• 4/3 224.9mm2
  • 20.3 megapixels
  • ISO 200 - 25,600
  • APS-C 366.6mm2
  • 24.2 megapixels
  • ISO 100 - 32,000

Buy From

Differences

Panasonic GX8 advantages over Sony A6400

  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    Tilt and swivel the screen for maximum shooting flexibility
  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Fast startup
    ~1.20 vs 1.8 sec
    Faster startup lets you catch the moment
  • Higher max flash sync
    1/250 vs 1/160 sec
    Reduce the effect of ambient light in flash shots
  • More viewfinder magnification
    0.77x vs 0.70x
    Get a bigger view of the scene through the eye-level viewfinder
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Bigger JPEG buffer
    Unlimited vs 87 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster shutter
    1/16000 vs 1/4000 sec
    Shoot wide open in bright light

Sony A6400 advantages over Panasonic GX8

  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 3.92 vs 3.34 microns
    Better low-light and dynamic range (all else equal)
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Longer stills battery life
    More info 410 vs 340 shots
    Capture more photos
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Newer
    15 months vs 5 years old
    Newer cameras often support more advanced features
  • More pixels
    24.2 vs 20.3 megapixels
    Higher resolution photos
  • Faster JPEG shooting
    11.0 fps vs 8.3 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    11.1 fps vs 7.9 fps
    Faster RAW shooting in burst mode
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    102400 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Shoot 4K video
    Both provide
    Make sure you have a fast computer
  • 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
  • NFC
    Both provide
    Simplifies pairing your camera with supported phones
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • 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

Buy From

Your purchases support this site

Buy the Panasonic GX8

Your purchases support this site

Buy the Sony A6400

Review Excerpt

  • Highest resolution Micro Four Thirds camera yet; Great high ISO performance; Very fast autofocus; Fast burst mode with deep buffers; Impressive Dual I.S. system; Great 4K video.

  • No built-in flash; Slow buffer clearing; Below average battery life; Limited I.S. for 4K video.

The Competition

Compared to Olympus E-M1

Panasonic GX8
Olympus E-M1
  • $998
  • 4/3
  • Less expensive
  • Tilt-swivel screen
  • $1099
  • 4/3
  • Fast startup
  • On-sensor phase detect
Sony A6400
Olympus E-M1
  • $898
  • APS-C
  • Less expensive
  • Larger sensor
  • $1099
  • 4/3
  • Lens selection
  • In-Camera Image Stabilization

Compared to Olympus E-M5 II

Panasonic GX8
Olympus E-M5 II
  • $998
  • 4/3
  • Shoot 4K video
  • In-camera panoramas
  • $799
  • 4/3
  • Less expensive
  • High resolution composite
Sony A6400
Olympus E-M5 II
  • $898
  • APS-C
  • Larger sensor
  • Shoot 4K video
  • $799
  • 4/3
  • Lens selection
  • Less expensive

Compared to Olympus E-M1 II

Panasonic GX8
Olympus E-M1 II
  • $998
  • 4/3
  • Less expensive
  • In-camera panoramas
  • $1199
  • 4/3
  • High resolution composite
  • Fast startup
Sony A6400
Olympus E-M1 II
  • $898
  • APS-C
  • Larger sensor
  • Less expensive
  • $1199
  • 4/3
  • Lens selection
  • Tilt-swivel screen

Compared to Fujifilm X-T100

Panasonic GX8
Fujifilm X-T100
  • $998
  • 4/3
  • Lens selection
  • In-Camera Image Stabilization
  • $499
  • APS-C
  • Less expensive
  • Larger sensor
Sony A6400
Fujifilm X-T100
  • $898
  • APS-C
  • Slower slow-motion
  • Fast startup
  • $499
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compared to Sony A6100

Panasonic GX8
Sony A6100
  • $998
  • 4/3
  • Tilt-swivel screen
  • Lens selection
  • $598
  • APS-C
  • Larger sensor
  • Less expensive
Sony A6400
Sony A6100
  • $898
  • APS-C
  • Higher extended ISO
  • $598
  • APS-C
  • Less expensive
Compare Other Cameras?