Pentax I-10 vs Sony RX100 III

Lets look much closer at the Pentax I-10 vs Sony RX100 III, one being a Small Sensor Compact and the latter is a Large Sensor Compact by rivals Pentax and Sony. There is a big difference among the sensor resolutions of the I-10 (12MP) and RX100 III (20MP) and the I-10 (1/2.3") and RX100 III (1") offer totally different sensor dimensions.

Photography Glossary

The I-10 was manufactured 5 years before the RX100 III and that is a fairly big gap as far as camera tech is concerned. Each of these cameras have different body design with the Pentax I-10 being a Compact camera and the Sony RX100 III being a Large Sensor Compact camera.

Before we go straight to a step-by-step comparison, here is a short overview of how the I-10 scores versus the RX100 III when it comes to portability, imaging, features and an overall grade.

This is a preview of the gallery images for Pentax Optio I-10 and Sony Cyber-shot DSC-RX100 III. The entire galleries are available at Pentax I-10 Gallery and Sony RX100 III Gallery.

For those who are looking to lug around your camera often, you're going to have to consider its weight and proportions. The Pentax I-10 offers exterior dimensions of 101mm x 65mm x 28mm (4.0" x 2.6" x 1.1") accompanied by a weight of 153 grams (0.34 lbs) and the Sony RX100 III has measurements of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") along with a weight of 290 grams (0.64 lbs).

Analyze the Pentax I-10 vs Sony RX100 III in the all new Camera and Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you have at that moment. The following is a front view size comparison of the I-10 compared to the RX100 III.

Factoring in size and weight, the portability score of the I-10 and RX100 III is 93 and 89 respectively.

In many cases, its tough to visualise the difference in sensor measurements only by checking out specifications. The graphic underneath might provide you a clearer sense of the sensor sizes in the I-10 and RX100 III.

To sum up, both cameras have different resolutions and different sensor measurements. The I-10 because of its smaller sensor will make shooting shallow depth of field harder and the Sony RX100 III will show greater detail due to its extra 8MP. Higher resolution will also enable you to crop photographs a bit more aggressively. The older I-10 will be disadvantaged when it comes to sensor technology.