• 1/2.3 inch 28.1mm2
  • 20.4 megapixels
  • 24.00mm - 1200.00mm (35mm eq.)
  • 1 inch 116.2mm2
  • 20.2 megapixels
  • 24.00mm - 70.00mm (35mm eq.)

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Differences

Sony HX400V advantages over Sony RX100 III

  • Less expensive
    $448 vs $748
    Save money for lenses or accessories
  • More telephoto lens reach
    1,200 mm vs 70 mm
    Capture objects farther away
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Faster shutter
    1/4000 vs 1/2000 sec
    Shoot wide open in bright light

Sony RX100 III advantages over Sony HX400V

  • 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.
  • 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/2.8
    Take photos in low-light or isolate your subject
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Thinner
    41 mm vs 103 mm
    Thinner
  • Lighter weight
    287g vs 660g
    Lighter weight
  • Less shutter lag
    0.15 vs 0.34 sec
    Focus and take a photo quickly (wide angle)
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Bigger JPEG buffer
    48 vs 10 shots
    Take more JPEG shots before waiting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    25600 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • 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
  • 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
  • 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
  • Touchscreen
    Neither provide
    Interact with your camera just like your smartphone
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • 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
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

User reviews

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Buy the Sony RX100 III
Sony RX100 Mark III
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Review Excerpt

  • Pocket-friendly design; Popup electronic viewfinder; Bright lens across the zoom range; 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; Wi-Fi wireless networking

  • Feels a little unbalanced without an accessory grip; Not as much telephoto reach as its siblings; Noise processing is heavier-handed than in earlier models; Quite pricey for a fixed-lens camera

  • Read our Sony RX100 III Review

The Competition

Compared to Sony RX100

Sony HX400V
Sony RX100
  • $448
  • 1/2.3 inch
  • Eye-level viewfinder
  • Tiltable Screen
  • $1074
  • 1 inch
  • Focus peaking
  • Larger sensor

Compare Sony HX400V vs Sony RX100

Sony RX100 III
Sony RX100
  • $748
  • 1 inch
  • Eye-level viewfinder
  • Tiltable Screen
  • $1074
  • 1 inch
  • More telephoto lens reach
  • Faster RAW shooting

Compare Sony RX100 III vs Sony RX100

Compared to Sony RX100 II

Sony HX400V
Sony RX100 II
  • $448
  • 1/2.3 inch
  • Less expensive
  • Eye-level viewfinder
  • $598
  • 1 inch
  • Focus peaking
  • Larger sensor

Compare Sony HX400V vs Sony RX100 II

Sony RX100 III
Sony RX100 II
  • $748
  • 1 inch
  • Eye-level viewfinder
  • Fast startup
  • $598
  • 1 inch
  • Less expensive
  • More telephoto lens reach

Compare Sony RX100 III vs Sony RX100 II

Compared to Canon G7X

Sony HX400V
Canon G7X
  • $448
  • 1/2.3 inch
  • Eye-level viewfinder
  • In-camera panoramas
  • $1239
  • 1 inch
  • Focus peaking
  • Larger sensor

Compare Sony HX400V vs Canon G7X

Sony RX100 III
Canon G7X
  • $748
  • 1 inch
  • Eye-level viewfinder
  • In-camera panoramas
  • $1239
  • 1 inch
  • Touchscreen
  • More telephoto lens reach

Compare Sony RX100 III vs Canon G7X

Compared to Panasonic LX100

Sony HX400V
Panasonic LX100
  • $448
  • 1/2.3 inch
  • Less expensive
  • Tiltable Screen
  • $598
  • 4/3
  • Focus peaking
  • Larger sensor

Compare Sony HX400V vs Panasonic LX100

Sony RX100 III
Panasonic LX100
  • $748
  • 1 inch
  • Tiltable Screen
  • Internal flash
  • $598
  • 4/3
  • Less expensive
  • Larger sensor

Compare Sony RX100 III vs Panasonic LX100

Compared to Sony HX300

Sony HX400V
Sony HX300
  • $448
  • 1/2.3 inch
  • In-camera panoramas
  • Built-in Wi-Fi
  • $600
  • 1/2.3 inch
  • Focus peaking

Compare Sony HX400V vs Sony HX300

Sony RX100 III
Sony HX300
  • $748
  • 1 inch
  • Larger sensor
  • Bigger pixels
  • $600
  • 1/2.3 inch
  • More telephoto lens reach
  • Faster shutter

Compare Sony RX100 III vs Sony HX300

Compare Other Cameras?