Pentax WG-3 vs Sony A6100

The following is a extended comparison of the Pentax WG-3 and Sony A6100, one is a Waterproof and the other is a Advanced Mirrorless by brands Pentax and Sony. There is a sizeable difference among the resolutions of the WG-3 (16MP) and A6100 (24MP) and the WG-3 (1/2.3") and A6100 (APS-C) have totally different sensor sizes.

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The WG-3 was brought out 7 years prior to the A6100 which is a fairly large gap as far as camera tech is concerned. Each of these cameras have different body design with the Pentax WG-3 being a Compact camera and the Sony A6100 being a Rangefinder-style mirrorless camera.

Before going right into a step-by-step comparison, here is a quick overview of how the WG-3 scores vs the A6100 in relation to portability, imaging, features and an overall mark.

This is a sample of the gallery pics for Pentax WG-3 and Sony Alpha a6100. The entire galleries are available at Pentax WG-3 Gallery and Sony A6100 Gallery.

For anyone who is going to travel with your camera often, you will need to factor in its weight and volume. The Pentax WG-3 enjoys outside dimensions of 124mm x 64mm x 33mm (4.9" x 2.5" x 1.3") accompanied by a weight of 230 grams (0.51 lbs) while the Sony A6100 has sizing of 120mm x 67mm x 59mm (4.7" x 2.6" x 2.3") accompanied by a weight of 396 grams (0.87 lbs).

Take a look at the Pentax WG-3 and Sony A6100 in the all new Camera and Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you are using during that time. Below is a front view over all size comparison of the WG-3 versus the A6100.

Factoring in size and weight, the portability rating of the WG-3 and A6100 is 90 and 81 respectively.

Usually, it is tough to visualise the difference in sensor dimensions simply by researching specifications. The pic below may give you a greater sense of the sensor sizes in the WG-3 and A6100.

To sum up, both the cameras have different megapixels and different sensor dimensions. The WG-3 due to its smaller sensor will make shooting shallower DOF trickier and the Sony A6100 will provide you with greater detail having its extra 8 Megapixels. Greater resolution will make it easier to crop images a bit more aggressively. The more aged WG-3 will be disadvantaged when it comes to sensor innovation.