Nikon D800 vs Sony A7R IV

Here is a extended comparison of the Nikon D800 and Sony A7R IV, one being a Advanced DSLR and the latter is a Pro Mirrorless by brands Nikon and Sony. There exists a significant gap between the sensor resolutions of the D800 (36MP) and A7R IV (61MP) but both cameras offer the same sensor sizing (Full frame).

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The D800 was brought out 8 years earlier than the A7R IV and that is quite a sizable gap as far as technology is concerned. The two cameras have different body design with the Nikon D800 being a Mid-size SLR camera and the Sony A7R IV being a SLR-style mirrorless camera.

Before getting straight to a step-by-step comparison, here is a simple summary of how the D800 matches up vs the A7R IV in the way of portability, imaging, features and an overall rating.

Below is a preview of the gallery images for Nikon D800 and Sony Alpha A7R IV. The entire galleries are provided at Nikon D800 Gallery and Sony A7R IV Gallery.

In case you're intending to carry your camera often, you should factor in its weight and measurements. The Nikon D800 comes with outer dimensions of 146mm x 123mm x 82mm (5.7" x 4.8" x 3.2") having a weight of 900 grams (1.98 lbs) whilst the Sony A7R IV has proportions of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") and a weight of 665 grams (1.47 lbs).

See the Nikon D800 and Sony A7R IV in the new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will change based on the lens you have at that moment. The following is a front view over all size comparison of the D800 and the A7R IV.

Using dimensions and weight, the portability score of the D800 and A7R IV is 54 and 62 respectively.

Typically, it is very difficult to visualise the gap between sensor sizing only by looking at specifications. The graphic below might provide you a much better sense of the sensor sizes in the D800 and A7R IV.

To sum up, both cameras have the same sensor dimensions albeit not the same resolution. You should expect the Sony A7R IV to give more detail having its extra 25MP. Higher resolution will let you crop photographs a bit more aggressively. The older D800 is going to be behind in sensor technology.