- Optical heart rate tracker
- 3-axis accelerometer
- Vibration motor
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
- 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
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.
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+.
Your heart is at the center of everything you do. It keeps you moving and keeps you motivated. That’s why tracking it is so important—for your health, for your fitness and for every part of your personal journey. Everything starts with heart.
Track heart rate continuously on your wrist to maximize workouts, better track calorie burn and get a clearer picture of your health—all without an uncomfortable chest strap.
All Day Activity Tracking
Track steps, distance, calories burned, floors climbed, active minutes & hourly activity with up to 5-day battery life.
Reminders to Move
To help you stay active throughout the day, Charge 2 sends Reminders to Move that encourage you to take 250 steps every hour.
Charge 2 automatically tracks how long and how well you sleep to help you work toward a better routine.
Wake up peacefully with a silent vibrating alarm, and create a sleep schedule in the app to stay on track toward your goals.
Track specific exercises like running, weights or yoga to see your workout stats on display.
Connect to your phone’s GPS to see real-time run stats like pace and distance on your wrist, and a map of your route post-workout.
Charge 2 automatically records select exercises like hiking, biking, sports and more, so you get credit even if you forget to log a workout.
Find moments of calm throughout your day with personalized breathing sessions based on your real-time heart rate.
Call, Text, and Calendar
See call, text & calendar alerts on your wrist to keep your phone out of sight and your goals in focus.
Style it your way
From workouts to nights out, transform your Charge 2 with classic accessories, stylish sport bands, luxe leather bands or special edition trackers.