HR monitor with NHR

A HR monitor that shows also an experimental metric: Normalized Heart Rate. Based on the more or less lineal correlation between power and HR (https://www.cyclinganalytics.com/blog/2013/06/heart-rate-vs-power-chart) the same principles used to compute NP are used to compute the experimental metric NHR. The app shows current HR (left) and current NHR (right). The app also shows HR zone color codes according to Garmin Connect user profile. In this app the threshold zone is divided in subthreshold and threshold.