4iiii Viiiiva Heart Rate Monitor

Being 10-times more sensitive than most heart rate monitors, and 5-times more responsive, the 4iiii Viiiiva is one of the most advanced heart rate monitors on the market. With advanced beat-to-beat data, the Viiiiva measures variabilities within your heart rate so you can reliably and consistently track even slight surges on the go. Thanks to the activity logging software, this unit saves up to 65 hours of riding data, which can be transferred to other devices and apps to help track your long-term performance. Pairing this unit with other compatible devices is a breeze. As the 4iiii Viiiiva is compatible with ANT+ and Bluetooth devices, you can easily pair this heart rate monitor with your existing...

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Best Price: £74.99 from ProBikeKit UK