Sync wirelessly to PC and Mac with included dongle. Syncs automatically within about 20 feet of wireless USB sync dongle. Icludes: Flex tracker; Large and small wristbands; Wireless sync dongle; Charging cord; Free Fitbit.com membership - includes ability to log in and t rack activity, food, water, body mass, weight and more;
Wirelessly and automatically sync with nearly 100 Android, iOS and Windows devices using Bluetooth Low Energy technology. See www.fitbit.com/devices for a current list of compatible models.