The Kinetic inRide HR Strap uses Bluetooth Smart communication to wirelessly pair with the Kinetic inRide App—providing you with heart rate data so you can train more effectively. The strap will also work with other 3rd party apps using Bluetooth Smart for device pairing. - Compatible with iPhone 4s, 5 series, iPhone 6 and iPad 3, 4, Mini and the iPod Touch 5th generation (The Kinetic inRide App is not iPad specific)