Pentax WG-3 vs Sony A7R IV

Below, we are matching up the Pentax WG-3 and Sony A7R IV, one is a Waterproof and the other is a Pro Mirrorless by companies Pentax and Sony. There exists a significant gap among the image resolutions of the WG-3 (16MP) and A7R IV (61MP) and the WG-3 (1/2.3") and A7R IV (Full frame) feature different sensor sizing.

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The WG-3 was unveiled 7 years prior to the A7R IV which is a fairly sizable gap as far as camera technology is concerned. Both of the cameras come with different body type with the Pentax WG-3 being a Compact camera and the Sony A7R IV being a SLR-style mirrorless camera.

Before delving straight into a detailed comparison, below is a short synopsis of how the WG-3 matches up vs the A7R IV in regards to portability, imaging, features and an overall mark.

Below is a sample of the gallery pictures for Pentax WG-3 and Sony Alpha A7R IV. The full galleries are viewable at Pentax WG-3 Gallery and Sony A7R IV Gallery.

If you are aiming to travel with your camera often, you will have to consider its weight and size. The Pentax WG-3 enjoys external dimensions of 124mm x 64mm x 33mm (4.9" x 2.5" x 1.3") accompanied by a weight of 230 grams (0.51 lbs) while the Sony A7R IV has specifications of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") with a weight of 665 grams (1.47 lbs).

Check out the Pentax WG-3 and Sony A7R IV in the latest Camera and Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will vary depending on the lens you are utilising during that time. Underneath is the front view overall size comparison of the WG-3 against the A7R IV.

Taking into account dimensions and weight, the portability score of the WG-3 and A7R IV is 90 and 62 respectively.

Typically, it can be hard to imagine the difference in sensor dimensions merely by viewing specifications. The pic below should give you a far better sense of the sensor dimensions in the WG-3 and A7R IV.

Plainly, both of these cameras have got different megapixel count and different sensor dimensions. The WG-3 with its smaller sensor is going to make getting bokeh more difficult and the Sony A7R IV will result in extra detail having an extra 45MP. Greater resolution will also make it easier to crop pics much more aggressively. The more aged WG-3 will be disadvantaged when it comes to sensor technology.