Canon 80D vs Canon R3

Canon R3 advantages over Canon 80D

• Focus peaking
  Peaker vs Non-peaker
  Your camera will highlight what's in focus
• Larger sensor
  35mm vs APS-C
  More sensor area. Bigger is (generally) better.
• In-Camera Image Stabilization
  Yes vs No
  Reduces the effects of camera shake at slower shutter speeds
• Bigger pixels
  ~ 6.00 vs 3.75 microns
  Better low-light and dynamic range (all else equal)
• Shoot 4K video
  No vs 1080p
  Make sure you have a fast computer
• Built-in Bluetooth
  Yes vs No
  Always-on wireless connectivity
• Newer
  3 years vs 8 years old
  Newer cameras often support more advanced features
• More dots on screen
  4150k vs 1040k dots
  Can mean greater resolution or a brighter screen
• More viewfinder magnification
  0.76x vs 0.59x
  Get a bigger view of the scene through the eye-level viewfinder
• Dual card slots
  Yes vs No
  Gives you more storage flexibility
• Faster JPEG shooting
  30.0 fps vs 6.8 fps
  Faster JPEG shooting (burst mode)
• Bigger JPEG buffer
  150 vs 53 shots
  Take more JPEG shots before waiting (burst mode)
• Slow-motion videos
  Yes vs No
  Shoot slow-motion videos
• Higher extended ISO
  204800 vs 25600 ISO
  Higher extended ISO can give more low-light flexibility