Description
Exterior: Weatherproof 400D Nylon and poly melange
without missing a beat
DURATION TIME up to 41 hours
digital time
Fitbit Charge 4 Special Edition Granite travel Exterior: Weatherproof 400D Nylon andDescription Features About The Brand Take your goals further with a health & fitness tracker that packs built in GPS for pace and distance, 24 7 heart rate tracking and more into a comfortable wristband. Warranty : 1 year HEALTH All Day Activity Tracking Sleep Tracking Sleep Tracking with Light, Deep, REM Oxygen Saturation (SpO2) Monitoring Skin Temperature Variation Heart Rate Variability Breathing Rate Fitbit Premium Sleep Score All Day Calorie Burn