Sony A7S III vs Sony RX1R

Here, we are evaluating the Sony A7S III versus Sony RX1R, former being a Pro Mirrorless while the other is a Large Sensor Compact and they are both manufactured by Sony. There exists a noticeable gap between the resolutions of the A7S III (12MP) and RX1R (24MP) but both cameras boast the identical sensor dimensions (Full frame).

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The A7S III was unveiled 7 years later than the RX1R and that is quite a sizable difference as far as technology is concerned. Both cameras feature different body design with the Sony A7S III being a SLR-style mirrorless camera and the Sony RX1R being a Large Sensor Compact camera.

Before delving into a in-depth comparison, here is a short introduction of how the A7S III grades versus the RX1R in relation to portability, imaging, features and an overall grade.

Below is a sample of the gallery pics for Sony Alpha A7S III & Sony Cyber-shot DSC-RX1R. The full galleries are provided at Sony A7S III Gallery & Sony RX1R Gallery.

When you are planning to lug around your camera frequently, you will need to think about its weight and proportions. The Sony A7S III has outside dimensions of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") accompanied by a weight of 699 grams (1.54 lbs) while the Sony RX1R has measurements of 113mm x 65mm x 70mm (4.4" x 2.6" x 2.8") along with a weight of 482 grams (1.06 lbs).

Look at the Sony A7S III versus Sony RX1R in our brand new Camera plus Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will change dependant on the lens you are working with at that time. Below is a front view size comparison of the A7S III versus the RX1R.

Taking into account dimensions and weight, the portability rating of the A7S III and RX1R is 61 and 79 respectively.

Typically, it's hard to imagine the contrast between sensor measurements purely by checking specifications. The visual underneath should offer you a much better sense of the sensor dimensions in the A7S III and RX1R.

To sum up, the two cameras feature the identical sensor size but different megapixels. You can expect to see the Sony RX1R to give you extra detail having an extra 12MP. Greater resolution will also enable you to crop photos way more aggressively. The newer A7S III should have an edge in sensor innovation.