1pc Small S Green 1pc Small S Black Replacement Band + 1pc Charging Cable + 1pc Clasp for Fitbit FLEX Only /No tracker/ Wireless Activity Bracelet Sport Wristband Fit Bit Flex Bracelet Sport Arm Band Armband

Improve your fitness with this easy-to-use monitor.
Features average and max heart rate, age-based target zone, visual/audible alarm in target zones, and calorie expenditure.
Dual time zone, time/date/alarm, 8 languages, and comfortable heart rate strap.

Tracks your everyday movement including your steps, calories burned and distance.
Offers three ways to wirelessly syncs your activity to the Fit bug Activity app (available to download from iTunes on compatible devices) -Push (sends data on demand), Beacon (sends data at set intervals) or Stream (sends data in real-time) mode.
Free access to KiK -your digital coach – which coaches you to stay on track.

This Smart Bracelet can diaplay the time, steps, distance and calorie clearly. Let you know your sports data right now
Snyc Sports Data, Share with Friends;When bluetooth paired, it can automatically sync your data to other devices, such as iphone 4S,5,5S, ipod touch5, etc. (OS must be IOS 6.0 or later); Samsung S4, Note 3, etc. (OS must be Android 4.3 or later). Challenge and compete with your friends! Make progress with your friends together! It gives you real-time assessment of your exercise throughout the day.
It is your best activity companion!

designed specially for fitbit flex to protect the clasp loose and band fall off
a must have for fitbit flex
secure the wristband in style, do not lost some $100 investment !