Nikon D3400 vs Sony A7R III

Sony A7R III advantages over Nikon D3400

• 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
  ~ 4.51 vs 3.92 microns
  Better low-light and dynamic range (all else equal)
• Shoot 4K video
  4K (UHD) vs 1080p
  Make sure you have a fast computer
• Touchscreen
  Touch vs No touch
  Interact with your camera just like your smartphone
• Tiltable Screen
  Tiltable vs Fixed
  Tilt the screen for shooting flexbility
• High resolution composite
  Yes vs No
  Combine multiple shots to form a super hi-res version
• Built-in Wi-Fi
  Wi-Fi vs None
  Share your photos wirelessly
• NFC
  Yes vs No
  Simplifies pairing your camera with supported phones
• Higher effective ISO

  Higher effective ISO

  Maximum effective ISO is an estimate of the highest sensitivity at which a camera can capture excellent quality photos.

  Cameras with higher effective ISO will be better choices for indoor photography, night shooting, and indoor sports photography, especially if you intend to make large prints.

  You can learn more at our glossary entry.

  Maximum effective ISO test data courtesy of DxO Mark.

  A7R III test data on DxO Mark D3400 test data on DxO Mark
  3,523 vs 1,192 iso
  Take photos in low light with less noise
• Longer video battery life
  100 vs 60 minutes
  Capture more video
• On-sensor phase detect
  Yes vs No
  Usually improves live view and video AF performance
• External Mic Jack
  Jack vs No jack
  Improved sound fidelity when shooting video
• More viewfinder magnification
  0.78x vs 0.57x
  Get a bigger view of the scene through the eye-level viewfinder
• More pixels
  42.4 vs 24.2 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
• Faster JPEG shooting
  9.9 fps vs 5.1 fps
  Faster JPEG shooting (burst mode)
• Faster RAW shooting
  9.2 fps vs 5.1 fps
  Faster RAW shooting in burst mode
• Bigger RAW buffer
  30 vs 12 shots
  Larger buffer for RAW shots (burst mode)
• Slow-motion videos
  Yes vs No
  Shoot slow-motion videos
• Faster shutter
  1/8000 vs 1/4000 sec
  Shoot wide open in bright light
• Higher extended ISO
  102400 vs 25600 ISO
  Higher extended ISO can give more low-light flexibility