Olympus TG-860 vs Sony A7 III

Lets look a little more closely at the Olympus TG-860 vs Sony A7 III, one is a Waterproof and the other is a Pro Mirrorless by companies Olympus and Sony. There exists a crucial gap between the resolutions of the TG-860 (16MP) and A7 III (24MP) and the TG-860 (1/2.3") and A7 III (Full frame) posses different sensor sizes.

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The TG-860 was launched 4 years earlier than the A7 III which is quite a serious gap as far as technology is concerned. Each of the cameras have different body design with the Olympus TG-860 being a Ultracompact camera and the Sony A7 III being a SLR-style mirrorless camera.

Before delving right into a step-by-step comparison, here is a quick highlight of how the TG-860 grades vs the A7 III in the way of portability, imaging, features and an overall mark.

Here is a sample of the gallery pictures for Olympus Stylus Tough TG-860 and Sony Alpha A7 III. The complete galleries are provided at Olympus TG-860 Gallery and Sony A7 III Gallery.

If you're looking to travel with your camera, you should think about its weight and dimensions. The Olympus TG-860 comes with outer measurements of 110mm x 64mm x 28mm (4.3" x 2.5" x 1.1") and a weight of 224 grams (0.49 lbs) and the Sony A7 III has dimensions of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") along with a weight of 650 grams (1.43 lbs).

See the Olympus TG-860 vs Sony A7 III in the latest Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will change dependant on the lens you use at that moment. Below is a front view physical size comparison of the TG-860 against the A7 III.

Looking at dimensions and weight, the portability grade of the TG-860 and A7 III is 91 and 63 respectively.

Typically, it is hard to picture the contrast between sensor dimensions purely by reading specifications. The image below should give you a much better sense of the sensor measurements in the TG-860 and A7 III.

To sum up, each of the cameras have different resolutions and different sensor dimensions. The TG-860 featuring a tinier sensor is going to make achieving shallower DOF more difficult and the Sony A7 III will offer you greater detail utilizing its extra 8 Megapixels. Greater resolution can also help you crop photos a bit more aggressively. The more aged TG-860 is going to be behind when it comes to sensor tech.