Pentax WG-3 GPS vs Sony A7S III

Here is a extensive assessment of the Pentax WG-3 GPS and Sony A7S III, former being a Waterproof while the other is a Pro Mirrorless by brands Pentax and Sony. There exists a sizable gap between the image resolutions of the WG-3 GPS (16MP) and A7S III (12MP) and the WG-3 GPS (1/2.3") and A7S III (Full frame) possess different sensor size.

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The WG-3 GPS was announced 8 years before the A7S III and that is quite a significant difference as far as technology is concerned. Each of the cameras come with different body type with the Pentax WG-3 GPS being a Compact camera and the Sony A7S III being a SLR-style mirrorless camera.

Before diving through a more detailed comparison, below is a short view of how the WG-3 GPS grades versus the A7S III with regard to portability, imaging, features and an overall rating.

Below is a sample of the gallery pictures for Pentax WG-3 GPS & Sony Alpha A7S III. The whole galleries are viewable at Pentax WG-3 GPS Gallery & Sony A7S III Gallery.

In case you're looking to carry your camera, you have to consider its weight and size. The Pentax WG-3 GPS has got physical dimensions of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") having a weight of 238 grams (0.52 lbs) whilst the Sony A7S III has specifications of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") having a weight of 699 grams (1.54 lbs).

Contrast the Pentax WG-3 GPS and Sony A7S III in our completely new Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will change dependant on the lens you are using at that moment. Underneath is the front view dimensions comparison of the WG-3 GPS vs the A7S III.

Taking into consideration dimensions and weight, the portability grade of the WG-3 GPS and A7S III is 90 and 61 respectively.

Quite often, it is very hard to visualize the contrast between sensor sizing purely by checking specs. The graphic here may provide you a far better sense of the sensor dimensions in the WG-3 GPS and A7S III.

All in all, both the cameras have got different megapixel count and different sensor sizing. The WG-3 GPS having a tinier sensor is going to make achieving bokeh trickier and the Pentax WG-3 GPS will resolve more detail with its extra 4 Megapixels. Greater resolution will allow you to crop pics much more aggressively. The older WG-3 GPS is going to be behind with regard to sensor tech.