• 1 inch 116.2mm2
  • 18.4 megapixels
  • ISO 160 - 12,800
  • APS-C 366.6mm2
  • 24.2 megapixels
  • ISO 100 - 32,000

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Differences

Nikon J4 advantages over Sony A6400

  • Slower slow-motion
    1200 fps vs 120 fps
    Supports slower slow-mo
  • Thinner
    28 mm vs 59 mm
    Thinner
  • Lighter weight
    317g vs 519g
    Lighter weight
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Faster JPEG shooting
    60.0 fps vs 11.0 fps
    Faster JPEG shooting (burst mode)
  • Faster shutter
    1/16000 vs 1/4000 sec
    Shoot wide open in bright light

Sony A6400 advantages over Nikon J4

  • Lens selection
    Good vs Limited
    Better lens selection gives you more options
  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    APS-C vs 1 inch
    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
    ~ 3.92 vs 2.52 microns
    Better low-light and dynamic range (all else equal)
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Longer stills battery life
    More info 410 vs 300 shots
    Capture more photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Higher max flash sync
    1/160 vs 1/60 sec
    Reduce the effect of ambient light in flash shots
  • Newer
    6 years vs 10 years old
    Newer cameras often support more advanced features
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • More pixels
    24.2 vs 18.4 megapixels
    Higher resolution photos
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Wider angle kit lens
    24 mm vs 27 mm
    Capture more of the scene with the included lens
  • Higher extended ISO
    102400 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Both provide
    Stitches multiple shots into a panoramic photo
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • On-sensor phase detect
    Both provide
    Usually improves live view and video AF performance
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures
  • Slow-motion videos
    Both provide
    Shoot slow-motion videos

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • In-Camera Image Stabilization
    Neither provide
    Reduces the effects of camera shake at slower shutter speeds
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

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Buy the Sony A6400

Review Excerpt

The Competition

Compared to Nikon J3

Nikon J4
Nikon J3
  • $350
  • 1 inch
  • Touchscreen
  • In-camera panoramas
  • $617
  • 1 inch
  • Has anti-aliasing filter
Sony A6400
Nikon J3
  • $823
  • APS-C
  • Lens selection
  • Focus peaking
  • $617
  • 1 inch
  • Slower slow-motion
  • Thinner

Compared to Samsung NX Mini

Nikon J4
Samsung NX Mini
  • $350
  • 1 inch
  • On-sensor phase detect
  • Higher-res screen
  • $600
  • 1 inch
  • Less expensive
  • Tiltable Screen
Sony A6400
Samsung NX Mini
  • $823
  • APS-C
  • Focus peaking
  • Larger sensor
  • $600
  • 1 inch
  • Longer stills battery life
  • Thinner

Compared to Nikon J5

Nikon J4
Nikon J5
  • $350
  • 1 inch
  • Longer stills battery life
  • $497
  • 1 inch
  • Shoot 4K video
  • Tiltable Screen
Sony A6400
Nikon J5
  • $823
  • APS-C
  • Lens selection
  • Focus peaking
  • $497
  • 1 inch
  • Less expensive
  • Slower slow-motion

Compared to Fujifilm X-T100

Nikon J4
Fujifilm X-T100
  • $350
  • 1 inch
  • Slower slow-motion
  • More telephoto lens reach
  • $599
  • APS-C
  • Tilt-swivel screen
  • Lens selection
Sony A6400
Fujifilm X-T100
  • $823
  • APS-C
  • Slower slow-motion
  • Fast startup
  • $599
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compared to Sony A6100

Nikon J4
Sony A6100
  • $350
  • 1 inch
  • Slower slow-motion
  • Thinner
  • $698
  • APS-C
  • Lens selection
  • Focus peaking
Sony A6400
Sony A6100
  • $823
  • APS-C
  • Higher extended ISO
  • $698
  • APS-C
  • Less expensive
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