Sony A7 vs Sony RX100 III

Here, we will be reviewing the Sony A7 versus Sony RX100 III, one is a Pro Mirrorless and the latter is a Large Sensor Compact and both are created by Sony. The image resolution of the A7 (24MP) and the RX100 III (20MP) is relatively close but the A7 (Full frame) and RX100 III (1") posses totally different sensor dimensions.

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The A7 was unveiled 3 months earlier than the RX100 III and they are of a similar generation. Both the cameras feature different body design with the Sony A7 being a SLR-style mirrorless camera and the Sony RX100 III being a Large Sensor Compact camera.

Before we go into a more detailed comparison, here is a short view of how the A7 scores against the RX100 III in terms of portability, imaging, features and an overall mark.

Below is a preview of the gallery photos for Sony Alpha A7 and Sony Cyber-shot DSC-RX100 III. The full galleries are available at Sony A7 Gallery and Sony RX100 III Gallery.

For anybody who is aiming to travel with your camera frequently, you'll need to factor its weight and volume. The Sony A7 enjoys external measurements of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") with a weight of 474 grams (1.04 lbs) whilst 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).

Analyze the Sony A7 versus Sony RX100 III in the new Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will change depending on the lens you select at that time. Below is a front view measurements comparison of the A7 against the RX100 III.

Considering dimensions and weight, the portability grade of the A7 and RX100 III is 78 and 89 respectively.

More often than not, it's tough to visualise the difference in sensor dimensions simply by researching a spec sheet. The picture below may provide you a much better sense of the sensor measurements in the A7 and RX100 III.

As you can see, each of the cameras feature different resolutions and different sensor dimensions. The A7 using its bigger sensor will make getting shallower depth of field easier and the Sony A7 will provide you with extra detail having an extra 4 Megapixels. Higher resolution will let you crop shots way more aggressively.