Canon EOS Rebel XSi vs Canon EOS 550D

This is a full comparison between the cameras Canon EOS Rebel XSi and Canon EOS 550D. We compare them by looking at the categories you see below.

Canon EOS Rebel XSi
Canon EOS 550D

Manufacturing

These cameras are both manufacturered by Canon.

Canon EOS Rebel XSi were released 2008 and Canon EOS 550D was released 2010. That is a 2 years difference. In tech, this period of time can be of interest since technology is always improving etc.

Camera Manufacturer Released
Canon EOS Rebel XSi Canon 2008
Canon EOS 550D Canon 2010

Type of camera

Both these cameras are DSLR cameras. No difference there.

Sensors / crop factor

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

Camera Experienced focal length when using a lens with 50mm focal length (ex a common "50mm f/1.8")
Canon EOS Rebel XSi 80 mm (a Canon APS-C sensor have a crop factor / focal length multiplier by * 1.6)
Canon EOS 550D 80 mm (a Canon APS-C sensor have a crop factor / focal length multiplier by * 1.6)

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

Resolution

Canon EOS Rebel XSi has a 12,2 MP (Megapixels) resolution while Canon EOS 550D has 18,7 MP. If we break down this in more detail this is the data behind the numbers:

Camera Megapixels Pixel (total) Pixels (width) Pixels (height)
Canon EOS Rebel XSi 12,2 MP 12166656 4272 2848
Canon EOS 550D 18,7 MP 17915904 5184 3456

Canon EOS 550D has a 47 % larger resolution than Canon EOS Rebel XSi. This could give you more details in the picture but also a possibility to crop more in the pictures, afterwards while editing the pictures, if needed that is.

ISO range

Canon EOS 550D has a larger ISO-range than Canon EOS Rebel XSi. Canon EOS 550D has an ISO range that stretches from 100 to 12800 while Canon EOS Rebel XSi has 100 to 1600.

Camera ISO Range
Canon EOS Rebel XSi 100-1600
Canon EOS 550D 100-12800

Autofocus and lens compatibility

Both of these cameras have a built-in autofocus motor. Some lenses, that supports autofocus, does not have a autofocus motor of their own but this wont cause any problems with these two cameras.

Here is a complete overview of which lenses that work with each camera:
Lens compatibility chart for Canon EOS Rebel XSi
Lens compatibility chart for Canon EOS 550D

Pictures per second

Depending on what you are shooting the FPS, or frames/pictures per second, can definately be of interest. Canon EOS Rebel XSi can shoot up to 3,5 pictures per seconds and Canon EOS 550D can shoot up to 3,7 pictures per seconds.

Camera FPS (Frames per second)
Canon EOS Rebel XSi 3,5
Canon EOS 550D 3,7

Ability to record movies

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

It is only one of these two cameras that support recording of movies and movie clips and that is Canon EOS 550D. Sadly, the Canon EOS Rebel XSi does not support this.

Weight

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

Canon EOS Rebel XSi weighs 524 gr (equal to 1,16 lb) which is 3% heavier than Canon EOS 550D and its 510 gr (or 1,12 lb).

Camera Weight (in gram) Weight (in pounds)
Canon EOS Rebel XSi 524 gr 1,16 lb
Canon EOS 550D 510 gr 1,12 lb