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Olympus E-M1 III vs Pentax WG-1 GPS

Portability
67
Imaging
62
Features
96
Overall
75
Olympus OM-D E-M1 Mark III front
 
Pentax Optio WG-1 GPS front
Portability
93
Imaging
37
Features
31
Overall
34

Olympus E-M1 III vs Pentax WG-1 GPS 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
  • Announced February 2020
  • Superseded the Olympus E-M1 II
Pentax WG-1 GPS
(Full Review)
  • 14MP - 1/2.3" Sensor
  • 2.7" Fixed Screen
  • ISO 80 - 6400
  • 1280 x 720 video
  • 28-140mm (F3.5-5.5) lens
  • 167g - 116 x 59 x 29mm
  • Introduced August 2011
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Olympus E-M1 III vs Pentax WG-1 GPS Overview

Lets look a bit more closely at the Olympus E-M1 III and Pentax WG-1 GPS, one is a Pro Mirrorless and the latter is a Waterproof by manufacturers Olympus and Pentax. There is a big difference between the resolutions of the E-M1 III (20MP) and WG-1 GPS (14MP) and the E-M1 III (Four Thirds) and WG-1 GPS (1/2.3") possess different sensor sizes.

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The E-M1 III was announced 8 years after the WG-1 GPS which is quite a big gap as far as tech is concerned. The two cameras offer different body type with the Olympus E-M1 III being a SLR-style mirrorless camera and the Pentax WG-1 GPS being a Compact camera.

Before going straight into a in-depth comparison, below is a short highlight of how the E-M1 III scores against the WG-1 GPS for portability, imaging, features and an overall mark.

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Reasons to pick Olympus E-M1 III over the Pentax WG-1 GPS

 E-M1 III WG-1 GPS 
IntroducedFebruary 2020August 2011Newer by 104 months
Screen typeFully ArticulatedFixed Fully Articulating screen
Screen sizing3"2.7"Bigger screen (+0.3")
Screen resolution1037k230kCrisper screen (+807k dot)
Selfie screen Easy selfies
Touch friendly screen Quickly navigate

Reasons to pick Pentax WG-1 GPS over the Olympus E-M1 III

 WG-1 GPS E-M1 III 

Common features in the Olympus E-M1 III and Pentax WG-1 GPS

 E-M1 III WG-1 GPS 
Manual focus Very exact focus

Olympus E-M1 III vs Pentax WG-1 GPS Physical Comparison

If you're going to travel with your camera regularly, you will need to factor in its weight and volume. The Olympus E-M1 III provides physical dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs) while the Pentax WG-1 GPS has sizing of 116mm x 59mm x 29mm (4.6" x 2.3" x 1.1") accompanied by a weight of 167 grams (0.37 lbs).

Check the Olympus E-M1 III and Pentax WG-1 GPS in the new Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an Interchangeable Lens Camera will differ based on the lens you choose at that moment. The following is the front view overall size comparison of the E-M1 III versus the WG-1 GPS.

Olympus E-M1 III vs Pentax WG-1 GPS size comparison

Taking into consideration size and weight, the portability score of the E-M1 III and WG-1 GPS is 67 and 93 respectively.

Olympus E-M1 III vs Pentax WG-1 GPS top view buttons comparison

Olympus E-M1 III vs Pentax WG-1 GPS Sensor Comparison

In many cases, it can be hard to visualize the contrast between sensor dimensions simply by reading specs. The pic underneath might offer you a better sense of the sensor dimensions in the E-M1 III and WG-1 GPS.

As you can plainly see, each of the cameras enjoy different megapixel count and different sensor dimensions. The E-M1 III using its bigger sensor is going to make achieving shallow DOF simpler and the Olympus E-M1 III will deliver greater detail with its extra 6 Megapixels. Higher resolution will enable you to crop pictures far more aggressively. The more recent E-M1 III provides a benefit in sensor innovation.

Olympus E-M1 III vs Pentax WG-1 GPS sensor size comparison

Olympus E-M1 III vs Pentax WG-1 GPS Screen and ViewFinder

Olympus E-M1 III vs Pentax WG-1 GPS Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Olympus E-M1 III Portrait photography features
Pentax WG-1 GPS Portrait photography features
77
has manual focus
megapixel count good (20MP)
sensor size is decent (Four Thirds)
includes face detection autofocus
exports RAW files
35
you can focus manually
decent megapixels (14MP)
lack of manual exposure
cannot use external flash
sensor is tiny (1/2.3")
has no RAW files
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Street Comparison

Olympus E-M1 III Street photography factors
Pentax WG-1 GPS Street photography factors
78
screen can move to multiple angles
image stabilization (Sensor based 5-axis)
sensor size is decent (Four Thirds)
exports RAW files
offers touch to focus
environment proofing
above average ISO range (25,600)
54
weather sealing
fixed screen
does not have image stabilization
sensor is tiny (1/2.3")
has no RAW files
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Sports Comparison

Sports photography with Olympus E-M1 III
Sports photography with Pentax WG-1 GPS
81
high shutter speed (1/8,000 seconds)
quiet shutter (1/32,000 seconds)
fast shooting (60.0 fps)
image stabilization (Sensor based 5-axis)
megapixel count good (20MP)
sensor size is decent (Four Thirds)
includes tracking autofocus
environment proofing
sensor has phase detect autofocus
37
decent megapixels (14MP)
provides tracking focus
weather sealing
low frames per second (1.0 frames per second)
no shutter priority
does not have image stabilization
sensor is tiny (1/2.3")
has no phase detect AF
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Travel Comparison

Olympus E-M1 III Travel photography info
Pentax WG-1 GPS Travel photography info
79
environment proofing
has bluetooth
offers touch to focus
megapixel count good (20MP)
display is selfie friendly
71
weather sealing
decent megapixels (14MP)
built-in flash
rather wide (28mm)
screen isn't selfie friendly
slow max aperture (f3.5)
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Landscape Comparison

Olympus E-M1 III as a Landscape photography camera
Pentax WG-1 GPS as a Landscape photography camera
81
has manual focus
switch lenses (Micro Four Thirds mount)
screen is a good size (3 inches)
image stabilization (Sensor based 5-axis)
megapixel count good (20 megapixels)
sensor size is decent (Four Thirds)
does not have anti-alias filter
above average ISO range (25,600)
exports RAW files
environment proofing
two card slots
42
you can focus manually
rather wide (28mm)
decent megapixels (14 megapixels)
weather sealing
lens is fixed (fixed lens mount)
slow max aperture (f3.5)
tiny screen (2.7")
lack of manual exposure
does not have image stabilization
sensor is tiny (1/2.3")
has no RAW files
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Vlogging Comparison

Olympus E-M1 III Vlogging factors
Pentax WG-1 GPS Vlogging factors
79
display is selfie friendly
touchscreen
image stabilization (Sensor based 5-axis)
includes face detection autofocus
video resolution high (4096 x 2160 pixels)
includes external microphone socket
25
rather wide (28mm)
slow max aperture (f3.5)
screen isn't selfie friendly
does not have image stabilization
low quality video (1280 x 720 pxls)
doesn't have microphone socket
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Olympus E-M1 III vs Pentax WG-1 GPS Specifications

Detailed spec comparison table for Olympus E-M1 III and Pentax WG-1 GPS
 Olympus OM-D E-M1 Mark IIIPentax Optio WG-1 GPS
General Information
Make Olympus Pentax
Model Olympus OM-D E-M1 Mark III Pentax Optio WG-1 GPS
Type Pro Mirrorless Waterproof
Announced 2020-02-11 2011-08-16
Physical type SLR-style mirrorless Compact
Sensor Information
Processor Chip TruePic IX -
Sensor type CMOS CCD
Sensor size Four Thirds 1/2.3"
Sensor measurements 17.4 x 13mm 6.17 x 4.55mm
Sensor surface area 226.2mm² 28.1mm²
Sensor resolution 20 megapixels 14 megapixels
Anti aliasing filter
Aspect ratio 4:3 -
Highest resolution 5184 x 3888 4288 x 3216
Highest native ISO 25600 6400
Minimum native ISO 200 80
RAW support
Minimum boosted ISO 64 -
Autofocusing
Focus manually
Touch to focus
Continuous AF
Single AF
Tracking AF
AF selectice
Center weighted AF
AF multi area
Live view AF
Face detection focusing
Contract detection focusing
Phase detection focusing
Number of focus points 121 9
Cross focus points 121 -
Lens
Lens mount Micro Four Thirds fixed lens
Lens focal range - 28-140mm (5.0x)
Highest aperture - f/3.5-5.5
Macro focus distance - 1cm
Total lenses 107 -
Crop factor 2.1 5.8
Screen
Screen type Fully Articulated Fixed Type
Screen sizing 3" 2.7"
Resolution of screen 1,037k dots 230k dots
Selfie friendly
Liveview
Touch display
Screen tech - TFT color LCD with Anti-reflective coating
Viewfinder Information
Viewfinder type Electronic None
Viewfinder resolution 2,360k dots -
Viewfinder coverage 100 percent -
Viewfinder magnification 0.74x -
Features
Lowest shutter speed 60 seconds 4 seconds
Highest shutter speed 1/8000 seconds 1/1500 seconds
Highest silent shutter speed 1/32000 seconds -
Continuous shooting rate 60.0 frames per sec 1.0 frames per sec
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation Yes -
Change WB
Image stabilization
Built-in flash
Flash range no built-in flash 3.90 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, Soft
External flash
AE bracketing
White balance bracketing
Highest flash synchronize 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 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 (30, 15 fps), 640 x 480 (30, 15 fps), 320 x 240 (30, 15 fps)
Highest video resolution 4096x2160 1280x720
Video file format MPEG-4, H.264 Motion JPEG
Microphone port
Headphone port
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 BuiltIn
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 580g (1.28 lbs) 167g (0.37 lbs)
Dimensions 134 x 91 x 69mm (5.3" x 3.6" x 2.7") 116 x 59 x 29mm (4.6" x 2.3" x 1.1")
DXO scores
DXO All around 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 photos 260 photos
Battery type Battery Pack Battery Pack
Battery model BLH-1 D-LI92
Self timer Yes (2 or 12 secs, custom) Yes (2 or 10 sec)
Time lapse shooting
Type of storage Dual SD/SDHC/SDXC slots (UHS-II on first slot) SD/SDHC/SDXC card, Internal
Card slots 2 One
Price at launch $1,800 $350