• 1/2.33 inch 28.2mm2
  • 12.0 megapixels
  • 28.00mm - 140.00mm (35mm eq.)
  • APS-C 369.7mm2
  • 20.3 megapixels
  • ISO 100 - 12,800

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Differences

Nikon S640 advantages over Samsung NX20

  • Less expensive
    $250 vs $1100 (MSRP)
    Save money for lenses or accessories
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Thinner
    20 mm vs 39 mm
    Thinner

Samsung NX20 advantages over Nikon S640

  • Larger sensor
    APS-C vs 1/2.33 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
    ~ 4.33 vs 1.53 microns
    Better low-light and dynamic range (all else equal)
  • 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
  • Longer stills battery life
    More info 360 vs 270 shots
    Capture more photos
  • 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
    614k 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 12.0 megapixels
    Higher resolution photos
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Higher extended ISO
    12800 vs 6400 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

  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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
  • 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
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Buy the Nikon S640

Your purchases support this site

Buy the Samsung NX20
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Review Excerpt

  • High quality images with lots of detail; Excellent graphical user interface is fun to use; Smart implementation of WiFi makes it relatively easy to share photos wirelessly.

  • Designed so much like a DSLR you may wonder why you shouldn't get a DSLR instead; Some performance issues, particularly slow buffer clearing and shot-to-shot speed; Initial WiFi set-up can be confusing.

  • Read our Samsung NX20 Review

The Competition

Compared to Nikon S570

Nikon S640
Nikon S570
  • $250
  • 1/2.33 inch
  • In-Camera Image Stabilization
  • Longer stills battery life
  • $180
  • 1/2.3 inch
  • Less expensive

Compare Nikon S640 vs Nikon S570

Samsung NX20
Nikon S570
  • $400
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
  • $180
  • 1/2.3 inch
  • Less expensive
  • Thinner

Compare Samsung NX20 vs Nikon S570

Compared to Nikon S5100

Nikon S640
Nikon S5100
  • $250
  • 1/2.33 inch
  • In-Camera Image Stabilization
  • Longer stills battery life
  • $149
  • 1/2.3 inch
  • Less expensive

Compare Nikon S640 vs Nikon S5100

Samsung NX20
Nikon S5100
  • $400
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
  • $149
  • 1/2.3 inch
  • Less expensive
  • Thinner

Compare Samsung NX20 vs Nikon S5100

Compared to Sony DSC-W530

Nikon S640
Sony DSC-W530
  • $250
  • 1/2.33 inch
  • In-Camera Image Stabilization
  • More telephoto lens reach
  • $150
  • 1/2.3 inch
  • Less expensive
  • More pixels

Compare Nikon S640 vs Sony DSC-W530

Samsung NX20
Sony DSC-W530
  • $400
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
  • $150
  • 1/2.3 inch
  • Less expensive
  • Thinner

Compare Samsung NX20 vs Sony DSC-W530

Compared to Pentax K-01

Nikon S640
Pentax K-01
  • $250
  • 1/2.33 inch
  • Less expensive
  • Thinner
  • $359
  • APS-C
  • Focus peaking
  • Larger sensor

Compare Nikon S640 vs Pentax K-01

Samsung NX20
Pentax K-01
  • $400
  • APS-C
  • Eye-level viewfinder
  • Tiltable Screen
  • $359
  • APS-C
  • Lens selection
  • Focus peaking

Compare Samsung NX20 vs Pentax K-01

Compared to Sony NEX-F3

Nikon S640
Sony NEX-F3
  • $250
  • 1/2.33 inch
  • Less expensive
  • In-Camera Image Stabilization
  • $600
  • APS-C
  • Larger sensor
  • Bigger pixels

Compare Nikon S640 vs Sony NEX-F3

Samsung NX20
Sony NEX-F3
  • $400
  • APS-C
  • Eye-level viewfinder
  • Built-in Wi-Fi
  • $600
  • APS-C
  • Lens selection
  • Less expensive

Compare Samsung NX20 vs Sony NEX-F3

Compare Other Cameras?