Sony A7R III vs Sony A6400

Its time to look closer at the Sony A7R III vs Sony A6400, former is a Pro Mirrorless while the other is a Advanced Mirrorless and both of them are designed by Sony. There exists a sizable gap among the resolutions of the A7R III (42MP) and A6400 (24MP) and the A7R III (Full frame) and A6400 (APS-C) boast totally different sensor measurements.

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The A7R III was brought out 14 months prior to the A6400 making them a generation away from one another. Both cameras feature different body design with the Sony A7R III being a SLR-style mirrorless camera and the Sony A6400 being a Rangefinder-style mirrorless camera.

Before getting right into a detailed comparison, here is a brief synopsis of how the A7R III matches up versus the A6400 with regards to portability, imaging, features and an overall score.

Below is a sample of the gallery pics for Sony Alpha A7R III & Sony Alpha a6400. The entire galleries are provided at Sony A7R III Gallery & Sony A6400 Gallery.

In case you're aiming to carry around your camera often, you're going to have to factor its weight and volume. The Sony A7R III enjoys outside measurements of 127mm x 96mm x 74mm (5.0" x 3.8" x 2.9") with a weight of 657 grams (1.45 lbs) whilst the Sony A6400 has sizing of 120mm x 67mm x 50mm (4.7" x 2.6" x 2.0") along with a weight of 403 grams (0.89 lbs).

Check the Sony A7R III vs Sony A6400 in our brand new Camera plus Lens Size Comparison Tool.

Do not forget, the weight of an ILC will vary dependant on the lens you have chosen at that time. Here is a front view measurements comparison of the A7R III and the A6400.

Considering dimensions and weight, the portability score of the A7R III and A6400 is 63 and 83 respectively.

More often than not, it can be hard to visualise the difference in sensor sizes purely by researching specs. The picture here will help give you a more clear sense of the sensor sizing in the A7R III and A6400.

As you can plainly see, both of the cameras feature different resolutions and different sensor sizes. The A7R III featuring a larger sensor will make getting shallow depth of field simpler and the Sony A7R III will provide you with extra detail having its extra 18 Megapixels. Greater resolution will also make it easier to crop photos way more aggressively. The more aged A7R III will be disadvantaged when it comes to sensor tech.