Fitbit Flex (Blue Strap, Size, Navy

This removable tracker from Fitbit is small and slim, letting you wear it in a wristband, bangle or even a pendant to keep a check on your daily activity, sleep patterns and quality of workout, no matter whether it is running, aerobics or even swimming. Thanks to the swim-proof feature of this band, you never have to worry about a splash. The tracker also lets you check your call and text notifications on your wrist. Additional Detail: When fully charged, the battery can last for up to 5 days, depending on usage. The FitBit app is required to use this device's smart functions.