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Amazon.com: Kumi Watches for Men with 24/7 Heart Rate, SpO2, Vo2Max Monitoring, Fitness Tracker for Men with Pressure Prediction 120+ Sport Modes 5ATM Waterproof : Electronics
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Amazon.com: Kumi 1.69 Smart Watch for Android Phones with Temperature, Heart Rate, Blood Oxygen Monitor, 19 Sports Modes and 5ATM Waterproof Activity Tracker Blue : Electronics
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