Features
GPS connected to your Smartphone
Water Resistant: Sweat, rain, and splash proof but Not suitable for Swimming
PurePulse™ Heart Rate Gives continuous, automatic, wrist-based heart rate & simplified heart rate zones
Workouts + All-Day Activity Track workouts, heart rate, distance, calories burned, floors climbed, active minutes & steps
Reminders to Move feature to alert you to walk at least 250 steps each hour
Exercise Tracking Get real-time run stats & review routes, splits and workout summaries on the app
SmartTrack™ Automatically recognizes select activities and records it in the exercise section of the Fitbit app
Auto Sleep Tracking & Silent 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
Syncs data wirelessly & automatically to leading smartphones and computers
Battery life: Lasts up to 5 days
Battery type: Lithium-ion polymer (LiPo)
Charge time: Up to two hours
Bluetooth Specification: Bluetooth 4.0
Bluetooth Range: 20.0' (6.1 m)
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
App for iOS/Android/Windows Phones
Sport Tracking & Exercise Recognition Interactive OLED Display
UPC:
Tech Specs
Size: Fits wrists 5.5 - 6.7" (14 - 17 cm) in circumference
What's Included
Charging cable
Wireless sync dongle
Sensors & Components
Optical heart rate monitor
3-axis accelerometer
Altimeter
Vibration motor
Display OLED
Heart Rate
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 like Cetaphil or Aquanil. Give your wrist a rest by taking the band off every now and then.
Materials
Fitbit Charge HR 2's wristband is made of a flexible, durable elastomer material similar to that used in many sports watches. Fitbit Charge HR also has a surgical-grade stainless steel buckle.
Environmental Requirements
Operating temperature: 14° to 113° F
Maximum operating altitude: 30,000' (9,144 m)
Sync Compatibility
Syncs with Mac OS X 10.6 and up, iPhone 4S and later, iPad 3rd generation and later, Android 4.3 and later, and Windows 10 devices
Syncing requires Bluetooth LE and Internet connection. Windows 10 computers that do not have Bluetooth LE and will need a wireless sync dongle in order to sync