Olympus E-M10 IV vs Pentax RZ18

On this page, we will be reviewing the Olympus E-M10 IV and Pentax RZ18, one is a Entry-Level Mirrorless and the latter is a Small Sensor Superzoom by competitors Olympus and Pentax. There is a significant difference among the resolutions of the E-M10 IV (20MP) and RZ18 (16MP) and the E-M10 IV (Four Thirds) and RZ18 (1/2.3") provide totally different sensor sizes.

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The E-M10 IV was brought out 9 years after the RZ18 which is a fairly sizable gap as far as camera tech is concerned. Both cameras have different body design with the Olympus E-M10 IV being a SLR-style mirrorless camera and the Pentax RZ18 being a Compact camera.

Before diving straight to a full comparison, here is a quick introduction of how the E-M10 IV scores against the RZ18 for portability, imaging, features and an overall score.

Following is a preview of the gallery photos for Olympus OM-D E-M10 IV and Pentax Optio RZ18. The entire galleries are provided at Olympus E-M10 IV Gallery and Pentax RZ18 Gallery.

For anybody who is looking to carry around your camera often, you'll have to factor its weight and proportions. The Olympus E-M10 IV has physical measurements of 122mm x 84mm x 49mm (4.8" x 3.3" x 1.9") along with a weight of 383 grams (0.84 lbs) while the Pentax RZ18 has measurements of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") accompanied by a weight of 178 grams (0.39 lbs).

Compare the Olympus E-M10 IV and Pentax RZ18 in the new Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will differ dependant on the lens you have attached at the time. Below is a front view over all size comparison of the E-M10 IV compared to the RZ18.

Considering size and weight, the portability grade of the E-M10 IV and RZ18 is 81 and 92 respectively.

Often, it is very tough to see the contrast in sensor sizes simply by researching technical specs. The image below will offer you a better sense of the sensor measurements in the E-M10 IV and RZ18.

As you have seen, each of these cameras have different resolutions and different sensor sizes. The E-M10 IV featuring a bigger sensor will make shooting shallower DOF simpler and the Olympus E-M10 IV will result in extra detail having its extra 4MP. Higher resolution can also help you crop pictures a bit more aggressively. The fresher E-M10 IV will have an advantage in sensor innovation.