UP by Jawbone. Fitbit Flex. Your Fitbit One is always tracking, even when the display is asleep.
Press the button to view your stats. Your flower will grow and shrink, depending on how active you've been recently. Fitbit One. Track steps, distance, calories burned, stairs climbed, and how well you sleep.
The stats on the One™ automatically sync to your computer and select smartphones Learn from free graphs, charts, and tools that visualize your activity and sleep quality Challenge yourself and your friends as you set goals, earn badges and get fit A lot of power, a little device. Nike FuelBand.