Pentax K-3 II vs Sony RX100 III

Here is a thorough overview of the Pentax K-3 II and Sony RX100 III, former being a Advanced DSLR while the latter is a Large Sensor Compact by rivals Pentax and Sony. The image resolution of the K-3 II (24MP) and the RX100 III (20MP) is pretty comparable but the K-3 II (APS-C) and RX100 III (1") have totally different sensor sizes.

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The K-3 II was released 12 months later than the RX100 III and they are both of a similar age. Each of these cameras have different body design with the Pentax K-3 II being a Mid-size SLR camera and the Sony RX100 III being a Large Sensor Compact camera.

Before getting right into a complete comparison, here is a short highlight of how the K-3 II scores against the RX100 III in relation to portability, imaging, features and an overall rating.

The following is a preview of the gallery images for Pentax K-3 II & Sony Cyber-shot DSC-RX100 III. The complete galleries are available at Pentax K-3 II Gallery & Sony RX100 III Gallery.

If you're intending to carry your camera frequently, you will have to factor its weight and measurements. The Pentax K-3 II comes with external measurements of 131mm x 100mm x 77mm (5.2" x 3.9" x 3.0") having a weight of 800 grams (1.76 lbs) whilst the Sony RX100 III has proportions of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") and a weight of 290 grams (0.64 lbs).

Compare the Pentax K-3 II and Sony RX100 III in our completely new Camera plus Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will vary depending on the lens you are using during that time. The following is a front view scale comparison of the K-3 II vs the RX100 III.

Factoring in size and weight, the portability rating of the K-3 II and RX100 III is 59 and 89 respectively.

Usually, it is very tough to visualise the contrast in sensor sizing just by going through specs. The graphic here will give you a greater sense of the sensor measurements in the K-3 II and RX100 III.

All in all, both of these cameras provide different resolutions and different sensor sizing. The K-3 II due to its bigger sensor will make achieving shallower DOF easier and the Pentax K-3 II will show greater detail as a result of its extra 4 Megapixels. Higher resolution will allow you to crop pictures more aggressively. The more recent K-3 II is going to have an edge when it comes to sensor innovation.