• 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 200 - 25,600
  • 35mm 847.3mm2
  • 12.1 megapixels
  • ISO 80 - 102,400

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Differences

Panasonic GH4 advantages over Sony A7S III

  • Less expensive
    $998 vs $3198
    Save money for lenses or accessories
  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • More pixels
    16.1 vs 12.1 megapixels
    Higher resolution photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots

Sony A7S III advantages over Panasonic GH4

  • Larger sensor
    35mm vs 4/3
    More sensor area. Bigger is (generally) better.
  • Slower slow-motion
    240 fps vs 96 fps
    Supports slower slow-mo
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Bigger pixels
    ~ 8.40 vs 3.75 microns
    Better low-light and dynamic range (all else equal)
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Newer
    4 years vs 11 years old
    Newer cameras often support more advanced features
  • More dots on screen
    1440k vs 1037k dots
    Can mean greater resolution or a brighter screen
  • More viewfinder magnification
    0.90x vs 0.67x
    Get a bigger view of the scene through the eye-level viewfinder
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Higher extended ISO
    409600 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
  • Tilt-swivel screen
    Both provide
    Tilt and swivel the screen for maximum shooting flexibility
  • 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
  • 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
  • Headphone jack
    Both provide
    Monitor audio recording while you shoot video
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures
  • Slow-motion videos
    Both provide
    Shoot slow-motion videos

Common Weaknesses

  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera

User reviews

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Review Excerpt

  • Excellent still image quality for its class; Fantastic, highly-detailed video quality; Superior video recording chops with 4K video (both Cinema 4K and Ultra HD); Responsive all-around performer with great AF performance and burst shooting; Rolling shutter is minimal with 60p and 30p video; Splash- and dust-proof magnesium alloy body; Built-in Wi-Fi with NFC.

  • High ISO performance not as good as some APS-C models (IQ drops quickly past ISO 3200); Overall still image quality not significantly better than the GH3; Sluggish buffer clearing with RAW files; Rolling shutter noticeable on 4K video; Not as compact as most mirrorless cameras.

  • Read our Panasonic GH4 Review

The Competition

Compared to Panasonic GH3

Panasonic GH4
Panasonic GH3
  • $998
  • 4/3
  • Focus peaking
  • Shoot 4K video
  • $798
  • 4/3

Compare Panasonic GH4 vs Panasonic GH3

Sony A7S III
Panasonic GH3
  • $3348
  • 35mm
  • Focus peaking
  • Larger sensor
  • $798
  • 4/3
  • Lens selection
  • Internal flash

Compare Sony A7S III vs Panasonic GH3

Compared to Olympus E-M1

Panasonic GH4
Olympus E-M1
  • $998
  • 4/3
  • Tilt-swivel screen
  • Shoot 4K video
  • $1099
  • 4/3
  • In-Camera Image Stabilization
  • On-sensor phase detect

Compare Panasonic GH4 vs Olympus E-M1

Sony A7S III
Olympus E-M1
  • $3348
  • 35mm
  • Tilt-swivel screen
  • Larger sensor
  • $1099
  • 4/3
  • Lens selection
  • Less expensive

Compare Sony A7S III vs Olympus E-M1

Compared to Panasonic G7

Panasonic GH4
Panasonic G7
  • $998
  • 4/3
  • Fast startup
  • NFC
  • $498
  • 4/3
  • Less expensive
  • In-camera panoramas

Compare Panasonic GH4 vs Panasonic G7

Sony A7S III
Panasonic G7
  • $3348
  • 35mm
  • Larger sensor
  • In-Camera Image Stabilization
  • $498
  • 4/3
  • Less expensive
  • Lens selection

Compare Sony A7S III vs Panasonic G7

Compared to Sony A9 II

Panasonic GH4
Sony A9 II
  • $998
  • 4/3
  • Less expensive
  • Tilt-swivel screen
  • $4498
  • 35mm
  • Larger sensor
  • Slower slow-motion

Compare Panasonic GH4 vs Sony A9 II

Sony A7S III
Sony A9 II
  • $3348
  • 35mm
  • Less expensive
  • Tilt-swivel screen
  • $4498
  • 35mm
  • On-sensor phase detect
  • More pixels

Compare Sony A7S III vs Sony A9 II

Compared to Canon R6

Panasonic GH4
Canon R6
  • $998
  • 4/3
  • Less expensive
  • NFC
  • $2149
  • 35mm
  • Larger sensor
  • Slower slow-motion

Compare Panasonic GH4 vs Canon R6

Sony A7S III
Canon R6
  • $3348
  • 35mm
  • Slower slow-motion
  • Bigger pixels
  • $2149
  • 35mm
  • Less expensive
  • On-sensor phase detect

Compare Sony A7S III vs Canon R6

Compare Other Cameras?