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

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Differences

YI M1 advantages over Sony A6400

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Slower slow-motion
    240 fps vs 120 fps
    Supports slower slow-mo
  • Thinner
    33 mm vs 59 mm
    Thinner
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots

Sony A6400 advantages over YI M1

  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Bigger pixels
    ~ 3.92 vs 3.34 microns
    Better low-light and dynamic range (all else equal)
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • 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
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • More pixels
    24.2 vs 20.2 megapixels
    Higher resolution photos
  • Faster JPEG shooting
    11.0 fps vs 5.0 fps
    Faster JPEG shooting (burst mode)
  • 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
  • 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
  • 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

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • In-Camera Image Stabilization
    Neither provide
    Reduces the effects of camera shake at slower shutter speeds
  • 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

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Your purchases support this site

Buy the YI M1
Kit with 12-40mm lens (Black)
  • Kit with 12-40mm lens (Black)
  • Kit with 12-40mm & 42.5mm lenses (Silver)

Your purchases support this site

Buy the Sony A6400
Body Only (Black)
  • Body Only (Black)
  • Kit with 16-50mm OSS lens
  • Kit with 18-135mm OSS lens
All A6400 Deals

Review Excerpt

  • 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.

  • Read our YI M1 Express Review

The Competition

Compared to Olympus E-PL6

YI M1
Olympus E-PL6
  • $199
  • 4/3
  • Focus peaking
  • Shoot 4K video
  • $299
  • 4/3
  • Less expensive
  • In-Camera Image Stabilization

Compare YI M1 vs Olympus E-PL6

Sony A6400
Olympus E-PL6
  • $798
  • APS-C
  • Focus peaking
  • Larger sensor
  • $299
  • 4/3
  • Lens selection
  • In-Camera Image Stabilization

Compare Sony A6400 vs Olympus E-PL6

Compared to Panasonic GF7

YI M1
Panasonic GF7
  • $199
  • 4/3
  • Less expensive
  • Shoot 4K video
  • $590
  • 4/3
  • Tiltable Screen
  • Internal flash

Compare YI M1 vs Panasonic GF7

Sony A6400
Panasonic GF7
  • $798
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
  • $590
  • 4/3
  • Lens selection
  • Fast startup

Compare Sony A6400 vs Panasonic GF7

Compared to Panasonic GX850

YI M1
Panasonic GX850
  • $199
  • 4/3
  • Less expensive
  • Built-in Bluetooth
  • $548
  • 4/3
  • Tiltable Screen
  • Internal flash

Compare YI M1 vs Panasonic GX850

Sony A6400
Panasonic GX850
  • $798
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
  • $548
  • 4/3
  • Lens selection
  • Thinner

Compare Sony A6400 vs Panasonic GX850

Compared to Fujifilm X-T100

YI M1
Fujifilm X-T100
  • $199
  • 4/3
  • Lens selection
  • Slower slow-motion
  • $599
  • APS-C
  • Larger sensor
  • Tilt-swivel screen

Compare YI M1 vs Fujifilm X-T100

Sony A6400
Fujifilm X-T100
  • $798
  • APS-C
  • Slower slow-motion
  • Fast startup
  • $599
  • APS-C
  • Less expensive
  • Tilt-swivel screen

Compare Sony A6400 vs Fujifilm X-T100

Compared to Sony A6100

YI M1
Sony A6100
  • $199
  • 4/3
  • Lens selection
  • Slower slow-motion
  • $648
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compare YI M1 vs Sony A6100

Sony A6400
Sony A6100
  • $798
  • APS-C
  • Higher extended ISO
  • $648
  • APS-C
  • Less expensive

Compare Sony A6400 vs Sony A6100

Compare Other Cameras?