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The lightweight and discreet activity tracker monitors heart rate, sleep, blood oxygen saturation, and over 40 different workout modes. It is water-resistant up to 50 meters and the battery lasts up to seven days on a single charge.

• Lightweight and discreet activity tracker
• 24/7 heart rate monitoring and alerts
• Sleep quality and sleep stage tracking
• Steps, distance traveled, calories burned, cardio load
• Google Health Coach