Pentax X70 vs Sony A7R IV

In this write-up, we will be comparing the Pentax X70 and Sony A7R IV, one being a Small Sensor Superzoom and the latter is a Pro Mirrorless by competitors Pentax and Sony. There is a big difference between the image resolutions of the X70 (12MP) and A7R IV (61MP) and the X70 (1/2.3") and A7R IV (Full frame) enjoy different sensor sizing.

Photography Glossary

The X70 was manufactured 11 years earlier than the A7R IV and that is quite a big gap as far as tech is concerned. Both of these cameras offer different body type with the Pentax X70 being a SLR-like (bridge) camera and the Sony A7R IV being a SLR-style mirrorless camera.

Before delving in to a comprehensive comparison, below is a brief view of how the X70 matches up versus the A7R IV when considering portability, imaging, features and an overall rating.

Here is a preview of the gallery images for Pentax X70 and Sony Alpha A7R IV. The entire galleries are viewable at Pentax X70 Gallery and Sony A7R IV Gallery.

When you are planning to carry your camera regularly, you'll need to consider its weight and proportions. The Pentax X70 enjoys outside dimensions of 110mm x 83mm x 90mm (4.3" x 3.3" x 3.5") and a weight of 410 grams (0.90 lbs) whilst the Sony A7R IV has measurements of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") with a weight of 665 grams (1.47 lbs).

Check out the Pentax X70 and Sony A7R IV in the latest Camera with Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will change based on the lens you select at that moment. Underneath is the front view proportions comparison of the X70 against the A7R IV.

Factoring in size and weight, the portability rating of the X70 and A7R IV is 71 and 62 respectively.

Oftentimes, it is hard to imagine the gap between sensor sizing simply by reviewing specs. The graphic underneath might offer you a greater sense of the sensor sizes in the X70 and A7R IV.

As you can plainly see, both of these cameras enjoy different megapixels and different sensor sizing. The X70 due to its tinier sensor is going to make shooting shallow depth of field tougher and the Sony A7R IV will offer extra detail due to its extra 49MP. Higher resolution will let you crop photographs far more aggressively. The older X70 is going to be disadvantaged when it comes to sensor tech.