Pentax RZ18 vs Sony RX100 IV

Following is a comprehensive assessment of the Pentax RZ18 and Sony RX100 IV, former is a Small Sensor Superzoom while the other is a Large Sensor Compact by brands Pentax and Sony. The sensor resolution of the RZ18 (16MP) and the RX100 IV (20MP) is very close but the RZ18 (1/2.3") and RX100 IV (1") enjoy different sensor sizes.

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The RZ18 was launched 4 years before the RX100 IV which is a fairly serious difference as far as camera technology is concerned. Both the cameras offer different body type with the Pentax RZ18 being a Compact camera and the Sony RX100 IV being a Large Sensor Compact camera.

Before getting through a complete comparison, below is a concise synopsis of how the RZ18 grades vs the RX100 IV in terms of portability, imaging, features and an overall score.

This is a sample of the gallery pics for Pentax Optio RZ18 & Sony Cyber-shot DSC-RX100 IV. The complete galleries are provided at Pentax RZ18 Gallery & Sony RX100 IV Gallery.

For those who are looking to carry around your camera frequently, you're going to have to factor its weight and volume. The Pentax RZ18 features outside dimensions of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") accompanied by a weight of 178 grams (0.39 lbs) while the Sony RX100 IV has sizing of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") having a weight of 298 grams (0.66 lbs).

See the Pentax RZ18 and Sony RX100 IV in our brand new Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will change depending on the lens you are using during that time. Here is the front view measurements comparison of the RZ18 compared to the RX100 IV.

Looking at dimensions and weight, the portability grade of the RZ18 and RX100 IV is 92 and 89 respectively.

More often than not, it's hard to imagine the gap in sensor sizes merely by viewing a spec sheet. The picture underneath will provide you a far better sense of the sensor dimensions in the RZ18 and RX100 IV.

Clearly, each of these cameras enjoy different resolutions and different sensor sizes. The RZ18 featuring a smaller sensor is going to make getting shallower DOF more challenging and the Sony RX100 IV will render greater detail utilizing its extra 4 Megapixels. Greater resolution can also enable you to crop pics far more aggressively. The more aged RZ18 will be behind in sensor innovation.