Sony A7R III vs Sony NEX-3

The following is a complete overview of the Sony A7R III vs Sony NEX-3, one is a Pro Mirrorless and the latter is a Entry-Level Mirrorless and they are both sold by Sony. There is a sizeable difference among the image resolutions of the A7R III (42MP) and NEX-3 (14MP) and the A7R III (Full frame) and NEX-3 (APS-C) have different sensor sizes.

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The A7R III was unveiled 7 years after the NEX-3 which is a fairly large gap as far as camera tech is concerned. Each of the cameras feature different body design with the Sony A7R III being a SLR-style mirrorless camera and the Sony NEX-3 being a Rangefinder-style mirrorless camera.

Before delving straight to a complete comparison, here is a simple synopsis of how the A7R III grades versus the NEX-3 in the way of portability, imaging, features and an overall mark.

Following is a preview of the gallery photos for Sony Alpha A7R III and Sony Alpha NEX-3. The full galleries are provided at Sony A7R III Gallery and Sony NEX-3 Gallery.

If you're aiming to travel with your camera frequently, you'll need to factor its weight and proportions. The Sony A7R III features exterior measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") and a weight of 657 grams (1.45 lbs) and the Sony NEX-3 has measurements of 117mm x 62mm x 33mm (4.6" x 2.4" x 1.3") along with a weight of 297 grams (0.65 lbs).

Check the Sony A7R III vs Sony NEX-3 in the new Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will differ dependant on the lens you are using at that moment. Below is a front view size comparison of the A7R III against the NEX-3.

Considering size and weight, the portability grade of the A7R III and NEX-3 is 63 and 89 respectively.

Often, it's tough to picture the contrast in sensor dimensions just by researching specifications. The picture here might give you a greater sense of the sensor sizing in the A7R III and NEX-3.

To sum up, the two cameras come with different megapixel count and different sensor dimensions. The A7R III with its bigger sensor is going to make shooting shallower depth of field less difficult and the Sony A7R III will result in extra detail having an extra 28MP. Higher resolution will allow you to crop photographs a good deal more aggressively. The newer A7R III should have an edge when it comes to sensor technology.