• APS-C 369.7mm2
  • 20.3 megapixels
  • ISO 100 - 12,800
  • 1 inch 116.2mm2
  • 20.1 megapixels
  • 24.00mm - 70.00mm (35mm eq.)

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Differences

Samsung NX20 advantages over Sony RX100 IV

  • Larger sensor
    APS-C vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.33 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • Higher effective ISO
    785 vs 562 iso
    Take photos in low light with less noise
  • Longer stills battery life
    More info 360 vs 280 shots
    Capture more photos
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • More viewfinder magnification
    0.69x vs 0.59x
    Get a bigger view of the scene through the eye-level viewfinder

Sony RX100 IV advantages over Samsung NX20

  • 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
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Fast startup
    ~2.10 vs 3.0 sec
    Faster startup lets you catch the moment
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Higher max flash sync
    1/2000 vs 1/180 sec
    Reduce the effect of ambient light in flash shots
  • More dots on screen
    1229k vs 614k dots
    Can mean greater resolution or a brighter screen
  • Less shutter lag
    0.16 vs 0.35 sec
    Focus and take a photo quickly (wide angle)
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Faster JPEG shooting
    16.0 fps vs 7.5 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    40 vs 11 shots
    Take more JPEG shots before waiting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/32000 vs 1/8000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    25600 vs 12800 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
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • 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

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Buy the Samsung NX20

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Buy the Sony RX100 IV

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.

  • Vastly improved burst speeds with deep buffer; Great performance with very fast autofocus; Very high resolution gives lots of detail in good light; High ISO noise levels much better than most pocket camera rivals; High-quality 4K video with uncompressed HDMI out; Super-fast High Frame Rate video; Same great pocket-friendly design.

  • Pricey for a compact camera; JPEGs can look over-processed at higher ISOs; Lens doesn't offer as much telephoto reach; Battery life not as good as predecessor; 24-70mm-equivalent lens can feel limiting.

The Competition

Compared to Pentax K-01

Samsung NX20
Pentax K-01
  • $400
  • APS-C
  • Eye-level viewfinder
  • Tiltable Screen
  • $359
  • APS-C
  • Lens selection
  • Focus peaking
Sony RX100 IV
Pentax K-01
  • $898
  • 1 inch
  • Eye-level viewfinder
  • Shoot 4K video
  • $359
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to 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
Sony RX100 IV
Sony NEX-F3
  • $898
  • 1 inch
  • Focus peaking
  • Eye-level viewfinder
  • $600
  • APS-C
  • Less expensive
  • Larger sensor

Compared to Fujifilm X-E1

Samsung NX20
Fujifilm X-E1
  • $400
  • APS-C
  • Less expensive
  • Tiltable Screen
  • $899
  • APS-C
  • Lens selection
  • Focus peaking
Sony RX100 IV
Fujifilm X-E1
  • $898
  • 1 inch
  • Less expensive
  • In-Camera Image Stabilization
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Sony RX100 III

Samsung NX20
Sony RX100 III
  • $400
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $748
  • 1 inch
  • Focus peaking
  • In-Camera Image Stabilization
Sony RX100 IV
Sony RX100 III
  • $898
  • 1 inch
  • Slower slow-motion
  • Shoot 4K video
  • $748
  • 1 inch

Compared to Sony RX100 V

Samsung NX20
Sony RX100 V
  • $400
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $998
  • 1 inch
  • Focus peaking
  • In-Camera Image Stabilization
Sony RX100 IV
Sony RX100 V
  • $898
  • 1 inch
  • Longer stills battery life
  • $998
  • 1 inch
  • On-sensor phase detect
  • Faster JPEG shooting
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