The Boost by Bowflex is a smart activity tracker use day or night. It keeps track of your activities, your calories, steps, distance traveled, and sleep.

The Bowflex Boost Smart Features:
It keeps track of all your activity, including steps taken, distance traveled, calories consumed, and sleep. It helps you become more goal-driven. You can choose from calorie, actions, or distance targets. Just tap to see your progress toward your own goal.
It is Bluetooth enabled and can easily sync to an iPhone 4S, Android 4.3, and other newer devices, and no cables are needed. Get social and share your progress with family and friends on Facebook and Twitter.
Bowflex Boost Activity Tracker
The Boost has a long battery life with a USB chargeable battery that lasts up to 11 days. Designed with a straightforward goal in mind, and that was to keep you moving! It provides an extended battery life of up to 11 days and is currently available for iOS devices (4s and higher) and Android devices (4.3 and higher).