Pentax X70 vs Sony A7S III

Let's look more closely at the Pentax X70 vs Sony A7S III, former being a Small Sensor Superzoom while the other is a Pro Mirrorless by brands Pentax and Sony. The image resolution of the X70 (12MP) and the A7S III (12MP) is very similar but the X70 (1/2.3") and A7S III (Full frame) posses totally different sensor sizing.

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The X70 was unveiled 12 years before the A7S III and that is quite a big difference as far as tech is concerned. Each of these cameras have different body design with the Pentax X70 being a SLR-like (bridge) camera and the Sony A7S III being a SLR-style mirrorless camera.

Before getting right into a thorough comparison, here is a brief summation of how the X70 scores against the A7S III for portability, imaging, features and an overall rating.

The following is a sample of the gallery pics for Pentax X70 & Sony Alpha A7S III. The full galleries are available at Pentax X70 Gallery & Sony A7S III Gallery.

If you're going to carry your camera often, you need to factor in its weight and size. The Pentax X70 has got outside measurements of 110mm x 83mm x 90mm (4.3" x 3.3" x 3.5") and a weight of 410 grams (0.90 lbs) while the Sony A7S III has specifications of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") with a weight of 699 grams (1.54 lbs).

Check out the Pentax X70 vs Sony A7S III in our brand new Camera & Lens Size Comparison Tool.

Do not forget, the weight of an ILC will change depending on the lens you are using at the time. Here is a front view physical size comparison of the X70 against the A7S III.

Using size and weight, the portability grade of the X70 and A7S III is 71 and 61 respectively.

Oftentimes, it's difficult to envision the contrast between sensor sizing just by going over specs. The graphic below might give you a more clear sense of the sensor measurements in the X70 and A7S III.

All in all, both of those cameras have the same MP but not the same sensor sizing. The X70 includes the tinier sensor which should make obtaining shallow depth of field more challenging. The older X70 is going to be disadvantaged with regard to sensor technology.