How it Works
LED lights reflect off the skin to detect the changes in your blood volume, and finely tuned algorithms are applied to accurately measure your heart rate—even when you move.
FEATURES of Charge HR
PUREPULSE™ HEART RATE - Continuous, automatic, wrist-based heart rate monitoring with no uncomfortable chest strap.
BETTER WORKOUTS + BETTER BURN - See your heart rate during workouts for more effective training and better calorie tracking.
ACTIVITY TRACKING - Track steps taken, distance travelled, calories burned, floors climbed, and active minutes.
AUTOMATIC SLEEP DETECTION - Monitor how long and how well you sleep and set a silent vibrating alarm.
WATCH + DISPLAY - Bright display shows daily stats and time of day right on your wrist.
EXERCISE TRACKING - See real-time exercise stats on display, then review workout summaries on your dashboard.
CALLER ID - See call notifications on display when your phone is nearby.
DESIGNED FOR ALL-DAY WEAR - Textured, comfortable band available in four stylish colours: black, plum, blue and tangerine.
WIRELESS SYNCING + ONLINE TOOLS - Sync stats wirelessly and automatically to your computer and 120+ leading smartphones. See progress, log food and earn badges through Fitbit’s mobile and online dashboard.
SHARE + COMPETE - Share and compete with friends and family in NEW Fitbit Challenges.
WATER RESISTANT