Sony A7S III vs Sony RX100

Its time to take a more detailed look at the Sony A7S III and Sony RX100, former being a Pro Mirrorless while the other is a Large Sensor Compact and they are both manufactured by Sony. There exists a considerable gap among the image resolutions of the A7S III (12MP) and RX100 (20MP) and the A7S III (Full frame) and RX100 (1") enjoy totally different sensor dimensions.

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The A7S III was brought out 8 years later than the RX100 and that is a fairly large difference as far as camera technology is concerned. Both of the cameras offer different body type with the Sony A7S III being a SLR-style mirrorless camera and the Sony RX100 being a Large Sensor Compact camera.

Before going through a in depth comparison, below is a simple introduction of how the A7S III grades vs the RX100 in regards 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-RX100. The entire galleries are viewable at Sony A7S III Gallery & Sony RX100 Gallery.

When you are looking to lug around your camera frequently, you have to consider its weight and proportions. The Sony A7S III features outside measurements of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") along with a weight of 699 grams (1.54 lbs) while the Sony RX100 has measurements of 102mm x 58mm x 36mm (4.0" x 2.3" x 1.4") accompanied by a weight of 240 grams (0.53 lbs).

See the Sony A7S III and Sony RX100 in our brand new Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will vary dependant on the lens you have chosen at that time. Here is the front view proportions comparison of the A7S III vs the RX100.

Looking at dimensions and weight, the portability grade of the A7S III and RX100 is 61 and 91 respectively.

Sometimes, it is very difficult to visualise the difference in sensor measurements purely by checking out technical specs. The photograph here will help offer you a stronger sense of the sensor sizing in the A7S III and RX100.

As you have seen, the 2 cameras offer different resolutions and different sensor measurements. The A7S III because of its larger sensor will make achieving shallow depth of field simpler and the Sony RX100 will provide extra detail having its extra 8MP. Greater resolution can also let you crop pics a little more aggressively. The more recent A7S III is going to have a benefit when it comes to sensor tech.