Pentax WG-3 GPS vs Sony RX10 III

In this article, we are reviewing the Pentax WG-3 GPS vs Sony RX10 III, one being a Waterproof and the other is a Large Sensor Superzoom by brands Pentax and Sony. The image resolution of the WG-3 GPS (16MP) and the RX10 III (20MP) is fairly comparable but the WG-3 GPS (1/2.3") and RX10 III (1") use different sensor size.

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The WG-3 GPS was revealed 3 years prior to the RX10 III and that is a fairly significant gap as far as camera technology is concerned. The two cameras offer different body type with the Pentax WG-3 GPS being a Compact camera and the Sony RX10 III being a SLR-like (bridge) camera.

Before we go straight into a comprehensive comparison, below is a brief summation of how the WG-3 GPS matches up vs the RX10 III in relation to portability, imaging, features and an overall rating.

Below is a sample of the gallery pictures for Pentax WG-3 GPS and Sony Cyber-shot DSC-RX10 III. The full galleries are viewable at Pentax WG-3 GPS Gallery and Sony RX10 III Gallery.

If you are going to carry your camera frequently, you have to factor in its weight and size. The Pentax WG-3 GPS has physical measurements of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") having a weight of 238 grams (0.52 lbs) whilst the Sony RX10 III has specifications of 133mm x 94mm x 127mm (5.2" x 3.7" x 5.0") accompanied by a weight of 1051 grams (2.32 lbs).

See the Pentax WG-3 GPS vs Sony RX10 III in the new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will vary based on the lens you are working with at that time. Following is the front view dimensions comparison of the WG-3 GPS vs the RX10 III.

Factoring in dimensions and weight, the portability rating of the WG-3 GPS and RX10 III is 90 and 53 respectively.

Typically, it can be difficult to picture the difference in sensor sizing only by seeing a spec sheet. The graphic below should offer you a greater sense of the sensor measurements in the WG-3 GPS and RX10 III.

Clearly, both of these cameras offer different resolutions and different sensor sizing. The WG-3 GPS having a smaller sensor is going to make shooting bokeh trickier and the Sony RX10 III will show extra detail because of its extra 4 Megapixels. Greater resolution will let you crop images a little more aggressively. The older WG-3 GPS will be behind in sensor tech.