Pentax MX-1 vs Sony A7R IV

Following is a extended comparison of the Pentax MX-1 vs Sony A7R IV, one is a Small Sensor Compact and the other is a Pro Mirrorless by brands Pentax and Sony. There is a crucial difference between the image resolutions of the MX-1 (12MP) and A7R IV (61MP) and the MX-1 (1/1.7") and A7R IV (Full frame) provide totally different sensor dimensions.

Photography Glossary

The MX-1 was announced 7 years before the A7R IV which is quite a serious gap as far as tech is concerned. Each of these cameras feature different body design with the Pentax MX-1 being a Compact camera and the Sony A7R IV being a SLR-style mirrorless camera.

Before getting into a detailed comparison, here is a short synopsis of how the MX-1 grades vs the A7R IV with regards to portability, imaging, features and an overall score.

Following is a sample of the gallery pics for Pentax MX-1 and Sony Alpha A7R IV. The whole galleries are provided at Pentax MX-1 Gallery and Sony A7R IV Gallery.

For anyone who is planning to carry around your camera frequently, you should factor its weight and size. The Pentax MX-1 enjoys outer dimensions of 122mm x 61mm x 51mm (4.8" x 2.4" x 2.0") and a weight of 391 grams (0.86 lbs) whilst the Sony A7R IV has specifications of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") along with a weight of 665 grams (1.47 lbs).

Check the Pentax MX-1 vs Sony A7R IV in the latest Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will vary dependant on the lens you use at that time. Below is a front view measurement comparison of the MX-1 compared to the A7R IV.

Using size and weight, the portability grade of the MX-1 and A7R IV is 84 and 62 respectively.

Generally, it is very difficult to envision the difference between sensor sizes just by reviewing technical specs. The image underneath might offer you a better sense of the sensor sizes in the MX-1 and A7R IV.

As you can tell, both of these cameras come with different megapixels and different sensor sizes. The MX-1 having a tinier sensor will make shooting bokeh tougher and the Sony A7R IV will offer you greater detail with its extra 49 Megapixels. Greater resolution can also allow you to crop photos a good deal more aggressively. The more aged MX-1 is going to be disadvantaged when it comes to sensor tech.