• 4/3 224.9mm2
  • 16.0 megapixels
  • ISO 200 - 25,600
  • 35mm 861.6mm2
  • 42.4 megapixels
  • ISO 100 - 32,000

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Differences

Panasonic GM5 advantages over Sony A7R III

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Fast startup
    ~1.00 vs 1.7 sec
    Faster startup lets you catch the moment
  • Thinner
    36 mm vs 73 mm
    Thinner
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light

Sony A7R III advantages over Panasonic GM5

  • Larger sensor
    35mm vs 4/3
    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 3.77 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
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Better color depth
    26.0 vs 22.1 bits
    Capture richer, more accurate colors
  • Higher effective ISO
    3,523 vs 721 iso
    Take photos in low light with less noise
  • More dynamic range
    14.7 vs 11.7 evs
    Retain detail in highlight and shadows
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Longer stills battery life
    More info 650 vs 220 shots
    Capture more photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Higher max flash sync
    1/250 vs 1/50 sec
    Reduce the effect of ambient light in flash shots
  • Newer
    7 years vs 10 years old
    Newer cameras often support more advanced features
  • More viewfinder magnification
    0.78x vs 0.46x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    42.4 vs 16.0 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
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Faster JPEG shooting
    9.9 fps vs 5.7 fps
    Faster JPEG shooting (burst mode)
  • Faster RAW shooting
    9.2 fps vs 4.9 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    30 vs 7 shots
    Larger buffer for RAW shots (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
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • 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

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Internal flash
    Neither provide
    Useful in a pinch for fill flash
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera

User reviews

Buy From

Your purchases support this site

Buy the Panasonic GM5

Your purchases support this site

Buy the Sony A7R III

Review Excerpt

  • Great image quality for a tiny camera; Excellent high ISO for its class; Built-in EVF; Built-in hot-shoe; Improved ergonomics; Improved image quality for long exposures; Improved burst rate with hybrid shutter; 1080/60p video.

  • Slightly bigger than GM1 (but not by much); No built-in flash; Shallow buffers with RAW files; Dynamic range not quite as good as some competing models; Below average battery life.

  • Fantastic image quality; Improved dynamic range over its predecessor; Very good high ISO performance; Much improved real-world AF performance; Class-leading burst rates, even with RAW; Improved 5-axis in-body image stabilization; Better 4K video quality; 1080/120fps video; Dual card slots; Significantly better battery life.

  • Expensive; Menus still confusing; UHS-II support only on one card slot; No optical low-pass filter means greater risk of moire; No built-in flash; Buffer clearing still slow despite UHS-II support.

The Competition

Compared to Panasonic GM1

Panasonic GM5
Panasonic GM1
  • $898
  • 4/3
  • Eye-level viewfinder
  • In-camera panoramas
  • $479
  • 4/3
  • Less expensive
  • Internal flash
Sony A7R III
Panasonic GM1
  • $2204
  • 35mm
  • Larger sensor
  • Eye-level viewfinder
  • $479
  • 4/3
  • Lens selection
  • Fast startup

Compared to Panasonic GF7

Panasonic GM5
Panasonic GF7
  • $898
  • 4/3
  • Eye-level viewfinder
  • Hot shoe
  • $590
  • 4/3
  • Less expensive
  • Tiltable Screen
Sony A7R III
Panasonic GF7
  • $2204
  • 35mm
  • Larger sensor
  • Eye-level viewfinder
  • $590
  • 4/3
  • Lens selection
  • In-camera panoramas

Compared to Sony A7R II

Panasonic GM5
Sony A7R II
  • $898
  • 4/3
  • Lens selection
  • Touchscreen
  • $2348
  • 35mm
  • Larger sensor
  • In-Camera Image Stabilization
Sony A7R III
Sony A7R II
  • $2204
  • 35mm
  • Touchscreen
  • High resolution composite
  • $2348
  • 35mm
  • In-camera panoramas

Compared to Panasonic GX850

Panasonic GM5
Panasonic GX850
  • $898
  • 4/3
  • Eye-level viewfinder
  • Fast startup
  • $548
  • 4/3
  • Less expensive
  • Shoot 4K video
Sony A7R III
Panasonic GX850
  • $2204
  • 35mm
  • Larger sensor
  • Eye-level viewfinder
  • $548
  • 4/3
  • Lens selection
  • In-camera panoramas

Compared to Nikon Z7 II

Panasonic GM5
Nikon Z7 II
  • $898
  • 4/3
  • In-camera panoramas
  • Thinner
  • $2497
  • 35mm
  • Larger sensor
  • In-Camera Image Stabilization
Sony A7R III
Nikon Z7 II
  • $2204
  • 35mm
  • Less expensive
  • High resolution composite
  • $2497
  • 35mm
  • Top deck display
  • Newer
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