Pentax RZ18 vs Sony RX10 III

Below is a complete review of the Pentax RZ18 and Sony RX10 III, former being a Small Sensor Superzoom while the other is a Large Sensor Superzoom by brands Pentax and Sony. The image resolution of the RZ18 (16MP) and the RX10 III (20MP) is very similar but the RZ18 (1/2.3") and RX10 III (1") offer different sensor dimensions.

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The RZ18 was launched 5 years prior to the RX10 III and that is quite a large difference as far as tech is concerned. Both the cameras have different body design with the Pentax RZ18 being a Compact camera and the Sony RX10 III being a SLR-like (bridge) camera.

Before getting right into a detailed comparison, here is a brief summary of how the RZ18 grades versus the RX10 III in the way of portability, imaging, features and an overall grade.

Below is a sample of the gallery pics for Pentax Optio RZ18 & Sony Cyber-shot DSC-RX10 III. The complete galleries are provided at Pentax RZ18 Gallery & Sony RX10 III Gallery.

When you are going to lug around your camera often, you're going to have to factor its weight and size. The Pentax RZ18 features outer measurements of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") having a weight of 178 grams (0.39 lbs) while the Sony RX10 III has specifications of 133mm x 94mm x 127mm (5.2" x 3.7" x 5.0") accompanied by a weight of 1051 grams (2.32 lbs).

Contrast the Pentax RZ18 and Sony RX10 III in our completely new Camera plus Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will change depending on the lens you are utilising at the time. Following is a front view sizing comparison of the RZ18 and the RX10 III.

Taking into consideration size and weight, the portability grade of the RZ18 and RX10 III is 92 and 53 respectively.

In many cases, it is very tough to visualize the gap between sensor measurements purely by going over a spec sheet. The photograph here should offer you a more clear sense of the sensor measurements in the RZ18 and RX10 III.

As you can see, both cameras provide different megapixels and different sensor measurements. The RZ18 featuring a tinier sensor is going to make achieving shallower depth of field tougher and the Sony RX10 III will offer you more detail utilizing its extra 4 Megapixels. Greater resolution can also make it easier to crop pics more aggressively. The older RZ18 is going to be disadvantaged when it comes to sensor tech.