Garmin Forerunner 35 Outdoor Fitness GPS Black Sapphire With White Band 010-01689-13 Multisport WatchGarmin Forerunner 35 Outdoor Fitness GPS Black Sapphire With White Band 010 01689 13 Multisport Watch A slim, lightweight, outdoor fitness watch for people who are into some kind of a fitness schedule or other; could be daily running, weight training or racing. The GPS synchronizes your heart rate data to the earlier distance, pace and intervals records. Forerunner 35 isnt dependent upon another device to tell you those things. Just put it on and go.