Strive for more with the Striiv Bio 2 fitness tracker, which tracks your activity, sleep quality, heart rate, and goals on your way to improved health. In addition to the core activity tracking you will stay connected with calls, text messages, and app notifications on your wrist. Set yourself reminders to drink water, log weight, and take Medications/supplements using a friendly interface that will keep you on track! -continuous heart rate tracks even when running -smartwatch features: caller ID, text messages, and app alerts -activity and sleep tracking – up to 7-Day battery life.