Transmission of the HR signal to your HRM watch. The coded ANT+ signal allows you to train in the gym or as part of a group by preventing interference with other heart rate monitors.
Compatible with all ANT+ devices on the market from all brands: Geonaute, Garmin, Suunto, Samsung etc.
Bluetooth SMART only works with iPhone 4S, iPhone 5 and Android 4.3 phones. Attention: Check that your application is compatible with techno Bluetooth SMART technology
iPhone 4s mini, Android 4.3 mini. Check your application's compatibility
List of compatible smartphones: http://support.geonaute.com/fr-FR/bluetooth