COOKOO Smart Bluetooth Connected Watch, Blue Notifications for incoming calls, missed calls, Facebook post and messages, calendar reminders and more Compatible with devices with Android 4.3 and 4.4 compatibility and iOS 6 and 7 with iPhone 4S, 5 and 5S. Alerts when your device is out of range, or at low battery level Locate your phone with the press of a button from your COOKOO watch 5ATM Water resistant and Up to 1 year of battery life for Connected Display and up to 3 years of battery life for analog watch movement