• 1 inch 116.2mm2
  • 20.2 megapixels
  • 24.00mm - 120.00mm (35mm eq.)
  • 4/3 226.2mm2
  • 20.4 megapixels
  • ISO 200 - 25,600

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Differences

Canon G5X Mark II advantages over Olympus E-M1 Mark III

  • Less expensive
    $899* vs $2400
    Save money for lenses or accessories
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Thinner
    46 mm vs 68 mm
    Thinner
  • Higher max flash sync
    1/2000 vs 1/250 sec
    Reduce the effect of ambient light in flash shots
  • Lighter weight
    340g vs 580g
    Lighter weight
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos

Olympus E-M1 Mark III advantages over Canon G5X Mark II

  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    Tilt and swivel the screen for maximum shooting flexibility
  • Larger sensor
    4/3 vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 3.36 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Longer video battery life
    90 vs 55 minutes
    Capture more video
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    Both provide
    Make sure you have a fast computer
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera

User reviews

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Buy the Olympus E-M1 Mark III

Review Excerpt

The Competition

Compared to Canon G5X

Canon G5X Mark II
Canon G5X
  • $899
  • 1 inch
  • Shoot 4K video
  • In-camera panoramas
  • $699
  • 1 inch
  • Less expensive
  • Tilt-swivel screen
Olympus E-M1 Mark III
Canon G5X
  • $1433
  • 4/3
  • Larger sensor
  • Bigger pixels
  • $699
  • 1 inch
  • Less expensive
  • NFC

Compared to Canon G7X Mark II

Canon G5X Mark II
Canon G7X Mark II
  • $899
  • 1 inch
  • Eye-level viewfinder
  • Shoot 4K video
  • $619
  • 1 inch
  • Less expensive
  • NFC
Olympus E-M1 Mark III
Canon G7X Mark II
  • $1433
  • 4/3
  • Larger sensor
  • Tilt-swivel screen
  • $619
  • 1 inch
  • Less expensive
  • NFC

Compared to Olympus E-M1 II

Canon G5X Mark II
Olympus E-M1 II
  • $899
  • 1 inch
  • In-camera panoramas
  • Built-in Bluetooth
  • $1274
  • 4/3
  • Tilt-swivel screen
  • Larger sensor
Olympus E-M1 Mark III
Olympus E-M1 II
  • $1433
  • 4/3
  • Newer
  • $1274
  • 4/3
  • Less expensive

Compared to Canon G7X Mark III

Canon G5X Mark II
Canon G7X Mark III
  • $899
  • 1 inch
  • Eye-level viewfinder
  • More telephoto lens reach
  • $732
  • 1 inch
  • Less expensive
  • External Mic Jack
Olympus E-M1 Mark III
Canon G7X Mark III
  • $1433
  • 4/3
  • Tilt-swivel screen
  • Larger sensor
  • $732
  • 1 inch
  • Less expensive
  • In-camera panoramas

Compared to OM System OM-1

Canon G5X Mark II
OM System OM-1
  • $899
  • 1 inch
  • In-camera panoramas
  • Built-in Bluetooth
  • $2200
  • 4/3
  • Larger sensor
  • Tilt-swivel screen
Olympus E-M1 Mark III
OM System OM-1
  • $1433
  • 4/3
  • $2200
  • 4/3
  • Newer
  • Higher-res screen
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