Sony A7 vs Sony S2100

On this page, we will be matching up the Sony A7 and Sony S2100, one is a Pro Mirrorless and the latter is a Small Sensor Compact and both of them are sold by Sony. There is a sizeable difference among the resolutions of the A7 (24MP) and S2100 (12MP) and the A7 (Full frame) and S2100 (1/2.3") have totally different sensor sizing.

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The A7 was manufactured 4 years after the S2100 which is a fairly large gap as far as camera tech is concerned. Both of these cameras have different body design with the Sony A7 being a SLR-style mirrorless camera and the Sony S2100 being a Compact camera.

Before getting straight to a comprehensive comparison, here is a simple highlight of how the A7 scores versus the S2100 with respect to portability, imaging, features and an overall mark.

This is a preview of the gallery photos for Sony Alpha A7 and Sony Cyber-shot DSC-S2100. The entire galleries are available at Sony A7 Gallery and Sony S2100 Gallery.

For those who are aiming to travel with your camera regularly, you need to take into account its weight and volume. The Sony A7 comes with outside dimensions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") accompanied by a weight of 474 grams (1.04 lbs) while the Sony S2100 has sizing of 98mm x 61mm x 27mm (3.9" x 2.4" x 1.1") accompanied by a weight of 167 grams (0.37 lbs).

Look at the Sony A7 and Sony S2100 in the all new Camera with Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will change depending on the lens you have attached at that time. Below is a front view physical size comparison of the A7 against the S2100.

Looking at size and weight, the portability rating of the A7 and S2100 is 78 and 93 respectively.

In many cases, its hard to see the contrast in sensor dimensions purely by checking out specifications. The picture here might offer you a more clear sense of the sensor sizes in the A7 and S2100.

Plainly, both cameras have different resolutions and different sensor dimensions. The A7 due to its bigger sensor will make achieving shallower depth of field simpler and the Sony A7 will provide extra detail due to its extra 12 Megapixels. Higher resolution can also allow you to crop pictures a bit more aggressively. The newer A7 will have a benefit in sensor technology.