Skycaddie SX550 golf GPS Owned since new and still works and looks like new Golf Monthly: "The Skycaddie SX550 is one of the most detailed and accurate GPS devices devices we have used out in course. With it's 35,000 courses mapped out with such accuracy this will be a great companion on the golf courses globally" If you also wish to take out a a membership with Skygolf (£30 /year) it will give you access to a world of data and statistics to track your performance, around the course. Come with protective case you can clip onto bag. Well worth the investment and a great little device.