Sony A7 III vs Sony RX100 III

On this page, we will be reviewing the Sony A7 III vs Sony RX100 III, former is a Pro Mirrorless while the latter is a Large Sensor Compact and they are both produced by Sony. The sensor resolution of the A7 III (24MP) and the RX100 III (20MP) is pretty well matched but the A7 III (Full frame) and RX100 III (1") offer totally different sensor sizes.

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The A7 III was revealed 3 years after the RX100 III which is quite a serious difference as far as tech is concerned. Each of these cameras have different body design with the Sony A7 III being a SLR-style mirrorless camera and the Sony RX100 III being a Large Sensor Compact camera.

Before getting straight to a step-by-step comparison, here is a concise synopsis of how the A7 III matches up vs the RX100 III in regards to portability, imaging, features and an overall score.

Following is a preview of the gallery images for Sony Alpha A7 III & Sony Cyber-shot DSC-RX100 III. The full galleries are provided at Sony A7 III Gallery & Sony RX100 III Gallery.

If you're aiming to carry around your camera regularly, you will need to think about its weight and volume. The Sony A7 III enjoys external dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") having a weight of 650 grams (1.43 lbs) and the Sony RX100 III has sizing of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") accompanied by a weight of 290 grams (0.64 lbs).

See the Sony A7 III vs Sony RX100 III in our completely new Camera plus Lens Size Comparison Tool.

Remember, the weight of an ILC will vary depending on the lens you select at that time. Here is a front view dimension comparison of the A7 III and the RX100 III.

Looking at size and weight, the portability score of the A7 III and RX100 III is 63 and 89 respectively.

Often, it's difficult to envision the difference between sensor sizes just by reading through specs. The pic below will help offer you a clearer sense of the sensor sizes in the A7 III and RX100 III.

As you can plainly see, each of these cameras have different megapixels and different sensor sizes. The A7 III with its bigger sensor will make getting bokeh easier and the Sony A7 III will resolve greater detail because of its extra 4 Megapixels. Higher resolution will enable you to crop pictures a bit more aggressively. The younger A7 III will have an advantage with regard to sensor technology.