• APS-C 369.7mm2
  • 12.4 megapixels
  • ISO 200 - 6400
  • APS-C 369.7mm2
  • 20.3 megapixels
  • ISO 100 - 12,800

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Differences

Pentax K-x advantages over Samsung NX20

  • Lens selection
    Excellent vs Limited
    Better lens selection gives you more options
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Bigger pixels
    ~ 5.53 vs 4.33 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.60 vs 3.0 sec
    Faster startup lets you catch the moment
  • Less shutter lag
    0.10 vs 0.35 sec
    Focus and take a photo quickly (wide angle)
  • Bigger JPEG buffer
    25 vs 11 shots
    Take more JPEG shots before waiting (burst mode)

Samsung NX20 advantages over Pentax K-x

  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Thinner
    39 mm vs 69 mm
    Thinner
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video
  • More dots on screen
    614k 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 viewfinder magnification
    0.69x vs 0.57x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    20.3 vs 12.4 megapixels
    Higher resolution photos
  • Faster JPEG shooting
    7.5 fps vs 4.3 fps
    Faster JPEG shooting (burst mode)

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • 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
  • 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
  • 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
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Buy the Samsung NX20
Kit with 18-55mm Lens
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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 Sony DSLR-A380

Pentax K-x
Sony DSLR-A380
  • $702
  • APS-C
  • Lens selection
  • Less expensive
  • $849
  • APS-C
  • Tiltable Screen
  • HDMI out

Compare Pentax K-x vs Sony DSLR-A380

Samsung NX20
Sony DSLR-A380
  • $400
  • APS-C
  • Built-in Wi-Fi
  • Higher effective ISO
  • $849
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization

Compare Samsung NX20 vs Sony DSLR-A380

Compared to Pentax K-7

Pentax K-x
Pentax K-7
  • $702
  • APS-C
  • Less expensive
  • Higher effective ISO
  • $1300
  • APS-C
  • Longer stills battery life
  • Top deck display

Compare Pentax K-x vs Pentax K-7

Samsung NX20
Pentax K-7
  • $400
  • APS-C
  • Tiltable Screen
  • Built-in Wi-Fi
  • $1300
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization

Compare Samsung NX20 vs Pentax K-7

Compared to Pentax K-r

Pentax K-x
Pentax K-r
  • $702
  • APS-C
  • Less expensive
  • Shoots 24p video
  • $850
  • APS-C
  • Fast startup
  • External Mic Jack

Compare Pentax K-x vs Pentax K-r

Samsung NX20
Pentax K-r
  • $400
  • APS-C
  • Tiltable Screen
  • Built-in Wi-Fi
  • $850
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization

Compare Samsung NX20 vs Pentax K-r

Compared to Pentax K-01

Pentax K-x
Pentax K-01
  • $702
  • APS-C
  • Less expensive
  • Eye-level viewfinder
  • $359
  • APS-C
  • Focus peaking
  • Higher effective ISO

Compare Pentax K-x 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

Pentax K-x
Sony NEX-F3
  • $702
  • APS-C
  • Lens selection
  • Eye-level viewfinder
  • $600
  • APS-C
  • In-camera panoramas
  • Tiltable Screen

Compare Pentax K-x vs Sony NEX-F3

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

Compare Samsung NX20 vs Sony NEX-F3

Compare Other Cameras?