Pentax WG-3 GPS vs Sigma DP2x

On this page, we are looking at the Pentax WG-3 GPS vs Sigma DP2x, one is a Waterproof and the other is a Large Sensor Compact by companies Pentax and Sigma. There exists a significant gap between the resolutions of the WG-3 GPS (16MP) and DP2x (5MP) and the WG-3 GPS (1/2.3") and DP2x (APS-C) provide totally different sensor measurements.

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The WG-3 GPS was announced 2 years after the DP2x which is quite a sizable gap as far as technology is concerned. Each of these cameras have different body design with the Pentax WG-3 GPS being a Compact camera and the Sigma DP2x being a Large Sensor Compact camera.

Before getting into a more detailed comparison, here is a short introduction of how the WG-3 GPS grades vs the DP2x with regard to portability, imaging, features and an overall score.

Below is a sample of the gallery pictures for Pentax WG-3 GPS and Sigma DP2x. The whole galleries are viewable at Pentax WG-3 GPS Gallery and Sigma DP2x Gallery.

For those who are planning to carry around your camera frequently, you will want to consider its weight and proportions. The Pentax WG-3 GPS features outer dimensions of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") and a weight of 238 grams (0.52 lbs) while the Sigma DP2x has measurements of 113mm x 60mm x 56mm (4.4" x 2.4" x 2.2") with a weight of 280 grams (0.62 lbs).

Compare the Pentax WG-3 GPS vs Sigma DP2x in the new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will differ depending on the lens you choose at that moment. Underneath is a front view measurements comparison of the WG-3 GPS compared to the DP2x.

Factoring in dimensions and weight, the portability score of the WG-3 GPS and DP2x is 90 and 86 respectively.

Normally, its hard to see the gap between sensor sizes just by reviewing a spec sheet. The picture below may offer you a clearer sense of the sensor sizes in the WG-3 GPS and DP2x.

Clearly, both of the cameras provide different megapixel count and different sensor sizes. The WG-3 GPS using its tinier sensor will make shooting shallower DOF more difficult and the Pentax WG-3 GPS will deliver more detail with its extra 11 Megapixels. Greater resolution will also let you crop images more aggressively. The younger WG-3 GPS is going to have an edge when it comes to sensor innovation.