Input data to smartphone and portable devices. Track steps, distance traveled. Calories burned. Sweatproof design. Traces steps, calories & distance. Record & calculate calories burned. LCD display. Sweatproof band. Free mobile app. App compatible with iOS & Android. App compatible with iOS 8.0 or higher. Android 5.1 or higher. App shows your daily, weekly, and monthly progress, Alkaline Zn-mm button battery Ag10 (included). Package Contents: Activity tracker, user's manual and 1 year warranty card (for details, visit www.sakar.com/warranty/) or call 1800 592 9541. www.vivitar.com. Support: 800 592 9541. Made in China.