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Olympus E-M10 III vs Sony RX100 IV

Portability
80
Imaging
55
Features
75
Overall
63
Olympus OM-D E-M10 Mark III front
 
Sony Cyber-shot DSC-RX100 IV front
Portability
89
Imaging
52
Features
79
Overall
62

Olympus E-M10 III vs Sony RX100 IV Key Specs

Olympus E-M10 III
(Full Review)
  • 16MP - Four Thirds Sensor
  • 3" Tilting Screen
  • ISO 200 - 25600
  • Sensor based 5-axis Image Stabilization
  • 3840 x 2160 video
  • Micro Four Thirds Mount
  • 410g - 122 x 84 x 50mm
  • Introduced August 2017
  • Replaced the Olympus E-M10 II
  • Replacement is Olympus E-M10 IV
Sony RX100 IV
(Full Review)
  • 20MP - 1" Sensor
  • 3" Tilting Screen
  • ISO 125 - 12800 (Expand to 25600)
  • Optical Image Stabilization
  • 3840 x 2160 video
  • 24-70mm (F1.8-2.8) lens
  • 298g - 102 x 58 x 41mm
  • Announced June 2015
  • Succeeded the Sony RX100 III
  • Replacement is Sony RX100 V
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Olympus E-M10 III vs Sony RX100 IV Overview

Here is a extended review of the Olympus E-M10 III and Sony RX100 IV, former being a Entry-Level Mirrorless while the latter is a Large Sensor Compact by manufacturers Olympus and Sony. The image resolution of the E-M10 III (16MP) and the RX100 IV (20MP) is relatively well matched but the E-M10 III (Four Thirds) and RX100 IV (1") have totally different sensor sizing.

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The E-M10 III was brought out 2 years later than the RX100 IV and that is quite a significant difference as far as tech is concerned. Both the cameras feature different body design with the Olympus E-M10 III being a SLR-style mirrorless camera and the Sony RX100 IV being a Large Sensor Compact camera.

Before diving straight to a in depth comparison, here is a brief view of how the E-M10 III scores versus the RX100 IV in regards to portability, imaging, features and an overall rating.

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Reasons to pick Olympus E-M10 III over the Sony RX100 IV

 E-M10 III RX100 IV 
AnnouncedAugust 2017June 2015Fresher by 28 months
Touch screen Quickly navigate

Reasons to pick Sony RX100 IV over the Olympus E-M10 III

 RX100 IV E-M10 III 
Screen resolution1229k1040kClearer screen (+189k dot)
Selfie screen Take selfies

Common features in the Olympus E-M10 III and Sony RX100 IV

 E-M10 III RX100 IV 
Manually focus Dial accurate focusing
Screen typeTiltingTiltingTilting screen
Screen size3"3"Same screen measurement

Olympus E-M10 III vs Sony RX100 IV Physical Comparison

In case you're going to carry your camera often, you have to factor its weight and measurements. The Olympus E-M10 III has external dimensions of 122mm x 84mm x 50mm (4.8" x 3.3" x 2.0") with a weight of 410 grams (0.90 lbs) while the Sony RX100 IV has proportions of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") with a weight of 298 grams (0.66 lbs).

Compare the Olympus E-M10 III and Sony RX100 IV in our completely new Camera & Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an ILC will differ dependant on the lens you are employing at that time. Below is a front view size comparison of the E-M10 III vs the RX100 IV.

Olympus E-M10 III vs Sony RX100 IV size comparison

Considering size and weight, the portability score of the E-M10 III and RX100 IV is 80 and 89 respectively.

Olympus E-M10 III vs Sony RX100 IV top view buttons comparison

Olympus E-M10 III vs Sony RX100 IV Sensor Comparison

Usually, its tough to envision the difference between sensor sizing purely by checking technical specs. The graphic below will give you a clearer sense of the sensor dimensions in the E-M10 III and RX100 IV.

As you have seen, the two cameras come with different megapixels and different sensor sizing. The E-M10 III because of its bigger sensor will make achieving shallow depth of field easier and the Sony RX100 IV will give more detail having its extra 4 Megapixels. Higher resolution will also make it easier to crop pictures a good deal more aggressively. The more modern E-M10 III will have an edge in sensor tech.

Olympus E-M10 III vs Sony RX100 IV sensor size comparison

Olympus E-M10 III vs Sony RX100 IV Screen and ViewFinder

Olympus E-M10 III vs Sony RX100 IV Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M10 III as a Portrait photography camera
Sony RX100 IV as a Portrait photography camera
73
you can focus manually
sensor resolution is decent (16 megapixels)
good sensor size (Four Thirds)
comes with face detect focusing
saves RAW formats
65
manual focus
flash sync is higher than normal (1/2,000s)
megapixel count decent (20MP)
sensor size is nice (1")
has face detection autofocus
saves RAW formats
cannot use external flash
Photography Glossary

Street Comparison

Olympus E-M10 III Street photography highlights
Sony RX100 IV Street photography highlights
77
tilting screen
has image stabilization (Sensor based 5-axis)
good sensor size (Four Thirds)
saves RAW formats
features focus by touch
above average high ISO (25,600)
more heavy than average (410 grams)
85
screen tilts
built in image stabilization (Optical)
sensor size is nice (1")
saves RAW formats
lighter than competition in class (298 grams)
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Sports Comparison

Olympus E-M10 III as a Sports photography camera
Sony RX100 IV as a Sports photography camera
69
silent mode (1/16,000s)
has image stabilization (Sensor based 5-axis)
sensor resolution is decent (16 megapixels)
good sensor size (Four Thirds)
comes with tracking focus
has no phase detect AF
68
silent mode (1/32,000s)
max frames per second high (16.0 frames per second)
built in image stabilization (Optical)
megapixel count decent (20 megapixels)
sensor size is nice (1")
has tracking autofocus
no phase detect autofocus
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Travel Comparison

Olympus E-M10 III as a Travel photography camera
Sony RX100 IV as a Travel photography camera
67
features focus by touch
sensor resolution is decent (16 megapixels)
built-in flash
more heavy than average (410g)
screen is not selfie friendly
86
lighter than competition in class (298 grams)
megapixel count decent (20 megapixels)
has built in flash
selfie friendly display
really wide (24mm)
fast max aperture (f1.8)
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Landscape Comparison

Landscape photography with Olympus E-M10 III
Landscape photography with Sony RX100 IV
80
you can focus manually
swap lenses (Micro Four Thirds mount)
pretty good screen size (3")
has image stabilization (Sensor based 5-axis)
sensor resolution is decent (16MP)
good sensor size (Four Thirds)
above average high ISO (25,600)
saves RAW formats
74
manual focus
really wide (24mm)
fast max aperture (f1.8)
screen size is decent (3 inch)
built in image stabilization (Optical)
megapixel count decent (20MP)
sensor size is nice (1")
saves RAW formats
lens is fixed (fixed lens mount)
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Vlogging Comparison

Olympus E-M10 III Vlogging info
Sony RX100 IV Vlogging info
32
touchscreen enabled
has image stabilization (Sensor based 5-axis)
comes with face detect focusing
high quality video (3840 x 2160 pxls)
screen is not selfie friendly
no microphone socket
more heavy than average (410g)
81
really wide (24mm)
fast max aperture (f1.8)
selfie friendly display
built in image stabilization (Optical)
has face detection autofocus
video resolution high (3840 x 2160 pixels)
lighter than competition in class (298 grams)
doesn't have external microphone socket
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Olympus E-M10 III vs Sony RX100 IV Specifications

Detailed spec comparison table for Olympus E-M10 III and Sony RX100 IV
 Olympus OM-D E-M10 Mark IIISony Cyber-shot DSC-RX100 IV
General Information
Make Olympus Sony
Model type Olympus OM-D E-M10 Mark III Sony Cyber-shot DSC-RX100 IV
Category Entry-Level Mirrorless Large Sensor Compact
Introduced 2017-08-31 2015-06-10
Physical type SLR-style mirrorless Large Sensor Compact
Sensor Information
Powered by TruePic VIII Bionz X
Sensor type CMOS BSI-CMOS
Sensor size Four Thirds 1"
Sensor measurements 17.4 x 13mm 13.2 x 8.8mm
Sensor surface area 226.2mm² 116.2mm²
Sensor resolution 16 megapixel 20 megapixel
Anti alias filter
Aspect ratio 4:3 1:1, 4:3, 3:2 and 16:9
Highest resolution 4608 x 3456 5472 x 3648
Highest native ISO 25600 12800
Highest boosted ISO - 25600
Minimum native ISO 200 125
RAW support
Minimum boosted ISO 100 80
Autofocusing
Manual focusing
Autofocus touch
Autofocus continuous
Autofocus single
Autofocus tracking
Autofocus selectice
Autofocus center weighted
Multi area autofocus
Live view autofocus
Face detection focus
Contract detection focus
Phase detection focus
Total focus points 121 25
Lens
Lens support Micro Four Thirds fixed lens
Lens zoom range - 24-70mm (2.9x)
Highest aperture - f/1.8-2.8
Macro focusing range - 5cm
Number of lenses 107 -
Focal length multiplier 2.1 2.7
Screen
Type of screen Tilting Tilting
Screen sizing 3" 3"
Resolution of screen 1,040 thousand dots 1,229 thousand dots
Selfie friendly
Liveview
Touch operation
Viewfinder Information
Viewfinder type Electronic Electronic
Viewfinder resolution 2,360 thousand dots 2,359 thousand dots
Viewfinder coverage 100% 100%
Viewfinder magnification 0.62x 0.59x
Features
Slowest shutter speed 60 secs 30 secs
Maximum shutter speed 1/4000 secs 1/2000 secs
Maximum silent shutter speed 1/16000 secs 1/32000 secs
Continuous shooting rate 8.6fps 16.0fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes Yes
Set white balance
Image stabilization
Integrated flash
Flash distance 5.80 m (at ISO 100) -
Flash settings Auto, redeye, slow sync, 2nd-curtain slow sync, redeye slow sync, fill-in, manual, off -
Hot shoe
AE bracketing
WB bracketing
Maximum flash synchronize 1/250 secs 1/2000 secs
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 3840 x 2160 @ 30p / 102 Mbps, MOV, H.264, Linear PCM 3840 x 2160 (30p, 25p, 24p), 1920 x 1080 (60p/60i/24p), 1280 x 720 (60p/30p/24p/120p), 1440 x 1080 (30 fps), 640 x 480 (30 fps)
Highest video resolution 3840x2160 3840x2160
Video data format MPEG-4, H.264 MPEG-4, AVCHD, XAVC S
Microphone port
Headphone port
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 sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 410 gr (0.90 lbs) 298 gr (0.66 lbs)
Physical dimensions 122 x 84 x 50mm (4.8" x 3.3" x 2.0") 102 x 58 x 41mm (4.0" x 2.3" x 1.6")
DXO scores
DXO All around rating not tested 70
DXO Color Depth rating not tested 22.9
DXO Dynamic range rating not tested 12.6
DXO Low light rating not tested 562
Other
Battery life 330 images 280 images
Form of battery Battery Pack Battery Pack
Battery ID BLS-50 NP-BX1
Self timer Yes (2 or 12 secs, custom) Yes
Time lapse shooting With downloadable app
Storage type SD/SDHC/SDXC (UHS-I/II supported) SD/ SDHC/SDXC, Memory Stick Pro Duo/ Pro-HG Duo
Card slots 1 1
Cost at launch $650 $898