We have the Garmin nuvi. (?) We are having challenges keeping the battery last. Not sure if it
our car or ?. It's dh's, I am not in the complete know, but we had challenges using it for our vaca. It worked well when we first got it, but over the last 6 mos seems to have shorter time. (Again, we may be doing something wrong). Dh commutes to the city, so it is not a huge priority for us, only used for long excursions.....
I purchased it on Amazon, and did lots of research at the time...It was the best deal even compared to local stores. They could not match the price.
I know this may sound silly, but you may want to check if GPS is available on your phone. I would guess that you may be able to upgrade and have the application. Just a thought..
Best,
Barb