Ricoh GR vs Sony A7R III

The following is a detailed comparison of the Ricoh GR vs Sony A7R III, one is a Large Sensor Compact and the other is a Pro Mirrorless by companies Ricoh and Sony. There is a sizeable difference between the resolutions of the GR (16MP) and A7R III (42MP) and the GR (APS-C) and A7R III (Full frame) use different sensor sizes.

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The GR was unveiled 5 years prior to the A7R III which is quite a large gap as far as tech is concerned. Both of these cameras offer different body type with the Ricoh GR being a Large Sensor Compact camera and the Sony A7R III being a SLR-style mirrorless camera.

Before diving in to a thorough comparison, below is a simple view of how the GR grades vs the A7R III with respect to portability, imaging, features and an overall mark.

The following is a sample of the gallery pics for Ricoh GR and Sony Alpha A7R III. The full galleries are viewable at Ricoh GR Gallery and Sony A7R III Gallery.

If you are aiming to travel with your camera regularly, you have to take into account its weight and dimensions. The Ricoh GR provides physical measurements of 117mm x 61mm x 35mm (4.6" x 2.4" x 1.4") and a weight of 245 grams (0.54 lbs) and the Sony A7R III has dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") accompanied by a weight of 657 grams (1.45 lbs).

Examine the Ricoh GR vs Sony A7R III in the all new Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will differ depending on the lens you have during that time. Below is the front view measurements comparison of the GR against the A7R III.

Taking into consideration size and weight, the portability score of the GR and A7R III is 90 and 63 respectively.

Oftentimes, it's difficult to picture the contrast between sensor dimensions merely by looking at technical specs. The pic here may give you a more clear sense of the sensor sizing in the GR and A7R III.

As you have seen, both of the cameras enjoy different megapixel count and different sensor dimensions. The GR having a tinier sensor is going to make shooting shallower DOF tougher and the Sony A7R III will give you greater detail having an extra 26 Megapixels. Greater resolution will also enable you to crop images far more aggressively. The more aged GR is going to be disadvantaged in sensor tech.