24/7 heart rate
Female health tracking
Water resistant (to 50 meters) + swim tracking
20+ exercise modes + SMARTTRACK
Sleep stages & sleep score
Up to 10 days of battery
3-Axis accelerometer
Optical heart rate monitor
Vibration motor
Saves 7 days of detailed motion data, minute by minute
Water resistant to 50 meters
FITFB418BKBK