Dick's Sporting Goods offers the Garmin Forerunner GPS Watch, model no. 910XT, for $399.99. In cart it falls to $239.99. With free shipping, that's the lowest total price we could find by $30. Designed for running, cycling, swimming, and other sports, this GPS watch can track your position, distance, elevation, and pace. It features a heart rate monitor and water resistance to 165 feet.