Scosche Rhythm+ Ant+ Heart Rate Monitor and Biometric Sensor
 
SCOSCHE - Rhythm+ Armband Heart Rate Monitor | Hyper-Accurate | Built-In Bluetooth SMART & ANT+ Functionalities | Neoprene Armband | Sweatproof & Waterproof | Compatible with iPhone & Android Apps 
 
 Heart rate measurements with a high degree of accuracy
    Monitoring calories burned, distance and pace
    Comfortable armband, no chest strap required
 
Conditions: very little usage