Pentax WG-3 GPS vs Sony RX100 IV

On this page, we are analyzing the Pentax WG-3 GPS vs Sony RX100 IV, one is a Waterproof and the other is a Large Sensor Compact by companies Pentax and Sony. The image resolution of the WG-3 GPS (16MP) and the RX100 IV (20MP) is fairly well matched but the WG-3 GPS (1/2.3") and RX100 IV (1") have different sensor sizes.

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The WG-3 GPS was revealed 23 months before the RX100 IV making them a generation away from each other. Both of the cameras have different body design with the Pentax WG-3 GPS being a Compact camera and the Sony RX100 IV being a Large Sensor Compact camera.

Before we go right into a in depth comparison, here is a simple synopsis of how the WG-3 GPS matches up against the RX100 IV in the way of portability, imaging, features and an overall mark.

Below is a sample of the gallery pictures for Pentax WG-3 GPS and Sony Cyber-shot DSC-RX100 IV. The full galleries are provided at Pentax WG-3 GPS Gallery and Sony RX100 IV Gallery.

For those who are going to travel with your camera often, you are going to need to consider its weight and dimensions. The Pentax WG-3 GPS features external dimensions of 125mm x 64mm x 33mm (4.9" x 2.5" x 1.3") with a weight of 238 grams (0.52 lbs) whilst the Sony RX100 IV has dimensions of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") along with a weight of 298 grams (0.66 lbs).

Take a look at the Pentax WG-3 GPS vs Sony RX100 IV in the all new Camera and Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will change based on the lens you are employing at that moment. Below is a front view physical size comparison of the WG-3 GPS compared to the RX100 IV.

Factoring in size and weight, the portability grade of the WG-3 GPS and RX100 IV is 90 and 89 respectively.

Often, its tough to imagine the contrast between sensor dimensions just by reading through a spec sheet. The picture underneath will help give you a stronger sense of the sensor dimensions in the WG-3 GPS and RX100 IV.

As you can see, both of the cameras have different megapixel count and different sensor dimensions. The WG-3 GPS with its tinier sensor is going to make shooting shallow depth of field more challenging and the Sony RX100 IV will give you more detail because of its extra 4 Megapixels. Greater resolution will make it easier to crop pics a bit more aggressively. The more aged WG-3 GPS is going to be disadvantaged when it comes to sensor technology.