Keep racing with the soleus gps pulse ble wrist based heart rate monitor the gps pulse ble measures your heart rate while on your wrist no need for a chest strap the rechargeable unit allows you to customize 3 viewable lines of data that track your speed distance pace and heart rate set up to 6 interval timers count calories and store and review your data for later review upload your data via bluetooth using the dedicated soleus app on your mobile device