Fitbit Charge 6 - Built-in GPS Sleep Tracking Stress Management 24/7 Heart Rate 7 Day Battery Life Advanced Fitness and Health Tracker Garmin

Recommended to use USB (5V1A) for charging (too much power in charging leads to battery deteorioration which is not covered by warranty).PLEASE keep ALL Included accessories and BOX to ensure item is valid for warranty return. What's Included Fitbit Charge 6Band (small and large size bands)Charging cable Sensors & ComponentsOptical heart rate monitor3-axis accelerometerBuilt-in GPS + GLONASSRed and infrared sensors for oxygen saturation (SpO2) monitoringDevice temperature sensor (skin temperature variation available in the Fitbit app)Vibration motorAmbient light sensorNFCMultipurpose electrical sensors compatible with ECG app & EDA Scan appBattery & PowerBattery life of up to 7 days. Use of the always-on display and SpO2 features will require more frequent charging. We recommend charging your tracker every few days to ensure you are always tracking.Battery type: Lithium-polymerCharge time (0-100%): Two hoursRadio transceiver: Bluetooth 5.0