• APS-C 366.6mm2
  • 24.3 megapixels
  • ISO 100 - 25,600
  • 1/1.7 inch 43.3mm2
  • 12.0 megapixels
  • 28.00mm - 300.00mm (35mm eq.)

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Differences

Sony A5100 advantages over Olympus Stylus 1s

  • Larger sensor
    APS-C vs 1/1.7 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 3.92 vs 1.92 microns
    Better low-light and dynamic range (all else equal)
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Thinner
    35 mm vs 56 mm
    Thinner
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • More pixels
    24.3 vs 12.0 megapixels
    Higher resolution photos
  • Shoots 60p video
    Yes vs No
    A faster framerate can give you more editing options
  • Has anti-aliasing filter
    Filter vs No Filter
    Reduces unsightly moiré in photos
  • Faster shutter
    1/4000 vs 1/2000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    25600 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Olympus Stylus 1s advantages over Sony A5100

  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • In-Camera Image Stabilization
    Yes vs No
    Reduces the effects of camera shake at slower shutter speeds
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Higher max flash sync
    1/2000 vs 1/160 sec
    Reduce the effect of ambient light in flash shots
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Lacks anti-aliasing filter
    No Filter vs Filter
    Enjoy sharper photos
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    7.0 fps vs 6.0 fps
    Faster JPEG shooting (burst mode)
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos

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
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • Tiltable Screen
    Both provide
    Tilt the screen for shooting flexbility
  • RAW file ability
    Both provide
    Gives you more flexibility to develop your photos later
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • 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
  • 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
  • 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

Buy From

Your purchases support this site

Buy the Sony A5100

Your purchases support this site

Buy the Olympus Stylus 1s

Review Excerpt

  • Very small and comfortable form factor; Very good image quality for its class; New dual video record function; Quick autofocus and good dynamic range.

  • Lacks an EVF and external mode dial; No hot shoe; JPEG processing at higher ISOs not as good as some competing mid-level models.

The Competition

Compared to Nikon P7100

Sony A5100
Nikon P7100
  • $348
  • APS-C
  • Focus peaking
  • Larger sensor
  • $500
  • 1/1.7 inch
  • Eye-level viewfinder
  • In-Camera Image Stabilization
Olympus Stylus 1s
Nikon P7100
  • $549
  • 1/1.7 inch
  • Focus peaking
  • Touchscreen
  • $500
  • 1/1.7 inch
  • Less expensive
  • Shoots 24p video

Compared to Samsung NX1100

Sony A5100
Samsung NX1100
  • $348
  • APS-C
  • Lens selection
  • Focus peaking
  • $450
  • APS-C
  • Higher-res screen
  • Hot shoe
Olympus Stylus 1s
Samsung NX1100
  • $549
  • 1/1.7 inch
  • Focus peaking
  • Eye-level viewfinder
  • $450
  • APS-C
  • Larger sensor
  • Less expensive

Compared to Sony NEX-5T

Sony A5100
Sony NEX-5T
  • $348
  • APS-C
  • Higher effective ISO
  • Longer stills battery life
  • $299
  • APS-C
  • Bigger pixels
  • Higher-res screen
Olympus Stylus 1s
Sony NEX-5T
  • $549
  • 1/1.7 inch
  • Eye-level viewfinder
  • In-Camera Image Stabilization
  • $299
  • APS-C
  • Larger sensor
  • Bigger pixels

Compared to Olympus Stylus 1

Sony A5100
Olympus Stylus 1
  • $348
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $449
  • 1/1.7 inch
  • Eye-level viewfinder
  • In-Camera Image Stabilization
Olympus Stylus 1s
Olympus Stylus 1
  • $549
  • 1/1.7 inch
  • $449
  • 1/1.7 inch
  • Faster JPEG shooting

Compared to Sony A5000

Sony A5100
Sony A5000
  • $348
  • APS-C
  • Touchscreen
  • Higher effective ISO
  • $298
  • APS-C
  • Less expensive
Olympus Stylus 1s
Sony A5000
  • $549
  • 1/1.7 inch
  • Eye-level viewfinder
  • In-Camera Image Stabilization
  • $298
  • APS-C
  • Larger sensor
  • Bigger pixels
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