Sony A9 vs Sony RX100

Let's look a bit more closely at the Sony A9 vs Sony RX100, former being a Pro Mirrorless while the latter is a Large Sensor Compact and both of them are produced by Sony. The sensor resolution of the A9 (24MP) and the RX100 (20MP) is relatively well matched but the A9 (Full frame) and RX100 (1") feature different sensor dimensions.

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The A9 was unveiled 4 years later than the RX100 and that is quite a serious difference as far as tech is concerned. The two cameras offer different body type with the Sony A9 being a SLR-style mirrorless camera and the Sony RX100 being a Large Sensor Compact camera.

Before going through a detailed comparison, below is a simple introduction of how the A9 scores versus the RX100 in relation to portability, imaging, features and an overall rating.

Here is a preview of the gallery photos for Sony Alpha A9 & Sony Cyber-shot DSC-RX100. The full galleries are available at Sony A9 Gallery & Sony RX100 Gallery.

For anyone who is intending to carry your camera often, you'll need to factor in its weight and volume. The Sony A9 has outer dimensions of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") and a weight of 673 grams (1.48 lbs) and the Sony RX100 has sizing of 102mm x 58mm x 36mm (4.0" x 2.3" x 1.4") and a weight of 240 grams (0.53 lbs).

Examine the Sony A9 vs Sony RX100 in our newest Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will differ depending on the lens you have chosen during that time. Underneath is the front view sizing comparison of the A9 compared to the RX100.

Taking into account size and weight, the portability rating of the A9 and RX100 is 65 and 91 respectively.

Generally, it can be tough to picture the contrast between sensor sizing merely by looking at technical specs. The graphic below should provide you a better sense of the sensor sizes in the A9 and RX100.

As you can tell, the two cameras offer different megapixel count and different sensor sizing. The A9 having a bigger sensor is going to make shooting shallow DOF less difficult and the Sony A9 will resolve greater detail having an extra 4 Megapixels. Higher resolution will make it easier to crop pictures a little more aggressively. The fresher A9 provides an advantage with regard to sensor tech.