• 1 inch 116.2mm2
  • 20.1 megapixels
  • 24.00mm - 70.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 20.2 megapixels
  • 24.00mm - 840.00mm (35mm eq.)

Buy From

Differences

Sony RX100 IV advantages over Nikon A900

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    1 inch vs 1/2.3 inch
    More sensor area. Bigger is (generally) better.
  • Slower slow-motion
    1000 fps vs 120 fps
    Supports slower slow-mo
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Bigger pixels
    ~ 2.41 vs 1.19 microns
    Better low-light and dynamic range (all else equal)
  • Larger lens aperture
    f/1.8 vs f/3.4
    Take photos in low-light or isolate your subject
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Manual focus
    Yes vs No
    AF is for the weak. Real photographers focus manually.
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Higher-res screen
    307k vs 230k pixels
    More detail on the screen lets you judge focus and composition
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Longer exposure
    30 vs 8 sec
    Long exposures for night shots
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster JPEG shooting
    16.0 fps vs 7.0 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    40 vs 7 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster shutter
    1/32000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    25600 vs 3200 ISO
    Higher extended ISO can give more low-light flexibility

Nikon A900 advantages over Sony RX100 IV

  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • More telephoto lens reach
    840 mm vs 70 mm
    Capture objects farther away
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos

Similarities

Common Strengths

  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    Both provide
    Make sure you have a fast computer
  • In-camera panoramas
    Both provide
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • NFC
    Both provide
    Simplifies pairing your camera with supported phones
  • 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

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • Built-in GPS
    Neither provide
    Geotag your photos
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • 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

User reviews

Buy From

Your purchases support this site

Buy the Sony RX100 IV

Your purchases support this site

Buy the Nikon A900

Review Excerpt

  • Vastly improved burst speeds with deep buffer; Great performance with very fast autofocus; Very high resolution gives lots of detail in good light; High ISO noise levels much better than most pocket camera rivals; High-quality 4K video with uncompressed HDMI out; Super-fast High Frame Rate video; Same great pocket-friendly design.

  • Pricey for a compact camera; JPEGs can look over-processed at higher ISOs; Lens doesn't offer as much telephoto reach; Battery life not as good as predecessor; 24-70mm-equivalent lens can feel limiting.

The Competition

Compared to Sony RX100 III

Sony RX100 IV
Sony RX100 III
  • $898
  • 1 inch
  • Slower slow-motion
  • Shoot 4K video
  • $748
  • 1 inch
Nikon A900
Sony RX100 III
  • $397
  • 1/2.3 inch
  • Less expensive
  • Shoot 4K video
  • $748
  • 1 inch
  • Focus peaking
  • Larger sensor

Compared to Panasonic ZS60

Sony RX100 IV
Panasonic ZS60
  • $898
  • 1 inch
  • Slower slow-motion
  • Larger sensor
  • $448
  • 1/2.3 inch
  • Touchscreen
  • Fast startup
Nikon A900
Panasonic ZS60
  • $397
  • 1/2.3 inch
  • Tiltable Screen
  • NFC
  • $448
  • 1/2.3 inch
  • Focus peaking
  • Slower slow-motion

Compared to Sony RX100 V

Sony RX100 IV
Sony RX100 V
  • $898
  • 1 inch
  • Longer stills battery life
  • $998
  • 1 inch
  • On-sensor phase detect
  • Faster JPEG shooting
Nikon A900
Sony RX100 V
  • $397
  • 1/2.3 inch
  • Less expensive
  • Built-in Bluetooth
  • $998
  • 1 inch
  • Slower slow-motion
  • Focus peaking

Compared to Canon SX730 HS

Sony RX100 IV
Canon SX730 HS
  • $898
  • 1 inch
  • Focus peaking
  • Larger sensor
  • $399
  • 1/2.3 inch
  • Built-in Bluetooth
  • More telephoto lens reach
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

Compared to Sony RX100 VA

Sony RX100 IV
Sony RX100 VA
  • $898
  • 1 inch
  • Longer stills battery life
  • $998
  • 1 inch
  • On-sensor phase detect
  • Newer
Nikon A900
Sony RX100 VA
  • $397
  • 1/2.3 inch
  • Less expensive
  • Built-in Bluetooth
  • $998
  • 1 inch
  • Slower slow-motion
  • Focus peaking
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