Manufacturer's Part NumberFB404BYLEAN810351022251Product TypeSmart Fitness Power Rechargeable batteryYesBattery lifeUp to 7 days General Box contents- Fitbit Charge Fitness Band - Charger - Wireless dongle - DocumentationDimensions200 x 72 x 70 mm (H x W x D)Weight14 gManufacturer's guarantee1 year Connectivity App available: Yes - FitbitApp compatibility- iOS - Android - PC - MacConnectivity- Bluetooth 4.0 - NFC Performance Tracking- Active minutes - Calories burned - Distance traveled - Hours slept - Quality of sleep - Stairs climbed - Steps takenOther features- Caller ID - Clock - Silent alarm Overview TypeActivity trackerStyleWristbandDevice compatibility - iOS - Android - PC - MacDisplayOLED displayColourBurgundyWater resistantYes