Fujifilm S4000 vs Fujifilm X-Pro2

Fujifilm X-Pro2 advantages over Fujifilm S4000

• Focus peaking
  Peaker vs Non-peaker
  Your camera will highlight what's in focus
• Larger sensor
  APS-C vs 1/2.3 inch
  More sensor area. Bigger is (generally) better.
• Bigger pixels
  ~ 3.93 vs 1.44 microns
  Better low-light and dynamic range (all else equal)
• Shoot 4K video
  4K (UHD) vs 720p
  Make sure you have a fast computer
• 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
• On-sensor phase detect
  Yes vs No
  Usually improves live view and video AF performance
• Manual focus
  Yes vs No
  AF is for the weak. Real photographers focus manually.
• Thinner
  45 mm vs 99 mm
  Thinner
• External Mic Jack
  Jack vs No jack
  Improved sound fidelity when shooting video
• Newer
  9 years vs 14 years old
  Newer cameras often support more advanced features
• Shoots 24p video
  Yes vs No
  Gives your movies a big-screen feel
• More dots on screen
  1620k vs 460k 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
  24.3 vs 14.0 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
• Longer exposure
  30 vs 8 sec
  Long exposures for night shots
• Bulb shutter
  Bulb vs No bulb
  Hold the shutter open manually for long exposures
• Faster JPEG shooting
  8.2 fps vs 1.2 fps
  Faster JPEG shooting (burst mode)
• Faster shutter
  1/32000 vs 1/2000 sec
  Shoot wide open in bright light
• Higher extended ISO
  51200 vs 6400 ISO
  Higher extended ISO can give more low-light flexibility