I have an android tablet that is a few years old and i would like to explore adding GPS to it to use on my golf cart as a range finder . I had a golf car in Florida with one fastened to the cart and it was very cool. I downloaded a couple of free apps and tried them on a S 5 Galaxy but apparently needs a data plan for the gps to work. I am new to this site and just want to try this before having to smash the piggy bank and buying a Golf Buddy or similar.