Display
Touchscreen, Grayscale OLED
Battery and Power
Fitbit Charge 3 has a battery life up to 7 days. Battery life and charge cycles vary with use, settings, and other factors. actual results will vary. We recommend charging your tracker every few days to ensure you are always tracking.
Battery type: Lithium-polymer
Charge time (0-100%): 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 3 is water resistant to 50 meters. After swimming or getting the band wet, we recommend drying the band because, as with any wearable device, it's best for your skin if the band is clean and dry. We do not recommend wearing Charge 3 in a hot tub or sauna. See www.fitbit.com/productcare for more details.
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
The Fitbit Charge 3 classic band is made of a flexible, durable materal similar to that used in many sports watches, and includes an aluminum buckle. The woven band is made from a comfortable polyester and includes an aluminum buckle.
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.
Environmental Requirements
Operating temperature: -4 to 113 F
Maximum operating altitude: 28,000 feet
Syncing
Fitbit Charge 3 syncs automatically and wirelessly to computers and 200+ leading iOS, Android & Windows devices using Bluetooth LE wireless technology. Windows compatibility coming soon.
Syncing range: Approx. 20 ft
Certain features like smartphone notifications may require Android 5.0+. Check your device compatibility.
Syncing requires Bluetooth LE and Internet connection. Windows 10 computers that do not have Bluetooth LE will need a wireless sync dongle 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. Check yours here. Windows compatibility coming soon.
