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

Buy From

Differences

Sony A99 II advantages over YI M1

  • Larger sensor
    35mm vs 4/3
    More sensor area. Bigger is (generally) better.
  • Tilt-swivel screen
    Tilt-swivel vs none
    Tilt and swivel the screen for maximum shooting flexibility
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • 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
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Longer stills battery life
    More info 490 vs 380 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
  • Higher max flash sync
    1/250 vs 1/125 sec
    Reduce the effect of ambient light in flash shots
  • More pixels
    42.4 vs 20.2 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 5.0 fps
    Faster JPEG shooting (burst mode)
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    102400 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

YI M1 advantages over Sony A99 II

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Less expensive
    $300 vs $3198*
    Save money for lenses or accessories
  • Slower slow-motion
    240 fps vs 120 fps
    Supports slower slow-mo
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Thinner
    33 mm vs 76 mm
    Thinner
  • Lighter weight
    280g vs 849g
    Lighter weight
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • 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
  • Slow-motion videos
    Both provide
    Shoot slow-motion videos

Common Weaknesses

  • Built-in GPS
    Neither provide
    Geotag your photos
  • Internal flash
    Neither provide
    Useful in a pinch for fill flash

User reviews

Buy From

Your purchases support this site

Buy the YI M1

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.

  • Cheap as chips (and with a kit lens!); Quality Sony Exmor Four Thirds sensor; Widely-supported Micro Four Thirds lens mount; Good image quality from raw files; Reasonable burst performance for price; 4K video capture.

  • Poor ergonomics; Controls too easily bumped; Frustrating user interface; Mediocre JPEG image quality; Heavy-handed noise reduction; Unreliable white balance; No raw+JPEG; Buffer is almost nonexistent; Focus confirmation beep happens while still focusing; AF is poor in low light; Laggy user interface in playback; Extreme crop for 4K video; Kit lenses feel cheap; No bundled flash.

The Competition

Compared to Panasonic GF7

Sony A99 II
Panasonic GF7
  • $3198
  • 35mm
  • Larger sensor
  • Tilt-swivel screen
  • $590
  • 4/3
  • Lens selection
  • Touchscreen
YI M1
Panasonic GF7
  • $300
  • 4/3
  • Shoot 4K video
  • Built-in Bluetooth
  • $590
  • 4/3
  • Tiltable Screen
  • Internal flash

Compared to Canon 5DS

Sony A99 II
Canon 5DS
  • $3198
  • 35mm
  • Focus peaking
  • Tilt-swivel screen
  • $3499
  • 35mm
  • Lens selection
  • Fast startup
YI M1
Canon 5DS
  • $300
  • 4/3
  • Less expensive
  • Focus peaking
  • $3499
  • 35mm
  • Larger sensor
  • Eye-level viewfinder

Compared to Canon 5DS R

Sony A99 II
Canon 5DS R
  • $3198
  • 35mm
  • Focus peaking
  • Less expensive
  • $3699
  • 35mm
  • Lens selection
  • Fast startup
YI M1
Canon 5DS R
  • $300
  • 4/3
  • Less expensive
  • Focus peaking
  • $3699
  • 35mm
  • Larger sensor
  • Eye-level viewfinder

Compared to Panasonic GX850

Sony A99 II
Panasonic GX850
  • $3198
  • 35mm
  • Tilt-swivel screen
  • Larger sensor
  • $548
  • 4/3
  • Lens selection
  • Less expensive
YI M1
Panasonic GX850
  • $300
  • 4/3
  • Less expensive
  • Built-in Bluetooth
  • $548
  • 4/3
  • Tiltable Screen
  • Internal flash

Compared to Nikon D850

Sony A99 II
Nikon D850
  • $3198
  • 35mm
  • Less expensive
  • Tilt-swivel screen
  • $3297
  • 35mm
  • Lens selection
  • Touchscreen
YI M1
Nikon D850
  • $300
  • 4/3
  • Less expensive
  • Slower slow-motion
  • $3297
  • 35mm
  • Larger sensor
  • Eye-level viewfinder
Compare Other Cameras?