Fitbit Sense 2 Health and Fitness Smart Watch with Built-In GPS, Grey

6+ days of battery and Water-resistant up to 50m Compatible with iOS 13 or higher & Android OS 8.0 or higher Live healthier: all-day stress detection with cEDA and daily Stress Management Score, SpO2, health metrics dashboard, menstrual health tracking and mindfulness content Measure and improve sleep quality: personalized Sleep Profile, daily Sleep Stages & Sleep Score, Smart wake alarm and do not disturb mode Enhance activity: 24/7 heart rate monitoring, built-in GPS and workout intensity map, Daily Readiness Score, Active Zone Minutes, all-day activity tracking, 40+ exercise modes and automatic exercise tracking Designed for all-day wear: on-wrist Bluetooth calls, texts, phone notifications, customisable clock faces, iOS and Android compatible, sleek, slim and water resistant to 50 meters, 6+ day battery & fast charge Includes 6-month Premium membership for deeper insights & guidance, exclusive workouts, mindfulness sessions and more Included in box: Fitbit Sense 2 Smart watch (Size Small and Large Straps included). Wrist straps measure small 140 mm-180 mm with additional Large 180 mm-220 mm. Charger also included (compatible with other Fitbit Smart watches)