Pentax WG-3 GPS vs Sony A550
90 Imaging
40 Features
43 Overall
41


63 Imaging
53 Features
65 Overall
57
Pentax WG-3 GPS vs Sony A550 Key Specs
(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
- Launched July 2013
(Full Review)
- 14MP - APS-C Sensor
- 3" Tilting Display
- ISO 200 - 12800
- Sensor based Image Stabilization
- No Video
- Sony/Minolta Alpha Mount
- 632g - 137 x 104 x 84mm
- Revealed December 2009
- Replaced the Sony A100

Pentax WG-3 GPS vs Sony A550 Overview
Let's look more in depth at the Pentax WG-3 GPS and Sony A550, former being a Waterproof while the other is a Entry-Level DSLR by brands Pentax and Sony. The resolution of the WG-3 GPS (16MP) and the A550 (14MP) is fairly close but the WG-3 GPS (1/2.3") and A550 (APS-C) offer different sensor dimensions.

The WG-3 GPS was manufactured 3 years later than the A550 and that is a fairly serious difference as far as camera technology is concerned. Both cameras feature different body design with the Pentax WG-3 GPS being a Compact camera and the Sony A550 being a Compact SLR camera.
Before going straight to a full comparison, here is a quick introduction of how the WG-3 GPS scores versus the A550 when it comes to portability, imaging, features and an overall grade.

Pentax WG-3 GPS vs Sony A550 Gallery
The following is a sample of the gallery pictures for Pentax WG-3 GPS & Sony Alpha DSLR-A550. The entire galleries are available at Pentax WG-3 GPS Gallery & Sony A550 Gallery.
Reasons to pick Pentax WG-3 GPS over the Sony A550
WG-3 GPS | A550 | |||
---|---|---|---|---|
Revealed | July 2013 | ![]() | December 2009 | More recent by 44 months |
Reasons to pick Sony A550 over the Pentax WG-3 GPS
A550 | WG-3 GPS | |||
---|---|---|---|---|
Display type | Tilting | ![]() | Fixed | Tilting display |
Display resolution | 922k | ![]() | 460k | Sharper display (+462k dot) |
Common features in the Pentax WG-3 GPS and Sony A550
WG-3 GPS | A550 | |||
---|---|---|---|---|
Manually focus | ![]() | Dial exact focusing | ||
Display size | 3" | ![]() | 3" | Same display sizing |
Selfie screen | ![]() | Neither contains selfie screen | ||
Touch display | ![]() | Neither contains Touch display |
Pentax WG-3 GPS vs Sony A550 Physical Comparison
In case you're looking to lug around your camera regularly, you will want to consider its weight and measurements. The Pentax WG-3 GPS has got external measurements of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") with a weight of 238 grams (0.52 lbs) and the Sony A550 has proportions of 137mm x 104mm x 84mm (5.4" x 4.1" x 3.3") accompanied by a weight of 632 grams (1.39 lbs).
Examine the Pentax WG-3 GPS and Sony A550 in our brand new Camera plus Lens Size Comparison Tool.
Remember, the weight of an ILC will differ based on the lens you are utilizing at that moment. Underneath is a front view over all size comparison of the WG-3 GPS versus the A550.

Considering dimensions and weight, the portability rating of the WG-3 GPS and A550 is 90 and 63 respectively.

Pentax WG-3 GPS vs Sony A550 Sensor Comparison
More often than not, it's hard to imagine the difference in sensor measurements simply by researching technical specs. The photograph below should provide you a more clear sense of the sensor sizing in the WG-3 GPS and A550.
As you can tell, both of the cameras come with different megapixel count and different sensor measurements. The WG-3 GPS because of its smaller sensor is going to make getting shallow DOF tougher and the Pentax WG-3 GPS will render greater detail due to its extra 2MP. Greater resolution can also allow you to crop pics a good deal more aggressively. The newer WG-3 GPS provides a benefit when it comes to sensor innovation.

Pentax WG-3 GPS vs Sony A550 Screen and ViewFinder


Photography Type Scores
Portrait Comparison

Street Comparison

Sports Comparison

Travel Comparison

Landscape Comparison

Vlogging Comparison

Pentax WG-3 GPS vs Sony A550 Specifications
Pentax WG-3 GPS | Sony Alpha DSLR-A550 | |
---|---|---|
General Information | ||
Brand Name | Pentax | Sony |
Model type | Pentax WG-3 GPS | Sony Alpha DSLR-A550 |
Type | Waterproof | Entry-Level DSLR |
Launched | 2013-07-19 | 2009-12-09 |
Body design | Compact | Compact SLR |
Sensor Information | ||
Powered by | - | Bionz |
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 megapixel | 14 megapixel |
Anti alias filter | ||
Aspect ratio | 1:1, 4:3 and 16:9 | 3:2 and 16:9 |
Max resolution | 4608 x 3456 | 4592 x 3056 |
Max native ISO | 6400 | 12800 |
Minimum native ISO | 125 | 200 |
RAW data | ||
Autofocusing | ||
Focus manually | ||
Touch to focus | ||
AF continuous | ||
AF single | ||
AF tracking | ||
AF selectice | ||
AF center weighted | ||
Multi area AF | ||
Live view AF | ||
Face detection focusing | ||
Contract detection focusing | ||
Phase detection focusing | ||
Total focus points | 9 | 9 |
Lens | ||
Lens support | fixed lens | Sony/Minolta Alpha |
Lens zoom range | 25-100mm (4.0x) | - |
Maximal aperture | f/2.0-4.9 | - |
Macro focusing range | 1cm | - |
Number of lenses | - | 143 |
Focal length multiplier | 5.8 | 1.5 |
Screen | ||
Screen type | Fixed Type | Tilting |
Screen sizing | 3 inch | 3 inch |
Screen resolution | 460 thousand dot | 922 thousand dot |
Selfie friendly | ||
Liveview | ||
Touch function | ||
Screen technology | Widescreen TFT color LCD with anti-reflective coating | - |
Viewfinder Information | ||
Viewfinder type | None | Optical (pentamirror) |
Viewfinder coverage | - | 95% |
Viewfinder magnification | - | 0.53x |
Features | ||
Min shutter speed | 4s | 30s |
Max shutter speed | 1/4000s | 1/4000s |
Continuous shutter speed | - | 7.0 frames per sec |
Shutter priority | ||
Aperture priority | ||
Manual exposure | ||
Exposure compensation | - | Yes |
Custom WB | ||
Image stabilization | ||
Built-in flash | ||
Flash distance | 3.40 m | 12.00 m |
Flash settings | Auto, On, Off, Red-eye, Soft | Auto, On, Off, Red-Eye, Slow Sync, High Speed Sync, Rear Curtain, Fill-in, Wireless |
External flash | ||
AEB | ||
WB bracketing | ||
Max flash sync | - | 1/160s |
Exposure | ||
Multisegment | ||
Average | ||
Spot | ||
Partial | ||
AF area | ||
Center weighted | ||
Video features | ||
Video resolutions | 1920 x 1080 (30 fps), 1280 x 720 (60, 30 fps) | - |
Max video resolution | 1920x1080 | None |
Video data 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 | ||
Environmental seal | ||
Water proofing | ||
Dust proofing | ||
Shock proofing | ||
Crush proofing | ||
Freeze proofing | ||
Weight | 238 gr (0.52 pounds) | 632 gr (1.39 pounds) |
Physical dimensions | 125 x 64 x 33mm (4.9" x 2.5" x 1.3") | 137 x 104 x 84mm (5.4" x 4.1" x 3.3") |
DXO scores | ||
DXO Overall rating | not tested | 66 |
DXO Color Depth rating | not tested | 21.9 |
DXO Dynamic range rating | not tested | 11.8 |
DXO Low light rating | not tested | 807 |
Other | ||
Battery life | 240 photographs | 480 photographs |
Battery format | Battery Pack | Battery Pack |
Battery ID | D-LI92 | NP-FM500H |
Self timer | Yes (2 or 10 sec) | Yes (2 or 10 sec) |
Time lapse recording | ||
Type of storage | SD/SDHC/SDXC card, Internal | SD/ SDHC, Memory Stick Pro Duo/ Pro-HG Duo |
Storage slots | Single | Single |
Launch cost | $350 | $749 |