Mine has one:
" The main difference between the phantom 3 standard and advanced is the new vision positioning system (VPS) which allows the quadcopter to fly indoors and low to the ground with ease and GLONASS in which the drone can connect to Russian satellites for even greater precision and accuracy while flying."
I hope PDJT doesn't get the 'advanced' model...'cause Russia! For some reason that just jumped off the page. I think I'm being programmed! :)