The follow me feature is clever. I simply used it on my phone to test it, as ALL phones have GPS. I did not do anything fancy, just tried to outmaneuver it on foot on a soccer field and it bested me. But I'm old. Incidentally I have a Samsung Tab S 8.4 with GPS and 4G LTE and have had problems with connectivity. AND the Sammy screen is known world wide for the striking High Def screen, but it washes out outside a bit. FWIW