Fitbit OneEditor: Adam Zeis
The Fitbit One is an all-in-one activity tracker. During the day it tracks calories burned, steps, distance traveled, and much more. At night, it measures your sleep quality and teaches you how to sleep better. An update to the original Fitbit Ultra (or Classic) the One features a bigger digital display as well as a separate clip and charging dongle. Bluetooth sync is also available via a companion app on an iOS or Android device.