Sony A9 vs Sony RX100 IV

Its time to look more closely at the Sony A9 vs Sony RX100 IV, former is a Pro Mirrorless while the latter is a Large Sensor Compact and both are created by Sony. The image resolution of the A9 (24MP) and the RX100 IV (20MP) is pretty close but the A9 (Full frame) and RX100 IV (1") enjoy different sensor size.

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The A9 was unveiled 23 months after the RX100 IV which makes the cameras a generation away from one another. Both the cameras offer different body type with the Sony A9 being a SLR-style mirrorless camera and the Sony RX100 IV being a Large Sensor Compact camera.

Before diving in to a more detailed comparison, below is a short summary of how the A9 grades versus the RX100 IV with regard to portability, imaging, features and an overall mark.

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

When you are planning to travel with your camera, you should factor its weight and volume. The Sony A9 has got outer measurements of 127mm x 96mm x 63mm (5.0" x 3.8" x 2.5") having a weight of 673 grams (1.48 lbs) whilst the Sony RX100 IV has sizing of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") along with a weight of 298 grams (0.66 lbs).

Compare the Sony A9 vs Sony RX100 IV in our completely new Camera & Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will vary based on the lens you are using at the time. Below is the front view sizing comparison of the A9 vs the RX100 IV.

Using dimensions and weight, the portability rating of the A9 and RX100 IV is 65 and 89 respectively.

More often than not, its tough to imagine the gap in sensor dimensions simply by researching specs. The picture underneath will help give you a far better sense of the sensor sizing in the A9 and RX100 IV.

As you can plainly see, each of these cameras enjoy different megapixel count and different sensor dimensions. The A9 with its bigger sensor is going to make getting shallow DOF less difficult and the Sony A9 will provide you with extra detail having an extra 4MP. Higher resolution can also help you crop photographs far more aggressively. The more modern A9 should have an advantage in sensor tech.