IFit Link Activity Tracker Asphalt Grey Soft, adjustable wristband. Water resistant. Tracks steps, distance, workouts, sleep and calories burned. Four OLED lights show progress; each light will flash as you get 25% closer to reaching your goal. Data is housed in a small, removable pod, letting you switch between bands or slip it into your pocket. Sync wirelessly with Bluetooth&reg; 4.0 BLE technology. Works seamlessly with the iFit app; enter your meals from an expansive food library, or use the built-in barcode scanner; set specific goals; access easy-to-read charts of your activity. Compatible with the iPhone&reg; 4s and later, iPod Touch&reg; 5th Gen and above, and Android&reg; 4.3 and above (not included). Rechargeable battery via the USB power stick. One-year manufacturer's warranty. Model: IFLINK115. Made in China.