Pentax E90 vs Sony A7R IV

Let's take a deeper look at the Pentax E90 and Sony A7R IV, one is a Small Sensor Compact and the other is a Pro Mirrorless by companies Pentax and Sony. There is a huge difference among the image resolutions of the E90 (10MP) and A7R IV (61MP) and the E90 (1/2.3") and A7R IV (Full frame) offer different sensor measurements.

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The E90 was introduced 10 years prior to the A7R IV which is a fairly significant gap as far as camera tech is concerned. Both cameras feature different body design with the Pentax E90 being a Compact camera and the Sony A7R IV being a SLR-style mirrorless camera.

Before we go into a more detailed comparison, here is a short synopsis of how the E90 scores vs the A7R IV when considering portability, imaging, features and an overall score.

The following is a sample of the gallery pictures for Pentax Optio E90 and Sony Alpha A7R IV. The whole galleries are provided at Pentax E90 Gallery and Sony A7R IV Gallery.

If you are going to carry around your camera, you'll need to factor its weight and measurements. The Pentax E90 has got outer measurements of 102mm x 59mm x 25mm (4.0" x 2.3" x 1.0") having a weight of 145 grams (0.32 lbs) and the Sony A7R IV has proportions of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") and a weight of 665 grams (1.47 lbs).

Check the Pentax E90 and Sony A7R IV in the all new Camera and Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will differ based on the lens you are utilizing at the time. The following is a front view physical size comparison of the E90 against the A7R IV.

Looking at size and weight, the portability rating of the E90 and A7R IV is 94 and 62 respectively.

Usually, its tough to imagine the contrast in sensor sizes merely by viewing technical specs. The picture below will help give you a stronger sense of the sensor sizing in the E90 and A7R IV.

As you can tell, both of those cameras come with different megapixel count and different sensor sizes. The E90 having a smaller sensor is going to make getting shallower DOF trickier and the Sony A7R IV will provide you with greater detail using its extra 51 Megapixels. Greater resolution can also let you crop pics a good deal more aggressively. The more aged E90 will be disadvantaged with regard to sensor tech.