Pentax WG-3 GPS vs Sony A6400

Let's look a bit more closely at the Pentax WG-3 GPS versus Sony A6400, former is a Waterproof while the latter is a Advanced Mirrorless by competitors Pentax and Sony. There is a noticeable difference between the image resolutions of the WG-3 GPS (16MP) and A6400 (24MP) and the WG-3 GPS (1/2.3") and A6400 (APS-C) boast different sensor sizing.

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The WG-3 GPS was released 6 years prior to the A6400 which is quite a sizable difference as far as tech is concerned. Both of the cameras feature different body design with the Pentax WG-3 GPS being a Compact camera and the Sony A6400 being a Rangefinder-style mirrorless camera.

Before getting straight to a comprehensive comparison, here is a simple view of how the WG-3 GPS matches up versus the A6400 in relation to portability, imaging, features and an overall mark.

The following is a preview of the gallery images for Pentax WG-3 GPS & Sony Alpha a6400. The complete galleries are viewable at Pentax WG-3 GPS Gallery & Sony A6400 Gallery.

If you are going to travel with your camera, you will have to factor its weight and proportions. The Pentax WG-3 GPS comes with 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) while the Sony A6400 has measurements of 120mm x 67mm x 50mm (4.7" x 2.6" x 2.0") with a weight of 403 grams (0.89 lbs).

Compare the Pentax WG-3 GPS versus Sony A6400 in our brand new Camera plus Lens Size Comparison Tool.

Remember that, the weight of an ILC will change depending on the lens you are utilizing at that time. Following is a front view proportions comparison of the WG-3 GPS vs the A6400.

Factoring in size and weight, the portability rating of the WG-3 GPS and A6400 is 90 and 83 respectively.

Usually, it's difficult to imagine the gap between sensor dimensions simply by looking at a spec sheet. The pic underneath will provide you a much better sense of the sensor sizes in the WG-3 GPS and A6400.

As you can see, the two cameras feature different megapixel count and different sensor dimensions. The WG-3 GPS featuring a tinier sensor is going to make getting shallow depth of field more challenging and the Sony A6400 will resolve greater detail as a result of its extra 8 Megapixels. Higher resolution will help you crop shots way more aggressively. The more aged WG-3 GPS is going to be behind with regard to sensor tech.