Not really relevant to the topic, but could be helpful. My Garmin 450 has the carabiner clip. I usually have some sort of pack on and I clipped the gps to the adjuster strap on the waist belt and left it on. Helpful to have the track recorded. YMMV.
Do all Garmin units have the capability to leave it on and track record and if so, does doing so significantly reduce the time between battery changes?
