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Awake or asleep, the Charge 4 Health & Fitness Tracker from Fitbit is designed to provide you with all-day health and fitness tracking. Featuring built-in GPS, the Charge 4 lets you see your pace and distance when exercising outside, along with a map of your workout. It tracks runs, rides, and hikes, but the Charge 4 is capable of much more than that. Over 20 goal-based exercise modes are at your fingertips. Simply go into an exercise mode during a workout, set a goal, and then see real-time process on screen.
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. Outside of optimizing health and fitness, the Charge 4 has practical advantages throughout the day, such as delivering smartphone alerts and notifications, playing music via Spotify, or paying for items with Fitbit Pay.
Up to 7 days of battery life when not using GPS. Up to 5 hours with GPS enabled.
Alerts you with a buzz when you reach your target heart rate zones when exercising, and will celebrate when you earn extra zone minutes outside of working out.
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.
A personalized cardio fitness score helps you to better monitor this aspect of your fitness over time.
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.
The Charge 4 can track steps, distance, floors climbed, hourly activity, calories burned, and stationary time.
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.
In addition to measuring burned calories during workouts, the Charge 4 records the calories you burn for the remainder of the day. Having a daily total can help you better stay on track and meet your weight loss goals.
Using the Fitbit app, you can view a complete picture of your health and fitness on your own dashboard. Track your progress over time and set new goals for yourself.
Water resistant up to 164', the Charge 4 can automatically track swimming workouts in a pool or open water.
You need to move in order to reach your goals and the Charge 4 helps you stay on track with fun, on-screen reminders to encourage you to get up and move throughout the day.
Set personalized reminders to help you stay on track to your goals. Remind yourself to stay active, get hydrated, get to sleep on time, and more
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.
Staying calm and removing stress is essential to a healthy lifestyle. The Fitbit Charge 4 uses the built-in heart rate monitor to detect whether you may be stressed, and will then guide you through an on-screen breathing session to help center yourself.
Pair the Fitbit Charge 4 with your smartphone to receive notifications from apps, such as weather and timers. If you pair the Charge 4 with an Android-based smartphone, you can even send quick replies to incoming messages. A host of everyday apps opens up a variety of capabilities, such as setting a timer, checking the weather, or running a stopwatch.
Choose from dozens of unique clock faces to match the Charge 4 to your style
Charge 4 automatically syncs to iOS and Android mobile devices, showing you stats, trends, and progress on your Fitbit dashboard.
In these modes you can relax and recharge by muting calls and set a vibrating alarm for reminders or to wake up more naturally.
Display
| Display Type | OLED |
| Touchscreen | Yes |
Connectivity
| Wireless Connectivity | Bluetooth 4.0 LE |
| Global Positioning | GPS |
| Wireless Range | 30' / 9.1 m |
Performance
| Operating System | Proprietary OS |
| Vibration Motor | Yes |
| Sensors | Accelerometer, Barometer (Altimeter), Touch |
| OS Compatibility | macOS 12.2 or Later Android 7 or Later iOS 5 or Later |
Memory
| Memory Retention | 7 Days (Motion Data) |
Battery
| Estimated Battery Life | 7 Days (GPS Off) 5 Hours (GPS On) |
| Rechargeable Battery Chemistry | Lithium-Ion Polymer |
| Charging Time | 2 Hours |
Band
| Band Circumference | 5.5 to 7.1" / 140 to 180 mm 7.1 to 8.7" / 180 to 220 mm |
General
| Water Resistance Depth | 164.04' / 50 m |
| Splash Proof | Yes |
| Operating Temperature | -4 to 140°F / -20 to 60°C |
| Operating Altitude | 28,001' / 8535 m |
| Dimensions | 1.4 x 0.9 x 0.5" / 3.56 x 2.29 x 1.27 cm |
Packaging Info
| Package Weight | 0.435 lb |
| Box Dimensions (LxWxH) | 10.7 x 10.4 x 10" |