Pentax RZ18 vs Pentax WG-3 GPS

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

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

Before getting through a detailed comparison, below is a brief highlight of how the RZ18 matches up against the WG-3 GPS for portability, imaging, features and an overall score.

This is a preview of the gallery images for Pentax Optio RZ18 & Pentax WG-3 GPS. The whole galleries are provided at Pentax RZ18 Gallery & Pentax WG-3 GPS Gallery.

If you're planning to carry around your camera frequently, you are going to need to think about its weight and volume. The Pentax RZ18 features exterior dimensions of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") having a weight of 178 grams (0.39 lbs) and the Pentax WG-3 GPS has sizing of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") with a weight of 238 grams (0.52 lbs).

Check out the Pentax RZ18 and Pentax WG-3 GPS in our brand new Camera plus Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will change dependant on the lens you use at that moment. The following is the front view sizing comparison of the RZ18 and the WG-3 GPS.

Using dimensions and weight, the portability rating of the RZ18 and WG-3 GPS is 92 and 90 respectively.

Quite often, it's difficult to visualise the contrast in sensor sizes simply by checking out specs. The pic here will give you a stronger sense of the sensor sizes in the RZ18 and WG-3 GPS.

All in all, both cameras enjoy the same exact sensor sizing and the same MP therefore you can expect comparable quality of photos but you should really factor the age of the cameras into account. The more aged RZ18 will be behind when it comes to sensor technology.