Sigma R1 Heart Rate Monitor & Chest Strap with Bluetooth Transmitter

The Sigma R1 Heart Rate Monitor & Chest Strap with Bluetooth Transmitter relays the heart rate via energy-saving Bluetooth SMART technology. This enables the R1 to communicate with multiple smartphones, computers and sports devices. All sport apps that support Bluetooth SMART READY technology and use heart rate data can display the R1’s values.

Ultra-lite, comfortable, well-fitting cloth chest belt

Laminated electrodes for better skin contact

ECG-accurate heart rate

RR intervals in milliseconds for determining the heart rate variability

Battery status

COMFORTEX+ textile chest belt

Ultra-light, comfortable, well-fitting cloth chest belt

Laminated electrodes for better skin contact requiring only slight dampening

Machine washable on delicate cycle in cold water (inside a lingerie bag)

Click here to download a PDF copy of the Sigma R1 Heart Rate Monitor user's manual.

⚠ WARNING California Residents: Proposition 65 Warning