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Olympus E-M1 III vs Panasonic S1

Portability
67
Imaging
62
Features
96
Overall
75
Olympus OM-D E-M1 Mark III front
 
Panasonic Lumix DMC-S1 front
Portability
96
Imaging
35
Features
21
Overall
29

Olympus E-M1 III vs Panasonic S1 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 Max Shutter
  • 4096 x 2160 video
  • Micro Four Thirds Mount
  • 580g - 134 x 91 x 69mm
  • Launched February 2020
  • Replaced the Olympus E-M1 II
Panasonic S1
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 2.7" Fixed Display
  • ISO 100 - 6400
  • Optical Image Stabilization
  • 1280 x 720 video
  • 28-112mm (F3.1-5.6) lens
  • 117g - 99 x 59 x 21mm
  • Announced January 2011
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Olympus E-M1 III vs Panasonic S1 Overview

Its time to take a deeper look at the Olympus E-M1 III vs Panasonic S1, former is a Pro Mirrorless while the other is a Small Sensor Compact by brands Olympus and Panasonic. There exists a substantial gap between the image resolutions of the E-M1 III (20MP) and S1 (12MP) and the E-M1 III (Four Thirds) and S1 (1/2.3") come with totally different sensor size.

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The E-M1 III was announced 9 years after the S1 which is quite a big difference as far as technology is concerned. Each of the cameras offer different body type with the Olympus E-M1 III being a SLR-style mirrorless camera and the Panasonic S1 being a Compact camera.

Before getting straight into a complete comparison, below is a short highlight of how the E-M1 III matches up vs the S1 when considering portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M1 III over the Panasonic S1

 E-M1 III S1 
AnnouncedFebruary 2020January 2011Newer by 111 months
Manual focus More accurate focus
Display typeFully ArticulatedFixed Fully Articulating display
Display sizing3"2.7"Larger display (+0.3")
Display resolution1037k230kCrisper display (+807k dot)
Selfie screen Easy selfies
Touch friendly display Easily navigate

Reasons to pick Panasonic S1 over the Olympus E-M1 III

 S1 E-M1 III 

Common features in the Olympus E-M1 III and Panasonic S1

 E-M1 III S1 

Olympus E-M1 III vs Panasonic S1 Physical Comparison

When you are aiming to travel with your camera often, you'll need to consider its weight and volume. The Olympus E-M1 III has external dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") having a weight of 580 grams (1.28 lbs) while the Panasonic S1 has sizing of 99mm x 59mm x 21mm (3.9" x 2.3" x 0.8") having a weight of 117 grams (0.26 lbs).

See the Olympus E-M1 III vs Panasonic S1 in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Do not forget, the weight of an ILC will differ based on the lens you are using at the time. Here is the front view overall size comparison of the E-M1 III compared to the S1.

Olympus E-M1 III vs Panasonic S1 size comparison

Looking at dimensions and weight, the portability score of the E-M1 III and S1 is 67 and 96 respectively.

Olympus E-M1 III vs Panasonic S1 top view buttons comparison

Olympus E-M1 III vs Panasonic S1 Sensor Comparison

More often than not, it can be hard to visualise the gap between sensor dimensions simply by going over specs. The pic below might give you a more clear sense of the sensor dimensions in the E-M1 III and S1.

All in all, the two cameras enjoy different megapixels and different sensor dimensions. The E-M1 III having a larger sensor will make achieving shallower depth of field easier and the Olympus E-M1 III will offer more detail with its extra 8 Megapixels. Greater resolution will allow you to crop photos far more aggressively. The more modern E-M1 III will have an advantage in sensor technology.

Olympus E-M1 III vs Panasonic S1 sensor size comparison

Olympus E-M1 III vs Panasonic S1 Screen and ViewFinder

Olympus E-M1 III vs Panasonic S1 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M1 III as a Portrait photography camera
Panasonic S1 as a Portrait photography camera
77
has manual focus
resolution is good (20 megapixels)
sensor size is decent (Four Thirds)
provides face detection autofocus
delivers RAW files
21
manual focus not available
manual exposure not possible
can't use external flash
MP count low (12MP)
very small sensor size (1/2.3")
doesn't have RAW support
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Street Comparison

Street photography with Olympus E-M1 III
Street photography with Panasonic S1
78
screen can move to multiple angles
built in image stabilization (Sensor based 5-axis)
sensor size is decent (Four Thirds)
delivers RAW files
boasts touch focus
weather sealing
good high ISO (25,600)
63
built in image stabilization (Optical)
lighter than others (117 grams)
screen is fixed
very small sensor size (1/2.3")
doesn't have RAW support
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Sports Comparison

Olympus E-M1 III Sports photography details
Panasonic S1 Sports photography details
81
max shutter speed is good (1/8,000 seconds)
quiet shutter (1/32,000 seconds)
high frames per second (60.0 frames per second)
built in image stabilization (Sensor based 5-axis)
resolution is good (20 megapixels)
sensor size is decent (Four Thirds)
provides tracking autofocus
weather sealing
sensor has phase detect autofocus
27
built in image stabilization (Optical)
lack of shutter priority mode
MP count low (12MP)
very small sensor size (1/2.3")
doesn't have phase detect auto focus
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Travel Comparison

Olympus E-M1 III Travel photography information
Panasonic S1 Travel photography information
79
weather sealing
has bluetooth
boasts touch focus
resolution is good (20 megapixels)
screen is selfie friendly
62
lighter than others (117g)
has built in flash
reasonably wide (28mm)
doesn't have Time Lapse mode
MP count low (12MP)
does not have selfie friendly screen
sluggish max aperture (f3.1)
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Landscape Comparison

Olympus E-M1 III Landscape photography highlights
Panasonic S1 Landscape photography highlights
81
has manual focus
interchangeable lenses (Micro Four Thirds mount)
good sized screen (3")
built in image stabilization (Sensor based 5-axis)
resolution is good (20MP)
sensor size is decent (Four Thirds)
doesnt have anti-alias filter
good high ISO (25,600)
delivers RAW files
weather sealing
has dual storage slots
32
reasonably wide (28mm)
built in image stabilization (Optical)
manual focus not available
fixed lens (fixed lens mount)
sluggish max aperture (f3.1)
tiny screen (2.7 inch)
manual exposure not possible
MP count low (12MP)
very small sensor size (1/2.3")
doesn't have RAW support
doesn't have Time Lapse mode
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Vlogging Comparison

Olympus E-M1 III Vlogging factors
Panasonic S1 Vlogging factors
79
screen is selfie friendly
touch screen
built in image stabilization (Sensor based 5-axis)
provides face detection autofocus
high res video (4096 x 2160 pixels)
includes external microphone jack
31
reasonably wide (28mm)
built in image stabilization (Optical)
lighter than others (117 grams)
sluggish max aperture (f3.1)
does not have selfie friendly screen
low res video (1280 x 720 resolution)
doesn't have mic port
Photography Glossary

Olympus E-M1 III vs Panasonic S1 Specifications

Detailed spec comparison table for Olympus E-M1 III and Panasonic S1
 Olympus OM-D E-M1 Mark IIIPanasonic Lumix DMC-S1
General Information
Company Olympus Panasonic
Model Olympus OM-D E-M1 Mark III Panasonic Lumix DMC-S1
Class Pro Mirrorless Small Sensor Compact
Launched 2020-02-11 2011-01-05
Body design SLR-style mirrorless Compact
Sensor Information
Processor Chip TruePic IX Venus Engine IV
Sensor type CMOS CCD
Sensor size Four Thirds 1/2.3"
Sensor dimensions 17.4 x 13mm 6.08 x 4.56mm
Sensor surface area 226.2mm² 27.7mm²
Sensor resolution 20MP 12MP
Anti aliasing filter
Aspect ratio 4:3 4:3, 3:2 and 16:9
Max resolution 5184 x 3888 4000 x 3000
Max native ISO 25600 6400
Min native ISO 200 100
RAW photos
Min enhanced ISO 64 -
Autofocusing
Focus manually
AF touch
AF continuous
Single AF
AF tracking
AF selectice
AF center weighted
Multi area AF
Live view AF
Face detection AF
Contract detection AF
Phase detection AF
Number of focus points 121 11
Cross focus points 121 -
Lens
Lens mount Micro Four Thirds fixed lens
Lens focal range - 28-112mm (4.0x)
Largest aperture - f/3.1-5.6
Macro focus distance - 5cm
Total lenses 107 -
Focal length multiplier 2.1 5.9
Screen
Range of screen Fully Articulated Fixed Type
Screen diagonal 3 inch 2.7 inch
Resolution of screen 1,037k dot 230k dot
Selfie friendly
Liveview
Touch capability
Screen technology - TFT LCD
Viewfinder Information
Viewfinder Electronic None
Viewfinder resolution 2,360k dot -
Viewfinder coverage 100 percent -
Viewfinder magnification 0.74x -
Features
Minimum shutter speed 60 secs 8 secs
Fastest shutter speed 1/8000 secs 1/1600 secs
Fastest silent shutter speed 1/32000 secs -
Continuous shutter speed 60.0fps -
Shutter priority
Aperture priority
Manual exposure
Exposure compensation Yes -
Set WB
Image stabilization
Integrated flash
Flash range no built-in flash 3.30 m
Flash options Redeye, Fill-in, Flash Off, Red-eye Slow sync.(1st curtain), Slow sync.(1st curtain), Slow sync.(2nd curtain), Manual Auto, On, Off, Red-Eye reduction
External flash
AEB
WB bracketing
Fastest flash sync 1/250 secs -
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 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 1280 x 720 (30fps), 640 x 480 (30 fps), 320 x 240 (30 fps)
Max video resolution 4096x2160 1280x720
Video file format MPEG-4, H.264 Motion JPEG
Mic jack
Headphone jack
Connectivity
Wireless Built-In None
Bluetooth
NFC
HDMI
USB USB 3.1 Gen 1 (5 GBit/sec) USB 2.0 (480 Mbit/sec)
GPS None None
Physical
Environmental seal
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 580 grams (1.28 pounds) 117 grams (0.26 pounds)
Dimensions 134 x 91 x 69mm (5.3" x 3.6" x 2.7") 99 x 59 x 21mm (3.9" x 2.3" x 0.8")
DXO scores
DXO Overall score not tested not tested
DXO Color Depth score not tested not tested
DXO Dynamic range score not tested not tested
DXO Low light score not tested not tested
Other
Battery life 420 images 240 images
Style of battery Battery Pack Battery Pack
Battery model BLH-1 -
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 sec)
Time lapse feature
Storage media Dual SD/SDHC/SDXC slots (UHS-II on first slot) SD/SDHC/SDXC, Internal
Storage slots 2 One
Pricing at release $1,800 $269