Flex syncs automatically and wirelessly to tablets, computers and 150+ leading iOS, Android and Windows smartphones using Bluetooth 4.0 wireless technology.
Syncing to computers requires Internet connection and USB port. Syncing to mobile devices requires Bluetooth and Internet connection. Syncing range: 20 feet
Syncs with Windows Vista and later, Mac OS X 10.6 and up, iPhone 4S and later, iPad 3 gen. and later, and leading Android and Windows devices
We recommend charging your device every few days to ensure you are always tracking. Charge time: One to two hours.
Tracks steps, distance, calories burned and active minutes
Monitor how long and well you sleep
Wakes you (and not your partner) with a silent wake alarm
LED lights show how your day is stacking up against your goal
Slim, comfortable and easy to wear (includes large and small wristbands)

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 2.4 inch
Height : 2.4 inch
Length : 7.9 inch

Item Weight: 0.48 ounce (View shipping rates and policies)
Shipping Weight: 4.8 ounce (View shipping rates and policies)

ASIN : B00FNZ64Q6

Product Description

Never stop moving with fitbit flex. Wear this slim, stylish device all the time and get the motivation you need to get out and be more active. It tracks steps, distance, and calories burned shows you how you''re stacking up against your daily goals. At night, it tracks your sleep cycle, helps you learn how to sleep better, and wakes you silently in the morning. Access your stats anytime on your computer or from leading smartphones. Flex is your perfect companion, it''s with you everywhere. Even in the shower. Plus, it looks good no matter what you''re wearing.