Ricoh WG-4 vs Sony A7R III

Here is a complete analysis of the Ricoh WG-4 and Sony A7R III, former being a Waterproof while the latter is a Pro Mirrorless by competitors Ricoh and Sony. There is a substantial difference among the resolutions of the WG-4 (16MP) and A7R III (42MP) and the WG-4 (1/2.3") and A7R III (Full frame) come with different sensor sizing.

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The WG-4 was revealed 4 years earlier than the A7R III and that is a fairly big difference as far as camera tech is concerned. Both the cameras offer different body type with the Ricoh WG-4 being a Compact camera and the Sony A7R III being a SLR-style mirrorless camera.

Before we go straight into a complete comparison, below is a simple summary of how the WG-4 grades vs the A7R III in terms of portability, imaging, features and an overall rating.

This is a preview of the gallery photos for Ricoh WG-4 & Sony Alpha A7R III. The full galleries are provided at Ricoh WG-4 Gallery & Sony A7R III Gallery.

If you're aiming to carry your camera frequently, you'll have to factor its weight and measurements. The Ricoh WG-4 has got external dimensions of 124mm x 64mm x 33mm (4.9" x 2.5" x 1.3") having a weight of 230 grams (0.51 lbs) while 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).

Look at the Ricoh WG-4 and Sony A7R III in our completely new Camera & Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will change based on the lens you are using at that time. The following is the front view over all size comparison of the WG-4 compared to the A7R III.

Factoring in size and weight, the portability score of the WG-4 and A7R III is 90 and 63 respectively.

In many cases, it can be difficult to picture the contrast in sensor sizing only by going through technical specs. The photograph below should give you a stronger sense of the sensor sizes in the WG-4 and A7R III.

As you have seen, each of these cameras enjoy different megapixels and different sensor sizing. The WG-4 using its smaller sensor is going to make achieving shallow DOF more difficult and the Sony A7R III will produce extra detail because of its extra 26 Megapixels. Higher resolution can also make it easier to crop pictures far more aggressively. The older WG-4 will be disadvantaged with regard to sensor technology.