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