• Medium format 1,441.0mm2
  • 102.0 megapixels
  • ISO 100 - 12,800
  • 35mm 847.3mm2
  • 24.2 megapixels
  • ISO 100 - 51,200

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Differences

Fujifilm GFX 100 advantages over Panasonic S5 IIX

  • Larger sensor
    Medium format vs 35mm
    More sensor area. Bigger is (generally) better.
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • More pixels
    102.0 vs 24.2 megapixels
    Higher resolution photos
  • Longer exposure
    3600 vs 60 sec
    Long exposures for night shots
  • Faster shutter
    1/16000 vs 1/8000 sec
    Shoot wide open in bright light

Panasonic S5 IIX advantages over Fujifilm GFX 100

  • Tilt-swivel screen
    Tilt-swivel vs tilt-only
    Tilt and swivel the screen for maximum shooting flexibility
  • Bigger pixels
    ~ 5.93 vs 3.76 microns
    Better low-light and dynamic range (all else equal)
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Higher max flash sync
    1/250 vs 1/125 sec
    Reduce the effect of ambient light in flash shots
  • Newer
    19 months vs 5 years old
    Newer cameras often support more advanced features
  • Lighter weight
    714g vs 1400g
    Lighter weight
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Higher extended ISO
    204800 vs 102400 ISO
    Higher extended ISO can give more low-light flexibility

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 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
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • Built-in Bluetooth
    Both provide
    Always-on wireless connectivity
  • Top deck display
    Both provide
    Check settings with a screen on top of the camera
  • External Mic Jack
    Both provide
    Improved sound fidelity when shooting video
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • Dual card slots
    Both provide
    Gives you more storage flexibility
  • Headphone jack
    Both provide
    Monitor audio recording while you shoot video
  • Bulb shutter
    Both provide
    Hold the shutter open manually for long exposures

Common Weaknesses

  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in GPS
    Neither provide
    Geotag your photos
  • Internal flash
    Neither provide
    Useful in a pinch for fill flash

User reviews

Buy From

Review Excerpt

  • Outstanding image quality; Fast hybrid AF with phase-detect; 5fps bursts at full resolution; In-body image stabilization; Improved EVF; Weather sealing; 4K UHD & Cinema 4K at up to 30fps.

  • Big and bulky; Shallow buffer depth with RAW files; Vertical grip not as comfortable; Native lens selection still limited.

The Competition

Compared to Fujifilm GFX 50S

Fujifilm GFX 100
Fujifilm GFX 50S
  • $8899
  • Medium format
  • In-Camera Image Stabilization
  • Shoot 4K video
  • $5697
  • Medium format
  • Less expensive
  • Bigger pixels
Panasonic S5 IIX
Fujifilm GFX 50S
  • $2200
  • 35mm
  • Tilt-swivel screen
  • In-Camera Image Stabilization
  • $5697
  • Medium format
  • Larger sensor
  • More pixels

Compared to Fujifilm GFX 100S

Fujifilm GFX 100
Fujifilm GFX 100S
  • $8899
  • Medium format
  • Longer stills battery life
  • $4966
  • Medium format
  • Less expensive
  • Newer
Panasonic S5 IIX
Fujifilm GFX 100S
  • $2200
  • 35mm
  • Tilt-swivel screen
  • Bigger pixels
  • $4966
  • Medium format
  • Larger sensor
  • On-sensor phase detect

Compared to Fujifilm GFX 50S II

Fujifilm GFX 100
Fujifilm GFX 50S II
  • $8899
  • Medium format
  • Shoot 4K video
  • More viewfinder magnification
  • $3832
  • Medium format
  • Less expensive
  • Bigger pixels
Panasonic S5 IIX
Fujifilm GFX 50S II
  • $2200
  • 35mm
  • Tilt-swivel screen
  • Shoot 4K video
  • $3832
  • Medium format
  • Larger sensor
  • On-sensor phase detect

Compared to Canon R6 Mark II

Fujifilm GFX 100
Canon R6 Mark II
  • $8899
  • Medium format
  • Larger sensor
  • Top deck display
  • $2432
  • 35mm
  • Less expensive
  • Tilt-swivel screen
Panasonic S5 IIX
Canon R6 Mark II
  • $2200
  • 35mm
  • High resolution composite
  • Top deck display
  • $2432
  • 35mm
  • On-sensor phase detect
  • Has anti-aliasing filter

Compared to Panasonic S5 II

Fujifilm GFX 100
Panasonic S5 II
  • $8899
  • Medium format
  • Larger sensor
  • On-sensor phase detect
  • $2000
  • 35mm
  • Tilt-swivel screen
  • Bigger pixels
Panasonic S5 IIX
Panasonic S5 II
  • $2200
  • 35mm
  • $2000
  • 35mm
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