Sony A7S III vs Sony NEX-3

Lets examine more in depth at the Sony A7S III versus Sony NEX-3, former being a Pro Mirrorless while the other is a Entry-Level Mirrorless and both of them are designed by Sony. The resolution of the A7S III (12MP) and the NEX-3 (14MP) is very comparable but the A7S III (Full frame) and NEX-3 (APS-C) use totally different sensor dimensions.

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The A7S III was unveiled 10 years later than the NEX-3 and that is a fairly big difference as far as camera tech is concerned. Each of these cameras come with different body type with the Sony A7S III being a SLR-style mirrorless camera and the Sony NEX-3 being a Rangefinder-style mirrorless camera.

Before going straight into a in-depth comparison, below is a short view of how the A7S III matches up against the NEX-3 with regards to portability, imaging, features and an overall grade.

Here is a sample of the gallery pics for Sony Alpha A7S III & Sony Alpha NEX-3. The full galleries are available at Sony A7S III Gallery & Sony NEX-3 Gallery.

In case you're intending to lug around your camera, you will have to consider its weight and measurements. The Sony A7S III features outside dimensions of 129mm x 97mm x 81mm (5.1" x 3.8" x 3.2") and a weight of 699 grams (1.54 lbs) and the Sony NEX-3 has proportions of 117mm x 62mm x 33mm (4.6" x 2.4" x 1.3") and a weight of 297 grams (0.65 lbs).

Check the Sony A7S III versus Sony NEX-3 in our newest Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will differ dependant on the lens you are employing at that time. Underneath is the front view over all size comparison of the A7S III vs the NEX-3.

Factoring in size and weight, the portability score of the A7S III and NEX-3 is 61 and 89 respectively.

Generally, it is hard to see the contrast in sensor measurements just by seeing a spec sheet. The photograph below will help give you a clearer sense of the sensor dimensions in the A7S III and NEX-3.

Clearly, both of these cameras posses different resolutions and different sensor measurements. The A7S III having a larger sensor will make achieving bokeh less difficult and the Sony NEX-3 will produce more detail having an extra 2 Megapixels. Greater resolution can also enable you to crop pics somewhat more aggressively. The fresher A7S III is going to have an edge with regard to sensor technology.