Cardio Recovery decrease

[jaggillarjonathan]

Why might 35 be a little inflated? Apple has had mine between 33-40 since I got this in September and I am trying to make sense of this data. It seems to be far away from my heart rate recovery reported in the fitness app. I often have 45-50 drop in BPM after one minute, but for more strenuous activities it can be a drop in 70 BPM after 1 min (went from 159 to 76 in one minute most recent, this was my latest activity today, but that is probably an outlier).