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Smart Bracelet, Health Activity Fitness Trackers with Heart Rate Sleep Monitor, 24/7 Blood Oxygen/Calorie/Stress/Step Tracker, Health Fitness Bands, 170+ Sports Modes Smart band with Free APP, 2 Bands 【24/7 Comprehensive Health Tracker】This smart bracelet offers all essential monitoring for daily wellness. Sync with the companion APP, and this activity & fitness tracker automatically records your heart rate, sleep cycles (deep/light sleep), office pressure, oxygen levels, calories, steps—The heart rate monitor lets you gain a clear picture of your overall health 【Versatile Fitness Companion & 170+Sports】As professional fitness trackers, it supports 170+ sports modes (walking, running, yoga, etc.). Whether you're working...