Sony A7R III vs Olympus E-PL9

Sony A7R III advantages over Olympus E-PL9

• Larger sensor
  35mm vs 4/3
  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
  ~ 4.51 vs 3.75 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
• NFC
  Yes vs No
  Simplifies pairing your camera with supported phones
• Longer video battery life
  100 vs 80 minutes
  Capture more video
• On-sensor phase detect
  Yes vs No
  Usually improves live view and video AF performance
• Longer stills battery life
  More info

  Longer stills battery life

  Cameras with longer battery life can take more photos before exhausting their batteries.

  Special note: The measurement standard for battery life stipulates that if a camera has an internal flash, it must be used for 50% of photos taken. For this reason, comparisons of one camera with an internal flash to another without will not be comparable

  650 vs 350 shots
  Capture more photos
• External Mic Jack
  Jack vs No jack
  Improved sound fidelity when shooting video
• More dots on screen
  1440k vs 1037k dots
  Can mean greater resolution or a brighter screen
• More pixels
  42.4 vs 16.1 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
• Lacks anti-aliasing filter
  No Filter vs Filter
  Enjoy sharper photos
• Faster JPEG shooting
  9.9 fps vs 8.6 fps
  Faster JPEG shooting (burst mode)
• Bigger RAW buffer
  30 vs 14 shots
  Larger buffer for RAW shots (burst mode)
• Higher extended ISO
  102400 vs 25600 ISO
  Higher extended ISO can give more low-light flexibility