Canon EOS 1D X Mark III vs Nikon D4s

This is a full comparison between the cameras Canon EOS 1D X Mark III and Nikon D4s. We compare them by looking at the categories you see below.

Canon EOS 1D X Mark III

Nikon D4s

Manufacturing

Canon EOS 1D X Mark III is manufacturered by Canon but Nikon D4s is from Nikon. Both Canon and Nikon are well known brands though.

Canon EOS 1D X Mark III were released 2020 and Nikon D4s was released 2014. That is a 6 years difference. In tech, this period can be of interest since technology is always improving, etc.

Camera	Released
Canon EOS 1D X Mark III	2020
Nikon D4s	2014

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

Even though the camera sensors might be called differently they are both considered Full frame which means that the focal length of the lenses is not affected. There is no crop factor on any of these cameras and sensors.

Camera	Focal length, 50mm f/1.8 **
Canon EOS 1D X Mark III	50 mm Full-frame sensor No crop factor/focal length multiplier
Nikon D4s	50 mm Full-frame sensor No crop factor/focal length multiplier

** Experienced focal length when using a lens such as a common "50mm f/1.8"

Learn more about crop factor and focal length multiplier here:
Camera selection can affect the focal length (Canon)
Camera selection can affect the focal length (Nikon)

Resolution

Canon EOS 1D X Mark III has a 20 MP (Megapixels) resolution while Nikon D4s has 16 MP. If we break down this in more detail this is the data behind the numbers:

Camera	Megapixels
Canon EOS 1D X Mark III	20 MP 19961856 pixels 5472 x 3648
Nikon D4s	16 MP 16163840 pixels 4928 x 3280

Canon EOS 1D X Mark III has a 23 % larger resolution than Nikon D4s. This could give you more details in the picture but also a possibility to crop more in the pictures, afterward while editing the pictures, if needed that is.

ISO range

Canon EOS 1D X Mark III has a larger ISO-range than Nikon D4s. Canon EOS 1D X Mark III has an ISO range that stretches from 100 to 102400 while Nikon D4s has 100 to 25600.

Camera	ISO Range
Canon EOS 1D X Mark III	100-102400
Nikon D4s	100-25600

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that support autofocus, do not have an autofocus motor of their own but this won't cause any problems with these two cameras.

Here is a complete overview of which lenses work with each camera:
Lens compatibility chart for Canon EOS 1D X Mark III
Lens compatibility chart for Nikon D4s

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Canon EOS 1D X Mark III can shoot up to 20 pictures per seconds and Nikon D4s can shoot up to 11 pictures per seconds.

Camera	FPS (Frames per second)
Canon EOS 1D X Mark III	20
Nikon D4s	11

Ability to record movies

It is becoming more and more popular to record movies with digital cameras.

In this case, both Canon EOS 1D X Mark III and Nikon D4s can shoot movies.

Weight

The weight of the camera can be an extremely important factor, especially if the camera is about to be used, or carried around, for several hours at a time.

Canon EOS 1D X Mark III weighs 1440 gr (equal to 3.17 lb) which is 7% heavier than Nikon D4s and its 1350 gr (or 2.98 lb).

Camera	Weight
Canon EOS 1D X Mark III	1440 gr 3.17 lb
Nikon D4s	1350 gr 2.98 lb