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Canon A3100 IS vs Pentax WG-3 GPS

Portability
94
Imaging
35
Features
14
Overall
26
Canon PowerShot A3100 IS front
 
Pentax WG-3 GPS front
Portability
90
Imaging
40
Features
43
Overall
41

Canon A3100 IS vs Pentax WG-3 GPS Key Specs

Canon A3100 IS
(Full Review)
  • 12MP - 1/2.3" Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 1600
  • Optical Image Stabilization
  • 640 x 480 video
  • 35-140mm (F2.7-5.6) lens
  • 165g - 97 x 58 x 28mm
  • Introduced January 2010
Pentax WG-3 GPS
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Fixed Screen
  • ISO 125 - 6400
  • Sensor-shift Image Stabilization
  • 1920 x 1080 video
  • 25-100mm (F2.0-4.9) lens
  • 238g - 125 x 64 x 33mm
  • Revealed July 2013
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Canon A3100 IS vs Pentax WG-3 GPS Overview

Below, we will be matching up the Canon A3100 IS and Pentax WG-3 GPS, former being a Small Sensor Compact while the latter is a Waterproof by brands Canon and Pentax. There exists a large gap between the resolutions of the A3100 IS (12MP) and WG-3 GPS (16MP) but they possess the exact same sensor dimensions (1/2.3").

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The A3100 IS was unveiled 4 years earlier than the WG-3 GPS and that is quite a serious difference as far as technology is concerned. Both of the cameras come with the identical body type (Compact).

Before diving straight into a in depth comparison, below is a quick summary of how the A3100 IS scores vs the WG-3 GPS in relation to portability, imaging, features and an overall rating.

Photography Glossary
	
	

Reasons to pick Canon A3100 IS over the Pentax WG-3 GPS

 A3100 IS WG-3 GPS 

Reasons to pick Pentax WG-3 GPS over the Canon A3100 IS

 WG-3 GPS A3100 IS 
RevealedJuly 2013January 2010Fresher by 43 months
Manual focus Dial accurate focus
Screen dimension3"2.7"Bigger screen (+0.3")
Screen resolution460k230kClearer screen (+230k dot)

Common features in the Canon A3100 IS and Pentax WG-3 GPS

 A3100 IS WG-3 GPS 
Screen typeFixed Fixed Fixed screen
Selfie screen Neither contains selfie screen
Touch friendly screen Neither contains Touch friendly screen

Canon A3100 IS vs Pentax WG-3 GPS Physical Comparison

For anybody who is going to carry your camera, you should take into account its weight and proportions. The Canon A3100 IS has got outside dimensions of 97mm x 58mm x 28mm (3.8" x 2.3" x 1.1") along with a weight of 165 grams (0.36 lbs) and the Pentax WG-3 GPS has measurements of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") with a weight of 238 grams (0.52 lbs).

Analyze the Canon A3100 IS and Pentax WG-3 GPS in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Remember, the weight of an ILC will differ dependant on the lens you are using during that time. Here is the front view sizing comparison of the A3100 IS against the WG-3 GPS.

Canon A3100 IS vs Pentax WG-3 GPS size comparison

Taking into account dimensions and weight, the portability score of the A3100 IS and WG-3 GPS is 94 and 90 respectively.

Canon A3100 IS vs Pentax WG-3 GPS top view buttons comparison

Canon A3100 IS vs Pentax WG-3 GPS Sensor Comparison

Normally, it is very difficult to envision the gap between sensor sizing only by going over a spec sheet. The visual below will help offer you a greater sense of the sensor dimensions in the A3100 IS and WG-3 GPS.

As you can see, both of the cameras have got the exact same sensor measurements albeit not the same megapixels. You can expect the Pentax WG-3 GPS to deliver more detail having an extra 4 Megapixels. Higher resolution can also help you crop pictures much more aggressively. The older A3100 IS is going to be behind when it comes to sensor innovation.

Canon A3100 IS vs Pentax WG-3 GPS sensor size comparison

Canon A3100 IS vs Pentax WG-3 GPS Screen and ViewFinder

Canon A3100 IS vs Pentax WG-3 GPS Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Canon A3100 IS Portrait photography information
Pentax WG-3 GPS Portrait photography information
21
focusing manually not possible
no manual exposure
external flash not possible
low megapixels (12 megapixels)
small sensor size (1/2.3")
lack of RAW format
41
focusing manually
megapixel count decent (16MP)
supports face detect focusing
manual mode not possible
no external flash support
very small sensor (1/2.3")
does not have RAW format
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Street Comparison

Street photography with Canon A3100 IS
Street photography with Pentax WG-3 GPS
56
built in image stabilization (Optical)
fixed screen
small sensor size (1/2.3")
lack of RAW format
59
built in image stabilization (Sensor-shift)
weather proof
screen does not articulate
very small sensor (1/2.3")
does not have RAW format
heavier than average in class (238g)
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Sports Comparison

Canon A3100 IS Sports photography information
Pentax WG-3 GPS Sports photography information
25
built in image stabilization (Optical)
max frames per second low (1.0 frames/s)
lack of shutter priority mode
low megapixels (12 megapixels)
small sensor size (1/2.3")
lack of phase detect auto focus
45
built in image stabilization (Sensor-shift)
megapixel count decent (16 megapixels)
supports tracking focus
weather proof
lack of shutter priority mode
very small sensor (1/2.3")
low battery life (240 per charge)
does not have phase detect AF
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Travel Comparison

Canon A3100 IS as a Travel photography camera
Pentax WG-3 GPS as a Travel photography camera
51
has built in flash
does not have Time Lapse recording
low megapixels (12MP)
display is not selfie friendly
wide angle not fantastic (35mm)
slow max aperture (f2.7)
69
weather proof
megapixel count decent (16 megapixels)
has built in flash
rather wide (25mm)
fast maximum aperture (f2.0)
low battery life (240 CIPA)
heavier than average in class (238 grams)
does not have a selfie friendly screen
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Landscape Comparison

Landscape photography with Canon A3100 IS
Landscape photography with Pentax WG-3 GPS
27
built in image stabilization (Optical)
focusing manually not possible
lens is fixed (fixed lens mount)
wide angle not fantastic (35mm)
slow max aperture (f2.7)
screen is somewhat small (2.7 inch)
no manual exposure
low megapixels (12 megapixels)
small sensor size (1/2.3")
lack of RAW format
does not have Time Lapse recording
54
focusing manually
rather wide (25mm)
fast maximum aperture (f2.0)
nice screen size (3 inches)
built in image stabilization (Sensor-shift)
megapixel count decent (16 megapixels)
weather proof
fixed lens (fixed lens mount)
manual mode not possible
very small sensor (1/2.3")
does not have RAW format
low battery life (240 CIPA)
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Vlogging Comparison

Canon A3100 IS Vlogging information
Pentax WG-3 GPS Vlogging information
25
built in image stabilization (Optical)
wide angle not fantastic (35mm)
slow max aperture (f2.7)
display is not selfie friendly
video res low (640 x 480 pxls)
does not have mic jack
34
rather wide (25mm)
fast maximum aperture (f2.0)
built in image stabilization (Sensor-shift)
supports face detect focusing
good video quality (1920 x 1080 pixels)
does not have a selfie friendly screen
missing mic socket
heavier than average in class (238 grams)
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Canon A3100 IS vs Pentax WG-3 GPS Specifications

Detailed spec comparison table for Canon A3100 IS and Pentax WG-3 GPS
 Canon PowerShot A3100 ISPentax WG-3 GPS
General Information
Manufacturer Canon Pentax
Model Canon PowerShot A3100 IS Pentax WG-3 GPS
Class Small Sensor Compact Waterproof
Introduced 2010-01-05 2013-07-19
Physical type Compact Compact
Sensor Information
Sensor type CCD BSI-CMOS
Sensor size 1/2.3" 1/2.3"
Sensor dimensions 6.17 x 4.55mm 6.17 x 4.55mm
Sensor area 28.1mm² 28.1mm²
Sensor resolution 12 megapixel 16 megapixel
Anti aliasing filter
Aspect ratio 4:3 and 16:9 1:1, 4:3 and 16:9
Max resolution 4000 x 3000 4608 x 3456
Max native ISO 1600 6400
Minimum native ISO 100 125
RAW format
Autofocusing
Manual focus
Touch to focus
Autofocus continuous
Single autofocus
Autofocus tracking
Selective autofocus
Center weighted autofocus
Multi area autofocus
Autofocus live view
Face detection focus
Contract detection focus
Phase detection focus
Number of focus points 9 9
Lens
Lens mount fixed lens fixed lens
Lens focal range 35-140mm (4.0x) 25-100mm (4.0x)
Maximum aperture f/2.7-5.6 f/2.0-4.9
Macro focus range 3cm 1cm
Crop factor 5.8 5.8
Screen
Screen type Fixed Type Fixed Type
Screen size 2.7 inches 3 inches
Resolution of screen 230k dots 460k dots
Selfie friendly
Liveview
Touch operation
Screen technology - Widescreen TFT color LCD with anti-reflective coating
Viewfinder Information
Viewfinder type None None
Features
Minimum shutter speed 15 seconds 4 seconds
Fastest shutter speed 1/1600 seconds 1/4000 seconds
Continuous shutter rate 1.0fps -
Shutter priority
Aperture priority
Manual mode
Change white balance
Image stabilization
Inbuilt flash
Flash range 3.00 m 3.40 m
Flash settings Auto, On, Off, Red-Eye, Fill-in, Slow Sync Auto, On, Off, Red-eye, Soft
External flash
AEB
White balance bracketing
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Supported video resolutions 640 x 480 (30 fps), 320 x 240 (30 fps) 1920 x 1080 (30 fps), 1280 x 720 (60, 30 fps)
Max video resolution 640x480 1920x1080
Video format Motion JPEG MPEG-4, H.264
Mic port
Headphone port
Connectivity
Wireless None Eye-Fi Connected
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS None BuiltIn
Physical
Environment sealing
Water proof
Dust proof
Shock proof
Crush proof
Freeze proof
Weight 165g (0.36 lbs) 238g (0.52 lbs)
Dimensions 97 x 58 x 28mm (3.8" x 2.3" x 1.1") 125 x 64 x 33mm (4.9" x 2.5" x 1.3")
DXO scores
DXO Overall score not tested not tested
DXO Color Depth score not tested not tested
DXO Dynamic range score not tested not tested
DXO Low light score not tested not tested
Other
Battery life - 240 photos
Battery type - Battery Pack
Battery model NB-8L D-LI92
Self timer Yes (2, 10, Custom, Face) Yes (2 or 10 sec)
Time lapse feature
Storage type SD/SDHC/SDXC/MMC/MMCplus/HD MMCplus SD/SDHC/SDXC card, Internal
Card slots 1 1
Launch price $159 $350