COGITO Classic Smart Bluetooth Connected Watch for Smartphones - Deep Purple Compatible with iPhone 4S up, iPad 3rd & 4th Generation, iPad Mini Running iOS 7 and Android 4.3 upwards on Samsung S3, S4, S4 Mini S4 Active, Note 2 & 3 & HTC One Email, SMS, Social messages and notification alerts Incoming or missed call alerts with Caller ID Easy to replace button cell battery - no charging required Utilizes Bluetooth 4.0, Bluetooth Smart - Low Energy + 10ATM Water Resistance