RHR or other HR measure
It is good to see that Cronometer pulls in a lot of the cardiac data from Garmin, Samsung or Google fit. However, it seems to leave this inaccessible to the user. If we wish to use heart rate in a chart we seem to get "average HR" but sometimes it seems to use a random HR measure from that day, The "resting heart rate" (RHR) which all these gadgets supply is probably the most useful measure (of general fitness) and teh ability to use this in the trends/charts area would be very valuable. An obvious graph would be RHR and weight.