• 1/2.3 inch 28.1mm2
  • 16.0 megapixels
  • 25.00mm - 100.00mm (35mm eq.)
  • 35mm 847.3mm2
  • 24.2 megapixels
  • ISO 100 - 51,200

Buy From

Differences

Pentax WG-3 advantages over Sony A7 III

  • Waterproof
    Yes vs No
    Take photos underwater without destroying your camera!
  • Internal flash
    Internal flash vs None
    Useful in a pinch for fill flash
  • Thinner
    33 mm vs 73 mm
    Thinner

Sony A7 III advantages over Pentax WG-3

  • Focus peaking
    Peaker vs Non-peaker
    Your camera will highlight what's in focus
  • Larger sensor
    35mm vs 1/2.3 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
    ~ 5.93 vs 1.34 microns
    Better low-light and dynamic range (all else equal)
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • RAW file ability
    Yes vs No
    Gives you more flexibility to develop your photos later
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • NFC
    Yes vs No
    Simplifies pairing your camera with supported phones
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Longer stills battery life
    More info 710 vs 240 shots
    Capture more photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Newer
    7 years vs 12 years old
    Newer cameras often support more advanced features
  • Shoots 24p video
    Yes vs No
    Gives your movies a big-screen feel
  • More dots on screen
    922k vs 460k dots
    Can mean greater resolution or a brighter screen
  • Hot shoe
    Hot shoe vs None
    Off-camera flashes open new possibilities
  • More pixels
    24.2 vs 16.0 megapixels
    Higher resolution photos
  • Dual card slots
    Yes vs No
    Gives you more storage flexibility
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Longer exposure
    30 vs 4 sec
    Long exposures for night shots
  • Bulb shutter
    Bulb vs No bulb
    Hold the shutter open manually for long exposures
  • Slow-motion videos
    Yes vs No
    Shoot slow-motion videos
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    204800 vs 6400 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
  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • 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 GPS
    Neither provide
    Geotag your photos
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter

User reviews

Buy From

Your purchases support this site

Buy the Pentax WG-3
Pentax WG-3
All WG-3 Deals

Your purchases support this site

Buy the Sony A7 III
Body Only
  • Body Only
  • Kit with 28-70mm Lens
All A7 III Deals

Review Excerpt

  • New 24MP sensor offers excellent image quality; Outstanding high ISO performance and dynamic range; Improved JPEG colors; Improved build quality; Fast autofocus; Excellent 4K video; Very good battery life.

  • Buffer clearing can be slow even with fast UHS-II cards; UHS-II support only on one card slot; No losslessly compressed RAW option; Dedicated battery charger not included; Menus are still confusing; No built-in flash.

  • Read our Sony A7 III Review

The Competition

Compared to Pentax WG-3 GPS

Pentax WG-3
Pentax WG-3 GPS
  • $289
  • 1/2.3 inch
  • Less expensive
  • $229
  • 1/2.3 inch
  • In-camera panoramas
  • Built-in GPS

Compare Pentax WG-3 vs Pentax WG-3 GPS

Sony A7 III
Pentax WG-3 GPS
  • $1531
  • 35mm
  • Focus peaking
  • Larger sensor
  • $229
  • 1/2.3 inch
  • Waterproof
  • In-camera panoramas

Compare Sony A7 III vs Pentax WG-3 GPS

Compared to Ricoh WG-4 GPS

Pentax WG-3
Ricoh WG-4 GPS
  • $289
  • 1/2.3 inch
  • Less expensive
  • $380
  • 1/2.3 inch
  • In-camera panoramas
  • Built-in GPS

Compare Pentax WG-3 vs Ricoh WG-4 GPS

Sony A7 III
Ricoh WG-4 GPS
  • $1531
  • 35mm
  • Focus peaking
  • Larger sensor
  • $380
  • 1/2.3 inch
  • Waterproof
  • In-camera panoramas

Compare Sony A7 III vs Ricoh WG-4 GPS

Compared to Ricoh WG-5 GPS

Pentax WG-3
Ricoh WG-5 GPS
  • $289
  • 1/2.3 inch
  • Less expensive
  • $297
  • 1/2.3 inch
  • In-camera panoramas
  • Built-in GPS

Compare Pentax WG-3 vs Ricoh WG-5 GPS

Sony A7 III
Ricoh WG-5 GPS
  • $1531
  • 35mm
  • Focus peaking
  • Larger sensor
  • $297
  • 1/2.3 inch
  • Waterproof
  • In-camera panoramas

Compare Sony A7 III vs Ricoh WG-5 GPS

Compared to Nikon Z6

Pentax WG-3
Nikon Z6
  • $289
  • 1/2.3 inch
  • Waterproof
  • Internal flash
  • $1396
  • 35mm
  • Focus peaking
  • Larger sensor

Compare Pentax WG-3 vs Nikon Z6

Sony A7 III
Nikon Z6
  • $1531
  • 35mm
  • Less expensive
  • NFC
  • $1396
  • 35mm
  • Top deck display
  • More dots on screen

Compare Sony A7 III vs Nikon Z6

Compared to Nikon Z6 II

Pentax WG-3
Nikon Z6 II
  • $289
  • 1/2.3 inch
  • Waterproof
  • Internal flash
  • $1747
  • 35mm
  • Focus peaking
  • Larger sensor

Compare Pentax WG-3 vs Nikon Z6 II

Sony A7 III
Nikon Z6 II
  • $1531
  • 35mm
  • Less expensive
  • NFC
  • $1747
  • 35mm
  • Top deck display
  • Newer

Compare Sony A7 III vs Nikon Z6 II

Compare Other Cameras?