I love my phone gps for finding my way around new places quickly and easily. We rely on technology to do so many thing, why cant i use it to guide me on a hill/mountain. I've used mine all over Europe and the uk with no issues. I know the battery could die or i break my phone but my watch also has a guide home function. Going to get some stick for this but i just find using a map slow and takes away from the running bit.