Pentax RZ18 vs Pentax WG-3

In this article, we will be analyzing the Pentax RZ18 and Pentax WG-3, former is a Small Sensor Superzoom while the latter is a Waterproof and they are both manufactured by Pentax. The resolution of the RZ18 (16MP) and the WG-3 (16MP) is relatively close and they feature the same exact sensor dimensions (1/2.3").

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The RZ18 was announced 22 months prior to the WG-3 which makes the cameras a generation away from one another. Each of the cameras offer the identical body type (Compact).

Before diving straight into a in-depth comparison, below is a quick highlight of how the RZ18 grades versus the WG-3 in the way of portability, imaging, features and an overall score.

Below is a preview of the gallery photos for Pentax Optio RZ18 & Pentax WG-3. The whole galleries are available at Pentax RZ18 Gallery & Pentax WG-3 Gallery.

For anyone who is aiming to carry around your camera often, you need to think about its weight and proportions. The Pentax RZ18 enjoys exterior dimensions of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") accompanied by a weight of 178 grams (0.39 lbs) and the Pentax WG-3 has measurements of 124mm x 64mm x 33mm (4.9" x 2.5" x 1.3") accompanied by a weight of 230 grams (0.51 lbs).

Look at the Pentax RZ18 and Pentax WG-3 in our brand new Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will differ based on the lens you are using at that moment. Below is the front view measurement comparison of the RZ18 compared to the WG-3.

Factoring in dimensions and weight, the portability score of the RZ18 and WG-3 is 92 and 90 respectively.

Normally, it is tough to envision the gap in sensor sizes only by looking through specs. The image underneath might provide you a more clear sense of the sensor dimensions in the RZ18 and WG-3.

As you can plainly see, both of these cameras offer the same exact sensor sizing and the same MP so you can expect comparable quality of photographs but you might want to consider the launch date of the cameras into account. The more aged RZ18 will be disadvantaged in sensor technology.