That’s all fine and dandy, until you are somewhere without electricity.
I wouldn’t plan on using my Droid in a place where I don’t have electricity. I’d use a compass and the appropriate topo map for the area! Yes I’m actually trained to use the more primitive stuff to navigate around.
But if I’m driving - the droid is nice - and I have NavDroyd so don’t even need to be tethered to the network!
So your comment is sorta useless since we’re talking about useful battery life.