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Amazon.com: POLAR Vantage M2 - Advanced Multisport Smart Watch - Integrated GPS, Wrist-Based Heart Monitor Daily Workouts - Sleep and Recovery Tracking - Music Controls, Weather, Phone Notifications : Electronics
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Amazon.com: Polar Ignite - GPS Smartwatch - Fitness watch with Advanced Wrist-Based Optical Heart Rate Monitor, Training Guide, Waterproof : Electronics
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