Olympus E-M1 III vs Pentax WG-2

Following is a complete review of the Olympus E-M1 III and Pentax WG-2, former is a Pro Mirrorless while the latter is a Waterproof by manufacturers Olympus and Pentax. There is a considerable difference between the sensor resolutions of the E-M1 III (20MP) and WG-2 (16MP) and the E-M1 III (Four Thirds) and WG-2 (1/2.3") provide different sensor sizes.

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The E-M1 III was released 8 years after the WG-2 which is quite a large difference as far as tech is concerned. Each of the cameras feature different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Pentax WG-2 being a Compact camera.

Before diving into a complete comparison, here is a quick highlight of how the E-M1 III matches up against the WG-2 in terms of portability, imaging, features and an overall score.

This is a preview of the gallery images for Olympus OM-D E-M1 Mark III & Pentax Optio WG-2. The complete galleries are provided at Olympus E-M1 III Gallery & Pentax WG-2 Gallery.

If you're intending to carry around your camera frequently, you are going to need to take into account its weight and dimensions. The Olympus E-M1 III comes with outer measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs) whilst the Pentax WG-2 has dimensions of 122mm x 61mm x 30mm (4.8" x 2.4" x 1.2") accompanied by a weight of 192 grams (0.42 lbs).

Examine the Olympus E-M1 III and Pentax WG-2 in our completely new Camera plus Lens Size Comparison Tool.

Remember that, the weight of an ILC will vary depending on the lens you select at that time. Here is a front view dimensions comparison of the E-M1 III and the WG-2.

Considering size and weight, the portability grade of the E-M1 III and WG-2 is 67 and 91 respectively.

Oftentimes, its hard to visualize the difference between sensor sizes purely by going over specifications. The image below will help offer you a stronger sense of the sensor sizing in the E-M1 III and WG-2.

Plainly, both of the cameras feature different megapixels and different sensor sizes. The E-M1 III featuring a bigger sensor is going to make shooting shallow DOF less difficult and the Olympus E-M1 III will offer you extra detail as a result of its extra 4MP. Higher resolution can also help you crop shots way more aggressively. The younger E-M1 III should have a benefit in sensor tech.