M3 Fitness Tracker - BlackTracks real time heart rate automatically & continuously and automatically tracks your sleep duration & consistency with a comprehensive analysis of sleep quality data, helping you adjust yourself for a healthier lifestyle. Features: Measures all day activity of your Heart rate pulse, Blood Pressure, Blood Oxygen, and Sleep tracker. It is also a Fitness tracker of steps, distance, calories burned and active minutes. Adjustable band for men, women, and
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