Garmin Watch Approach S20 Black Plus TruSwing Bundle 020-00164-00. Garmin Approach S20 is a sleek and lightweight GPS golf watch that provides more convenience on the course with distances on over 40,000 preloaded courses including hazards plus Green View and the new Garmin AutoShot game tracker for detailed game analysis on Garmin Connect. The watch also doubles as an activity tracker and provides smart notifications to connect you with your active lifestyle.