Pentax WG-2 vs Sony A7R III

Below is a comprehensive overview of the Pentax WG-2 vs Sony A7R III, former being a Waterproof while the latter is a Pro Mirrorless by manufacturers Pentax and Sony. There is a noticeable difference between the resolutions of the WG-2 (16MP) and A7R III (42MP) and the WG-2 (1/2.3") and A7R III (Full frame) enjoy different sensor dimensions.

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The WG-2 was unveiled 6 years prior to the A7R III and that is quite a sizable difference as far as tech is concerned. Both the cameras offer different body type with the Pentax WG-2 being a Compact camera and the Sony A7R III being a SLR-style mirrorless camera.

Before delving in to a step-by-step comparison, below is a simple introduction of how the WG-2 scores vs the A7R III in the way of portability, imaging, features and an overall grade.

The following is a preview of the gallery photos for Pentax Optio WG-2 & Sony Alpha A7R III. The full galleries are provided at Pentax WG-2 Gallery & Sony A7R III Gallery.

If you are aiming to lug around your camera, you need to factor its weight and measurements. The Pentax WG-2 offers outside measurements of 122mm x 61mm x 30mm (4.8" x 2.4" x 1.2") accompanied by a weight of 192 grams (0.42 lbs) and the Sony A7R III has proportions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") with a weight of 657 grams (1.45 lbs).

Examine the Pentax WG-2 vs Sony A7R III in our brand new Camera plus Lens Size Comparison Tool.

Don't forget, the weight of an ILC will differ based on the lens you have attached at that moment. Underneath is the front view measurements comparison of the WG-2 and the A7R III.

Taking into consideration size and weight, the portability rating of the WG-2 and A7R III is 91 and 63 respectively.

Oftentimes, it's difficult to picture the gap between sensor measurements only by reading specifications. The graphic below will help provide you a much better sense of the sensor measurements in the WG-2 and A7R III.

To sum up, both the cameras offer different megapixels and different sensor measurements. The WG-2 with its tinier sensor is going to make getting bokeh tougher and the Sony A7R III will offer greater detail having an extra 26 Megapixels. Higher resolution can also allow you to crop shots a little more aggressively. The older WG-2 is going to be behind when it comes to sensor innovation.