Transform Your Smartphone into a Powerful Bike Computer.
- Reads EKG-accurate heart rate data, with no chest strap required
- Sends heart rate data to smartphone apps, GPS watches, and bike computers via Bluetooth Smart 4.0 and ANT+
- Transmits data from existing ANT+ speed and cadence sensors directly to iOS smartphone apps
- 5 configurable heart rate zones allow you to customize your workout
- Fits wrist sizes 149-208mm / 5.9”-8.2”
- Water resistant up to 30m (3 ATM)