Up to 7 days of battery and Water-resistant up to 50m, Compatible with iOS 15 or higher & Android OS 9.0 or higher, Sweat the smart way: Built-in GPS, Daily Readiness, Reminders to move, 24/7 heart rate, Automatic activity tracking, 20 exercise modes, workout intensity map, Know more, Achieve more with Fitbit Premium: 6-month membership included, Smart features: Notifications, Vibrant colour display, Always-On Display Mode, Google Fast Pair, Fitbit Pay, Help improve your nights: Sleep Score & sleep stages, Smart Wake, Silent Alarms, Do not disturb mode, Health features: Stress Management tools, EDA Sensor, ECG App, Health Metrics Dashboard (including Sp02, Heart Rate Variability, Skin Temperature Tracking), Menstrual Health tracking, Heart Rate Zones
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