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Health Fitness Tracker, Smart Watches for Women Men with 24/7 Heart Rate Blood Oxygen Monitor, Sleep Tracker, Calories & Pedometer, IP68 Waterproof Activity Trackers & Fitness Watch for Android&iPhone

【Comprehensive Health & Sleep Tracker】This fitness and activity tracker offers 24/7 monitoring of your heart rate and blood oxygen levels. The sleep analysis feature tracks REM, light, and deep sleep…