The small Canon IXUS fits into a hair's breadth. But: A tiny inside pocket, whose function was not entirely clear ... Attention ... could possibly scratch the screen of the camera. Would advise, always insert the camera with the display facing forwards.
Compared to the original Canon pocket is not quite done up, so that part of the camera can still be seen. I find not so cleverly, because the camera would not be as well protected in bad weather conditions, especially if you are carrying the bag on your belt.
From the overall impression the camera bag from Amazon does not look as chic as the original.