Olympus E-M5 III vs Pentax K-01

Here, we are evaluating the Olympus E-M5 III vs Pentax K-01, former being a Advanced Mirrorless while the other is a Entry-Level Mirrorless by rivals Olympus and Pentax. There exists a considerable gap between the image resolutions of the E-M5 III (20MP) and K-01 (16MP) and the E-M5 III (Four Thirds) and K-01 (APS-C) have totally different sensor sizing.

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The E-M5 III was announced 7 years later than the K-01 and that is quite a large difference as far as technology is concerned. Both of these cameras feature the same body design (SLR-style mirrorless).

Before going straight to a thorough comparison, here is a short overview of how the E-M5 III scores against the K-01 in relation to portability, imaging, features and an overall rating.

The following is a sample of the gallery pictures for Olympus OM-D E-M5 III & Pentax K-01. The whole galleries are viewable at Olympus E-M5 III Gallery & Pentax K-01 Gallery.

When you are going to carry your camera often, you are going to need to consider its weight and dimensions. The Olympus E-M5 III offers physical dimensions of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") along with a weight of 414 grams (0.91 lbs) and the Pentax K-01 has dimensions of 122mm x 79mm x 58mm (4.8" x 3.1" x 2.3") with a weight of 561 grams (1.24 lbs).

See the Olympus E-M5 III vs Pentax K-01 in our completely new Camera & Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will change dependant on the lens you have attached at that time. Following is a front view over all size comparison of the E-M5 III vs the K-01.

Taking into account dimensions and weight, the portability rating of the E-M5 III and K-01 is 80 and 76 respectively.

Typically, its difficult to visualise the gap between sensor sizing only by going over a spec sheet. The graphic here might give you a more clear sense of the sensor sizes in the E-M5 III and K-01.

Clearly, the two cameras feature different megapixels and different sensor sizing. The E-M5 III using its tinier sensor will make shooting shallow depth of field trickier and the Olympus E-M5 III will deliver more detail with its extra 4 Megapixels. Greater resolution can also make it easier to crop images way more aggressively. The younger E-M5 III is going to have an edge when it comes to sensor technology.