Pentax WG-3 vs Sony A7c

Below, we are reviewing the Pentax WG-3 and Sony A7c, former is a Waterproof while the other is a Advanced Mirrorless by rivals Pentax and Sony. There is a sizable difference between the sensor resolutions of the WG-3 (16MP) and A7c (24MP) and the WG-3 (1/2.3") and A7c (Full frame) possess different sensor size.

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The WG-3 was revealed 8 years prior to the A7c which is quite a significant difference as far as tech is concerned. Both of the cameras come with different body type with the Pentax WG-3 being a Compact camera and the Sony A7c being a Rangefinder-style mirrorless camera.

Before diving straight into a step-by-step comparison, below is a simple highlight of how the WG-3 scores against the A7c when it comes to portability, imaging, features and an overall mark.

The following is a sample of the gallery pictures for Pentax WG-3 & Sony Alpha A7c. The full galleries are available at Pentax WG-3 Gallery & Sony A7c Gallery.

If you are intending to travel with your camera often, you are going to need to factor its weight and measurements. The Pentax WG-3 provides exterior measurements of 124mm x 64mm x 33mm (4.9" x 2.5" x 1.3") along with a weight of 230 grams (0.51 lbs) whilst the Sony A7c has proportions of 124mm x 71mm x 60mm (4.9" x 2.8" x 2.4") and a weight of 509 grams (1.12 lbs).

Check the Pentax WG-3 and Sony A7c in our brand new Camera & Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will change based on the lens you have attached at the time. Below is the front view dimensions comparison of the WG-3 and the A7c.

Taking into consideration size and weight, the portability score of the WG-3 and A7c is 90 and 78 respectively.

Generally, it is very difficult to picture the contrast between sensor dimensions simply by reading through specs. The image here might give you a greater sense of the sensor sizing in the WG-3 and A7c.

As you can plainly see, both of those cameras have got different megapixel count and different sensor dimensions. The WG-3 with its tinier sensor is going to make shooting shallower depth of field more challenging and the Sony A7c will give you more detail because of its extra 8 Megapixels. Greater resolution will also allow you to crop images much more aggressively. The more aged WG-3 is going to be behind in sensor innovation.