Garmin Approach G80 GPSGarmin Approach G80 GPS Approach G80 is the first all in one premium GPS golf handheld with integrated launch monitor, meaning you can easily track club head speed, ball speed, smash factor, swing tempo and estimated distance. The 3. 5 inch touch screen GPS is loaded with more than 41,000 courses worldwide while the integrated launch monitor helps you hone your technique at each and every one. With up to 15 hours on one single charge you can play