Olympus SP-800 UZ vs Sony A7R III

Below is a extensive overview of the Olympus SP-800 UZ versus Sony A7R III, former being a Small Sensor Superzoom while the other is a Pro Mirrorless by manufacturers Olympus and Sony. There is a sizable difference between the image resolutions of the SP-800 UZ (14MP) and A7R III (42MP) and the SP-800 UZ (1/2.3") and A7R III (Full frame) possess different sensor sizes.

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The SP-800 UZ was unveiled 8 years prior to the A7R III and that is quite a significant difference as far as tech is concerned. The two cameras offer different body type with the Olympus SP-800 UZ being a Compact camera and the Sony A7R III being a SLR-style mirrorless camera.

Before going through a full comparison, below is a concise synopsis of how the SP-800 UZ grades vs the A7R III with regards to portability, imaging, features and an overall grade.

Below is a sample of the gallery pictures for Olympus SP-800 UZ & Sony Alpha A7R III. The full galleries are viewable at Olympus SP-800 UZ Gallery & Sony A7R III Gallery.

If you're intending to lug around your camera, you need to factor in its weight and size. The Olympus SP-800 UZ offers outer measurements of 110mm x 90mm x 91mm (4.3" x 3.5" x 3.6") along with a weight of 455 grams (1.00 lbs) whilst the Sony A7R III has specifications of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") having a weight of 657 grams (1.45 lbs).

Check the Olympus SP-800 UZ versus Sony A7R III in our completely new Camera plus Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will differ depending on the lens you have chosen at that time. Underneath is the front view overall size comparison of the SP-800 UZ versus the A7R III.

Using size and weight, the portability rating of the SP-800 UZ and A7R III is 69 and 63 respectively.

Oftentimes, it is hard to visualize the gap between sensor measurements just by reading through technical specs. The graphic below will help provide you a better sense of the sensor measurements in the SP-800 UZ and A7R III.

As you have seen, both the cameras enjoy different megapixel count and different sensor measurements. The SP-800 UZ having a tinier sensor is going to make achieving shallower depth of field tougher and the Sony A7R III will give you greater detail having an extra 28 Megapixels. Greater resolution will allow you to crop photos far more aggressively. The older SP-800 UZ is going to be disadvantaged with regard to sensor tech.