Sony A7R III vs Sony A7R IV

In this write-up, we are contrasting the Sony A7R III versus Sony A7R IV, both Pro Mirrorless digital cameras and both of them are sold by Sony. There exists a considerable gap between the image resolutions of the A7R III (42MP) and A7R IV (61MP) but they use the same exact sensor measurements (Full frame).

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The A7R III was revealed 20 months prior to the A7R IV making the cameras a generation apart from one another. Both cameras offer the identical body type (SLR-style mirrorless).

Before we go through a in-depth comparison, below is a concise summation of how the A7R III grades vs the A7R IV when it comes to portability, imaging, features and an overall grade.

The following is a sample of the gallery pictures for Sony Alpha A7R III & Sony Alpha A7R IV. The full galleries are provided at Sony A7R III Gallery & Sony A7R IV Gallery.

For those who are going to lug around your camera often, you're going to have to think about its weight and proportions. The Sony A7R III has external measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") along with a weight of 657 grams (1.45 lbs) and the Sony A7R IV has measurements of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") having a weight of 665 grams (1.47 lbs).

See the Sony A7R III versus Sony A7R IV in our brand new Camera plus Lens Size Comparison Tool.

Always remember, the weight of an ILC will differ dependant on the lens you use at the time. Following is the front view dimension comparison of the A7R III vs the A7R IV.

Using dimensions and weight, the portability score of the A7R III and A7R IV is 63 and 62 respectively.

Quite often, it is very hard to envision the difference between sensor measurements simply by going over technical specs. The visual here will help provide you a better sense of the sensor measurements in the A7R III and A7R IV.

As you can tell, both of the cameras offer the same exact sensor sizing but not the same MP. You can anticipate the Sony A7R IV to deliver more detail because of its extra 19MP. Greater resolution can also enable you to crop pics a little more aggressively. The older A7R III is going to be behind when it comes to sensor tech.