TLink GPS Golf Watch and Pedometer with Bluetooth SMART Accurate front, middle, and back of the green yardages Built in Pedometer (steps, calories, distance walked) Free custom built app with over 30,000 + courses worldwide Approximately 3 rounds of battery life on one Charge and readable under Direct sunlight Track score, putts, fairways hit, and greens in regulation with detailed stats about each game you play. Additional in-app purchase required