Olympus TG-830 iHS vs Sony A7R III

Here is a complete review of the Olympus TG-830 iHS vs Sony A7R III, one being a Waterproof and the other is a Pro Mirrorless by companies Olympus and Sony. There is a huge difference among the image resolutions of the TG-830 iHS (16MP) and A7R III (42MP) and the TG-830 iHS (1/2.3") and A7R III (Full frame) use different sensor size.

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The TG-830 iHS was introduced 5 years prior to the A7R III and that is a fairly significant gap as far as camera tech is concerned. Both the cameras come with different body type with the Olympus TG-830 iHS being a Compact camera and the Sony A7R III being a SLR-style mirrorless camera.

Before getting straight into a detailed comparison, below is a simple highlight of how the TG-830 iHS scores vs the A7R III in terms of portability, imaging, features and an overall rating.

The following is a sample of the gallery pics for Olympus TG-830 iHS and Sony Alpha A7R III. The whole galleries are available at Olympus TG-830 iHS Gallery and Sony A7R III Gallery.

In case you're intending to carry your camera, you're going to have to factor its weight and size. The Olympus TG-830 iHS features outer measurements of 109mm x 67mm x 28mm (4.3" x 2.6" x 1.1") having a weight of 214 grams (0.47 lbs) while the Sony A7R III has specifications of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") along with a weight of 657 grams (1.45 lbs).

Check out the Olympus TG-830 iHS vs Sony A7R III in the new Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will vary dependant on the lens you have chosen at that time. The following is the front view dimension comparison of the TG-830 iHS vs the A7R III.

Taking into account size and weight, the portability grade of the TG-830 iHS and A7R III is 91 and 63 respectively.

Usually, it's difficult to picture the gap in sensor sizing only by researching a spec sheet. The visual below will give you a far better sense of the sensor sizing in the TG-830 iHS and A7R III.

Clearly, both the cameras posses different megapixels and different sensor sizing. The TG-830 iHS having a smaller sensor is going to make achieving shallower depth of field harder and the Sony A7R III will provide you with greater detail using its extra 26 Megapixels. Greater resolution can also make it easier to crop pics somewhat more aggressively. The older TG-830 iHS will be disadvantaged when it comes to sensor technology.