Olympus SZ-15 vs Sony A7 III

On this page, we are analyzing the Olympus SZ-15 vs Sony A7 III, one is a Small Sensor Superzoom and the other is a Pro Mirrorless by companies Olympus and Sony. There exists a huge gap between the sensor resolutions of the SZ-15 (16MP) and A7 III (24MP) and the SZ-15 (1/2.3") and A7 III (Full frame) provide totally different sensor measurements.

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The SZ-15 was released 5 years earlier than the A7 III which is quite a significant gap as far as technology is concerned. Each of the cameras have different body design with the Olympus SZ-15 being a Compact camera and the Sony A7 III being a SLR-style mirrorless camera.

Before diving into a more detailed comparison, here is a short summary of how the SZ-15 grades versus the A7 III with respect to portability, imaging, features and an overall mark.

Following is a sample of the gallery pictures for Olympus SZ-15 and Sony Alpha A7 III. The complete galleries are available at Olympus SZ-15 Gallery and Sony A7 III Gallery.

When you are looking to travel with your camera, you have to factor in its weight and proportions. The Olympus SZ-15 has external dimensions of 108mm x 70mm x 40mm (4.3" x 2.8" x 1.6") having a weight of 250 grams (0.55 lbs) while the Sony A7 III has measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") having a weight of 650 grams (1.43 lbs).

Look at the Olympus SZ-15 vs Sony A7 III in the latest Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are using during that time. The following is a front view measurement comparison of the SZ-15 versus the A7 III.

Factoring in dimensions and weight, the portability score of the SZ-15 and A7 III is 88 and 63 respectively.

More often than not, its tough to envision the contrast between sensor dimensions simply by looking at a spec sheet. The image here might offer you a more clear sense of the sensor sizes in the SZ-15 and A7 III.

Clearly, both of those cameras provide different megapixel count and different sensor dimensions. The SZ-15 because of its tinier sensor will make getting shallower depth of field harder and the Sony A7 III will resolve greater detail as a result of its extra 8MP. Greater resolution will also allow you to crop images more aggressively. The more aged SZ-15 is going to be disadvantaged in sensor technology.