Olympus E-M1 III vs Sony RX10 IV

Here, we will be contrasting the Olympus E-M1 III and Sony RX10 IV, one being a Pro Mirrorless and the latter is a Large Sensor Superzoom by manufacturers Olympus and Sony. The image resolution of the E-M1 III (20MP) and the RX10 IV (20MP) is relatively close but the E-M1 III (Four Thirds) and RX10 IV (1") boast different sensor size.

Photography Glossary

The E-M1 III was unveiled 2 years later than the RX10 IV and that is a fairly significant gap as far as camera technology is concerned. Both cameras feature different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Sony RX10 IV being a SLR-like (bridge) camera.

Before we go right into a more detailed comparison, here is a quick view of how the E-M1 III matches up vs the RX10 IV when considering portability, imaging, features and an overall rating.

This is a preview of the gallery photos for Olympus OM-D E-M1 Mark III and Sony Cyber-shot DSC-RX10 IV. The full galleries are provided at Olympus E-M1 III Gallery and Sony RX10 IV Gallery.

If you're going to carry your camera, you are going to need to consider its weight and dimensions. The Olympus E-M1 III has outer dimensions of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") with a weight of 580 grams (1.28 lbs) whilst the Sony RX10 IV has dimensions of 133mm x 94mm x 145mm (5.2" x 3.7" x 5.7") and a weight of 1095 grams (2.41 lbs).

Take a look at the Olympus E-M1 III and Sony RX10 IV in the all new Camera with Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will differ dependant on the lens you choose at that moment. Below is a front view measurements comparison of the E-M1 III compared to the RX10 IV.

Factoring in dimensions and weight, the portability grade of the E-M1 III and RX10 IV is 67 and 52 respectively.

Typically, it can be hard to picture the difference in sensor sizing just by viewing a spec sheet. The graphic here should provide you a greater sense of the sensor dimensions in the E-M1 III and RX10 IV.

Clearly, each of these cameras come with the identical megapixel count albeit different sensor sizing. The E-M1 III features the bigger sensor which should make achieving shallower depth of field simpler. The fresher E-M1 III provides a benefit in sensor innovation.