Olympus TG-320 vs Pentax K-70

On this page, we are evaluating the Olympus TG-320 versus Pentax K-70, one is a Waterproof and the other is a Entry-Level DSLR by competitors Olympus and Pentax. There is a huge difference among the resolutions of the TG-320 (14MP) and K-70 (24MP) and the TG-320 (1/2.3") and K-70 (APS-C) posses different sensor size.

Pentax 17 Pre-Orders Outperform Expectations by a Landslide

The TG-320 was revealed 5 years prior to the K-70 which is a fairly significant gap as far as camera tech is concerned. Both the cameras have different body design with the Olympus TG-320 being a Compact camera and the Pentax K-70 being a Compact SLR camera.

Before diving straight to a step-by-step comparison, here is a concise highlight of how the TG-320 scores versus the K-70 in the way of portability, imaging, features and an overall mark.

Here is a sample of the gallery pics for Olympus TG-320 and Pentax K-70. The full galleries are viewable at Olympus TG-320 Gallery and Pentax K-70 Gallery.

If you are aiming to travel with your camera regularly, you're going to have to factor in its weight and volume. The Olympus TG-320 features outer measurements of 96mm x 63mm x 23mm (3.8" x 2.5" x 0.9") along with a weight of 155 grams (0.34 lbs) and the Pentax K-70 has sizing of 126mm x 93mm x 74mm (5.0" x 3.7" x 2.9") along with a weight of 688 grams (1.52 lbs).

Compare the Olympus TG-320 versus Pentax K-70 in the new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will vary dependant on the lens you choose at that moment. Below is a front view over all size comparison of the TG-320 compared to the K-70.

Factoring in size and weight, the portability rating of the TG-320 and K-70 is 94 and 62 respectively.

In many cases, it is very hard to imagine the gap in sensor dimensions only by looking through a spec sheet. The image below will provide you a better sense of the sensor sizing in the TG-320 and K-70.

As you can see, both of the cameras have different megapixels and different sensor dimensions. The TG-320 having a smaller sensor is going to make getting bokeh more difficult and the Pentax K-70 will render extra detail because of its extra 10MP. Greater resolution will enable you to crop photos a bit more aggressively. The more aged TG-320 will be disadvantaged when it comes to sensor technology.