The Foretrex 201 is a wearable Personal Navigator. for the outdoor enthusiast. Built rugged for adventure, this wrist-top device is perfect for hikers, campers, climbers, and mariners who want a useful GPS in a lightweight, waterproof, and affordable package. The Foretrex 201 combines the form factor of our new personal training system, the Forerunner. 201, with the GPS navigation features of our popular Geko 201. The Foretrex 201 offers hands-free GPS navigation information, allowing you to concentrate on your outdoor activities. The Foretrex 201 features six dedicated buttons (GoTo, Page, Enter/Mark, Up, Down and Power), making it one of the easiest GPS units on the market to operate. It offers the most essential navigation data, enhanced GPS accuracy, and extensive storage for waypoints, reversible routes, and track information. It includes Garmin's exclusive TracBack technology which allows you to mark your campsite, go trekking all day, and then follow the electronic "breadcrumb trail" back to camp in time for dinner. You don't even need to worry about packing extra batteries, because the Foretrex 201 runs on an internal lithium battery for 15 hours.