Olympus E-M10 IV vs Pentax K-S1

Its time to look more closely at the Olympus E-M10 IV vs Pentax K-S1, former is a Entry-Level Mirrorless while the latter is a Advanced DSLR by rivals Olympus and Pentax. The resolution of the E-M10 IV (20MP) and the K-S1 (20MP) is pretty similar but the E-M10 IV (Four Thirds) and K-S1 (APS-C) offer different sensor sizes.

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The E-M10 IV was unveiled 6 years after the K-S1 which is quite a big difference as far as technology is concerned. Both of the cameras feature different body design with the Olympus E-M10 IV being a SLR-style mirrorless camera and the Pentax K-S1 being a Mid-size SLR camera.

Before we go into a full comparison, here is a quick synopsis of how the E-M10 IV matches up vs the K-S1 in terms of portability, imaging, features and an overall mark.

Here is a preview of the gallery images for Olympus OM-D E-M10 IV & Pentax K-S1. The full galleries are viewable at Olympus E-M10 IV Gallery & Pentax K-S1 Gallery.

For those who are intending to travel with your camera often, you're going to have to consider its weight and proportions. The Olympus E-M10 IV offers external dimensions of 122mm x 84mm x 49mm (4.8" x 3.3" x 1.9") accompanied by a weight of 383 grams (0.84 lbs) and the Pentax K-S1 has measurements of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") with a weight of 558 grams (1.23 lbs).

Contrast the Olympus E-M10 IV vs Pentax K-S1 in our brand new Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will vary based on the lens you are using at that time. Below is a front view over all size comparison of the E-M10 IV vs the K-S1.

Factoring in dimensions and weight, the portability score of the E-M10 IV and K-S1 is 81 and 69 respectively.

Normally, its tough to picture the difference between sensor dimensions simply by going over a spec sheet. The picture below will help offer you a far better sense of the sensor dimensions in the E-M10 IV and K-S1.

Clearly, both of those cameras come with the identical megapixel count albeit different sensor dimensions. The E-M10 IV features the tinier sensor which is going to make getting shallower depth of field tougher. The younger E-M10 IV should have a benefit with regard to sensor tech.