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Amazon.com: POLAR VANTAGE M Advanced Running & Multisport Watch with GPS and Wrist-based Heart Rate (Lightweight Design & Latest Technology), White, Small : Electronics
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Amazon.com: Polar Vantage M Advanced GPS HRM Sports Watch for Men and Women (Running and Multisport Training with Wrist-Based Heart Rate Monitor, Waterproof, Lightweight Design, Enhanced Technology) : Everything Else
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