Pentax K-5 II vs Sony RX100 III

Here is a detailed analysis of the Pentax K-5 II and Sony RX100 III, former being a Advanced DSLR while the latter is a Large Sensor Compact by brands Pentax and Sony. The sensor resolution of the K-5 II (16MP) and the RX100 III (20MP) is relatively well matched but the K-5 II (APS-C) and RX100 III (1") possess different sensor size.

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The K-5 II was manufactured 11 months before the RX100 III so they are both of a similar age. Each of these cameras come with different body type with the Pentax K-5 II being a Mid-size SLR camera and the Sony RX100 III being a Large Sensor Compact camera.

Before diving in to a more detailed comparison, below is a simple view of how the K-5 II grades against the RX100 III for portability, imaging, features and an overall rating.

Following is a preview of the gallery photos for Pentax K-5 II & Sony Cyber-shot DSC-RX100 III. The entire galleries are available at Pentax K-5 II Gallery & Sony RX100 III Gallery.

When you are going to carry your camera often, you'll have to take into account its weight and volume. The Pentax K-5 II provides physical dimensions of 131mm x 97mm x 73mm (5.2" x 3.8" x 2.9") accompanied by a weight of 760 grams (1.68 lbs) and the Sony RX100 III has sizing of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") having a weight of 290 grams (0.64 lbs).

See the Pentax K-5 II and Sony RX100 III in our completely new Camera & Lens Size Comparison Tool.

Remember that, the weight of an ILC will differ dependant on the lens you use at the time. Here is the front view dimensions comparison of the K-5 II vs the RX100 III.

Considering dimensions and weight, the portability grade of the K-5 II and RX100 III is 60 and 89 respectively.

Typically, its difficult to imagine the contrast between sensor sizing purely by looking at technical specs. The graphic underneath will help offer you a more clear sense of the sensor dimensions in the K-5 II and RX100 III.

As you can tell, both of the cameras have got different megapixel count and different sensor sizing. The K-5 II because of its bigger sensor is going to make shooting shallower depth of field simpler and the Sony RX100 III will give you greater detail due to its extra 4MP. Higher resolution will also allow you to crop pictures much more aggressively. The older K-5 II is going to be disadvantaged when it comes to sensor tech.