Olympus E-M1 III vs Pentax S1

Following is a extended overview of the Olympus E-M1 III vs Pentax S1, former is a Pro Mirrorless while the other is a Small Sensor Compact by manufacturers Olympus and Pentax. There is a considerable difference among the image resolutions of the E-M1 III (20MP) and S1 (14MP) and the E-M1 III (Four Thirds) and S1 (1/2.3") feature totally different sensor sizing.

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The E-M1 III was unveiled 9 years after the S1 which is a fairly large difference as far as camera tech is concerned. Each of the cameras offer different body type with the Olympus E-M1 III being a SLR-style mirrorless camera and the Pentax S1 being a Compact camera.

Before we go through a thorough comparison, below is a concise overview of how the E-M1 III grades versus the S1 in relation to portability, imaging, features and an overall score.

Here is a sample of the gallery pics for Olympus OM-D E-M1 Mark III & Pentax Optio S1. The full galleries are provided at Olympus E-M1 III Gallery & Pentax S1 Gallery.

For those who are looking to carry around your camera, you should think about its weight and dimensions. The Olympus E-M1 III comes with exterior measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") accompanied by a weight of 580 grams (1.28 lbs) while the Pentax S1 has dimensions of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") having a weight of 157 grams (0.35 lbs).

Check out the Olympus E-M1 III vs Pentax S1 in our brand new Camera & Lens Size Comparison Tool.

Remember that, the weight of an ILC will change based on the lens you are utilising at that time. Following is the front view proportions comparison of the E-M1 III and the S1.

Looking at size and weight, the portability rating of the E-M1 III and S1 is 67 and 93 respectively.

Usually, it can be tough to envision the gap in sensor sizes purely by looking through a spec sheet. The pic here might provide you a more clear sense of the sensor measurements in the E-M1 III and S1.

As you can see, each of these cameras offer different megapixel count and different sensor sizes. The E-M1 III with its larger sensor will make shooting bokeh simpler and the Olympus E-M1 III will result in greater detail having an extra 6MP. Greater resolution can also let you crop images a little more aggressively. The more recent E-M1 III will have an edge in sensor technology.