• 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 200 - 25,600
  • 4/3 224.9mm2
  • 20.3 megapixels
  • ISO 200 - 25,600

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Differences

Olympus E-M1 advantages over Panasonic GX9

  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Longer stills battery life
    More info 350 vs 260 shots
    Capture more photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Higher max flash sync
    1/320 vs 1/200 sec
    Reduce the effect of ambient light in flash shots
  • Bigger RAW buffer
    50 vs 32 shots
    Larger buffer for RAW shots (burst mode)

Panasonic GX9 advantages over Olympus E-M1

  • Less expensive
    $898 vs $1299
    Save money for lenses or accessories
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    46 mm vs 63 mm
    Thinner
  • Newer
    8 months vs 5 years old
    Newer cameras often support more advanced features
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • More pixels
    20.3 vs 16.1 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Bigger JPEG buffer
    140 vs 50 shots
    Take more JPEG shots before waiting (burst mode)

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
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • 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
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • 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
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Your purchases support this site

Buy the Olympus E-M1

Your purchases support this site

Buy the Panasonic GX9

Review Excerpt

  • Exceptional rugged, weather-proof, professional build; Lightning fast contrast-detect AF, and phase-detect AF that makes Four Thirds lenses far more responsive; Tons of useful physical controls with immense customizability; Arguably the best image quality of any Micro Four Thirds camera we've tested to date; Large, sharp, high-resolution electronic viewfinder; Advanced Wi-Fi capabilities, including remote control shooting in PASM exposure modes.

  • Bigger and heavier than many other compact system cameras; Most expensive Micro Four Thirds camera on the market to date; Menu system and customization options have a steep learning curve; No optical low-pass filter means greater risk of moire; No built-in flash.

  • Great image quality; Good high ISO performance for its class; Improved JPEG processing; Fast autofocus; Fast ~9fps burst mode.

  • Smallish field-sequential EVF; Below average battery life; No mic/headphone jacks; Noticeable crop on 4K video.

The Competition

Compared to Olympus E-M5

Olympus E-M1
Olympus E-M5
  • $1099
  • 4/3
  • Focus peaking
  • Fast startup
  • $799
  • 4/3
  • Less expensive
  • Thinner
Panasonic GX9
Olympus E-M5
  • $898
  • 4/3
  • Focus peaking
  • Shoot 4K video
  • $799
  • 4/3
  • Longer stills battery life
  • Has anti-aliasing filter

Compared to Panasonic GH3

Olympus E-M1
Panasonic GH3
  • $1099
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $823
  • 4/3
  • Less expensive
  • Tilt-swivel screen
Panasonic GX9
Panasonic GH3
  • $898
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization
  • $823
  • 4/3
  • Tilt-swivel screen
  • Longer stills battery life

Compared to Panasonic GH4

Olympus E-M1
Panasonic GH4
  • $1099
  • 4/3
  • In-Camera Image Stabilization
  • On-sensor phase detect
  • $798
  • 4/3
  • Less expensive
  • Tilt-swivel screen
Panasonic GX9
Panasonic GH4
  • $898
  • 4/3
  • In-Camera Image Stabilization
  • In-camera panoramas
  • $798
  • 4/3
  • Tilt-swivel screen
  • NFC

Compared to Panasonic GX8

Olympus E-M1
Panasonic GX8
  • $1099
  • 4/3
  • Fast startup
  • On-sensor phase detect
  • $1098
  • 4/3
  • Less expensive
  • Tilt-swivel screen
Panasonic GX9
Panasonic GX8
  • $898
  • 4/3
  • Built-in Bluetooth
  • Internal flash
  • $1098
  • 4/3
  • Tilt-swivel screen
  • NFC

Compared to Panasonic GX85

Olympus E-M1
Panasonic GX85
  • $1099
  • 4/3
  • Higher effective ISO
  • On-sensor phase detect
  • $565
  • 4/3
  • Less expensive
  • Shoot 4K video
Panasonic GX9
Panasonic GX85
  • $898
  • 4/3
  • Built-in Bluetooth
  • More telephoto lens reach
  • $565
  • 4/3
  • Less expensive
  • Lighter weight
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