Description
Fitbit Charge 4 Fitness and Activity Tracker - Black
- 24/7 Heart Rate - Get heart rate insights day and night to better track calorie burn, optimize workouts and uncover health trends.
- Heart Rate Zones - Use real-time heart rate zones to see whether you’re in the Fat Burn, Cardio or Peak zone and use what you learn to know the impact of your workouts.
- Automatic Exercise Recognition - Charge 3 automatically recognizes exercises like runs, swims, elliptical, sports and more and records them in the Fitbit app.
- Swimproof + Auto Swim Tracking - Water resistant up to 50M, Charge 3 automatically tracks swims and can be worn in the shower, pool and beyond.
- Apps - Charge 3 adds more convenience to your schedule with access to everyday apps like the weather—all with a tap, right from your wrist.
- Smarter, Sleeker Display - A large touchscreen and backlit display that automatically adjusts to lighting conditions makes it easier to see stats and notifications all day.
SPECIFICATIONS
- 3-axis accelerometer
- Optical heart rate monitor
- Altimeter
- Vibration motor
- Relative SpO2 sensor
- Battery type: Lithium-polymer
- Charge time (0-100%): 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
- Operating temperature: -10° to 45° C
- Maximum operating altitude: 8,535 m
- Fitbit Charge 3 syncs automatically and wirelessly to computers and 200+ leading iOS, Android & Windows devices using Bluetooth LE wireless technology. Windows compatibility coming soon.
- Syncing range: Up to 6 m
- Vendor Product Number: FB409GMBK