inDigi Bluetooth Smart Wrist Black Watch Phone for Samsung Galaxy S4 S5 Note3 US Seller [US Seller] Universal Compatibility  iOS or Android! The A18 SmartWatch is Capable of syncing with either platforms! Ringtone & Vibration  A18 rings and vibrates, showing incoming phone numbers. Answer directly from your wrist - no more missed calls Heart Rate Sensor & Calorie Counter & Pedometer - Kick Start your health by keeping track of your BPM while working out and your steps taken throughout the day + calories burned Synchronizes Phonebook  so contacts can be consulted on the watch instead of the smartphone and you can keep the smartphone in the pocket. Synchronizes Messages - The A18 will notify you of incoming messages which can be viewed on the watch, and also displays emails, and other notifications