Sony A7 III vs Sony A7 IV

Its time to take a closer look at the Sony A7 III and Sony A7 IV, both Pro Mirrorless cameras and they are both designed by Sony. There exists a large gap among the image resolutions of the A7 III (24MP) and A7 IV (33MP) but both cameras offer the identical sensor size (Full frame).

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The A7 III was unveiled 4 years prior to the A7 IV and that is a fairly serious difference as far as camera technology is concerned. Both cameras feature the same body design (SLR-style mirrorless).

Before we go into a step-by-step comparison, here is a quick synopsis of how the A7 III grades versus the A7 IV with regard to portability, imaging, features and an overall grade.

This is a preview of the gallery images for Sony Alpha A7 III & Sony Alpha A7 IV. The full galleries are viewable at Sony A7 III Gallery & Sony A7 IV Gallery.

When you are going to lug around your camera often, you will want to factor its weight and volume. The Sony A7 III has got external measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") accompanied by a weight of 650 grams (1.43 lbs) while the Sony A7 IV has sizing of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") accompanied by a weight of 699 grams (1.54 lbs).

See the Sony A7 III and Sony A7 IV in our brand new Camera & Lens Size Comparison Tool.

Take into account, the weight of an ILC will differ based on the lens you choose at that moment. Below is a front view sizing comparison of the A7 III versus the A7 IV.

Using dimensions and weight, the portability score of the A7 III and A7 IV is 63 and 61 respectively.

More often than not, it is hard to visualise the gap in sensor measurements only by viewing specifications. The graphic below will help offer you a far better sense of the sensor measurements in the A7 III and A7 IV.

Plainly, both of those cameras come with the identical sensor size albeit not the same resolution. You can expect the Sony A7 IV to result in extra detail having an extra 9 Megapixels. Higher resolution will allow you to crop shots a good deal more aggressively. The older A7 III will be disadvantaged with regard to sensor innovation.