PurePulse® Heart RateGet continuous, automatic, wrist-based heart rate & simplified heart rate zones.
Multi-Sport ModesTrack workouts like running, biking & weights and get real-time stats on display. Then see post-workout summaries on screen & in the app.
Connected GPSConnect Charge 2 with the GPS on your phone to see real-time stats like pace and distance on display and record a map of your route.
Cardio Fitness LevelGet a better understanding of your fitness level and see how you can improve over time with a personalized Cardio Fitness Score.
SmartTrack™Automatically recognizes select activities and records them in the exercise section of the Fitbit app.
Guided BreathingFind moments of calm throughout your day with personalized breathing sessions based on your heart rate.
All-Day Activity TrackingTrack steps, heart rate, distance, calories burned, active minutes, floors climbed, hourly activity & stationary time.
Reminders to MoveGet friendly Reminders to Move that encourage you to reach an hourly goal of 250 steps.
Smartphone NotificationsSee call, text and calendar alerts on display when your phone is nearby.
Auto Sleep Tracking & Silent AlarmsAutomatically track your sleep quality & wake up peacefully with a silent alarm.
Hi-Res Tap DisplayAn interactive OLED display makes it easy to view your stats. Simply tap the screen to get the information you need.
Interchangeable BandsSwitch up your look with accessory bands in leather and more.
Long Battery LifeBattery life up to 5 days so you can track all day and night without needing a charge.*
Wireless SyncingSync stats wirelessly & automatically to computers and 200+ leading iOS, Android and Windows devices.
- Fitbit Charge 2 tracker
- Charge 2 Classic wristband
- Charging cable
Sensors & Components
- Optical heart rate tracker
- 3-axis accelerometer
- Vibration motor
Heart RateLike all heart rate tracking technologies, accuracy is affected by physiology, location of device, and different movements.
Battery and PowerWe 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
- 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 ResistanceFitbit 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.
CareIf 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.
MaterialsFitbit 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.
- Operating temperature: 14° to 113° F
- Maximum operating altitude: 30,000 feet
Syncing & NotificationsUsing 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+.
- 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 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.