Sony NEX-3 vs Sony A6400

In this write-up, we will be matching up the Sony NEX-3 vs Sony A6400, one is a Entry-Level Mirrorless and the latter is a Advanced Mirrorless and both are designed by Sony. There is a crucial difference between the resolutions of the NEX-3 (14MP) and A6400 (24MP) but they come with the same exact sensor measurements (APS-C).

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The NEX-3 was manufactured 9 years prior to the A6400 which is quite a serious gap as far as tech is concerned. Both cameras offer the identical body type (Rangefinder-style mirrorless).

Before we go through a comprehensive comparison, below is a short overview of how the NEX-3 grades against the A6400 for portability, imaging, features and an overall score.

Here is a preview of the gallery images for Sony Alpha NEX-3 and Sony Alpha a6400. The entire galleries are viewable at Sony NEX-3 Gallery and Sony A6400 Gallery.

If you're aiming to carry around your camera frequently, you're going to have to think about its weight and dimensions. The Sony NEX-3 provides external measurements of 117mm x 62mm x 33mm (4.6" x 2.4" x 1.3") accompanied by a weight of 297 grams (0.65 lbs) while the Sony A6400 has dimensions of 120mm x 67mm x 50mm (4.7" x 2.6" x 2.0") having a weight of 403 grams (0.89 lbs).

Contrast the Sony NEX-3 vs Sony A6400 in the latest Camera and Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will vary based on the lens you are employing at that moment. Below is the front view dimensions comparison of the NEX-3 vs the A6400.

Factoring in size and weight, the portability rating of the NEX-3 and A6400 is 89 and 83 respectively.

Often, it is very difficult to envision the gap between sensor sizes merely by looking at technical specs. The pic below may give you a better sense of the sensor sizing in the NEX-3 and A6400.

As you can tell, both of those cameras enjoy the same exact sensor sizing albeit not the same MP. You should expect the Sony A6400 to resolve extra detail due to its extra 10 Megapixels. Higher resolution will enable you to crop photographs far more aggressively. The more aged NEX-3 is going to be behind in sensor innovation.