IDOL U80 Bluetooth 4.0 Smartwatch Watch Mobile Phone Sportswatch Pedometer for Smartphones IOS Apple iPhone 4/4S/5/5C/5S/6/6 Puls Android Samsung S3/S4/S5/S6 Note 2/Note 3/Note 4 HTC Sony [Upgraded Version of U8] Bluetooth version: 4.0 Multifunction: Dial, short message, phone book, call history, BT notification, BT music, Long-distance capture, pedometer, drink, rest, sleep monitor, anti-theft, power save mode etc NOTE 1: All functions are compatible with andriod smartphones, such as Samsung S3/S4/S5/Note 4/Note 3, HTC, Sony and so on NOTE 2: Most of functions are compatible with iPhone 4/4S/5/5S/6/6 Plus, EXCEPT FOR 'Messages', 'BT notice' and 'BT camera'