Olympus TG-870 vs Pentax WG-3 GPS

In this article, we are evaluating the Olympus TG-870 and Pentax WG-3 GPS, one being a Ultracompact and the other is a Waterproof by brands Olympus and Pentax. The resolution of the TG-870 (16MP) and the WG-3 GPS (16MP) is fairly comparable and they come with the same exact sensor dimensions (1/2.3").

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The TG-870 was released 2 years later than the WG-3 GPS and that is a fairly serious gap as far as camera technology is concerned. Each of these cameras offer different body type with the Olympus TG-870 being a Ultracompact camera and the Pentax WG-3 GPS being a Compact camera.

Before diving straight into a in depth comparison, below is a concise introduction of how the TG-870 grades vs the WG-3 GPS in regards to portability, imaging, features and an overall rating.

Here is a sample of the gallery pictures for Olympus Stylus Tough TG-870 and Pentax WG-3 GPS. The complete galleries are provided at Olympus TG-870 Gallery and Pentax WG-3 GPS Gallery.

In case you're intending to carry your camera often, you should consider its weight and dimensions. The Olympus TG-870 enjoys exterior dimensions of 113mm x 64mm x 28mm (4.4" x 2.5" x 1.1") having a weight of 221 grams (0.49 lbs) whilst the Pentax WG-3 GPS has dimensions of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") with a weight of 238 grams (0.52 lbs).

Check the Olympus TG-870 and Pentax WG-3 GPS in the latest Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will vary depending on the lens you select at that time. Following is the front view dimension comparison of the TG-870 and the WG-3 GPS.

Considering dimensions and weight, the portability rating of the TG-870 and WG-3 GPS is 91 and 90 respectively.

More often than not, it is hard to picture the contrast in sensor sizing purely by going through technical specs. The photograph below will give you a clearer sense of the sensor dimensions in the TG-870 and WG-3 GPS.

As you have seen, both of these cameras offer the same exact sensor sizing and the identical MP and you should expect comparable quality of images though you should really take the production date of the cameras into account. The more recent TG-870 should have a benefit in sensor technology.