Olympus E-M1 III vs Sony RX100 IV

Let's take a closer look at the Olympus E-M1 III vs Sony RX100 IV, one is a Pro Mirrorless and the other is a Large Sensor Compact by brands Olympus and Sony. The sensor resolution of the E-M1 III (20MP) and the RX100 IV (20MP) is very well matched but the E-M1 III (Four Thirds) and RX100 IV (1") have totally different sensor sizes.

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The E-M1 III was unveiled 4 years after the RX100 IV which is quite a big gap as far as tech is concerned. Both the cameras feature different body design with the Olympus E-M1 III being a SLR-style mirrorless camera and the Sony RX100 IV being a Large Sensor Compact camera.

Before diving straight to a more detailed comparison, here is a brief highlight of how the E-M1 III matches up against the RX100 IV in relation to portability, imaging, features and an overall mark.

Below is a sample of the gallery pics for Olympus OM-D E-M1 Mark III and Sony Cyber-shot DSC-RX100 IV. The full galleries are viewable at Olympus E-M1 III Gallery and Sony RX100 IV Gallery.

For anybody who is planning to travel with your camera, you need to consider its weight and size. The Olympus E-M1 III comes with exterior measurements of 134mm x 91mm x 69mm (5.3" x 3.6" x 2.7") and a weight of 580 grams (1.28 lbs) whilst the Sony RX100 IV has specifications of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") accompanied by a weight of 298 grams (0.66 lbs).

Look at the Olympus E-M1 III vs Sony RX100 IV in the new Camera and Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will vary dependant on the lens you use during that time. Following is a front view physical size comparison of the E-M1 III against the RX100 IV.

Using size and weight, the portability score of the E-M1 III and RX100 IV is 67 and 89 respectively.

In many cases, its difficult to see the difference between sensor dimensions only by looking at specifications. The pic underneath might give you a more clear sense of the sensor measurements in the E-M1 III and RX100 IV.

Plainly, both the cameras feature the identical MP but not the same sensor dimensions. The E-M1 III has got the larger sensor which should make getting shallower DOF less difficult. The newer E-M1 III will have an edge when it comes to sensor innovation.