• 1/2.3 inch 28.1mm2
  • 12.1 megapixels
  • 35.00mm - 140.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 16.0 megapixels
  • 25.00mm - 600.00mm (35mm eq.)

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Differences

Canon A3100 IS advantages over Olympus SZ-31MR

  • Less expensive
    $180 vs $400 (MSRP)
    Save money for lenses or accessories
  • Bigger pixels
    ~ 1.54 vs 1.34 microns
    Better low-light and dynamic range (all else equal)
  • Longer stills battery life
    More info 240 vs 200 shots
    Capture more photos
  • Thinner
    28 mm vs 39 mm
    Thinner
  • Lighter weight
    154g vs 226g
    Lighter weight
  • Longer exposure
    15 vs 4 sec
    Long exposures for night shots
  • Bigger JPEG buffer
    Unlimited vs 5 shots
    Take more JPEG shots before waiting (burst mode)

Olympus SZ-31MR advantages over Canon A3100 IS

  • More telephoto lens reach
    600 mm vs 140 mm
    Capture objects farther away
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video
  • More dots on screen
    920k vs 230k dots
    Can mean greater resolution or a brighter screen
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • More pixels
    16.0 vs 12.1 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Wider angle lens
    25 mm vs 35 mm
    Capture more of the scene
  • Faster JPEG shooting
    7.0 fps vs 0.8 fps
    Faster JPEG shooting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    6400 vs 1600 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Internal flash
    Both provide
    Useful in a pinch for fill flash

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • Eye-level viewfinder
    Neither provide
    You'll be able to frame photos even when the sun is out
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • RAW file ability
    Neither provide
    Gives you more flexibility to develop your photos later
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Manual focus
    Neither provide
    AF is for the weak. Real photographers focus manually.
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • Hot shoe
    Neither provide
    Off-camera flashes open new possibilities
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Bulb shutter
    Neither provide
    Hold the shutter open manually for long exposures

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Review Excerpt

The Competition

Compared to Canon A1100 IS

Canon A3100 IS
Canon A1100 IS
  • $85
  • 1/2.3 inch
  • More dots on screen
  • $200
  • 1/2.3 inch
  • Eye-level viewfinder
  • Longer stills battery life
Olympus SZ-31MR
Canon A1100 IS
  • $400
  • 1/2.3 inch
  • More telephoto lens reach
  • Newer
  • $200
  • 1/2.3 inch
  • Less expensive
  • Eye-level viewfinder

Compared to Panasonic DMC-FH1

Canon A3100 IS
Panasonic DMC-FH1
  • $85
  • 1/2.3 inch
  • $160
  • 1/2.33 inch
  • Longer stills battery life
  • Manual focus
Olympus SZ-31MR
Panasonic DMC-FH1
  • $400
  • 1/2.3 inch
  • More telephoto lens reach
  • HDMI out
  • $160
  • 1/2.33 inch
  • Less expensive
  • Longer stills battery life

Compared to Canon A3000 IS

Canon A3100 IS
Canon A3000 IS
  • $85
  • 1/2.3 inch
  • More pixels
  • $108
  • 1/2.3 inch
  • Less expensive
Olympus SZ-31MR
Canon A3000 IS
  • $400
  • 1/2.3 inch
  • More telephoto lens reach
  • HDMI out
  • $108
  • 1/2.3 inch
  • Less expensive
  • Bigger pixels

Compared to Olympus SZ-30MR

Canon A3100 IS
Olympus SZ-30MR
  • $85
  • 1/2.3 inch
  • Less expensive
  • Bigger pixels
  • $400
  • 1/2.3 inch
  • More telephoto lens reach
  • HDMI out
Olympus SZ-31MR
Olympus SZ-30MR
  • $400
  • 1/2.3 inch
  • More dots on screen
  • Shoots 60p video
  • $400
  • 1/2.3 inch

Compared to Olympus SH-50

Canon A3100 IS
Olympus SH-50
  • $85
  • 1/2.3 inch
  • Less expensive
  • Bigger pixels
  • $279
  • 1/2.3 inch
  • Touchscreen
  • More telephoto lens reach
Olympus SZ-31MR
Olympus SH-50
  • $400
  • 1/2.3 inch
  • More dots on screen
  • Shoots 60p video
  • $279
  • 1/2.3 inch
  • Less expensive
  • Touchscreen
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