Pentax WG-3 GPS vs Sony A9

Following is a complete analysis of the Pentax WG-3 GPS versus Sony A9, former is a Waterproof while the latter is a Pro Mirrorless by manufacturers Pentax and Sony. There exists a noticeable gap among the image resolutions of the WG-3 GPS (16MP) and A9 (24MP) and the WG-3 GPS (1/2.3") and A9 (Full frame) provide different sensor sizes.

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The WG-3 GPS was manufactured 4 years prior to the A9 which is a fairly sizable difference as far as camera technology is concerned. Both the cameras feature different body design with the Pentax WG-3 GPS being a Compact camera and the Sony A9 being a SLR-style mirrorless camera.

Before diving right into a step-by-step comparison, here is a concise synopsis of how the WG-3 GPS matches up versus the A9 in relation to portability, imaging, features and an overall score.

Below is a preview of the gallery images for Pentax WG-3 GPS & Sony Alpha A9. The entire galleries are viewable at Pentax WG-3 GPS Gallery & Sony A9 Gallery.

For those who are looking to carry around your camera, you need to think about its weight and measurements. The Pentax WG-3 GPS has outer measurements of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") with a weight of 238 grams (0.52 lbs) whilst the Sony A9 has proportions of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") having a weight of 673 grams (1.48 lbs).

Check the Pentax WG-3 GPS versus Sony A9 in our newest Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will vary dependant on the lens you are using during that time. Below is a front view measurement comparison of the WG-3 GPS versus the A9.

Using dimensions and weight, the portability grade of the WG-3 GPS and A9 is 90 and 65 respectively.

Sometimes, its difficult to visualize the difference in sensor sizes only by going through specs. The picture underneath may offer you a clearer sense of the sensor sizing in the WG-3 GPS and A9.

As you can plainly see, each of these cameras come with different megapixels and different sensor sizes. The WG-3 GPS due to its smaller sensor is going to make getting shallower DOF more difficult and the Sony A9 will provide greater detail due to its extra 8MP. Higher resolution will also make it easier to crop photographs a good deal more aggressively. The more aged WG-3 GPS will be disadvantaged with regard to sensor innovation.