iPhone 5s GPS mount for scooter

I have an Apple Watch and thought that it would be quite handy for navigating the streets via scooter using my maps application. The problem is, there's too much of a delay between the phone and the watch for it to be effective. By the time I am notified it's time to turn, it's already behind me! You can only imagine how frustrating (and dangerous) this must be on the highways!

To remedy this problem, I modified my iPhone 5s VR head mount viewer bracket to take bungee cable hooks at all fo