Train more effectively with the iFIT SmartBeat™ Forearm Heart Rate Monitor. This Bluetooth®-compatible heart rate monitor senses your heart rate through optical PPG technology for the most reliable heart rate tracking yet. Use it for runs and workouts on the go, or sync it to the iFIT app or your machine to use with ActivePulse™, iFIT’s patented feature that uses your heart rate to automatically adjust your workouts based on your target heart rate zone. The adjustable, non-slip band allows you to wear the monitor on your forearm or upper arm. Specs Adjustable, non-slip, one-size-fits-all band Wear on forearm or upper arm Magnetic charging cable 30 hours of battery life per charge LED power button 1-year warranty Tech Optical PPG Heart Rate Sensing Technology Bluetooth® connectivity Rechargeable lithium-ion battery Syncs to iFIT app and equipment