• APS-C 355.7mm2
  • 14.2 megapixels
  • ISO 100 - 3200
  • APS-C 366.6mm2
  • 24.2 megapixels
  • ISO 100 - 32,000

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Differences

Nikon D3100 advantages over Sony A6600

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Bigger pixels
    ~ 5.01 vs 3.92 microns
    Better low-light and dynamic range (all else equal)
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash

Sony A6600 advantages over Nikon D3100

  • 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
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Longer stills battery life
    More info 810 vs 550 shots
    Capture more photos
  • More telephoto lens reach
    203 mm vs 83 mm
    Capture objects farther away with the kit lens
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Newer
    5 years vs 14 years old
    Newer cameras often support more advanced features
  • More dots on screen
    922k vs 230k dots
    Can mean greater resolution or a brighter screen
  • More viewfinder magnification
    0.70x vs 0.53x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    24.2 vs 14.2 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Faster JPEG shooting
    11.0 fps vs 2.9 fps
    Faster JPEG shooting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    102400 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • 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
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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

User reviews

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Review Excerpt

The Competition

Compared to Sony DSLR-A380

Nikon D3100
Sony DSLR-A380
  • $700
  • APS-C
  • Lens selection
  • Less expensive
  • $849
  • APS-C
  • In-Camera Image Stabilization
  • Tiltable Screen

Compare Nikon D3100 vs Sony DSLR-A380

Sony A6600
Sony DSLR-A380
  • $1131
  • APS-C
  • Focus peaking
  • Shoot 4K video
  • $849
  • APS-C
  • Bigger pixels
  • Internal flash

Compare Sony A6600 vs Sony DSLR-A380

Compared to Sony A33

Nikon D3100
Sony A33
  • $700
  • APS-C
  • Lens selection
  • Fast startup
  • $540
  • APS-C
  • In-Camera Image Stabilization
  • In-camera panoramas

Compare Nikon D3100 vs Sony A33

Sony A6600
Sony A33
  • $1131
  • APS-C
  • Focus peaking
  • Shoot 4K video
  • $540
  • APS-C
  • Bigger pixels
  • In-camera panoramas

Compare Sony A6600 vs Sony A33

Compared to Pentax K-r

Nikon D3100
Pentax K-r
  • $700
  • APS-C
  • Less expensive
  • Higher effective ISO
  • $850
  • APS-C
  • In-Camera Image Stabilization
  • Fast startup

Compare Nikon D3100 vs Pentax K-r

Sony A6600
Pentax K-r
  • $1131
  • APS-C
  • Focus peaking
  • Shoot 4K video
  • $850
  • APS-C
  • Lens selection
  • Bigger pixels

Compare Sony A6600 vs Pentax K-r

Compared to Fujifilm X-T2

Nikon D3100
Fujifilm X-T2
  • $700
  • APS-C
  • Lens selection
  • Bigger pixels
  • $999
  • APS-C
  • Focus peaking
  • Shoot 4K video

Compare Nikon D3100 vs Fujifilm X-T2

Sony A6600
Fujifilm X-T2
  • $1131
  • APS-C
  • In-Camera Image Stabilization
  • Touchscreen
  • $999
  • APS-C
  • Less expensive
  • In-camera panoramas

Compare Sony A6600 vs Fujifilm X-T2

Compared to Fujifilm X-T3

Nikon D3100
Fujifilm X-T3
  • $700
  • APS-C
  • Lens selection
  • Bigger pixels
  • $1299
  • APS-C
  • Focus peaking
  • Shoot 4K video

Compare Nikon D3100 vs Fujifilm X-T3

Sony A6600
Fujifilm X-T3
  • $1131
  • APS-C
  • In-Camera Image Stabilization
  • NFC
  • $1299
  • APS-C
  • In-camera panoramas
  • Higher max flash sync

Compare Sony A6600 vs Fujifilm X-T3

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