Olympus E-PM1 vs Pentax WG-1 GPS

The following is a extended analysis of the Olympus E-PM1 vs Pentax WG-1 GPS, former is a Entry-Level Mirrorless while the other is a Waterproof by competitors Olympus and Pentax. The sensor resolution of the E-PM1 (12MP) and the WG-1 GPS (14MP) is fairly similar but the E-PM1 (Four Thirds) and WG-1 GPS (1/2.3") come with totally different sensor measurements.

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The E-PM1 was unveiled 4 months after the WG-1 GPS which means that they are of a similar age. Both cameras offer different body type with the Olympus E-PM1 being a Rangefinder-style mirrorless camera and the Pentax WG-1 GPS being a Compact camera.

Before getting straight into a detailed comparison, below is a short summary of how the E-PM1 scores versus the WG-1 GPS for portability, imaging, features and an overall mark.

Following is a sample of the gallery pictures for Olympus PEN E-PM1 & Pentax Optio WG-1 GPS. The full galleries are viewable at Olympus E-PM1 Gallery & Pentax WG-1 GPS Gallery.

For anyone who is intending to travel with your camera often, you are going to need to factor in its weight and measurements. The Olympus E-PM1 features exterior dimensions of 110mm x 64mm x 34mm (4.3" x 2.5" x 1.3") with a weight of 265 grams (0.58 lbs) while the Pentax WG-1 GPS has proportions of 116mm x 59mm x 29mm (4.6" x 2.3" x 1.1") along with a weight of 167 grams (0.37 lbs).

Check the Olympus E-PM1 vs Pentax WG-1 GPS in our completely new Camera plus Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will vary based on the lens you choose at the time. The following is the front view overall size comparison of the E-PM1 and the WG-1 GPS.

Considering size and weight, the portability score of the E-PM1 and WG-1 GPS is 89 and 93 respectively.

Generally, it is very tough to see the difference between sensor dimensions purely by reviewing a spec sheet. The image below may give you a more clear sense of the sensor dimensions in the E-PM1 and WG-1 GPS.

As you can see, each of these cameras enjoy different resolutions and different sensor dimensions. The E-PM1 with its larger sensor will make getting shallower DOF simpler and the Pentax WG-1 GPS will offer you more detail having an extra 2MP. Greater resolution will let you crop images far more aggressively.