I don't want it to navigate, other than by knowing exact elevation. I thought altitude could be accurately determined by GPS. I am admittedly very uneducated about all this.
I was under the impression that a changing barometric pressure, between calibrations, could lead to quite false readings.
Maybe, I'll just get the running watch for now and figure out the altimeter thing after some more mountaineering experience. I was just hoping to kill two birds with one stone.