Pentax MX-1 vs Sony A7 III

The following is a in depth overview of the Pentax MX-1 vs Sony A7 III, one is a Small Sensor Compact and the latter is a Pro Mirrorless by manufacturers Pentax and Sony. There exists a crucial gap between the image resolutions of the MX-1 (12MP) and A7 III (24MP) and the MX-1 (1/1.7") and A7 III (Full frame) have totally different sensor sizing.

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The MX-1 was revealed 5 years earlier than the A7 III which is quite a serious gap as far as technology is concerned. Each of the cameras have different body design with the Pentax MX-1 being a Compact camera and the Sony A7 III being a SLR-style mirrorless camera.

Before diving straight to a comprehensive comparison, here is a concise summary of how the MX-1 grades versus the A7 III when considering portability, imaging, features and an overall mark.

Here is a preview of the gallery images for Pentax MX-1 and Sony Alpha A7 III. The full galleries are available at Pentax MX-1 Gallery and Sony A7 III Gallery.

For anyone who is intending to travel with your camera regularly, you're going to have to factor its weight and volume. The Pentax MX-1 comes with outside dimensions of 122mm x 61mm x 51mm (4.8" x 2.4" x 2.0") along with a weight of 391 grams (0.86 lbs) whilst the Sony A7 III has sizing of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 650 grams (1.43 lbs).

Check out the Pentax MX-1 vs Sony A7 III in the latest Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will vary dependant on the lens you use at that moment. Here is a front view scale comparison of the MX-1 and the A7 III.

Factoring in dimensions and weight, the portability score of the MX-1 and A7 III is 84 and 63 respectively.

Normally, it's tough to envision the contrast between sensor dimensions only by looking at technical specs. The image underneath might provide you a clearer sense of the sensor dimensions in the MX-1 and A7 III.

As you have seen, the 2 cameras have different megapixel count and different sensor dimensions. The MX-1 having a tinier sensor will make getting shallow depth of field harder and the Sony A7 III will give greater detail because of its extra 12 Megapixels. Higher resolution will let you crop shots a bit more aggressively. The more aged MX-1 is going to be behind when it comes to sensor technology.