MOTIVATION ON YOUR WRIST Earns NikeFuel, a universal way to measure movement for all kinds of activities Tracks the intensity of your workouts and enables sleep tracking with Nike+ Sessions Counts steps and tells time Displays your progress in real time Keeps you and your friends motivated through Nike+ Groups (available for iOS only) Syncs with your iOS or Android device (Nike+ FuelBand Android app available in English only) WHAT'S NEW Bluetooth 4.0 technology allows you to stay constantly connected to your phone, receiving feedback and motivation as you need it. Win the Hour: Receive Move reminders that give you an extra push to get you moving every hour. Nike+ Sessions: Keep track of the intensity of your workouts through NikeFuel so you can understand what activities earn you the most. Now compatible with Android devices running on Jelly Bean 4.3 and above Learn more . PRODUCT DETAILS Available in three sizes: small (5.79 inches / 147mm), medium/large (6.77 inches / 172mm) and extra-large (7.76 inches / 197mm). Includes two easy-to-insert links (.32 inches / 8mm and .63 inches / 16mm) for a fine-tuned fit USB charging cable and sizing tool included Ambient light sensor detects environmental light levels and adjusts accordingly Bluetooth 4.0 pairing to smart phones (for use with the Nike+ FuelBand app for iOS 6.1 and above, iPhone 4S and above, iPod Touch 5th generation and above, and Android devices running Jelly Bean 4.3 and above) Optimized for the web (Mac OS X v10.6 and above / Windows XP, Vista, 7 and 8). Works on Android and iOS devices (iPhone 4S and above, iPod Touch 5th generation and above). Android experience (available in English only) optimized for the following devices: Samsung Galaxy S3, S4 and S5, HTC One, Nexus 5 and Moto X Water-resistant ORDERS OF MORE THAN TEN To request an order for more than ten Nike+ FuelBand SEs, please contact Customer Service at 1-800-806-6453. WARRANTY INFORMATION The Nike+ FuelBand SE comes with a one-year limited warranty. See details . STILL HAVE QUESTIONS? For answers to frequently asked questions, see the FAQs page .