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Amazon.com : POLAR Grit X - Rugged Multisport GPS Smart Watch - Ultra-Long Battery Life, Wrist-Based Heart Rate, Military-Level Durability, Sleep and Recovery, Navigation - Trail Running, Mountain Biking : Sports &
Road Trail Run: COROS Pace 2 Premium Sports Watch Review: The Lightest GPS Watch Yet. Highly Accurate and Capable. A Superb Value at $200.
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