• 4/3 224.9mm2
  • 16.0 megapixels
  • ISO 200 - 25,600
  • 1 inch 116.2mm2
  • 20.1 megapixels
  • 25.00mm - 250.00mm (35mm eq.)

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Differences

Panasonic GM1 advantages over Panasonic ZS100

  • Larger sensor
    4/3 vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 3.77 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • Fast startup
    ~0.90 vs 2.3 sec
    Faster startup lets you catch the moment
  • Higher effective ISO
    660 vs 559 iso
    Take photos in low light with less noise
  • Thinner
    30 mm vs 44 mm
    Thinner

Panasonic ZS100 advantages over Panasonic GM1

  • 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
  • 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
  • Longer stills battery life
    More info 300 vs 230 shots
    Capture more photos
  • Higher max flash sync
    1/2000 vs 1/50 sec
    Reduce the effect of ambient light in flash shots
  • More pixels
    20.1 vs 16.0 megapixels
    Higher resolution photos
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Bigger JPEG buffer
    Unlimited vs 10 shots
    Take more JPEG shots before waiting (burst mode)
  • Bigger RAW buffer
    14 vs 7 shots
    Larger buffer for RAW shots (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • 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
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • Hot shoe
    Neither provide
    Off-camera flashes open new possibilities
  • 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 Panasonic GM1

Your purchases support this site

Buy the Panasonic ZS100

Review Excerpt

  • Large Four Thirds sensor is impressive for a camera this small; Shares sensor and processor of GX7; Excellent image quality with class-leading high ISO performance; Responsive all-around performer; AF system is fast and accurate; Easy to use and responsive touchscreen; Built-in Wi-Fi with remote control and sharing features; Lightweight and pocketable design makes it easy to carry everywhere.

  • Can be awkward to use with larger lenses; Rear dial is easy to accidentally press; Lacks a hot-shoe for EVF or external flash; Weak built-in flash; 1/50s flash sync; No 1080p60 video; No external headphone jack or mic input.

  • Compact camera body; versatile 10x zoom lens; relatively good high ISO performance; fast autofocus; many good 4K video and photo features.

  • Soft lens at longer focal lengths; no tilting display; small electronic viewfinder; slippery finish on the camera body.

The Competition

Compared to Olympus E-PL6

Panasonic GM1
Olympus E-PL6
  • $479
  • 4/3
  • Focus peaking
  • Built-in Wi-Fi
  • $299
  • 4/3
  • Less expensive
  • In-Camera Image Stabilization
Panasonic ZS100
Olympus E-PL6
  • $498
  • 1 inch
  • Focus peaking
  • Eye-level viewfinder
  • $299
  • 4/3
  • Larger sensor
  • Bigger pixels

Compared to Panasonic GM5

Panasonic GM1
Panasonic GM5
  • $479
  • 4/3
  • Less expensive
  • Internal flash
  • $898
  • 4/3
  • Eye-level viewfinder
  • In-camera panoramas
Panasonic ZS100
Panasonic GM5
  • $498
  • 1 inch
  • In-Camera Image Stabilization
  • Shoot 4K video
  • $898
  • 4/3
  • Larger sensor
  • Bigger pixels

Compared to Panasonic GF7

Panasonic GM1
Panasonic GF7
  • $479
  • 4/3
  • $590
  • 4/3
  • Less expensive
  • In-camera panoramas
Panasonic ZS100
Panasonic GF7
  • $498
  • 1 inch
  • Eye-level viewfinder
  • In-Camera Image Stabilization
  • $590
  • 4/3
  • Larger sensor
  • Bigger pixels

Compared to Sony RX100 VI

Panasonic GM1
Sony RX100 VI
  • $479
  • 4/3
  • Larger sensor
  • Bigger pixels
  • $949
  • 1 inch
  • Eye-level viewfinder
  • In-Camera Image Stabilization
Panasonic ZS100
Sony RX100 VI
  • $498
  • 1 inch
  • Less expensive
  • More telephoto lens reach
  • $949
  • 1 inch
  • Slower slow-motion
  • Tiltable Screen

Compared to Sony RX100 VII

Panasonic GM1
Sony RX100 VII
  • $479
  • 4/3
  • Larger sensor
  • Bigger pixels
  • $1298
  • 1 inch
  • Eye-level viewfinder
  • In-Camera Image Stabilization
Panasonic ZS100
Sony RX100 VII
  • $498
  • 1 inch
  • Less expensive
  • More telephoto lens reach
  • $1298
  • 1 inch
  • Slower slow-motion
  • Tiltable Screen
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