Ricoh GR Digital IV vs Sony A7R III

Lets look a bit more closely at the Ricoh GR Digital IV vs Sony A7R III, one being a Small Sensor Compact and the latter is a Pro Mirrorless by competitors Ricoh and Sony. There is a huge difference between the image resolutions of the GR Digital IV (10MP) and A7R III (42MP) and the GR Digital IV (1/1.7") and A7R III (Full frame) posses totally different sensor sizing.

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The GR Digital IV was unveiled 7 years earlier than the A7R III and that is quite a significant gap as far as tech is concerned. Both the cameras feature different body design with the Ricoh GR Digital IV being a Compact camera and the Sony A7R III being a SLR-style mirrorless camera.

Before getting right into a complete comparison, here is a simple summation of how the GR Digital IV grades versus the A7R III with regards to portability, imaging, features and an overall rating.

The following is a preview of the gallery photos for Ricoh GR Digital IV and Sony Alpha A7R III. The full galleries are available at Ricoh GR Digital IV Gallery and Sony A7R III Gallery.

When you are looking to carry your camera regularly, you will need to factor in its weight and proportions. The Ricoh GR Digital IV features external measurements of 109mm x 59mm x 33mm (4.3" x 2.3" x 1.3") having a weight of 190 grams (0.42 lbs) whilst the Sony A7R III has measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") accompanied by a weight of 657 grams (1.45 lbs).

Contrast the Ricoh GR Digital IV vs Sony A7R III in the latest Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will vary depending on the lens you are employing at that time. The following is a front view over all size comparison of the GR Digital IV against the A7R III.

Looking at size and weight, the portability rating of the GR Digital IV and A7R III is 92 and 63 respectively.

Usually, it is very tough to visualise the gap between sensor sizing just by reading through technical specs. The graphic below may offer you a much better sense of the sensor measurements in the GR Digital IV and A7R III.

As you can tell, both the cameras come with different resolutions and different sensor sizing. The GR Digital IV having a tinier sensor will make shooting shallower depth of field tougher and the Sony A7R III will give you greater detail having an extra 32 Megapixels. Higher resolution can also allow you to crop photographs a good deal more aggressively. The older GR Digital IV is going to be disadvantaged in sensor tech.