Olympus TG-320 vs Sony A7S III

In this write-up, we will be comparing the Olympus TG-320 versus Sony A7S III, one is a Waterproof and the latter is a Pro Mirrorless by competitors Olympus and Sony. The resolution of the TG-320 (14MP) and the A7S III (12MP) is pretty similar but the TG-320 (1/2.3") and A7S III (Full frame) possess different sensor sizing.

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The TG-320 was brought out 9 years before the A7S III which is quite a significant gap as far as tech is concerned. Both the cameras offer different body type with the Olympus TG-320 being a Compact camera and the Sony A7S III being a SLR-style mirrorless camera.

Before getting straight into a more detailed comparison, below is a concise synopsis of how the TG-320 matches up versus the A7S III in regards to portability, imaging, features and an overall score.

The following is a preview of the gallery images for Olympus TG-320 and Sony Alpha A7S III. The entire galleries are viewable at Olympus TG-320 Gallery and Sony A7S III Gallery.

If you are intending to carry around your camera frequently, you're going to have to factor its weight and size. The Olympus TG-320 has outer dimensions of 96mm x 63mm x 23mm (3.8" x 2.5" x 0.9") accompanied by a weight of 155 grams (0.34 lbs) while the Sony A7S III has specifications of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") accompanied by a weight of 699 grams (1.54 lbs).

Check out the Olympus TG-320 versus Sony A7S III in the all new Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are utilising at that time. Here is the front view dimensions comparison of the TG-320 compared to the A7S III.

Using size and weight, the portability rating of the TG-320 and A7S III is 94 and 61 respectively.

Usually, its hard to visualize the contrast between sensor sizes just by reading a spec sheet. The picture underneath may offer you a clearer sense of the sensor sizes in the TG-320 and A7S III.

As you can see, both the cameras enjoy different resolutions and different sensor sizes. The TG-320 due to its tinier sensor is going to make getting shallow DOF more difficult and the Olympus TG-320 will offer you more detail having its extra 2 Megapixels. Higher resolution will also make it easier to crop shots far more aggressively. The more aged TG-320 is going to be disadvantaged when it comes to sensor innovation.