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Still running on “empty” without all the real tools you need to enhance your run, expand your tracking to other activites, and easily move through your day? Set your eyes on the new Forerunner 645 and 645 Music. Strutting a suave metal bezel and interchangeable bands that takes the traditionally super sporty Forerunner line-up to office-appropriate, 645 delivers it all: advanced running dynamics, 24/7 heart rate and stress level monitoring, the ability to pay for purchases with your wallet safely back home, added sports like cycling, swimming, elliptical, cardio and more..and music storage if you choose. Because you’re not just a runner—you’re a well-rounded athlete with a life that moves quickly—and Forerunner 645/645 Music will go right along with you stride for stride.