Working hand-in-hand with your fitness tracking is the built-in 24/7 heart rate monitor, which can track calorie burn and let you know when you're in personalized heart rate zones. Based on your age and resting heart rate, it can tell you when you're in the fat burning, cardio, or peak heart rate zones. Even when you're asleep the Fitbit Charge 4 is working. It can track your time in light, deep, and REM stages to provide you with a nightly sleep score.
Long Battery Life
Up to 7 days of battery life when not using GPS. Up to 5 hours with GPS enabled.
Workout Intensity Map
When exercising outdoors, the Fitbit app on the Charge 4 can show you the heart rate zones you reached throughout your entire route.
Select exercises, such as running and biking, can be tracked automatically once you begin. Detailed information regarding the workout can be found within the Fitbit app.
Use the Spotify app and the Charge 4 can control your music playback, such as songs, recent playlists, and podcasts.
Women can use the Charge 4 to track their periods, record symptoms, view a predicted ovulation calendar, and more.
All-Day Activity Tracking
The Charge 4 can track steps, distance, floors climbed, hourly activity, calories burned, and stationary time.
Resting Heart Rate
In addition to your recording your heart rate while exercising, the Charge 4 records your resting heart rate, that way you can more accurately track it over time.
Water resistant up to 50m, the Charge 4 can automatically track swimming workouts in a pool or open water.
An intuitive greyscale touchscreen lets you see your stats all day. The OLED display is backlit and adjusts to different lighting conditions so you can see those statistics at all times of the day.
- Display Type: OLED
- Touchscreen: Yes
- Wireless Connectivity: Bluetooth 4.0 LE
- Global Positioning: GPS
- Vibration Motor: Yes
- Sensors: Accelerometer, Barometer (Altimeter), Touch
- OS Compatibility:
macOS 12.2 or Later
Android 7 or Later
iOS 5 or Later