• APS-C 355.7mm2
  • 14.2 megapixels
  • ISO 100 - 3200
  • APS-C 369.0mm2
  • 20.3 megapixels
  • ISO 100 - 25,600

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Differences

Nikon D3100 advantages over Samsung NX3000

  • Lens selection
    Excellent vs Limited
    Better lens selection gives you more options
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Bigger pixels
    ~ 5.01 vs 4.29 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.40 vs 2.0 sec
    Faster startup lets you catch the moment
  • Longer stills battery life
    More info 550 vs 370 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Bigger JPEG buffer
    100 vs 12 shots
    Take more JPEG shots before waiting (burst mode)

Samsung NX3000 advantages over Nikon D3100

  • Less expensive
    $529 vs $700 (MSRP)
    Save money for lenses or accessories
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • 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
  • Thinner
    39 mm vs 74 mm
    Thinner
  • Lighter weight
    385g vs 777g
    Lighter weight
  • More dots on screen
    461k vs 230k dots
    Can mean greater resolution or a brighter screen
  • More pixels
    20.3 vs 14.2 megapixels
    Higher resolution photos
  • Wider angle kit lens
    24 mm vs 27 mm
    Capture more of the scene with the included lens
  • Faster JPEG shooting
    5.2 fps vs 2.9 fps
    Faster JPEG shooting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    25600 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • 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

  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • In-Camera Image Stabilization
    Neither provide
    Reduces the effects of camera shake at slower shutter speeds
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • 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
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • 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

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

Samsung NX3000
Sony DSLR-A380
  • $950
  • APS-C
  • Less expensive
  • In-camera panoramas
  • $849
  • APS-C
  • Lens selection
  • Eye-level viewfinder

Compare Samsung NX3000 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

Samsung NX3000
Sony A33
  • $950
  • APS-C
  • Less expensive
  • Built-in Wi-Fi
  • $540
  • APS-C
  • Lens selection
  • Eye-level viewfinder

Compare Samsung NX3000 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

Samsung NX3000
Pentax K-r
  • $950
  • APS-C
  • Less expensive
  • In-camera panoramas
  • $850
  • APS-C
  • Lens selection
  • Eye-level viewfinder

Compare Samsung NX3000 vs Pentax K-r

Compared to Fujifilm X-M1

Nikon D3100
Fujifilm X-M1
  • $700
  • APS-C
  • Lens selection
  • Eye-level viewfinder
  • $993
  • APS-C
  • Focus peaking
  • Tiltable Screen

Compare Nikon D3100 vs Fujifilm X-M1

Samsung NX3000
Fujifilm X-M1
  • $950
  • APS-C
  • Less expensive
  • In-camera panoramas
  • $993
  • APS-C
  • Lens selection
  • Focus peaking

Compare Samsung NX3000 vs Fujifilm X-M1

Compared to Canon EOS M3

Nikon D3100
Canon EOS M3
  • $700
  • APS-C
  • Lens selection
  • Eye-level viewfinder
  • $700
  • APS-C
  • Focus peaking
  • Touchscreen

Compare Nikon D3100 vs Canon EOS M3

Samsung NX3000
Canon EOS M3
  • $950
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $700
  • APS-C
  • Focus peaking
  • Touchscreen

Compare Samsung NX3000 vs Canon EOS M3

Compare Other Cameras?