
Fitbit Charge 4 Fitness and Activity Tracker
About this item
Use the built-in GPS to see your speed and distance on-screen during outdoor runs, rides, hikes and more, and see an exercise intensity map in the app that shows your heart rate changes along your route.
With Active Zone Minutes, feel a buzz when you reach your target heart rate zones during training and celebrate when you gain extra minutes outside of training.
Use 24×7 heart rate to track resting heart rate and better measure calorie burn. Requires synchronization with mobile devices, Bluetooth LE and internet connection. Mac OS X 12.2 and later, iPhone 5S and later, iPad 5 gen. and above, Android 7.0 and above
See your SpO2 nightly average and range from the wrist, and view last week’s trends in the Fitbit app (SpO2 is not available in all markets. The SpO2 feature is not intended to diagnose or treat any medical condition or for any other medical purpose)
Track your skin temperature every night to see how it changes from your personal base (Not available in all markets. Only available on Fitbit app and shows variations only. Not intended for medical purposes)
Track workouts in real time with over 20 goal-based training modes. It’s also swim-proof and water-resistant to 50 Meters, so you can keep track of what you’re swimming, what you’re wearing in the shower, and more.
Multi-day battery life lasts up to 7 days and up to 5 hours when using built-in GPS (varies based on usage and other factors). Track sleep stages and review your in-app Sleep Score for an easy way to see how well you sleep