Olympus TG-870 vs Pentax K-70

The following is a in depth assessment of the Olympus TG-870 and Pentax K-70, one is a Ultracompact and the latter is a Entry-Level DSLR by competitors Olympus and Pentax. There exists a crucial gap between the image resolutions of the TG-870 (16MP) and K-70 (24MP) and the TG-870 (1/2.3") and K-70 (APS-C) boast totally different sensor dimensions.

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The TG-870 was brought out 5 months prior to the K-70 and they are of a similar generation. The two cameras have different body design with the Olympus TG-870 being a Ultracompact camera and the Pentax K-70 being a Compact SLR camera.

Before getting straight to a in depth comparison, here is a concise overview of how the TG-870 matches up vs the K-70 in relation to portability, imaging, features and an overall mark.

Below is a preview of the gallery photos for Olympus Stylus Tough TG-870 and Pentax K-70. The entire galleries are viewable at Olympus TG-870 Gallery and Pentax K-70 Gallery.

For anybody who is going to travel with your camera, you should think about its weight and size. The Olympus TG-870 features physical measurements of 113mm x 64mm x 28mm (4.4" x 2.5" x 1.1") along with a weight of 221 grams (0.49 lbs) and the Pentax K-70 has specifications of 126mm x 93mm x 74mm (5.0" x 3.7" x 2.9") and a weight of 688 grams (1.52 lbs).

Take a look at the Olympus TG-870 and Pentax K-70 in the latest Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will change dependant on the lens you have chosen at that time. The following is a front view proportions comparison of the TG-870 and the K-70.

Looking at dimensions and weight, the portability score of the TG-870 and K-70 is 91 and 62 respectively.

Normally, it is tough to envision the difference between sensor dimensions simply by looking at technical specs. The picture underneath should provide you a stronger sense of the sensor sizing in the TG-870 and K-70.

As you can tell, both of those cameras have different resolutions and different sensor dimensions. The TG-870 due to its tinier sensor will make achieving shallower DOF more challenging and the Pentax K-70 will give more detail having its extra 8MP. Higher resolution will let you crop shots a bit more aggressively.