• PurePulse Heart Rate
• Activity Tracking
• Auto Sleep + Silent Alarm
• Exercise Tracking
• Caller ID
• OLED Display
• Get continuous, automatic, wrist-based heart rate and simplified heart rate zones
• Track workouts, heart rate, distance, calories burned, floors climbed, active minutes and steps
• Monitor your sleep automatically and wake with a silent alarm
• See call notifications, daily stats and time of day on the OLED display
• Sync stats wirelessly and automatically to your computer and over 150 leading smartphones
SENSORS AND MOTORS
Your Charge HR uses a MEMS 3-axis accelerometer to measure your motion patterns and determine your steps taken, distance traveled, calories burned, and sleep quality.
Charge HR also contains:
• An altimeter, which measures floors climbed
• A vibration motor, which allows it to vibrate when alarms go off, when you reach a goal, and when you receive call notifications
• An optical heart rate monitor, which measures your beats per minute (BPM) at rest and when you are exercising
BATTERY
Charge HR contains a rechargeable lithium-polymer battery.
Memory Charge HR holds detailed minute-by-minute information for the most recent 7 days and 30 days of daily summaries. Heart rate data is stored at one-second intervals when in exercise mode and at five-second intervals at all other times.
Your recorded data consists of steps taken, distance traveled, calories burned, floors climbed, active minutes, heart rate, and sleep tracked.
Sync your Charge HR regularly to have the most detailed data available to view on your Fitbit.com dashboard.
