Automatic Activity Tracking: Records your heart rate, steps, calories, miles walked, active minutes, and sleep quality at night automatically Easy-Access Notifications: To help you keep up with your busy lifestyle, you can receive Call, text message and social network message notifications right on your wrist Current charge voltage 5V 1a-2.1 to charge time 2 hours- About 1-2 days delivery time Track activities throughout the day: steps, calories burned, mileage and heart rate. Automatic sleep monitoring: sleep time and quality.
