• APS-C 368.2mm2
  • 16.2 megapixels
  • ISO 100 - 6400
  • 1 inch 116.2mm2
  • 20.2 megapixels
  • 24.00mm - 100.00mm (35mm eq.)

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Differences

Nikon D5100 advantages over Canon G7X Mark III

  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    Tilt and swivel the screen for maximum shooting flexibility
  • Larger sensor
    APS-C vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Bigger pixels
    ~ 4.79 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.50 vs 1.5 sec
    Faster startup lets you catch the moment
  • Longer stills battery life
    More info 660 vs 235 shots
    Capture more photos
  • 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

Canon G7X Mark III advantages over Nikon D5100

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • 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
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • 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
  • Thinner
    41 mm vs 79 mm
    Thinner
  • Higher max flash sync
    1/2000 vs 1/200 sec
    Reduce the effect of ambient light in flash shots
  • Newer
    5 years vs 13 years old
    Newer cameras often support more advanced features
  • Less shutter lag
    0.15 vs 0.27 sec
    Focus and take a photo quickly (wide angle)
  • More pixels
    20.2 vs 16.2 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Faster JPEG shooting
    20.0 fps vs 3.9 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 13 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
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • 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

  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • 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 Nikon D5100

Your purchases support this site

Buy the Canon G7X Mark III

Review Excerpt

  • Side-mounted tilt / swivel LCD screen; same sensor and processing as the Nikon D7000; good speed and battery life; in-camera HDR and filter effects; Full HD video capture with aperture control; audio levels control and external microphone jack.

  • AF-S lens mount doesn't offer autofocus with screw-drive lenses; popup flash isn't the greatest; no built-in wireless flash control; HDR function doesn't microalign source images.

The Competition

Compared to Sony A55

Nikon D5100
Sony A55
  • $650
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $734
  • APS-C
  • In-Camera Image Stabilization
  • In-camera panoramas
Canon G7X Mark III
Sony A55
  • $1074
  • 1 inch
  • Focus peaking
  • Shoot 4K video
  • $734
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compared to Sony A33

Nikon D5100
Sony A33
  • $650
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $540
  • APS-C
  • Less expensive
  • In-Camera Image Stabilization
Canon G7X Mark III
Sony A33
  • $1074
  • 1 inch
  • Focus peaking
  • Shoot 4K video
  • $540
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compared to Sony A57

Nikon D5100
Sony A57
  • $650
  • APS-C
  • Lens selection
  • Tilt-swivel screen
  • $800
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
Canon G7X Mark III
Sony A57
  • $1074
  • 1 inch
  • Shoot 4K video
  • Touchscreen
  • $800
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compared to Sony RX100 VA

Nikon D5100
Sony RX100 VA
  • $650
  • APS-C
  • Tilt-swivel screen
  • Larger sensor
  • $998
  • 1 inch
  • Focus peaking
  • In-Camera Image Stabilization
Canon G7X Mark III
Sony RX100 VA
  • $1074
  • 1 inch
  • Less expensive
  • Touchscreen
  • $998
  • 1 inch
  • Slower slow-motion
  • Eye-level viewfinder

Compared to Canon G5X Mark II

Nikon D5100
Canon G5X Mark II
  • $650
  • APS-C
  • Tilt-swivel screen
  • Larger sensor
  • $899
  • 1 inch
  • Focus peaking
  • 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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