Pentax K-3 II advantages over Samsung i8

• Focus peaking
  Peaker vs Non-peaker
  Your camera will highlight what's in focus
• Larger sensor
  APS-C vs 1/2.5 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
  ~ 3.91 vs 1.76 microns
  Better low-light and dynamic range (all else equal)
• High resolution composite
  Yes vs No
  Combine multiple shots to form a super hi-res version
• RAW file ability
  Yes vs No
  Gives you more flexibility to develop your photos later
• Built-in GPS
  GPS vs None
  Geotag your photos
• Manual focus
  Yes vs No
  AF is for the weak. Real photographers focus manually.
• External Mic Jack
  Jack vs No jack
  Improved sound fidelity when shooting video
• Newer
  10 years vs 17 years old
  Newer cameras often support more advanced features
• 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
  1037k 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
  24.4 vs 8.2 megapixels
  Higher resolution photos
• Shoots 60p video
  Yes vs No
  A faster framerate can give you more editing options
• Dual card slots
  Yes vs No
  Gives you more storage flexibility
• Headphone jack
  Yes vs No
  Monitor audio recording while you shoot video
• Longer exposure
  30 vs 16 sec
  Long exposures for night shots
• Bulb shutter
  Bulb vs No bulb
  Hold the shutter open manually for long exposures
• Faster shutter
  1/8000 vs 1/2000 sec
  Shoot wide open in bright light
• Higher extended ISO
  51200 vs 1600 ISO
  Higher extended ISO can give more low-light flexibility