• APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 51,200
  • 1 inch 116.2mm2
  • 20.2 megapixels
  • 24.00mm - 100.00mm (35mm eq.)

Buy From

Differences

Pentax K-S1 advantages over Canon G7X

  • Larger sensor
    APS-C vs 1 inch
    More sensor area. Bigger is (generally) better.
  • Eye-level viewfinder
    Eye-level vs Rear display only
    You'll be able to frame photos even when the sun is out
  • Bigger pixels
    ~ 4.29 vs 2.41 microns
    Better low-light and dynamic range (all else equal)
  • Higher effective ISO
    1,061 vs 556 iso
    Take photos in low light with less noise
  • Longer stills battery life
    More info 480 vs 210 shots
    Capture more photos
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • Optional anti-aliasing filter
    Optional vs Fixed
    Lets you choose sharper photos or reduced moiré
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Faster shutter
    1/6000 vs 1/2000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    51200 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Canon G7X advantages over Pentax K-S1

  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • 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
  • Integrated ND filter
    Yes vs No
    Shoot in daylight with a large aperture or slow shutter
  • Thinner
    40 mm vs 69 mm
    Thinner
  • Higher max flash sync
    1/2000 vs 1/180 sec
    Reduce the effect of ambient light in flash shots
  • Longer exposure
    250 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    6.6 fps vs 5.4 fps
    Faster JPEG shooting (burst mode)

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
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • 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

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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
  • 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
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Your purchases support this site

Buy the Pentax K-S1

Review Excerpt

  • Very compact body fits in a pants pocket; Zoom lens is both brighter and further-reaching than anything offered by its enthusiast compact rivals; Selfie-friendly tilting LCD monitor; Intuitive touch-screen interface; Very good image quality for its class; Wi-Fi connectivity gets photos on your phone

  • No electronic viewfinder; Soft corners at wide-angle; Flare issues and fringing shooting wide-open; Weak performance when shooting raw files; Tendency to underexpose in low light; Limited battery life

The Competition

Compared to Sony RX100 III

Pentax K-S1
Sony RX100 III
  • $502
  • APS-C
  • Larger sensor
  • Bigger pixels
  • $748
  • 1 inch
  • In-camera panoramas
  • Tiltable Screen
Canon G7X
Sony RX100 III
  • $1239
  • 1 inch
  • Touchscreen
  • More telephoto lens reach
  • $748
  • 1 inch
  • Eye-level viewfinder
  • In-camera panoramas

Compared to Panasonic LX100

Pentax K-S1
Panasonic LX100
  • $502
  • APS-C
  • Larger sensor
  • Higher effective ISO
  • $598
  • 4/3
  • Shoot 4K video
  • In-camera panoramas
Canon G7X
Panasonic LX100
  • $1239
  • 1 inch
  • Touchscreen
  • Tiltable Screen
  • $598
  • 4/3
  • Larger sensor
  • Eye-level viewfinder

Compared to Sony A58

Pentax K-S1
Sony A58
  • $502
  • APS-C
  • Lens selection
  • Higher effective ISO
  • $598
  • APS-C
  • Less expensive
  • In-camera panoramas
Canon G7X
Sony A58
  • $1239
  • 1 inch
  • Touchscreen
  • Built-in Wi-Fi
  • $598
  • APS-C
  • Less expensive
  • Larger sensor

Compared to Nikon D5500

Pentax K-S1
Nikon D5500
  • $502
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $697
  • APS-C
  • Tilt-swivel screen
  • Touchscreen
Canon G7X
Nikon D5500
  • $1239
  • 1 inch
  • Focus peaking
  • In-Camera Image Stabilization
  • $697
  • APS-C
  • Larger sensor
  • Tilt-swivel screen

Compared to 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
Canon G7X
Pentax K-S2
  • $1239
  • 1 inch
  • Touchscreen
  • Integrated ND filter
  • $499
  • APS-C
  • Tilt-swivel screen
  • Larger sensor
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