Pentax WG-3 vs Sony A7R

Below is a thorough overview of the Pentax WG-3 and Sony A7R, former being a Waterproof while the other is a Pro Mirrorless by rivals Pentax and Sony. There is a substantial difference between the resolutions of the WG-3 (16MP) and A7R (36MP) and the WG-3 (1/2.3") and A7R (Full frame) possess totally different sensor size.

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The WG-3 was revealed 6 months prior to the A7R and they are both of a similar age. Both of the cameras offer different body type with the Pentax WG-3 being a Compact camera and the Sony A7R being a SLR-style mirrorless camera.

Before diving through a detailed comparison, below is a simple synopsis of how the WG-3 scores vs the A7R with regards to portability, imaging, features and an overall grade.

Below is a sample of the gallery pics for Pentax WG-3 & Sony Alpha A7R. The full galleries are provided at Pentax WG-3 Gallery & Sony A7R Gallery.

If you're aiming to lug around your camera often, you're going to have to take into account its weight and size. The Pentax WG-3 has got physical dimensions of 124mm x 64mm x 33mm (4.9" x 2.5" x 1.3") with a weight of 230 grams (0.51 lbs) and the Sony A7R has specifications of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") and a weight of 465 grams (1.03 lbs).

Look at the Pentax WG-3 and Sony A7R in our brand new Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will vary depending on the lens you have attached during that time. The following is the front view overall size comparison of the WG-3 against the A7R.

Taking into consideration size and weight, the portability score of the WG-3 and A7R is 90 and 78 respectively.

Usually, its hard to envision the difference between sensor measurements merely by going over specs. The graphic here should offer you a better sense of the sensor dimensions in the WG-3 and A7R.

As you can plainly see, both of the cameras enjoy different megapixels and different sensor measurements. The WG-3 having a tinier sensor will make shooting shallower depth of field trickier and the Sony A7R will deliver more detail because of its extra 20 Megapixels. Greater resolution can also let you crop photos far more aggressively.