Smart Golf is an device that combines a distance measurement and a ball marker is small and light to carry easily, and it provides distance to a hole cup and a carry distance in the real-time via the connection between smartphone and Bluetooth. It is also provides a golf course information where you visit by GPS of your smartphone automatically. You dont need to select a course because Smart Golf has golf courses information over 34,000 all around the world and suggests you automatically by GPS on Smartphone.