• APS-C 366.6mm2
  • 16.1 megapixels
  • ISO 100 - 25,600
  • APS-C 361.2mm2
  • 25.7 megapixels
  • ISO 100 - 1,600,000

Buy From

Differences

Sony NEX-5R advantages over Pentax K-3 III

  • Bigger pixels
    ~ 4.78 vs 3.76 microns
    Better low-light and dynamic range (all else equal)
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Tiltable Screen
    Tiltable vs Fixed
    Tilt the screen for shooting flexbility
  • On-sensor phase detect
    Yes vs No
    Usually improves live view and video AF performance
  • Thinner
    38 mm vs 73 mm
    Thinner

Pentax K-3 III advantages over Sony NEX-5R

  • Lens selection
    Excellent vs Good
    Better lens selection gives you more options
  • 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
  • Shoot 4K video
    4K (UHD) vs 1080p
    Make sure you have a fast computer
  • High resolution composite
    Yes vs No
    Combine multiple shots to form a super hi-res version
  • Built-in Bluetooth
    Yes vs No
    Always-on wireless connectivity
  • Longer stills battery life
    More info 800 vs 330 shots
    Capture more photos
  • Top deck display
    Yes vs No
    Check settings with a screen on top of the camera
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Newer
    4 years vs 12 years old
    Newer cameras often support more advanced features
  • More dots on screen
    1620k vs 922k dots
    Can mean greater resolution or a brighter screen
  • More pixels
    25.7 vs 16.1 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
  • Optional anti-aliasing filter
    Optional vs Fixed
    Lets you choose sharper photos or reduced moiré
  • Faster JPEG shooting
    12.0 fps vs 10.0 fps
    Faster JPEG shooting (burst mode)
  • Faster shutter
    1/8000 vs 1/4000 sec
    Shoot wide open in bright light
  • Higher extended ISO
    1600000 vs 25600 ISO
    Higher extended ISO can give more low-light flexibility

Similarities

Common Strengths

  • Focus peaking
    Both provide
    Your camera will highlight what's in focus
  • Touchscreen
    Both provide
    Interact with your camera just like your smartphone
  • Built-in Wi-Fi
    Both provide
    Share your photos wirelessly
  • 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

  • Built-in GPS
    Neither provide
    Geotag your photos
  • Internal flash
    Neither provide
    Useful in a pinch for fill flash
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Your purchases support this site

Buy the Sony NEX-5R

Your purchases support this site

Buy the Pentax K-3 III

Review Excerpt

The Competition

Compared to Sony NEX-C3

Sony NEX-5R
Sony NEX-C3
  • $499
  • APS-C
  • Focus peaking
  • Touchscreen
  • $559
  • APS-C
  • Less expensive
  • Higher effective ISO
Pentax K-3 III
Sony NEX-C3
  • $1847
  • APS-C
  • Lens selection
  • Focus peaking
  • $559
  • APS-C
  • Bigger pixels
  • In-camera panoramas

Compared to Sony NEX-5N

Sony NEX-5R
Sony NEX-5N
  • $499
  • APS-C
  • Focus peaking
  • Touchscreen
  • $700
  • APS-C
  • Higher effective ISO
  • Longer stills battery life
Pentax K-3 III
Sony NEX-5N
  • $1847
  • APS-C
  • Lens selection
  • Focus peaking
  • $700
  • APS-C
  • Bigger pixels
  • In-camera panoramas

Compared to Canon EOS M

Sony NEX-5R
Canon EOS M
  • $499
  • APS-C
  • Lens selection
  • Focus peaking
  • $600
  • APS-C
  • Less expensive
  • External Mic Jack
Pentax K-3 III
Canon EOS M
  • $1847
  • APS-C
  • Lens selection
  • Focus peaking
  • $600
  • APS-C
  • On-sensor phase detect
  • Thinner

Compared to Pentax KP

Sony NEX-5R
Pentax KP
  • $499
  • APS-C
  • Bigger pixels
  • Touchscreen
  • $999
  • APS-C
  • Lens selection
  • Eye-level viewfinder
Pentax K-3 III
Pentax KP
  • $1847
  • APS-C
  • Shoot 4K video
  • Touchscreen
  • $999
  • APS-C
  • Less expensive
  • Tiltable Screen

Compared to Canon 90D

Sony NEX-5R
Canon 90D
  • $499
  • APS-C
  • Focus peaking
  • Bigger pixels
  • $1099
  • APS-C
  • Lens selection
  • Tilt-swivel screen
Pentax K-3 III
Canon 90D
  • $1847
  • APS-C
  • Focus peaking
  • In-Camera Image Stabilization
  • $1099
  • APS-C
  • Less expensive
  • Tilt-swivel screen
Compare Other Cameras?