• 35mm 861.6mm2
  • 42.4 megapixels
  • ISO 100 - 25,600
  • 4/3 224.9mm2
  • 20.3 megapixels
  • ISO 200 - 25,600

Buy From

Differences

Sony A99 II advantages over Panasonic GX9

  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    Tilt and swivel the screen for maximum shooting flexibility
  • Larger sensor
    35mm vs 4/3
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.51 vs 3.34 microns
    Better low-light and dynamic range (all else equal)
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Longer video battery life
    135 vs 70 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 490 vs 260 shots
    Capture more photos
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • More viewfinder magnification
    0.78x vs 0.70x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    42.4 vs 20.3 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
    10.5 fps vs 9.2 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    11.1 fps vs 9.1 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

Panasonic GX9 advantages over Sony A99 II

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Less expensive
    $798 vs $3198*
    Save money for lenses or accessories
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    46 mm vs 76 mm
    Thinner
  • Higher-res screen
    413k vs 307k pixels
    More detail on the screen lets you judge focus and composition
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Bigger JPEG buffer
    140 vs 61 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light

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
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    Both provide
    Make sure you have a fast computer
  • In-camera panoramas
    Both provide
    Stitches multiple shots into a panoramic photo
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • Built-in Bluetooth
    Both provide
    Always-on wireless connectivity
  • 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

User reviews

Buy From

Your purchases support this site

Buy the Sony A99 II
Body Only
All A99 II Deals

Your purchases support this site

Buy the Panasonic GX9
Kit with 12-60mm lens (Black)
  • Kit with 12-60mm lens (Black)
  • Kit with 12-60mm lens (Silver)
All GX9 Deals

Review Excerpt

  • Superb image quality at low, moderate ISOs; Improved high ISO performance; Fast continuous shooting speeds; Very impressive hybrid autofocus; High-quality 4K UHD video; Rugged camera body.

  • Multi-selector joystick can be awkward to use; No EVF live view at fastest burst rate; Buffer clearing is slow with no UHS-II support; 4K UHD video isn't as full-featured as E-mount counterparts.

  • Read our Sony A99 II Review

  • Great image quality; Good high ISO performance for its class; Improved JPEG processing; Fast autofocus; Fast ~9fps burst mode.

  • Smallish field-sequential EVF; Below average battery life; No mic/headphone jacks; Noticeable crop on 4K video.

  • Read our Panasonic GX9 Review

The Competition

Compared to Canon 5DS R

Sony A99 II
Canon 5DS R
  • $3198
  • 35mm
  • Tilt-swivel screen
  • Focus peaking
  • $1849
  • 35mm
  • Lens selection
  • Less expensive

Compare Sony A99 II vs Canon 5DS R

Panasonic GX9
Canon 5DS R
  • $898
  • 4/3
  • Focus peaking
  • Less expensive
  • $1849
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Panasonic GX9 vs Canon 5DS R

Compared to Panasonic GX85

Sony A99 II
Panasonic GX85
  • $3198
  • 35mm
  • Tilt-swivel screen
  • Larger sensor
  • $598
  • 4/3
  • Lens selection
  • Less expensive

Compare Sony A99 II vs Panasonic GX85

Panasonic GX9
Panasonic GX85
  • $898
  • 4/3
  • Built-in Bluetooth
  • More telephoto lens reach
  • $598
  • 4/3
  • Less expensive
  • Lighter weight

Compare Panasonic GX9 vs Panasonic GX85

Compared to Canon 5D Mark IV

Sony A99 II
Canon 5D Mark IV
  • $3198
  • 35mm
  • Focus peaking
  • Tilt-swivel screen
  • $2249
  • 35mm
  • Lens selection
  • Bigger pixels

Compare Sony A99 II vs Canon 5D Mark IV

Panasonic GX9
Canon 5D Mark IV
  • $898
  • 4/3
  • Focus peaking
  • Less expensive
  • $2249
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Panasonic GX9 vs Canon 5D Mark IV

Compared to Olympus E-M10 III

Sony A99 II
Olympus E-M10 III
  • $3198
  • 35mm
  • Tilt-swivel screen
  • Larger sensor
  • $549
  • 4/3
  • Lens selection
  • Less expensive

Compare Sony A99 II vs Olympus E-M10 III

Panasonic GX9
Olympus E-M10 III
  • $898
  • 4/3
  • In-camera panoramas
  • Built-in Bluetooth
  • $549
  • 4/3
  • Longer stills battery life
  • Lighter weight

Compare Panasonic GX9 vs Olympus E-M10 III

Compared to Nikon D850

Sony A99 II
Nikon D850
  • $3198
  • 35mm
  • Tilt-swivel screen
  • In-Camera Image Stabilization
  • $2464
  • 35mm
  • Lens selection
  • Less expensive

Compare Sony A99 II vs Nikon D850

Panasonic GX9
Nikon D850
  • $898
  • 4/3
  • Less expensive
  • In-Camera Image Stabilization
  • $2464
  • 35mm
  • Larger sensor
  • Bigger pixels

Compare Panasonic GX9 vs Nikon D850

Compare Other Cameras?