• 4/3 224.9mm2
  • 16.1 megapixels
  • ISO 160 - 12,800
  • APS-C 366.6mm2
  • 20.1 megapixels
  • ISO 100 - 51,200

Buy From

Differences

Panasonic G5 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
  • Lighter weight
    575g vs 765g
    Lighter weight
  • More viewfinder magnification
    0.70x vs 0.63x
    Get a bigger view of the scene through the eye-level viewfinder
  • Longer exposure
    60 vs 30 sec
    Long exposures for night shots
  • Faster JPEG shooting
    6.2 fps vs 5.4 fps
    Faster JPEG shooting (burst mode)

Pentax K-S1 advantages over Panasonic G5

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    APS-C vs 4/3
    More sensor area. Bigger is (generally) better.
  • 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 310 shots
    Capture more photos
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • More pixels
    20.1 vs 16.1 megapixels
    Higher resolution photos
  • Optional anti-aliasing filter
    Optional vs Fixed
    Lets you choose sharper photos or reduced moiré
  • Faster shutter
    1/6000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    51200 vs 12800 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Eye-level viewfinder
    Both provide
    You'll be able to frame photos even when the sun is out
  • Internal flash
    Both provide
    Useful in a pinch for fill flash
  • 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

  • In-camera panoramas
    Neither provide
    Stitches multiple shots into a panoramic photo
  • 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
  • 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 Panasonic G5
Body Only
  • Body Only
  • Kit with 14-42mm Lens
All G5 Deals

Your purchases support this site

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

Review Excerpt

  • Small, compact body with excellent focusing and exposure capabilities; Newly enhanced touchpanel LCD screen makes image capture and review a joy; Excellent HD video recording quality.

  • Some controls difficult to access; Too easy to activate menus and options while shooting; Lack of a microphone-in jack limits video recording usefulness.

  • Read our Panasonic G5 Review

The Competition

Compared to Panasonic GH3

Panasonic G5
Panasonic GH3
  • $550
  • 4/3
  • Higher-res screen
  • $798
  • 4/3
  • Tilt-swivel screen
  • Fast startup

Compare Panasonic G5 vs Panasonic GH3

Pentax K-S1
Panasonic GH3
  • $502
  • APS-C
  • Focus peaking
  • Larger sensor
  • $798
  • 4/3
  • Tilt-swivel screen
  • Touchscreen

Compare Pentax K-S1 vs Panasonic GH3

Compared to Panasonic G6

Panasonic G5
Panasonic G6
  • $550
  • 4/3
  • $399
  • 4/3
  • Less expensive
  • Tilt-swivel screen

Compare Panasonic G5 vs Panasonic G6

Pentax K-S1
Panasonic G6
  • $502
  • APS-C
  • Larger sensor
  • In-Camera Image Stabilization
  • $399
  • 4/3
  • Tilt-swivel screen
  • Touchscreen

Compare Pentax K-S1 vs Panasonic G6

Compared to Olympus E-M1

Panasonic G5
Olympus E-M1
  • $550
  • 4/3
  • Less expensive
  • Internal flash
  • $1099
  • 4/3
  • Focus peaking
  • In-Camera Image Stabilization

Compare Panasonic G5 vs Olympus E-M1

Pentax K-S1
Olympus E-M1
  • $502
  • APS-C
  • Larger sensor
  • Higher effective ISO
  • $1099
  • 4/3
  • Touchscreen
  • Tiltable Screen

Compare Pentax K-S1 vs Olympus E-M1

Compared to Nikon D5500

Panasonic G5
Nikon D5500
  • $550
  • 4/3
  • Less expensive
  • More viewfinder magnification
  • $597
  • APS-C
  • Tilt-swivel screen
  • Larger sensor

Compare Panasonic G5 vs Nikon D5500

Pentax K-S1
Nikon D5500
  • $502
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $597
  • APS-C
  • Tilt-swivel screen
  • Touchscreen

Compare Pentax K-S1 vs Nikon D5500

Compared to Pentax K-S2

Panasonic G5
Pentax K-S2
  • $550
  • 4/3
  • Touchscreen
  • Lighter weight
  • $499
  • APS-C
  • Focus peaking
  • Larger sensor

Compare Panasonic G5 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

Compare Other Cameras?