Pentax VS20 vs Sony A6400

On this page, we will be reviewing the Pentax VS20 vs Sony A6400, one being a Small Sensor Superzoom and the latter is a Advanced Mirrorless by companies Pentax and Sony. There is a crucial difference between the image resolutions of the VS20 (16MP) and A6400 (24MP) and the VS20 (1/2.3") and A6400 (APS-C) boast different sensor sizing.

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The VS20 was unveiled 8 years before the A6400 and that is quite a serious gap as far as tech is concerned. Both the cameras have different body design with the Pentax VS20 being a Compact camera and the Sony A6400 being a Rangefinder-style mirrorless camera.

Before getting right into a more detailed comparison, here is a short synopsis of how the VS20 matches up vs the A6400 with respect to portability, imaging, features and an overall grade.

The following is a preview of the gallery photos for Pentax Optio VS20 and Sony Alpha a6400. The full galleries are viewable at Pentax VS20 Gallery and Sony A6400 Gallery.

For those who are going to lug around your camera often, you should factor in its weight and dimensions. The Pentax VS20 enjoys external dimensions of 111mm x 61mm x 38mm (4.4" x 2.4" x 1.5") along with a weight of 235 grams (0.52 lbs) and the Sony A6400 has dimensions of 120mm x 67mm x 50mm (4.7" x 2.6" x 2.0") with a weight of 403 grams (0.89 lbs).

See the Pentax VS20 vs Sony A6400 in the all new Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will vary based on the lens you choose at that time. Following is a front view dimension comparison of the VS20 versus the A6400.

Looking at size and weight, the portability score of the VS20 and A6400 is 90 and 83 respectively.

Often, it can be tough to visualize the difference between sensor measurements simply by reading a spec sheet. The graphic underneath will help offer you a much better sense of the sensor dimensions in the VS20 and A6400.

As you can see, both of these cameras provide different megapixels and different sensor measurements. The VS20 using its tinier sensor is going to make shooting bokeh tougher and the Sony A6400 will deliver extra detail having an extra 8 Megapixels. Higher resolution can also enable you to crop shots more aggressively. The older VS20 is going to be disadvantaged with regard to sensor tech.