• APS-C 368.2mm2
  • 16.3 megapixels
  • 35.00mm (35mm eq.)
  • 1 inch 116.2mm2
  • 20.1 megapixels
  • 24.00mm - 70.00mm (35mm eq.)

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Differences

Fujifilm X100S advantages over Sony RX100 IV

  • Larger sensor
    APS-C vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 4.82 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
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Doesn't require an AA filter
    Yes vs No
    A unique sensor design provides sharp photos without moiré

Sony RX100 IV advantages over Fujifilm X100S

  • Less expensive
    $1000 vs $1300 (MSRP)
    Save money for lenses or accessories
  • 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
  • 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
  • More telephoto lens reach
    70 mm vs 35 mm
    Capture objects farther away
  • Thinner
    41 mm vs 53 mm
    Thinner
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Lighter weight
    295g vs 449g
    Lighter weight
  • Higher-res screen
    307k vs 153k pixels
    More detail on the screen lets you judge focus and composition
  • Less shutter lag
    0.16 vs 0.32 sec
    Focus and take a photo quickly (wide angle)
  • More viewfinder magnification
    0.59x vs 0.50x
    Get a bigger view of the scene through the eye-level viewfinder
  • More pixels
    20.1 vs 16.3 megapixels
    Higher resolution photos
  • Wider angle lens
    24 mm vs 35 mm
    Capture more of the scene
  • Faster JPEG shooting
    16.0 fps vs 5.7 fps
    Faster JPEG shooting (burst mode)
  • Bigger JPEG buffer
    40 vs 16 shots
    Take more JPEG shots before waiting (burst mode)
  • Faster RAW shooting
    8.6 fps vs 5.7 fps
    Faster RAW shooting in burst mode
  • Bigger RAW buffer
    28 vs 8 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

Similarities

Common Strengths

  • 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
  • In-camera panoramas
    Both provide
    Stitches multiple shots into a panoramic photo
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • Manual focus
    Both provide
    AF is for the weak. Real photographers focus manually.
  • Integrated ND filter
    Both provide
    Shoot in daylight with a large aperture or slow shutter
  • 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
  • External Mic Jack
    Neither provide
    Improved sound fidelity when shooting video
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video

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Buy the Fujifilm X100S

Your purchases support this site

Buy the Sony RX100 IV

Review Excerpt

  • Attractive, retro rangefinder-style design; Improved (excellent) still image quality that's even better thanks to second generation X-Trans sensor technology; Great, sharp f/2 35mm-equivalent lens; Overall better operation and performance than the X100; Addition of phase-detect pixels makes bright light autofocusing faster.

  • Low-light AF slow and inconsistent; Video quality, even at 60p, compromised by moire and lack of image stabilization; Combined four-way pad/Command dial means AF control points cumbersome to change; Too easy to bump control dials and change settings accidentally (especially the EV dial).

  • 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 Fujifilm X100

Fujifilm X100S
Fujifilm X100
  • $1099
  • APS-C
  • Focus peaking
  • In-camera panoramas
  • $1200
  • APS-C
  • Shoots 24p video
Sony RX100 IV
Fujifilm X100
  • $898
  • 1 inch
  • Less expensive
  • Focus peaking
  • $1200
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Sony RX100 III

Fujifilm X100S
Sony RX100 III
  • $1099
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $748
  • 1 inch
  • In-Camera Image Stabilization
  • Tiltable Screen
Sony RX100 IV
Sony RX100 III
  • $898
  • 1 inch
  • Slower slow-motion
  • Shoot 4K video
  • $748
  • 1 inch

Compared to Fujifilm X100T

Fujifilm X100S
Fujifilm X100T
  • $1099
  • APS-C
  • $1299
  • APS-C
  • Built-in Wi-Fi
  • External Mic Jack
Sony RX100 IV
Fujifilm X100T
  • $898
  • 1 inch
  • Less expensive
  • In-Camera Image Stabilization
  • $1299
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Sony RX100 V

Fujifilm X100S
Sony RX100 V
  • $1099
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $998
  • 1 inch
  • In-Camera Image Stabilization
  • Shoot 4K video
Sony RX100 IV
Sony RX100 V
  • $898
  • 1 inch
  • Longer stills battery life
  • $998
  • 1 inch
  • On-sensor phase detect
  • Faster JPEG shooting

Compared to Fujifilm X100F

Fujifilm X100S
Fujifilm X100F
  • $1099
  • APS-C
  • Bigger pixels
  • $899
  • APS-C
  • Fast startup
  • Built-in Wi-Fi
Sony RX100 IV
Fujifilm X100F
  • $898
  • 1 inch
  • In-Camera Image Stabilization
  • Shoot 4K video
  • $899
  • APS-C
  • Larger sensor
  • Bigger pixels
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