Pentax WG-3 GPS vs Sony A57

Its time to look a bit more in depth at the Pentax WG-3 GPS vs Sony A57, one being a Waterproof and the latter is a Entry-Level DSLR by manufacturers Pentax and Sony. The image resolution of the WG-3 GPS (16MP) and the A57 (16MP) is relatively comparable but the WG-3 GPS (1/2.3") and A57 (APS-C) have different sensor dimensions.

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The WG-3 GPS was revealed 11 months later than the A57 so they are both of a similar generation. Both cameras feature different body design with the Pentax WG-3 GPS being a Compact camera and the Sony A57 being a Compact SLR camera.

Before we go straight to a comprehensive comparison, here is a brief summary of how the WG-3 GPS matches up against the A57 with regards to portability, imaging, features and an overall grade.

The following is a preview of the gallery photos for Pentax WG-3 GPS and Sony SLT-A57. The full galleries are provided at Pentax WG-3 GPS Gallery and Sony A57 Gallery.

If you are looking to lug around your camera regularly, you need to factor in its weight and proportions. The Pentax WG-3 GPS has got physical 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 A57 has measurements of 132mm x 98mm x 81mm (5.2" x 3.9" x 3.2") accompanied by a weight of 618 grams (1.36 lbs).

Check out the Pentax WG-3 GPS vs Sony A57 in the latest Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will change depending on the lens you choose at that time. The following is a front view physical size comparison of the WG-3 GPS compared to the A57.

Considering size and weight, the portability score of the WG-3 GPS and A57 is 90 and 64 respectively.

Oftentimes, it's tough to imagine the contrast in sensor measurements just by going through technical specs. The graphic underneath will help give you a clearer sense of the sensor sizing in the WG-3 GPS and A57.

As you can tell, both cameras feature the identical resolution albeit different sensor measurements. The WG-3 GPS comes with the smaller sensor which should make obtaining shallow depth of field harder. The fresher WG-3 GPS should have a benefit in sensor innovation.