No motion detection on my Ring camera?

I just got our first Ring camera... works very nicely, but apparently this one does *not* include motion detection?? The description is: "Ring Stick Up Cam Battery HD security camera with custom privacy controls"... I'm a little disappointed; I really want motion detection. Is that something I can add on afterwards?? Or did I just get the wrong camera?? Update on this issue: This device *does* have motion detection, and it is enabled - My problem was that I tried testing it through the window, and motion detection apparently does not work through the window...