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Pentax WG-3 GPS vs Samsung GX-20

Portability
90
Imaging
40
Features
43
Overall
41
Pentax WG-3 GPS front
 
Samsung GX-20 front
Portability
58
Imaging
53
Features
52
Overall
52

Pentax WG-3 GPS vs Samsung GX-20 Key Specs

Pentax WG-3 GPS
(Full Review)
  • 16MP - 1/2.3" Sensor
  • 3" Fixed Display
  • ISO 125 - 6400
  • Sensor-shift Image Stabilization
  • 1920 x 1080 video
  • 25-100mm (F2.0-4.9) lens
  • 238g - 125 x 64 x 33mm
  • Released July 2013
Samsung GX-20
(Full Review)
  • 15MP - APS-C Sensor
  • 2.7" Fixed Screen
  • ISO 100 - 3200 (Raise to 6400)
  • Sensor based Image Stabilization
  • No Video
  • Pentax KAF2 Mount
  • 800g - 142 x 101 x 72mm
  • Introduced January 2008
  • Replaced the Samsung GX-10
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Pentax WG-3 GPS vs Samsung GX-20 Overview

Lets take a deeper look at the Pentax WG-3 GPS versus Samsung GX-20, former is a Waterproof while the latter is a Advanced DSLR by manufacturers Pentax and Samsung. The image resolution of the WG-3 GPS (16MP) and the GX-20 (15MP) is relatively well matched but the WG-3 GPS (1/2.3") and GX-20 (APS-C) feature totally different sensor measurements.

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The WG-3 GPS was manufactured 5 years after the GX-20 which is quite a significant difference as far as tech is concerned. Each of these cameras come with different body type with the Pentax WG-3 GPS being a Compact camera and the Samsung GX-20 being a Mid-size SLR camera.

Before we go in to a step-by-step comparison, below is a simple summary of how the WG-3 GPS grades vs the GX-20 in regards to portability, imaging, features and an overall score.

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Reasons to pick Pentax WG-3 GPS over the Samsung GX-20

 WG-3 GPS GX-20 
IntroducedJuly 2013January 2008More modern by 67 months
Screen dimension3"2.7"Bigger screen (+0.3")
Screen resolution460k230kCrisper screen (+230k dot)

Reasons to pick Samsung GX-20 over the Pentax WG-3 GPS

 GX-20 WG-3 GPS 

Common features in the Pentax WG-3 GPS and Samsung GX-20

 WG-3 GPS GX-20 
Focus manually Very exact focusing
Screen typeFixed Fixed Fixed screen
Selfie screen Neither includes selfie screen
Touch screen Lack of Touch screen

Pentax WG-3 GPS vs Samsung GX-20 Physical Comparison

When you are looking to carry around your camera frequently, you will want to factor its weight and measurements. The Pentax WG-3 GPS features external measurements of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") having a weight of 238 grams (0.52 lbs) whilst the Samsung GX-20 has proportions of 142mm x 101mm x 72mm (5.6" x 4.0" x 2.8") and a weight of 800 grams (1.76 lbs).

Compare the Pentax WG-3 GPS versus Samsung GX-20 in our newest Camera plus Lens Size Comparison Tool. Camera Size Comparison with Lenses

Always remember, the weight of an ILC will differ dependant on the lens you are working with during that time. Below is the front view dimensions comparison of the WG-3 GPS against the GX-20.

Pentax WG-3 GPS vs Samsung GX-20 size comparison

Taking into consideration size and weight, the portability score of the WG-3 GPS and GX-20 is 90 and 58 respectively.

Pentax WG-3 GPS vs Samsung GX-20 top view buttons comparison

Pentax WG-3 GPS vs Samsung GX-20 Sensor Comparison

Generally, it can be difficult to see the gap between sensor sizes merely by looking at specifications. The pic below should offer you a clearer sense of the sensor measurements in the WG-3 GPS and GX-20.

Plainly, both of these cameras posses different megapixels and different sensor sizes. The WG-3 GPS due to its tinier sensor will make getting shallow depth of field more challenging and the Pentax WG-3 GPS will give more detail due to its extra 1 Megapixels. Higher resolution will also let you crop shots somewhat more aggressively. The more modern WG-3 GPS will have an advantage in sensor tech.

Pentax WG-3 GPS vs Samsung GX-20 sensor size comparison

Pentax WG-3 GPS vs Samsung GX-20 Screen and ViewFinder

Pentax WG-3 GPS vs Samsung GX-20 Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax WG-3 GPS Portrait photography factors
Samsung GX-20 Portrait photography factors
41
has manual focus
sensor resolution is decent (16 megapixels)
includes face detect autofocus
no manual control
external flash not possible
very small sensor size (1/2.3")
has no RAW support
71
focusing manually
good resolution (15 megapixels)
good sensor size (APS-C)
supports RAW formats
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Street Comparison

Street photography with Pentax WG-3 GPS
Street photography with Samsung GX-20
59
image stabilization (Sensor-shift)
weather proofing
no moving screen
very small sensor size (1/2.3")
has no RAW support
heavier than competition (238g)
65
has image stabilization (Sensor based)
good sensor size (APS-C)
supports RAW formats
weather proof
no moving screen
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Sports Comparison

Pentax WG-3 GPS Sports photography features
Samsung GX-20 Sports photography features
45
image stabilization (Sensor-shift)
sensor resolution is decent (16 megapixels)
includes tracking focus
weather proofing
lack of shutter priority mode
very small sensor size (1/2.3")
not so great battery (240 CIPA)
has no phase detect autofocus
68
has image stabilization (Sensor based)
good resolution (15MP)
good sensor size (APS-C)
weather proof
comes with phase detect AF
max fps very slow (3.0 frames/s)
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Travel Comparison

Pentax WG-3 GPS Travel photography details
Samsung GX-20 Travel photography details
69
weather proofing
sensor resolution is decent (16MP)
has built in flash
rather wide (25mm)
good max aperture (f2.0)
not so great battery (240 shots)
heavier than competition (238g)
screen isn't selfie friendly
63
weather proof
good resolution (15MP)
has built in flash
does not contain selfie friendly display
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Landscape Comparison

Pentax WG-3 GPS Landscape photography advice
Samsung GX-20 Landscape photography advice
54
has manual focus
rather wide (25mm)
good max aperture (f2.0)
pretty good screen size (3")
image stabilization (Sensor-shift)
sensor resolution is decent (16 megapixels)
weather proofing
lens is fixed (fixed lens mount)
no manual control
very small sensor size (1/2.3")
has no RAW support
not so great battery (240 per charge)
70
focusing manually
interchangeable lenses (Pentax KAF2 mount)
has image stabilization (Sensor based)
good resolution (15 megapixels)
good sensor size (APS-C)
supports RAW formats
weather proof
tiny screen (2.7 inch)
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Vlogging Comparison

Pentax WG-3 GPS Vlogging information
Samsung GX-20 Vlogging information
34
rather wide (25mm)
good max aperture (f2.0)
image stabilization (Sensor-shift)
includes face detect autofocus
great video quality (1920 x 1080 pxls)
screen isn't selfie friendly
missing mic jack
heavier than competition (238g)
9
no video recording
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Pentax WG-3 GPS vs Samsung GX-20 Specifications

Detailed spec comparison table for Pentax WG-3 GPS and Samsung GX-20
 Pentax WG-3 GPSSamsung GX-20
General Information
Brand Name Pentax Samsung
Model type Pentax WG-3 GPS Samsung GX-20
Type Waterproof Advanced DSLR
Released 2013-07-19 2008-01-24
Body design Compact Mid-size SLR
Sensor Information
Sensor type BSI-CMOS CMOS
Sensor size 1/2.3" APS-C
Sensor dimensions 6.17 x 4.55mm 23.4 x 15.6mm
Sensor surface area 28.1mm² 365.0mm²
Sensor resolution 16 megapixels 15 megapixels
Anti alias filter
Aspect ratio 1:1, 4:3 and 16:9 -
Highest Possible resolution 4608 x 3456 4688 x 3120
Maximum native ISO 6400 3200
Maximum enhanced ISO - 6400
Min native ISO 125 100
RAW images
Autofocusing
Focus manually
Touch to focus
Continuous autofocus
Single autofocus
Autofocus tracking
Selective autofocus
Autofocus center weighted
Autofocus multi area
Autofocus live view
Face detect focus
Contract detect focus
Phase detect focus
Total focus points 9 11
Lens
Lens support fixed lens Pentax KAF2
Lens zoom range 25-100mm (4.0x) -
Maximum aperture f/2.0-4.9 -
Macro focusing range 1cm -
Total lenses - 151
Crop factor 5.8 1.5
Screen
Range of display Fixed Type Fixed Type
Display sizing 3 inches 2.7 inches
Resolution of display 460 thousand dot 230 thousand dot
Selfie friendly
Liveview
Touch functionality
Display technology Widescreen TFT color LCD with anti-reflective coating -
Viewfinder Information
Viewfinder type None Optical (pentaprism)
Viewfinder coverage - 95%
Viewfinder magnification - 0.64x
Features
Min shutter speed 4 seconds 30 seconds
Max shutter speed 1/4000 seconds 1/4000 seconds
Continuous shutter speed - 3.0fps
Shutter priority
Aperture priority
Manual exposure
Exposure compensation - Yes
Change white balance
Image stabilization
Built-in flash
Flash distance 3.40 m 13.00 m (at ISO 100)
Flash modes Auto, On, Off, Red-eye, Soft Auto, Red-Eye, Slow, Red-Eye Slow, Rear curtain, wireless
External flash
Auto exposure bracketing
White balance bracketing
Max flash sync - 1/180 seconds
Exposure
Multisegment exposure
Average exposure
Spot exposure
Partial exposure
AF area exposure
Center weighted exposure
Video features
Video resolutions 1920 x 1080 (30 fps), 1280 x 720 (60, 30 fps) -
Maximum video resolution 1920x1080 None
Video file format MPEG-4, H.264 -
Mic input
Headphone input
Connectivity
Wireless Eye-Fi Connected None
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS BuiltIn None
Physical
Environment seal
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 238 grams (0.52 lbs) 800 grams (1.76 lbs)
Dimensions 125 x 64 x 33mm (4.9" x 2.5" x 1.3") 142 x 101 x 72mm (5.6" x 4.0" x 2.8")
DXO scores
DXO Overall rating not tested 68
DXO Color Depth rating not tested 23.1
DXO Dynamic range rating not tested 11.2
DXO Low light rating not tested 714
Other
Battery life 240 pictures -
Type of battery Battery Pack -
Battery ID D-LI92 -
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec)
Time lapse feature
Type of storage SD/SDHC/SDXC card, Internal SD/MMC/SDHC card
Storage slots One One
Pricing at release $350 $850