Nikon S640 vs Pentax WG-3 GPS

Its time to look more closely at the Nikon S640 and Pentax WG-3 GPS, one being a Small Sensor Compact and the other is a Waterproof by companies Nikon and Pentax. There is a crucial difference among the sensor resolutions of the S640 (12MP) and WG-3 GPS (16MP) but they feature the exact same sensor measurements (1/2.3").

Photography Glossary

The S640 was manufactured 5 years earlier than the WG-3 GPS and that is a fairly serious gap as far as camera tech is concerned. Both the cameras come with the identical body type (Compact).

Before we go through a thorough comparison, below is a short introduction of how the S640 grades versus the WG-3 GPS in the way of portability, imaging, features and an overall rating.

This is a sample of the gallery pictures for Nikon Coolpix S640 and Pentax WG-3 GPS. The entire galleries are provided at Nikon S640 Gallery and Pentax WG-3 GPS Gallery.

For anyone who is planning to carry your camera often, you will have to factor its weight and volume. The Nikon S640 has got physical dimensions of 91mm x 55mm x 21mm (3.6" x 2.2" x 0.8") and a weight of 130 grams (0.29 lbs) and the Pentax WG-3 GPS has sizing of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") having a weight of 238 grams (0.52 lbs).

Take a look at the Nikon S640 and Pentax WG-3 GPS in the latest Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are using at the time. Below is the front view measurement comparison of the S640 versus the WG-3 GPS.

Considering size and weight, the portability rating of the S640 and WG-3 GPS is 96 and 90 respectively.

In many cases, it can be difficult to visualise the contrast in sensor sizing merely by researching technical specs. The photograph below might offer you a much better sense of the sensor dimensions in the S640 and WG-3 GPS.

As you have seen, each of these cameras posses the exact same sensor measurements but not the same MP. You should anticipate the Pentax WG-3 GPS to result in more detail due to its extra 4MP. Greater resolution will also allow you to crop images somewhat more aggressively. The older S640 will be disadvantaged with regard to sensor innovation.