Description
imported from USA,
Sensors & Components
Optical heart rate tracker
3-axis accelerometer
Altimeter
n
Vibration motor
Display
OLED
Heart Rate
Like all heart rate tracking 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 that you're always tracking.
Battery life up to 5 days. Battery life and charge cycles vary with use, settings, and other factors; actual results will vary.
Battery type: Lithium-polymer
Charge time: One to two hours
Radio transceiver: Bluetooth 4.0
Memory
Saves 7 days of detailed motion data – minute by minute
Saves 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
Water Resistance
Fitbit Charge 2 is sweat, rain and splash proof. However, the device is not swim proof or shower proof. 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. Give your wrist a rest by taking the band off every now and then. Learn more.
Materials
Fitbit Charge 2's wristband is made of a flexible, durable elastomer material similar to that used in many sports watches. Fitbit Charge 2 also has a surgical-grade stainless steel buckle.
Environmental Requirements
Operating temperature: 14° to 113° F
Maximum operating altitude: 30,000 feet
Syncing & Notifications
Using Bluetooth LE wireless technology, Fitbit Charge 2 sends smartphone notifications and syncs automatically to computers and 200+ leading iOS, Android and Windows devices. Certain features like smartphone notifications or Connected GPS may require Android 5.0+. Look up your device to check compatibility.
Syncing range: Up to 20 feet
Syncing requires Bluetooth LE and Internet connection. Windows 10 computers that do not have Bluetooth LE will need a wireless syncdongle in order to sync.
Syncs with Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, Android 4.3 and later, and Windows 10 devices.