Samsung ST30 vs Sony A7S III

The following is a extensive comparison of the Samsung ST30 versus Sony A7S III, one is a Ultracompact and the latter is a Pro Mirrorless by competitors Samsung and Sony. The sensor resolution of the ST30 (10MP) and the A7S III (12MP) is relatively close but the ST30 (1/3") and A7S III (Full frame) use different sensor size.

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The ST30 was announced 10 years before the A7S III which is a fairly significant gap as far as camera tech is concerned. Each of these cameras come with different body type with the Samsung ST30 being a Ultracompact camera and the Sony A7S III being a SLR-style mirrorless camera.

Before diving in to a step-by-step comparison, below is a simple introduction of how the ST30 grades versus the A7S III with respect to portability, imaging, features and an overall mark.

Here is a preview of the gallery photos for Samsung ST30 and Sony Alpha A7S III. The whole galleries are viewable at Samsung ST30 Gallery and Sony A7S III Gallery.

For anyone who is looking to travel with your camera regularly, you'll need to take into account its weight and size. The Samsung ST30 offers outside measurements of 82mm x 52mm x 17mm (3.2" x 2.0" x 0.7") accompanied by a weight of 87 grams (0.19 lbs) whilst the Sony A7S III has specifications of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") having a weight of 699 grams (1.54 lbs).

See the Samsung ST30 versus Sony A7S III in the new Camera with Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will vary dependant on the lens you have during that time. Following is the front view overall size comparison of the ST30 against the A7S III.

Using size and weight, the portability score of the ST30 and A7S III is 98 and 61 respectively.

Usually, it is difficult to visualize the contrast in sensor dimensions purely by viewing specs. The image here will help offer you a more clear sense of the sensor measurements in the ST30 and A7S III.

All in all, each of the cameras have got different megapixel count and different sensor dimensions. The ST30 having a smaller sensor is going to make getting shallower DOF trickier and the Sony A7S III will provide you with extra detail with its extra 2MP. Higher resolution can also make it easier to crop pictures much more aggressively. The more aged ST30 will be behind when it comes to sensor tech.