Pentax RS1500 vs Sony A6400

Below is a extensive review of the Pentax RS1500 and Sony A6400, one being a Small Sensor Compact and the latter is a Advanced Mirrorless by rivals Pentax and Sony. There exists a huge gap between the sensor resolutions of the RS1500 (14MP) and A6400 (24MP) and the RS1500 (1/2.3") and A6400 (APS-C) provide different sensor sizing.

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The RS1500 was introduced 8 years prior to the A6400 and that is quite a significant gap as far as technology is concerned. Both cameras feature different body design with the Pentax RS1500 being a Compact camera and the Sony A6400 being a Rangefinder-style mirrorless camera.

Before delving straight to a complete comparison, here is a quick summation of how the RS1500 scores vs the A6400 in terms of portability, imaging, features and an overall grade.

Following is a preview of the gallery images for Pentax Optio RS1500 and Sony Alpha a6400. The whole galleries are available at Pentax RS1500 Gallery and Sony A6400 Gallery.

When you are intending to lug around your camera regularly, you'll have to factor its weight and proportions. The Pentax RS1500 has got outside dimensions of 114mm x 58mm x 28mm (4.5" x 2.3" x 1.1") accompanied by a weight of 157 grams (0.35 lbs) while the Sony A6400 has measurements of 120mm x 67mm x 50mm (4.7" x 2.6" x 2.0") along with a weight of 403 grams (0.89 lbs).

See the Pentax RS1500 and Sony A6400 in the latest Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will change based on the lens you select during that time. Following is a front view dimension comparison of the RS1500 against the A6400.

Taking into account dimensions and weight, the portability grade of the RS1500 and A6400 is 93 and 83 respectively.

Typically, it is very difficult to imagine the contrast between sensor measurements just by reading through a spec sheet. The visual underneath will provide you a far better sense of the sensor dimensions in the RS1500 and A6400.

Clearly, both of these cameras come with different resolutions and different sensor measurements. The RS1500 having a tinier sensor is going to make achieving shallow DOF more difficult and the Sony A6400 will give you more detail using its extra 10MP. Higher resolution can also enable you to crop pictures a good deal more aggressively. The older RS1500 is going to be disadvantaged when it comes to sensor tech.