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Pentax WG-3 GPS vs Sony A7R

Portability
90
Imaging
40
Features
43
Overall
41
Pentax WG-3 GPS front
 
Sony Alpha A7R front
Portability
78
Imaging
74
Features
76
Overall
74

Pentax WG-3 GPS vs Sony A7R Key Specs

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
  • Introduced July 2013
Sony A7R
(Full Review)
  • 36MP - Full frame Sensor
  • 3" Tilting Screen
  • ISO 100 - 25600
  • No Anti-Alias Filter
  • 1/8000s Max Shutter
  • 1920 x 1080 video
  • Sony E Mount
  • 465g - 127 x 94 x 48mm
  • Released February 2014
  • Successor is Sony A7R II
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Pentax WG-3 GPS vs Sony A7R Overview

Below, we will be comparing the Pentax WG-3 GPS and Sony A7R, one being a Waterproof and the latter is a Pro Mirrorless by rivals Pentax and Sony. There exists a crucial gap between the image resolutions of the WG-3 GPS (16MP) and A7R (36MP) and the WG-3 GPS (1/2.3") and A7R (Full frame) enjoy different sensor measurements.

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The WG-3 GPS was introduced 6 months prior to the A7R and they are both of a similar generation. Both cameras come with different body type with the Pentax WG-3 GPS being a Compact camera and the Sony A7R being a SLR-style mirrorless camera.

Before getting in to a complete comparison, below is a brief overview of how the WG-3 GPS matches up against the A7R in the way of portability, imaging, features and an overall rating.

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Reasons to pick Pentax WG-3 GPS over the Sony A7R

 WG-3 GPS A7R 

Reasons to pick Sony A7R over the Pentax WG-3 GPS

 A7R WG-3 GPS 
Screen typeTiltingFixed Tilting screen
Screen resolution1230k460kClearer screen (+770k dot)

Common features in the Pentax WG-3 GPS and Sony A7R

 WG-3 GPS A7R 
ReleasedJuly 2013February 2014Similar generation
Manually focus More precise focus
Screen dimension3"3"Identical screen measurements
Selfie screen Neither has selfie screen
Touch friendly screen Neither has Touch friendly screen

Pentax WG-3 GPS vs Sony A7R Physical Comparison

In case you're looking to carry your camera frequently, you will want to think about its weight and dimensions. The Pentax WG-3 GPS has outer dimensions of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") along with a weight of 238 grams (0.52 lbs) whilst the Sony A7R has dimensions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") along with a weight of 465 grams (1.03 lbs).

Analyze the Pentax WG-3 GPS and Sony A7R in the latest Camera and Lens Size Comparison Tool. Camera Size Comparison with Lenses

Don't forget, the weight of an Interchangeable Lens Camera will vary dependant on the lens you choose at that moment. Here is the front view overall size comparison of the WG-3 GPS against the A7R.

Pentax WG-3 GPS vs Sony A7R size comparison

Taking into consideration dimensions and weight, the portability score of the WG-3 GPS and A7R is 90 and 78 respectively.

Pentax WG-3 GPS vs Sony A7R top view buttons comparison

Pentax WG-3 GPS vs Sony A7R Sensor Comparison

Normally, it can be hard to visualize the gap between sensor sizing just by going over specs. The photograph here will give you a much better sense of the sensor sizes in the WG-3 GPS and A7R.

As you can plainly see, each of these cameras posses different megapixel count and different sensor sizing. The WG-3 GPS with its tinier sensor is going to make getting shallow DOF harder and the Sony A7R will deliver extra detail using its extra 20MP. Higher resolution will also let you crop photographs somewhat more aggressively.

Pentax WG-3 GPS vs Sony A7R sensor size comparison

Pentax WG-3 GPS vs Sony A7R Screen and ViewFinder

Pentax WG-3 GPS vs Sony A7R Screen and Viewfinder comparison
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Photography Type Scores

Portrait Comparison

Pentax WG-3 GPS as a Portrait photography camera
Sony A7R as a Portrait photography camera
41
has manual focus
resolution is good (16 megapixels)
has face detect focusing
manual mode not available
no external flash support
sensor is small (1/2.3")
has no RAW files
84
has manual focus
megapixel count fantastic (36 megapixels)
great sensor size (Full frame)
supports face detect focus
saves RAW formats
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Street Comparison

Street photography with Pentax WG-3 GPS
Street photography with Sony A7R
59
has image stabilization (Sensor-shift)
environment proof
no moving screen
sensor is small (1/2.3")
has no RAW files
heavier than average in class (238 grams)
80
tilting screen
great sensor size (Full frame)
saves RAW formats
weather sealing
lighter than competition in class (465 grams)
above average ISO range (25,600)
no image stabilization
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Sports Comparison

Pentax WG-3 GPS Sports photography highlights
Sony A7R Sports photography highlights
45
has image stabilization (Sensor-shift)
resolution is good (16MP)
has tracking focus
environment proof
no shutter priority
sensor is small (1/2.3")
not so great battery (240 shots)
has no phase detect AF
62
high shutter speed (1/8,000 seconds)
megapixel count fantastic (36MP)
great sensor size (Full frame)
weather sealing
max fps low (4.0 frames/s)
no image stabilization
terrible battery (340 CIPA)
no phase detect auto focus
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Travel Comparison

Pentax WG-3 GPS Travel photography advice
Sony A7R Travel photography advice
69
environment proof
resolution is good (16MP)
has built in flash
quite wide (25mm)
fast maximum aperture (f2.0)
not so great battery (240 shots)
heavier than average in class (238 grams)
doesn't offer selfie friendly display
70
lighter than competition in class (465 grams)
weather sealing
megapixel count fantastic (36MP)
terrible battery (340 shots)
doesn't posses selfie friendly screen
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Landscape Comparison

Landscape photography with Pentax WG-3 GPS
Landscape photography with Sony A7R
54
has manual focus
quite wide (25mm)
fast maximum aperture (f2.0)
pretty good screen size (3 inch)
has image stabilization (Sensor-shift)
resolution is good (16 megapixels)
environment proof
lens is fixed (fixed lens mount)
manual mode not available
sensor is small (1/2.3")
has no RAW files
not so great battery (240 per charge)
78
has manual focus
change lenses (Sony E mount)
nice screen size (3")
megapixel count fantastic (36 megapixels)
great sensor size (Full frame)
no low pass filter
above average ISO range (25,600)
saves RAW formats
weather sealing
no image stabilization
terrible battery (340 shots)
Photography Glossary

Vlogging Comparison

Pentax WG-3 GPS as a Vlogging camera
Sony A7R as a Vlogging camera
34
quite wide (25mm)
fast maximum aperture (f2.0)
has image stabilization (Sensor-shift)
has face detect focusing
high quality video (1920 x 1080 resolution)
doesn't offer selfie friendly display
no mic socket
heavier than average in class (238g)
36
supports face detect focus
video resolution high (1920 x 1080 resolution)
has microphone socket
lighter than competition in class (465g)
doesn't posses selfie friendly screen
no image stabilization
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Pentax WG-3 GPS vs Sony A7R Specifications

Detailed spec comparison table for Pentax WG-3 GPS and Sony A7R
 Pentax WG-3 GPSSony Alpha A7R
General Information
Brand Pentax Sony
Model type Pentax WG-3 GPS Sony Alpha A7R
Type Waterproof Pro Mirrorless
Introduced 2013-07-19 2014-02-13
Physical type Compact SLR-style mirrorless
Sensor Information
Processor Chip - Bionz X
Sensor type BSI-CMOS CMOS
Sensor size 1/2.3" Full frame
Sensor measurements 6.17 x 4.55mm 35.9 x 24mm
Sensor surface area 28.1mm² 861.6mm²
Sensor resolution 16 megapixel 36 megapixel
Anti alias filter
Aspect ratio 1:1, 4:3 and 16:9 3:2 and 16:9
Full resolution 4608 x 3456 7360 x 4912
Max native ISO 6400 25600
Minimum native ISO 125 100
RAW pictures
Autofocusing
Focus manually
Touch to focus
Autofocus continuous
Autofocus single
Tracking autofocus
Selective autofocus
Center weighted autofocus
Multi area autofocus
Autofocus live view
Face detection focus
Contract detection focus
Phase detection focus
Total focus points 9 25
Lens
Lens support fixed lens Sony E
Lens zoom range 25-100mm (4.0x) -
Maximum aperture f/2.0-4.9 -
Macro focusing distance 1cm -
Total lenses - 121
Crop factor 5.8 1
Screen
Screen type Fixed Type Tilting
Screen diagonal 3 inch 3 inch
Screen resolution 460 thousand dots 1,230 thousand dots
Selfie friendly
Liveview
Touch operation
Screen tech Widescreen TFT color LCD with anti-reflective coating Xtra Fine LCD
Viewfinder Information
Viewfinder type None Electronic
Viewfinder resolution - 2,359 thousand dots
Viewfinder coverage - 100%
Viewfinder magnification - 0.71x
Features
Slowest shutter speed 4 secs 30 secs
Maximum shutter speed 1/4000 secs 1/8000 secs
Continuous shooting rate - 4.0fps
Shutter priority
Aperture priority
Manually set exposure
Exposure compensation - Yes
Custom white balance
Image stabilization
Inbuilt flash
Flash distance 3.40 m no built-in flash
Flash settings Auto, On, Off, Red-eye, Soft no built-in flash
External flash
AE bracketing
White balance bracketing
Maximum flash synchronize - 1/160 secs
Exposure
Multisegment metering
Average metering
Spot metering
Partial metering
AF area metering
Center weighted metering
Video features
Video resolutions 1920 x 1080 (30 fps), 1280 x 720 (60, 30 fps) 1920 x 1080 (60p, 60i, 24p), 1440 x 1080 (30p), 640 x 480 (30p)
Max video resolution 1920x1080 1920x1080
Video data format MPEG-4, H.264 MPEG-4, AVCHD
Microphone port
Headphone port
Connectivity
Wireless Eye-Fi Connected Built-In
Bluetooth
NFC
HDMI
USB USB 2.0 (480 Mbit/sec) USB 2.0 (480 Mbit/sec)
GPS BuiltIn None
Physical
Environment sealing
Water proofing
Dust proofing
Shock proofing
Crush proofing
Freeze proofing
Weight 238 gr (0.52 lb) 465 gr (1.03 lb)
Dimensions 125 x 64 x 33mm (4.9" x 2.5" x 1.3") 127 x 94 x 48mm (5.0" x 3.7" x 1.9")
DXO scores
DXO All around rating not tested 95
DXO Color Depth rating not tested 25.6
DXO Dynamic range rating not tested 14.1
DXO Low light rating not tested 2746
Other
Battery life 240 pictures 340 pictures
Type of battery Battery Pack Battery Pack
Battery ID D-LI92 NP-FW50
Self timer Yes (2 or 10 sec) Yes (2 or 10 sec; continuous (3 or 5 exposures))
Time lapse feature With downloadable app
Type of storage SD/SDHC/SDXC card, Internal SD/SDHC/SDXC, Memory Stick Duo/Pro Duo/Pro-HG Duo
Card slots One One
Price at launch $350 $1,898