Garmin Index Sleep Monitor S/M

The Index Sleep Monitor includes features such as a smart wake alarm, Pulse Ox sensor, respiration rate and stress tracking, plus Body Battery monitoring for day and night energy levels. It's easy to sync your data with a compatible smartphone or Garmin smartwatch using the Garmin Connect app for updates on-the-go, and with up to 7 nights of battery life, it keeps track all week long so you can stay ahead of your fitness goals. Sleep and Recovery Features Resting Heart Rate HRV Status Sleep Stages Smart Wake Alarm Skin Temperature Pulse Ox Sensor Body Battery Energy Monitoring - Day and Night Stress Tracking Respiration Rate Women's Health Sync Data with compatible smart watch and Garmin Connect App TrueUp Technical Specification Machine washable band Smartphone compatible: iPhone, Android Connectivity: BLUETOOTH Low Energy 5.0 Water rating: 5 ATM (50 metres) Battery: Lithium-ion Battery Life: 7 Nights (with typical usage of 8 hours of sleep) Strap Material: 70% Nylon, 30% Spandex Dimensions (Module): 41.7 x 37.6 x 7.8 mm Dimensions (Sleep band S-M): 326 x 63.5 x 0.55 mm Weight (Module only): 14.5g Weight (Sleep band S-M): 15.8g  In the box: Index Sleep Monitor, charging/data cable, documentation