Other FeaturesTrack 11 sports, including running, walking, climbing, tennis, skiing, soccer,cycling, elliptical training, and others,GPS +GLONASS to accurately track routes and distances traveled,Answer incoming calls right on your wrist (via Bluetooth connection to an Android phone) Checkyour emails, text messages, and other app notifications,Optical sensor for an accurate monitoring and recording of your heart rate throughout the day,Up to 5-day battery life to keep up with your active lifestyle,