REI offers the Garmin Forerunner 910XT GPS Sport Watch with Premium Heart Rate Monitor, model no. 010-00741-21, for $111.93 with free shipping. That's $88 under our April mention and the lowest total price we could find today by $103. Designed for running, cycling, swimming, and other sports, this GPS watch can track your position, distance, elevation, and pace. It features a chest strap heart rate monitor, ANT+ wireless technology, water resistance to 165 feet, and rechargeable Li-ion battery with up to a 20-hour battery life.