• 1/2.3 inch 28.1mm2
  • 14.1 megapixels
  • 26.00mm - 130.00mm (35mm eq.)
  • 4/3 226.2mm2
  • 20.3 megapixels
  • ISO 200 - 25,600

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Differences

Nikon S3100 advantages over Olympus E-P7

  • Thinner
    18 mm vs 38 mm
    Thinner
  • Lighter weight
    118g vs 337g
    Lighter weight

Olympus E-P7 advantages over Nikon S3100

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    4/3 vs 1/2.3 inch
    More sensor area. Bigger is (generally) better.
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Bigger pixels
    ~ 3.36 vs 1.43 microns
    Better low-light and dynamic range (all else equal)
  • Shoot 4K video
    4K (UHD) vs 720p
    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
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Manual focus
    Yes vs No
    AF is for the weak. Real photographers focus manually.
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • More dots on screen
    1037k vs 230k dots
    Can mean greater resolution or a brighter screen
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • More pixels
    20.3 vs 14.1 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    25600 vs 3200 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • 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
  • 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
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • 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
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

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Review Excerpt

The Competition

Compared to Nikon S4000

Nikon S3100
Nikon S4000
  • $140
  • 1/2.3 inch
  • Less expensive
  • More telephoto lens reach
  • $200
  • 1/2.3 inch
  • More dots on screen
Olympus E-P7
Nikon S4000
  • $0
  • 4/3
  • Focus peaking
  • Larger sensor
  • $200
  • 1/2.3 inch
  • Thinner
  • Lighter weight

Compared to Pentax RS1000

Nikon S3100
Pentax RS1000
  • $140
  • 1/2.3 inch
  • More telephoto lens reach
  • $117
  • 1/2.3 inch
  • Higher extended ISO
Olympus E-P7
Pentax RS1000
  • $0
  • 4/3
  • Focus peaking
  • Larger sensor
  • $117
  • 1/2.3 inch
  • Thinner
  • Lighter weight

Compared to Nikon S4100

Nikon S3100
Nikon S4100
  • $140
  • 1/2.3 inch
  • Less expensive
  • $180
  • 1/2.3 inch
  • More dots on screen
Olympus E-P7
Nikon S4100
  • $0
  • 4/3
  • Focus peaking
  • Larger sensor
  • $180
  • 1/2.3 inch
  • Thinner
  • Lighter weight

Compared to Sony W620

Nikon S3100
Sony W620
  • $140
  • 1/2.3 inch
  • $143
  • 1/2.3 inch
  • Less expensive
Olympus E-P7
Sony W620
  • $0
  • 4/3
  • Focus peaking
  • Larger sensor
  • $143
  • 1/2.3 inch
  • Thinner
  • Lighter weight

Compared to Sony W710

Nikon S3100
Sony W710
  • $140
  • 1/2.3 inch
  • $99
  • 1/2.3 inch
  • Less expensive
  • Focus peaking
Olympus E-P7
Sony W710
  • $0
  • 4/3
  • Larger sensor
  • In-Camera Image Stabilization
  • $99
  • 1/2.3 inch
  • Thinner
  • Lighter weight
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