Pentax K-S1 vs Fujifilm GFX 50S

Fujifilm GFX 50S advantages over Pentax K-S1

• Larger sensor
  Medium format vs APS-C
  More sensor area. Bigger is (generally) better.
• Bigger pixels
  ~ 5.31 vs 4.29 microns
  Better low-light and dynamic range (all else equal)
• Touchscreen
  Touch vs No touch
  Interact with your camera just like your smartphone
• Tiltable Screen
  Tiltable vs Fixed
  Tilt the screen for shooting flexbility
• Built-in Wi-Fi
  Wi-Fi vs None
  Share your photos wirelessly
• Top deck display
  Yes vs No
  Check settings with a screen on top of the camera
• External Mic Jack
  Jack vs No jack
  Improved sound fidelity when shooting video
• More dots on screen
  2360k vs 922k dots
  Can mean greater resolution or a brighter screen
• More viewfinder magnification
  0.85x vs 0.63x
  Get a bigger view of the scene through the eye-level viewfinder
• More pixels
  51.4 vs 20.1 megapixels
  Higher resolution photos
• 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
  3600 vs 30 sec
  Long exposures for night shots
• Bigger JPEG buffer
  40 vs 20 shots
  Take more JPEG shots before waiting (burst mode)
• Faster shutter
  1/16000 vs 1/6000 sec
  Shoot wide open in bright light
• Higher extended ISO
  102400 vs 51200 ISO
  Higher extended ISO can give more low-light flexibility