not tested 22.6
DXO Dynamic range score not tested 12.4
DXO Low light score not tested 390
Other
Battery life 420 photos 330 photos
Form of battery Battery Pack Battery Pack
Battery model BLH-1 NP-BX1
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 sec, Portrait 1/2)
Time lapse recording   With downloadable app
Storage media Dual SD/SDHC/SDXC slots (UHS-II on first slot) SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Storage slots Dual 1
Launch pricing $1,800 $448