Ricoh WG-20 vs Sony A7R III

On this page, we will be reviewing the Ricoh WG-20 vs Sony A7R III, one being a Waterproof and the latter is a Pro Mirrorless by competitors Ricoh and Sony. There is a crucial difference between the resolutions of the WG-20 (14MP) and A7R III (42MP) and the WG-20 (1/2.3") and A7R III (Full frame) boast totally different sensor sizing.

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The WG-20 was unveiled 4 years earlier than the A7R III and that is quite a serious gap as far as tech is concerned. Both of the cameras have different body design with the Ricoh WG-20 being a Compact camera and the Sony A7R III being a SLR-style mirrorless camera.

Before diving straight to a in depth comparison, here is a brief view of how the WG-20 matches up against the A7R III in relation to portability, imaging, features and an overall grade.

The following is a preview of the gallery images for Ricoh WG-20 and Sony Alpha A7R III. The full galleries are viewable at Ricoh WG-20 Gallery and Sony A7R III Gallery.

If you are intending to lug around your camera regularly, you're going to have to factor in its weight and proportions. The Ricoh WG-20 has got outside measurements of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") with a weight of 164 grams (0.36 lbs) and the Sony A7R III has measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 657 grams (1.45 lbs).

Compare the Ricoh WG-20 vs Sony A7R III in the all new Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will differ based on the lens you have during that time. Below is a front view sizing comparison of the WG-20 against the A7R III.

Considering size and weight, the portability rating of the WG-20 and A7R III is 93 and 63 respectively.

Usually, its difficult to visualise the difference between sensor measurements simply by checking technical specs. The photograph here will help provide you a far better sense of the sensor sizing in the WG-20 and A7R III.

As you can tell, each of the cameras have different resolutions and different sensor measurements. The WG-20 having a tinier sensor will make achieving shallower depth of field harder and the Sony A7R III will resolve extra detail having an extra 28MP. Higher resolution can also allow you to crop photographs a bit more aggressively. The older WG-20 is going to be disadvantaged when it comes to sensor innovation.