PurePulse™ Heart Rate
Get continuous, automatic, wrist-based heart rate & simplified heart rate zones
SmartTrack™
Automatically recognizes when you exercise & records it in the Fitbit app
Workouts + All-Day Activity
Track steps, distance, calories burned, floors climbed, active minutes, heart rate, hourly activity & stationary time
Auto Sleep + Alarms
Monitor your sleep automatically & set a silent alarm
Caller ID + Watch
See daily stats & time of day, and get call notifications with compatible devices
Wireless Syncing
Sync stats wirelessly & automatically to leading smartphones and computers
Long Battery Life
Lasts longer than competing trackers with a battery life up to 5 days*
Sizes:
Small Fits Wrists 5.5” - 6.3”
Medium Fits Wrists 6.3” - 7.8”
Large Fits Wrists 7.8” – 8.9”
Sensors & Components
Optical heart rate monitor
3-axis accelerometer
Altimeter
Vibration motor
Display
OLED
Heart Rate
Like all heart rate monitoring technologies, accuracy is affected by physiology, location of device, and different movements. Learn more about wear during workouts.
Battery and Power
We recommend charging your device every few days to ensure you are always tracking.
Battery life: lasts up to 5 days
Battery type: Lithium-polymer
Charge time: One to two hours
Radio transceiver: Bluetooth 4.0
Memory
Tracks 7 days of detailed motion data – minute by minute.
Tracks daily totals for past 30 days
Stores heart rate data at 1 second intervals during exercise tracking and at 5 second intervals all other times
What’s Included
Charging cable
Water Resistance
Charge HR is sweat, rain and splash proof. However, the device is not swim proof or showerproof. With any wearable device, it’s best for your skin if the band stays dry and clean.
Care
If the band gets wet or if you sweat in it, remove and completely dry the band before putting it back on. Clean the band with a mild soap-free cleanser. Give your wrist a rest by taking the band off every now and then. Learn more.
Materials
Charge HR's wristband is made of a flexible, durable elastomer material similar to that used in many sports watches. Charge HR also has a surgical-grade stainless steel buckle.
Environmental Requirements
Operating temperature: -4° to 113° F
Maximum operating altitude: 30,000 feet
Syncing
Charge HR syncs automatically and wirelessly to tablets, computers and 200+ leading iOS, Android and Windows smartphones using Bluetooth 4.0 wireless technology.
Syncing range: 20 feet
Call notifications via Bluetooth 4.0
Syncing to computers requires Internet connection and USB port
Syncing to mobile devices requires Bluetooth and Internet connection
Syncs with Windows Vista and later, Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, and leading Android and Windows devices
