Pentax RZ10 vs Ricoh GR Digital III

Here, we will be comparing the Pentax RZ10 versus Ricoh GR Digital III, both Small Sensor Compact digital cameras by manufacturers Pentax and Ricoh. There is a noticeable difference between the image resolutions of the RZ10 (14MP) and GR Digital III (10MP) and the RZ10 (1/2.3") and GR Digital III (1/1.7") offer totally different sensor dimensions.

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The RZ10 was manufactured 2 years after the GR Digital III which is quite a sizable difference as far as tech is concerned. Both the cameras feature the same body design (Compact).

Before we go into a full comparison, here is a concise synopsis of how the RZ10 matches up against the GR Digital III with regards to portability, imaging, features and an overall score.

Here is a preview of the gallery images for Pentax Optio RZ10 & Ricoh GR Digital III. The entire galleries are provided at Pentax RZ10 Gallery & Ricoh GR Digital III Gallery.

For anyone who is planning to carry around your camera often, you're going to have to consider its weight and proportions. The Pentax RZ10 features outside dimensions of 97mm x 61mm x 33mm (3.8" x 2.4" x 1.3") and a weight of 178 grams (0.39 lbs) and the Ricoh GR Digital III has measurements of 109mm x 59mm x 26mm (4.3" x 2.3" x 1.0") having a weight of 208 grams (0.46 lbs).

Take a look at the Pentax RZ10 versus Ricoh GR Digital III in our brand new Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will vary dependant on the lens you select during that time. Following is a front view dimensions comparison of the RZ10 against the GR Digital III.

Taking into account size and weight, the portability rating of the RZ10 and GR Digital III is 92 and 92 respectively.

Generally, it is hard to visualise the contrast between sensor sizes simply by going over a spec sheet. The picture below will provide you a clearer sense of the sensor dimensions in the RZ10 and GR Digital III.

Clearly, both of these cameras feature different megapixel count and different sensor sizes. The RZ10 featuring a tinier sensor will make getting shallower DOF harder and the Pentax RZ10 will deliver more detail due to its extra 4 Megapixels. Higher resolution can also make it easier to crop photographs way more aggressively. The newer RZ10 is going to have an edge when it comes to sensor technology.