Canon EOS 7D vs Canon EOS 800D

This is a full comparison between the cameras Canon EOS 7D and Canon EOS 800D. We compare them by looking at the categories you see below.

Manufacturing

These cameras are both manufactured by Canon.

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

Both these cameras have the same sorts of sensor (called "APSC") which means that if you compare these cameras side by side the lenses will also have the same experienced focal length. Neither of the cameras has a Full frame sensor which means that you will get a "crop factor" where the camera's sensor size affect the focal length with a 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)

Resolution

Canon EOS 7D has a 18 MP (Megapixels) resolution while Canon EOS 800D has 24 MP. If we break down this in more detail this is the data behind the numbers:

Canon EOS 800D has a 34 % larger resolution than Canon EOS 7D. 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 800D has a larger ISO-range than Canon EOS 7D. Canon EOS 800D has an ISO range that stretches from 100 to 25600 while Canon EOS 7D has 100 to 12800.

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 7D
Lens compatibility chart for Canon EOS 800D

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definitely be of interest. Canon EOS 7D can shoot up to 8 pictures per seconds and Canon EOS 800D can shoot up to 6 pictures per seconds.

Ability to record movies

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

In this case, both Canon EOS 7D and Canon EOS 800D 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 7D weighs 860 gr (equal to 1,9 lb) which is 62% heavier than Canon EOS 800D and its 532 gr (or 1,17 lb).