Olympus SP-820UZ vs Sony A7R III

The following is a detailed overview of the Olympus SP-820UZ versus Sony A7R III, former is a Small Sensor Superzoom while the other is a Pro Mirrorless by rivals Olympus and Sony. There exists a noticeable gap among the image resolutions of the SP-820UZ (14MP) and A7R III (42MP) and the SP-820UZ (1/2.3") and A7R III (Full frame) have different sensor sizes.

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The SP-820UZ was unveiled 6 years prior to the A7R III which is a fairly sizable difference as far as camera technology is concerned. The two cameras have different body design with the Olympus SP-820UZ being a Compact camera and the Sony A7R III being a SLR-style mirrorless camera.

Before delving into a complete comparison, here is a quick view of how the SP-820UZ scores against the A7R III in terms of portability, imaging, features and an overall mark.

The following is a sample of the gallery pictures for Olympus Stylus SP-820UZ & Sony Alpha A7R III. The full galleries are provided at Olympus SP-820UZ Gallery & Sony A7R III Gallery.

When you are aiming to travel with your camera frequently, you need to consider its weight and size. The Olympus SP-820UZ provides physical dimensions of 117mm x 78mm x 93mm (4.6" x 3.1" x 3.7") accompanied by a weight of 485 grams (1.07 lbs) and the Sony A7R III has specifications of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 657 grams (1.45 lbs).

Analyze the Olympus SP-820UZ versus Sony A7R III in our newest Camera plus Lens Size Comparison Tool.

Take into account, the weight of an ILC will differ based on the lens you have chosen at that time. Here is a front view measurements comparison of the SP-820UZ and the A7R III.

Using dimensions and weight, the portability score of the SP-820UZ and A7R III is 69 and 63 respectively.

Quite often, its hard to visualize the difference in sensor dimensions purely by looking through specifications. The picture below might give you a better sense of the sensor dimensions in the SP-820UZ and A7R III.

Plainly, each of these cameras have different megapixels and different sensor dimensions. The SP-820UZ with its smaller sensor is going to make shooting bokeh more difficult and the Sony A7R III will result in greater detail having an extra 28MP. Greater resolution will help you crop images a bit more aggressively. The more aged SP-820UZ will be disadvantaged when it comes to sensor technology.