Olympus TG-320 vs Sony A7 III

Its time to look closer at the Olympus TG-320 and Sony A7 III, former is a Waterproof while the latter is a Pro Mirrorless by companies Olympus and Sony. There is a substantial difference among the image resolutions of the TG-320 (14MP) and A7 III (24MP) and the TG-320 (1/2.3") and A7 III (Full frame) offer totally different sensor sizing.

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The TG-320 was launched 7 years before the A7 III which is a fairly big difference as far as camera tech is concerned. Both cameras have different body design with the Olympus TG-320 being a Compact camera and the Sony A7 III being a SLR-style mirrorless camera.

Before diving right into a step-by-step comparison, here is a quick highlight of how the TG-320 scores versus the A7 III with respect to portability, imaging, features and an overall score.

Below is a preview of the gallery photos for Olympus TG-320 & Sony Alpha A7 III. The complete galleries are available at Olympus TG-320 Gallery & Sony A7 III Gallery.

For those who are planning to carry around your camera frequently, you will have to factor its weight and size. The Olympus TG-320 has got physical measurements of 96mm x 63mm x 23mm (3.8" x 2.5" x 0.9") having a weight of 155 grams (0.34 lbs) and the Sony A7 III has specifications of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") having a weight of 650 grams (1.43 lbs).

Examine the Olympus TG-320 and Sony A7 III in our brand new Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will vary dependant on the lens you have at that time. Below is a front view measurements comparison of the TG-320 versus the A7 III.

Considering size and weight, the portability rating of the TG-320 and A7 III is 94 and 63 respectively.

Often, it is very difficult to visualise the difference in sensor sizes only by checking out a spec sheet. The picture underneath should provide you a greater sense of the sensor sizing in the TG-320 and A7 III.

Clearly, the 2 cameras have different megapixel count and different sensor sizes. The TG-320 featuring a smaller sensor will make getting bokeh tougher and the Sony A7 III will show greater detail utilizing its extra 10 Megapixels. Higher resolution will also enable you to crop shots a bit more aggressively. The more aged TG-320 will be disadvantaged in sensor innovation.