Pentax RZ18 vs Ricoh WG-4 GPS

Here is a in depth assessment of the Pentax RZ18 versus Ricoh WG-4 GPS, one being a Small Sensor Superzoom and the latter is a Waterproof by manufacturers Pentax and Ricoh. The resolution of the RZ18 (16MP) and the WG-4 GPS (16MP) is relatively similar and both cameras offer the same sensor dimensions (1/2.3").

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The RZ18 was introduced 3 years prior to the WG-4 GPS and that is quite a sizable gap as far as tech is concerned. Both of the cameras have the same body design (Compact).

Before going into a thorough comparison, here is a concise summation of how the RZ18 scores versus the WG-4 GPS in the way of portability, imaging, features and an overall rating.

Below is a preview of the gallery photos for Pentax Optio RZ18 and Ricoh WG-4 GPS. The whole galleries are available at Pentax RZ18 Gallery and Ricoh WG-4 GPS Gallery.

If you're going to carry your camera often, you are going to need to think about its weight and size. The Pentax RZ18 has got outer dimensions of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") with a weight of 178 grams (0.39 lbs) whilst the Ricoh WG-4 GPS has specifications of 124mm x 64mm x 33mm (4.9" x 2.5" x 1.3") along with a weight of 235 grams (0.52 lbs).

See the Pentax RZ18 versus Ricoh WG-4 GPS in the latest Camera with Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will differ depending on the lens you select at the time. Underneath is a front view over all size comparison of the RZ18 compared to the WG-4 GPS.

Taking into account size and weight, the portability score of the RZ18 and WG-4 GPS is 92 and 90 respectively.

In many cases, it's hard to visualise the difference between sensor sizing simply by reading technical specs. The visual underneath will provide you a stronger sense of the sensor sizes in the RZ18 and WG-4 GPS.

As you can tell, both the cameras provide the same sensor dimensions and the exact same MP therefore you should expect similar quality of pictures but you might want to take the release date of the products into consideration. The older RZ18 is going to be behind when it comes to sensor innovation.