Sense 2, Health and Fitness Smartwatch with built-in GPS, advanced health features, up to 6 days battery life - compatible with Android and iOS Graphite / Graphite Aluminium

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, 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, Included in the box: Fitbit Sense 2 Smartwatch (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 Smartwatches)