• APS-C 332.3mm2
  • 24.2 megapixels
  • ISO 100 - 12,800
  • 1 inch 116.2mm2
  • 20.2 megapixels
  • 24.00mm - 100.00mm (35mm eq.)

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Differences

Canon EOS M3 advantages over Canon G7X Mark III

  • Less expensive
    $549 vs $749*
    Save money for lenses or accessories
  • Larger sensor
    APS-C vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 3.72 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • 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
  • More pixels
    24.2 vs 20.2 megapixels
    Higher resolution photos
  • Bigger JPEG buffer
    Unlimited vs 125 shots
    Take more JPEG shots before waiting (burst mode)

Canon G7X Mark III advantages over Canon EOS M3

  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Fast startup
    ~1.50 vs 2.4 sec
    Faster startup lets you catch the moment
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Higher max flash sync
    1/2000 vs 1/200 sec
    Reduce the effect of ambient light in flash shots
  • Newer
    5 years vs 9 years old
    Newer cameras often support more advanced features
  • Faster JPEG shooting
    20.0 fps vs 4.2 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    30.0 fps vs 4.0 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    76 vs 4 shots
    Larger buffer for RAW shots (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/25600 vs 1/4000 sec
    Shoot wide open in bright light

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
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • 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

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Eye-level viewfinder
    Neither provide
    You'll be able to frame photos even when the sun is out
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

Buy From

Your purchases support this site

Buy the Canon EOS M3

Your purchases support this site

Buy the Canon G7X Mark III

Review Excerpt

  • DSLR image quality & resolution in a mirrorless body; Higher-res 24MP APS-C sensor; Much improved AF performance; Better ergonomics with full PASM dial; Built-in Wi-Fi & NFC; Tilting LCD.

  • No built-in EVF; Limited native lens selection; Slow burst mode; Shallow buffer depth with RAW files; No 60p video frame rate or 4K video option.

The Competition

Compared to Sony A5100

Canon EOS M3
Sony A5100
  • $429
  • APS-C
  • More telephoto lens reach
  • External Mic Jack
  • $348
  • APS-C
  • Lens selection
  • Larger sensor
Canon G7X Mark III
Sony A5100
  • $1074
  • 1 inch
  • In-Camera Image Stabilization
  • Shoot 4K video
  • $348
  • APS-C
  • Less expensive
  • Larger sensor

Compared to Canon G7X Mark II

Canon EOS M3
Canon G7X Mark II
  • $429
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $675
  • 1 inch
  • In-Camera Image Stabilization
  • Integrated ND filter
Canon G7X Mark III
Canon G7X Mark II
  • $1074
  • 1 inch
  • Shoot 4K video
  • In-camera panoramas
  • $675
  • 1 inch
  • Less expensive
  • NFC

Compared to Canon EOS M100

Canon EOS M3
Canon EOS M100
  • $429
  • APS-C
  • More telephoto lens reach
  • External Mic Jack
  • $449
  • APS-C
  • Less expensive
  • Fast startup
Canon G7X Mark III
Canon EOS M100
  • $1074
  • 1 inch
  • In-Camera Image Stabilization
  • Shoot 4K video
  • $449
  • APS-C
  • Less expensive
  • Larger sensor

Compared to Fujifilm X-E3

Canon EOS M3
Fujifilm X-E3
  • $429
  • APS-C
  • Less expensive
  • Tiltable Screen
  • $699
  • APS-C
  • Lens selection
  • Larger sensor
Canon G7X Mark III
Fujifilm X-E3
  • $1074
  • 1 inch
  • In-Camera Image Stabilization
  • Tiltable Screen
  • $699
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compared to Canon G5X Mark II

Canon EOS M3
Canon G5X Mark II
  • $429
  • APS-C
  • Less expensive
  • Larger sensor
  • $899
  • 1 inch
  • Eye-level viewfinder
  • In-Camera Image Stabilization
Canon G7X Mark III
Canon G5X Mark II
  • $1074
  • 1 inch
  • Less expensive
  • External Mic Jack
  • $899
  • 1 inch
  • Eye-level viewfinder
  • More telephoto lens reach
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