Heart Rate Belt Sigma R1 Duo Comfortex+ ANT+/Bluetooth Smart

The R1 DUO heart rate transmitter uses 2 different transmission technologies. The data is sent to the ROX GPS 11.0 and 12.0 via ANT+. It can also be shared with a smartphone via Bluetooth Smart. All sport apps that support Bluetooth SMART READY technology and use heart rate data can display the R1 DUO's values. Compatibility: iOS devices: iPhone (4s and above), iPod touch (5th gen. and above), iPad (3rd gen. and above), iPad Mini, iPod Nano (7th gen. and above) Android devices: all devices with Bluetooth® SMART READY technology and Android OS 4.3+ Transmits the following up-to-date values to devices with Bluetooth® SMART READY technology: ECG-accurate heart rate RR intervals in milliseconds for determining the heart rate variability Battery status Battery life: ~ 1.3 years Waterproof to 3 Bars COMFORTEX+ textile chest belt ultra-light, comfortable, well-fitting textile chest belt laminated electrodes for better skin contact because of a greater moisture washable on a hand wash cycle and in a wash bag at up to 30° C