24/7 HEART RATE: 24/7 heart rate helps you maximise your exercise sessions, see heart rate zones, track sleep stages and better estimate calorie burn. FEMALE HEALTH TRACKING: Understand your body on a deeper level by using your tracker with the Fitbit app to follow your cycle, record symptoms and more. ACTIVE ZONE MINUTES: Earn Active Zone Minutes whenever you reach your target heart rate zones, and track if you’re getting the recommended 150 minutes of heart-pumping activity each week. WATER-RESISTANT + SWIM TRACKING: Inspire 2 is water-resistant, so you can wear it in the shower, pool and beyond. Plus, it automatically tracks how long you’ve been swimming. 20+ EXERCISE MODES + SMARTTRACK: Choose from 20+ exercise modes to get real-time stats during your workouts—or let SmartTrack automatically recognise and record your exercises. SLEEP STAGES & SLEEP SCORE: See how much light, deep and REM sleep you get, and get tips in the app that can help improve sleep quality. UP TO 10 DAYS OF BATTERY: With a battery life up to 10 days, Fitbit Inspire 2 keeps the inspiration coming day and night without having to stop for a charge. Varies with use and other factors.