Do what's best for your body. Fitbit Charge 5 + Premium connects the dots between your activity, sleep, and stress so you can make the best decisions for your body, mind, and health. It all starts with your 6-month Premium membership1 and Daily Readiness2, a score based on activity, sleep, and heart rate variability (HRV) that helps you optimize your workout routine. Your score comes with personalized activity recommendations: low means go easy and recover-light yoga, deep breathing-while a high score gives you the green light to go all out. Enhance your recovery routine with advanced stress-management tools like the on-wrist EDA sensor. Stay ahead of heart health with atrial fibrillation (AFib) heart rhythm assessments using the on-wrist ECG app. And you'll always have the motivation to reach new goals with hundreds of guided workouts, a gallery of refreshing mindfulness sessions plus the fitness features you know and love like Active Zone Minutes and built-in GPS. | Fitbit® Charge 5 Fitness & Health Tracker