• 1/2.3 inch 28.1mm2
  • 12.1 megapixels
  • 25.00mm - 450.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 20.2 megapixels
  • 24.00mm - 840.00mm (35mm eq.)

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Differences

Nikon S9100 advantages over Nikon A900

  • Slower slow-motion
    240 fps vs 120 fps
    Supports slower slow-mo
  • Bigger pixels
    ~ 1.54 vs 1.19 microns
    Better low-light and dynamic range (all else equal)
  • Lighter weight
    212g vs 289g
    Lighter weight
  • Faster JPEG shooting
    9.5 fps vs 7.0 fps
    Faster JPEG shooting (burst mode)

Nikon A900 advantages over Nikon S9100

  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • More telephoto lens reach
    840 mm vs 450 mm
    Capture objects farther away
  • Newer
    9 years vs 14 years old
    Newer cameras often support more advanced features
  • More pixels
    20.2 vs 12.1 megapixels
    Higher resolution photos
  • Longer exposure
    8 vs 4 sec
    Long exposures for night shots

Similarities

Common Strengths

  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • In-camera panoramas
    Both provide
    Stitches multiple shots into a panoramic photo
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Slow-motion videos
    Both provide
    Shoot slow-motion videos

Common Weaknesses

  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Eye-level viewfinder
    Neither provide
    You'll be able to frame photos even when the sun is out
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • RAW file ability
    Neither provide
    Gives you more flexibility to develop your photos later
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Manual focus
    Neither provide
    AF is for the weak. Real photographers focus manually.
  • 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
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Bulb shutter
    Neither provide
    Hold the shutter open manually for long exposures

User reviews

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Buy the Nikon S9100

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Buy the Nikon A900
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  • Nikon A900 (Silver)
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Review Excerpt

  • Backside-illuminated sensor for good low-light performance; Very long zoom; Good printed performance; Very fast autofocus.

  • Autofocus is not always reliable; Auto white balance renders skin tones a little red; Slow digital zoom.

  • Read our Nikon S9100 Express Review

The Competition

Compared to Pentax RZ18

Nikon S9100
Pentax RZ18
  • $254
  • 1/2.3 inch
  • Bigger pixels
  • In-camera panoramas
  • $210
  • 1/2.33 inch
  • Manual focus
  • More pixels

Compare Nikon S9100 vs Pentax RZ18

Nikon A900
Pentax RZ18
  • $397
  • 1/2.3 inch
  • Shoot 4K video
  • In-camera panoramas
  • $210
  • 1/2.33 inch
  • Manual focus
  • Lighter weight

Compare Nikon A900 vs Pentax RZ18

Compared to Panasonic ZS15

Nikon S9100
Panasonic ZS15
  • $254
  • 1/2.3 inch
  • In-camera panoramas
  • More telephoto lens reach
  • $273
  • 1/2.3 inch
  • Less expensive
  • Longer exposure

Compare Nikon S9100 vs Panasonic ZS15

Nikon A900
Panasonic ZS15
  • $397
  • 1/2.3 inch
  • Shoot 4K video
  • In-camera panoramas
  • $273
  • 1/2.3 inch
  • Bigger pixels
  • Lighter weight

Compare Nikon A900 vs Panasonic ZS15

Compared to Canon SX280 HS

Nikon S9100
Canon SX280 HS
  • $254
  • 1/2.3 inch
  • In-camera panoramas
  • Longer stills battery life
  • $300
  • 1/2.3 inch
  • Built-in Wi-Fi
  • Built-in GPS

Compare Nikon S9100 vs Canon SX280 HS

Nikon A900
Canon SX280 HS
  • $397
  • 1/2.3 inch
  • Shoot 4K video
  • In-camera panoramas
  • $300
  • 1/2.3 inch
  • Bigger pixels
  • Built-in GPS

Compare Nikon A900 vs Canon SX280 HS

Compared to Panasonic ZS60

Nikon S9100
Panasonic ZS60
  • $254
  • 1/2.3 inch
  • Bigger pixels
  • Lighter weight
  • $448
  • 1/2.3 inch
  • Focus peaking
  • Eye-level viewfinder

Compare Nikon S9100 vs Panasonic ZS60

Nikon A900
Panasonic ZS60
  • $397
  • 1/2.3 inch
  • Tiltable Screen
  • NFC
  • $448
  • 1/2.3 inch
  • Focus peaking
  • Slower slow-motion

Compare Nikon A900 vs Panasonic ZS60

Compared to Canon SX730 HS

Nikon S9100
Canon SX730 HS
  • $254
  • 1/2.3 inch
  • Bigger pixels
  • In-camera panoramas
  • $399
  • 1/2.3 inch
  • Tiltable Screen
  • Built-in Wi-Fi

Compare Nikon S9100 vs Canon SX730 HS

Nikon A900
Canon SX730 HS
  • $397
  • 1/2.3 inch
  • Shoot 4K video
  • In-camera panoramas
  • $399
  • 1/2.3 inch
  • Manual focus
  • Higher-res screen

Compare Nikon A900 vs Canon SX730 HS

Compare Other Cameras?