• 1 inch 116.2mm2
  • 20.1 megapixels
  • 24.00mm - 70.00mm (35mm eq.)
  • APS-C 364.3mm2
  • 19.6 megapixels
  • ISO 100 - 6400

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Differences

Sony RX100 IV advantages over Sigma sd Quattro

  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Shoot 4K video
    4K (UHD) vs No
    Make sure you have a fast computer
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Thinner
    41 mm vs 90 mm
    Thinner
  • Higher max flash sync
    1/2000 vs 1/180 sec
    Reduce the effect of ambient light in flash shots
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Lighter weight
    295g vs 625g
    Lighter weight
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Faster RAW shooting
    8.6 fps vs 3.6 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    28 vs 14 shots
    Larger buffer for RAW shots (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/32000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    25600 vs 6400 ISO
    Higher extended ISO can give more low-light flexibility

Sigma sd Quattro advantages over Sony RX100 IV

  • Larger sensor
    APS-C vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.33 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Newer
    2 years vs 3 years old
    Newer cameras often support more advanced features
  • More dots on screen
    1620k vs 1229k dots
    Can mean greater resolution or a brighter screen
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • More viewfinder magnification
    0.73x vs 0.59x
    Get a bigger view of the scene through the eye-level viewfinder
  • Doesn't require an AA filter
    Yes vs No
    A unique sensor design provides sharp photos without moiré

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
  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • 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
  • 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
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Top deck display
    Neither provide
    Check settings with a screen on top of the camera
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • 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 Sigma sd Quattro

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
  • $798
  • 1 inch
  • Slower slow-motion
  • Shoot 4K video
  • $648
  • 1 inch
  • Less expensive
Sigma sd Quattro
Sony RX100 III
  • $732
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $648
  • 1 inch
  • Less expensive
  • In-Camera Image Stabilization

Compared to Canon G7X

Sony RX100 IV
Canon G7X
  • $798
  • 1 inch
  • Eye-level viewfinder
  • Shoot 4K video
  • $604
  • 1 inch
  • Less expensive
  • Touchscreen
Sigma sd Quattro
Canon G7X
  • $732
  • APS-C
  • Larger sensor
  • Eye-level viewfinder
  • $604
  • 1 inch
  • Less expensive
  • In-Camera Image Stabilization

Compared to Sigma sd Quattro H

Sony RX100 IV
Sigma sd Quattro H
  • $798
  • 1 inch
  • Less expensive
  • In-Camera Image Stabilization
  • $1099
  • APS-H
  • Larger sensor
  • Bigger pixels
Sigma sd Quattro
Sigma sd Quattro H
  • $732
  • APS-C
  • Less expensive
  • Bigger RAW buffer
  • $1099
  • APS-H
  • Larger sensor
  • More viewfinder magnification

Compared to Sony RX100 V

Sony RX100 IV
Sony RX100 V
  • $798
  • 1 inch
  • Longer stills battery life
  • $898
  • 1 inch
  • On-sensor phase detect
  • Newer
Sigma sd Quattro
Sony RX100 V
  • $732
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $898
  • 1 inch
  • In-Camera Image Stabilization
  • Shoot 4K video

Compared to Fujifilm X-H1

Sony RX100 IV
Fujifilm X-H1
  • $798
  • 1 inch
  • Less expensive
  • Slower slow-motion
  • $1649
  • APS-C
  • Larger sensor
  • Bigger pixels
Sigma sd Quattro
Fujifilm X-H1
  • $732
  • APS-C
  • Less expensive
  • More dots on screen
  • $1649
  • APS-C
  • Lens selection
  • In-Camera Image Stabilization
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