• APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 16,000
  • 4/3 224.9mm2
  • 20.2 megapixels
  • ISO 100 - 25,600

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Differences

Sony A58 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
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Bigger pixels
    ~ 4.31 vs 3.34 microns
    Better low-light and dynamic range (all else equal)
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Longer stills battery life
    More info 700 vs 380 shots
    Capture more photos
  • 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

YI M1 advantages over Sony A58

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • Less expensive
    $300 vs $598
    Save money for lenses or accessories
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Thinner
    33 mm vs 77 mm
    Thinner
  • Newer
    2 years vs 6 years old
    Newer cameras often support more advanced features
  • Higher-res screen
    346k vs 154k pixels
    More detail on the screen lets you judge focus and composition
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Wider angle kit lens
    24 mm vs 27 mm
    Capture more of the scene with the included lens
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    25600 vs 16000 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
  • In-camera panoramas
    Both provide
    Stitches multiple shots into a panoramic photo
  • 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
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • 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
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

Buy From

Your purchases support this site

Buy the YI M1

Review Excerpt

  • Improved 20.1-megapixel resolution; Impressive image quality, especially for its price; Fast and decisive autofocus (in most conditions); Very good battery life; Good video quality (Full HD 1080p, though it doesn't support 60p frame rate).

  • Plastic lens mount; Slower burst mode speeds and shallower buffer than A57; LCD no longer fully articulating; Mediocre kit lens; Electronic instead of an optical viewfinder may be a turnoff for some.

  • 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 Pentax K-5 IIs

Sony A58
Pentax K-5 IIs
  • $598
  • APS-C
  • Focus peaking
  • In-camera panoramas
  • $623
  • APS-C
  • Lens selection
  • Less expensive
YI M1
Pentax K-5 IIs
  • $300
  • 4/3
  • Less expensive
  • Focus peaking
  • $623
  • APS-C
  • Larger sensor
  • Eye-level viewfinder

Compared to Nikon D5200

Sony A58
Nikon D5200
  • $598
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $527
  • APS-C
  • Lens selection
  • Less expensive
YI M1
Nikon D5200
  • $300
  • 4/3
  • Less expensive
  • Focus peaking
  • $527
  • APS-C
  • Tilt-swivel screen
  • Larger sensor

Compared to Canon T5i

Sony A58
Canon T5i
  • $598
  • APS-C
  • Focus peaking
  • Larger sensor
  • $547
  • APS-C
  • Lens selection
  • Tilt-swivel screen
YI M1
Canon T5i
  • $300
  • 4/3
  • Less expensive
  • Focus peaking
  • $547
  • APS-C
  • Tilt-swivel screen
  • Larger sensor

Compared to Panasonic GF7

Sony A58
Panasonic GF7
  • $598
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
  • $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 Panasonic GX850

Sony A58
Panasonic GX850
  • $598
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
  • $548
  • 4/3
  • Lens selection
  • Shoot 4K video
YI M1
Panasonic GX850
  • $300
  • 4/3
  • Less expensive
  • Built-in Bluetooth
  • $548
  • 4/3
  • Tiltable Screen
  • Internal flash
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