• 1/1.7 inch 43.3mm2
  • 12.0 megapixels
  • 37.00mm - 111.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 16.0 megapixels
  • 25.00mm - 300.00mm (35mm eq.)

Buy From

Differences

Pentax A40 advantages over Nikon S810c

  • Less expensive
    $300 vs $350 (MSRP)
    Save money for lenses or accessories
  • Larger sensor
    1/1.7 inch vs 1/2.3 inch
    More sensor area. Bigger is (generally) better.
  • Bigger pixels
    ~ 1.90 vs 1.34 microns
    Better low-light and dynamic range (all else equal)
  • Larger lens aperture
    f/2.8 vs f/3.3
    Take photos in low-light or isolate your subject
  • Manual focus
    Yes vs No
    AF is for the weak. Real photographers focus manually.
  • Lighter weight
    150g vs 216g
    Lighter weight

Nikon S810c advantages over Pentax A40

  • Touchscreen
    Touch vs No touch
    Interact with your camera just like your smartphone
  • In-camera panoramas
    Yes vs No
    Stitches multiple shots into a panoramic photo
  • Built-in Wi-Fi
    Wi-Fi vs None
    Share your photos wirelessly
  • More telephoto lens reach
    300 mm vs 111 mm
    Capture objects farther away
  • Built-in GPS
    GPS vs None
    Geotag your photos
  • External Mic Jack
    Jack vs No jack
    Improved sound fidelity when shooting video
  • Newer
    11 years vs 17 years old
    Newer cameras often support more advanced features
  • HDMI out
    HDMI out vs None
    Use HDMI output to monitor or review video
  • More dots on screen
    1229k vs 232k dots
    Can mean greater resolution or a brighter screen
  • Shoots 1080p video
    Yes vs No
    You'll want this if you shoot video
  • More pixels
    16.0 vs 12.0 megapixels
    Higher resolution photos
  • Headphone jack
    Yes vs No
    Monitor audio recording while you shoot video
  • Wider angle lens
    25 mm vs 37 mm
    Capture more of the scene
  • Faster shutter
    1/4000 vs 1/2000 sec
    Shoot wide open in bright light

Similarities

Common Strengths

  • In-Camera Image Stabilization
    Both provide
    Reduces the effects of camera shake at slower shutter speeds
  • Internal flash
    Both provide
    Useful in a pinch for fill flash

Common Weaknesses

  • Tilt-swivel screen
    Neither provide
    Tilt and swivel the screen for maximum shooting flexibility
  • Focus peaking
    Neither provide
    Your camera will highlight what's in focus
  • Eye-level viewfinder
    Neither provide
    You'll be able to frame photos even when the sun is out
  • Tiltable Screen
    Neither provide
    Tilt the screen for shooting flexbility
  • RAW file ability
    Neither provide
    Gives you more flexibility to develop your photos later
  • Built-in Bluetooth
    Neither provide
    Always-on wireless connectivity
  • On-sensor phase detect
    Neither provide
    Usually improves live view and video AF performance
  • Integrated ND filter
    Neither provide
    Shoot in daylight with a large aperture or slow shutter
  • Hot shoe
    Neither provide
    Off-camera flashes open new possibilities
  • Bulb shutter
    Neither provide
    Hold the shutter open manually for long exposures
  • Slow-motion videos
    Neither provide
    Shoot slow-motion videos

User reviews

Buy From

Your purchases support this site

Buy the Pentax A40

Your purchases support this site

Buy the Nikon S810c
Nikon S810c
All S810c Deals

Review Excerpt

The Competition

Compared to Pentax S12

Pentax A40
Pentax S12
  • $300
  • 1/1.7 inch
  • In-Camera Image Stabilization
  • $280
  • 1/1.7 inch

Compare Pentax A40 vs Pentax S12

Nikon S810c
Pentax S12
  • $350
  • 1/2.3 inch
  • In-Camera Image Stabilization
  • Touchscreen
  • $280
  • 1/1.7 inch
  • Less expensive
  • Larger sensor

Compare Nikon S810c vs Pentax S12

Compared to Samsung SL310

Pentax A40
Samsung SL310
  • $300
  • 1/1.7 inch
  • Manual focus
  • $230
  • 1/1.72 inch
  • Less expensive
  • Wider angle lens

Compare Pentax A40 vs Samsung SL310

Nikon S810c
Samsung SL310
  • $350
  • 1/2.3 inch
  • Touchscreen
  • In-camera panoramas
  • $230
  • 1/1.72 inch
  • Less expensive
  • Larger sensor

Compare Nikon S810c vs Samsung SL310

Compared to Samsung TL34HD

Pentax A40
Samsung TL34HD
  • $300
  • 1/1.7 inch
  • Manual focus
  • $330
  • 1/1.72 inch
  • HDMI out
  • More dots on screen

Compare Pentax A40 vs Samsung TL34HD

Nikon S810c
Samsung TL34HD
  • $350
  • 1/2.3 inch
  • Touchscreen
  • In-camera panoramas
  • $330
  • 1/1.72 inch
  • Larger sensor
  • Bigger pixels

Compare Nikon S810c vs Samsung TL34HD

Compared to Sony HX10V

Pentax A40
Sony HX10V
  • $300
  • 1/1.7 inch
  • Larger sensor
  • Bigger pixels
  • $375
  • 1/2.3 inch
  • More telephoto lens reach
  • Longer stills battery life

Compare Pentax A40 vs Sony HX10V

Nikon S810c
Sony HX10V
  • $350
  • 1/2.3 inch
  • Touchscreen
  • In-camera panoramas
  • $375
  • 1/2.3 inch
  • More telephoto lens reach
  • Longer stills battery life

Compare Nikon S810c vs Sony HX10V

Compared to Nikon S800c

Pentax A40
Nikon S800c
  • $300
  • 1/1.7 inch
  • Less expensive
  • Larger sensor
  • $280
  • 1/2.3 inch
  • Touchscreen
  • In-camera panoramas

Compare Pentax A40 vs Nikon S800c

Nikon S810c
Nikon S800c
  • $350
  • 1/2.3 inch
  • More telephoto lens reach
  • Longer stills battery life
  • $280
  • 1/2.3 inch

Compare Nikon S810c vs Nikon S800c

Compare Other Cameras?