Pentax K-x vs Sony RX100

Lets take a more detailed look at the Pentax K-x versus Sony RX100, one being a Entry-Level DSLR and the latter is a Large Sensor Compact by competitors Pentax and Sony. There is a crucial difference among the resolutions of the K-x (12MP) and RX100 (20MP) and the K-x (APS-C) and RX100 (1") come with totally different sensor size.

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The K-x was manufactured 3 years before the RX100 and that is a fairly serious gap as far as camera tech is concerned. Both of these cameras offer different body type with the Pentax K-x being a Compact SLR camera and the Sony RX100 being a Large Sensor Compact camera.

Before delving in to a in depth comparison, below is a simple introduction of how the K-x scores vs the RX100 with regards to portability, imaging, features and an overall rating.

The following is a preview of the gallery images for Pentax K-x and Sony Cyber-shot DSC-RX100. The entire galleries are viewable at Pentax K-x Gallery and Sony RX100 Gallery.

In case you're aiming to carry your camera frequently, you need to think about its weight and dimensions. The Pentax K-x has outer measurements of 123mm x 92mm x 68mm (4.8" x 3.6" x 2.7") accompanied by a weight of 580 grams (1.28 lbs) and the Sony RX100 has dimensions of 102mm x 58mm x 36mm (4.0" x 2.3" x 1.4") and a weight of 240 grams (0.53 lbs).

Check the Pentax K-x versus Sony RX100 in the all new Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will vary depending on the lens you use during that time. Here is the front view sizing comparison of the K-x versus the RX100.

Looking at size and weight, the portability score of the K-x and RX100 is 69 and 91 respectively.

Usually, it is very difficult to see the contrast in sensor sizing just by viewing a spec sheet. The visual here may offer you a clearer sense of the sensor measurements in the K-x and RX100.

Clearly, both cameras offer different megapixel count and different sensor sizing. The K-x due to its bigger sensor will make shooting bokeh simpler and the Sony RX100 will render more detail due to its extra 8MP. Higher resolution can also allow you to crop pictures a little more aggressively. The older K-x will be disadvantaged with regard to sensor tech.