• APS-C 369.7mm2
  • 16.2 megapixels
  • 28.00mm (35mm eq.)
  • APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 51,200

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Differences

Ricoh GR advantages over Pentax K-S1

  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Thinner
    34 mm vs 69 mm
    Thinner
  • Higher max flash sync
    1/4000 vs 1/180 sec
    Reduce the effect of ambient light in flash shots
  • Longer exposure
    300 vs 30 sec
    Long exposures for night shots
  • Bigger JPEG buffer
    Unlimited vs 20 shots
    Take more JPEG shots before waiting (burst mode)

Pentax K-S1 advantages over Ricoh GR

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • 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
  • Longer stills battery life
    More info 480 vs 290 shots
    Capture more photos
  • More pixels
    20.1 vs 16.2 megapixels
    Higher resolution photos
  • Optional anti-aliasing filter
    Optional vs None
    Lets you choose sharper photos or reduced moiré
  • Faster JPEG shooting
    5.4 fps vs 4.0 fps
    Faster JPEG shooting (burst mode)
  • Faster shutter
    1/6000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    51200 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Rear display
    Both provide
    Review photos on the back of the camera
  • 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.
  • HDMI out
    Both provide
    Use HDMI output to monitor or review video
  • Hot shoe
    Both provide
    Off-camera flashes open new possibilities
  • 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
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • Built-in Wi-Fi
    Neither provide
    Share your photos wirelessly
  • NFC
    Neither provide
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • Built-in GPS
    Neither provide
    Geotag your photos
  • 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
  • Dual card slots
    Neither provide
    Gives you more storage flexibility
  • Headphone jack
    Neither provide
    Monitor audio recording while you shoot video
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

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Buy the Ricoh GR

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Buy the Pentax K-S1
Body Only
  • Body Only
  • Kit with 18-55mm and 50-200mm Lenses
All K-S1 Deals

Review Excerpt

  • The most compact APS-C camera on the market; Bright, sharp 28mm f/2.8 prime lens with almost no distortion; Excellent image quality; Extremely customizable; Fast autofocus; Strong built-in flash plus hot shoe.

  • Fixed prime lens is not for everybody; Crowded and small controls; Burst performance is limited; Muted colors and cool white balance; Has issues with moire and false color.

  • Read our Ricoh GR Review

The Competition

Compared to Sony A58

Ricoh GR
Sony A58
  • $799
  • APS-C
  • Higher effective ISO
  • Integrated ND filter
  • $598
  • APS-C
  • Less expensive
  • Focus peaking

Compare Ricoh GR vs Sony A58

Pentax K-S1
Sony A58
  • $502
  • APS-C
  • Lens selection
  • Higher effective ISO
  • $598
  • APS-C
  • Less expensive
  • In-camera panoramas

Compare Pentax K-S1 vs Sony A58

Compared to Nikon Coolpix A

Ricoh GR
Nikon Coolpix A
  • $799
  • APS-C
  • Less expensive
  • Longer stills battery life
  • $1097
  • APS-C
  • Higher effective ISO
  • Bigger RAW buffer

Compare Ricoh GR vs Nikon Coolpix A

Pentax K-S1
Nikon Coolpix A
  • $502
  • APS-C
  • Focus peaking
  • Less expensive
  • $1097
  • APS-C
  • Thinner
  • Higher max flash sync

Compare Pentax K-S1 vs Nikon Coolpix A

Compared to Pentax K-S2

Ricoh GR
Pentax K-S2
  • $799
  • APS-C
  • Integrated ND filter
  • Thinner
  • $499
  • APS-C
  • Focus peaking
  • Tilt-swivel screen

Compare Ricoh GR vs Pentax K-S2

Pentax K-S1
Pentax K-S2
  • $502
  • APS-C
  • Higher-res screen
  • $499
  • APS-C
  • Tilt-swivel screen
  • Built-in Wi-Fi

Compare Pentax K-S1 vs Pentax K-S2

Compared to Ricoh GR II

Ricoh GR
Ricoh GR II
  • $799
  • APS-C
  • $538
  • APS-C
  • Built-in Wi-Fi
  • NFC

Compare Ricoh GR vs Ricoh GR II

Pentax K-S1
Ricoh GR II
  • $502
  • APS-C
  • Focus peaking
  • Eye-level viewfinder
  • $538
  • APS-C
  • Built-in Wi-Fi
  • NFC

Compare Pentax K-S1 vs Ricoh GR II

Compared to Fujifilm X70

Ricoh GR
Fujifilm X70
  • $799
  • APS-C
  • Integrated ND filter
  • Higher max flash sync
  • $699
  • APS-C
  • Focus peaking
  • Touchscreen

Compare Ricoh GR vs Fujifilm X70

Pentax K-S1
Fujifilm X70
  • $502
  • APS-C
  • Eye-level viewfinder
  • In-Camera Image Stabilization
  • $699
  • APS-C
  • Touchscreen
  • In-camera panoramas

Compare Pentax K-S1 vs Fujifilm X70

Compare Other Cameras?