Samsung ST100 vs Sony A7R III

Below is a detailed comparison of the Samsung ST100 vs Sony A7R III, one being a Ultracompact and the other is a Pro Mirrorless by manufacturers Samsung and Sony. There is a huge difference among the sensor resolutions of the ST100 (14MP) and A7R III (42MP) and the ST100 (1/2.3") and A7R III (Full frame) posses different sensor sizes.

Photography Glossary

The ST100 was launched 8 years prior to the A7R III and that is a fairly significant gap as far as camera tech is concerned. The two cameras feature different body design with the Samsung ST100 being a Ultracompact camera and the Sony A7R III being a SLR-style mirrorless camera.

Before diving straight to a in-depth comparison, here is a concise introduction of how the ST100 scores vs the A7R III with regards to portability, imaging, features and an overall grade.

Here is a sample of the gallery pictures for Samsung ST100 and Sony Alpha A7R III. The complete galleries are provided at Samsung ST100 Gallery and Sony A7R III Gallery.

For anyone who is looking to lug around your camera regularly, you have to think about its weight and proportions. The Samsung ST100 provides outside dimensions of 100mm x 60mm x 20mm (3.9" x 2.4" x 0.8") accompanied by a weight of 155 grams (0.34 lbs) and the Sony A7R III has measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 657 grams (1.45 lbs).

Compare the Samsung ST100 vs Sony A7R III in the all new Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you are utilising at that time. Below is a front view measurement comparison of the ST100 against the A7R III.

Taking into consideration size and weight, the portability grade of the ST100 and A7R III is 95 and 63 respectively.

In many cases, it is hard to picture the gap in sensor measurements only by looking through a spec sheet. The visual here may give you a clearer sense of the sensor dimensions in the ST100 and A7R III.

As you can see, both the cameras feature different megapixel count and different sensor measurements. The ST100 due to its smaller sensor is going to make shooting shallower DOF harder and the Sony A7R III will provide you with extra detail utilizing its extra 28MP. Greater resolution will also let you crop photos way more aggressively. The older ST100 will be disadvantaged when it comes to sensor tech.