PurePulse™ Heart Rate : Track heart rate continuously on your wrist to maximize workouts, better track calorie burn and get a clearer picture of your health—all without an uncomfortable chest strap.All-Day Activity Tracking : Track steps, distance, calories burned, floors climbed, active minutes & hourly activity with up to 5-day battery life.* Reminders to Move : To help you stay active throughout the day, Charge 2 sends Reminders to Move that encourage you to take 250 steps every hour. Auto Sleep Tracking : Charge 2 automatically tracks how long and how well you sleep to help you work toward a better routine. Silent Alarm : Wake up peacefully with a silent vibrating alarm, and create a sleep schedule in the app to stay on track toward your goals. Multi-Sport Modes : Track specific exercises like running, weights or yoga to see your workout stats on display. Connected GPS : Connect to your phone’s GPS to see real-time run stats like pace and distance on your wrist, and a map of your route post-workout. SmartTrack : Charge 2 automatically records select exercises like hiking, biking, sports and more, so you get credit even if you forget to log a workout. Cardio Fitness Level, Powered by PurePulse : Get a better understanding of your fitness level and see how you can improve over time with a personalized Cardio Fitness Score Guided Breathing Sessions : Find moments of calm throughout your day with personalized breathing sessions based on your real-time heart rate. Call, Text & Calendar Alerts : See call, text & calendar alerts on your wrist to keep your phone out of sight and your goals in focus. Customizable Clock Faces : Choose your clock display based on the stats you want to see and the design that suits your taste.