Pentax S1 vs Sony A9 II

Following is a in depth comparison of the Pentax S1 and Sony A9 II, former is a Small Sensor Compact while the other is a Pro Mirrorless by competitors Pentax and Sony. There exists a noticeable gap among the sensor resolutions of the S1 (14MP) and A9 II (24MP) and the S1 (1/2.3") and A9 II (Full frame) possess totally different sensor size.

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The S1 was brought out 9 years earlier than the A9 II which is a fairly sizable difference as far as camera technology is concerned. Each of the cameras offer different body type with the Pentax S1 being a Compact camera and the Sony A9 II being a SLR-style mirrorless camera.

Before going straight into a step-by-step comparison, below is a simple view of how the S1 grades against the A9 II in relation to portability, imaging, features and an overall score.

This is a sample of the gallery pics for Pentax Optio S1 & Sony Alpha A9 Mark II. The entire galleries are provided at Pentax S1 Gallery & Sony A9 II Gallery.

For those who are intending to carry around your camera often, you will have to think about its weight and proportions. The Pentax S1 has exterior dimensions of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") having a weight of 157 grams (0.35 lbs) whilst the Sony A9 II has measurements of 129mm x 96mm x 76mm (5.1" x 3.8" x 3.0") having a weight of 678 grams (1.49 lbs).

Look at the Pentax S1 and Sony A9 II in our newest Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will vary based on the lens you have during that time. Underneath is the front view measurements comparison of the S1 compared to the A9 II.

Considering dimensions and weight, the portability rating of the S1 and A9 II is 93 and 62 respectively.

Typically, it is very difficult to visualise the gap in sensor sizes only by looking through specifications. The picture underneath might give you a more clear sense of the sensor dimensions in the S1 and A9 II.

To sum up, each of the cameras offer different resolutions and different sensor sizes. The S1 because of its smaller sensor will make shooting shallower DOF tougher and the Sony A9 II will result in greater detail having its extra 10MP. Greater resolution will enable you to crop images a little more aggressively. The more aged S1 will be disadvantaged in sensor technology.