I bought fitness track Mi band 5 which has can tell my heart pulse. It measure my pulse every minute. I noticed that sometimes when I sitting that my pulse is lowers very shortly to 52bpm that returns to normal value. One minute is one value on this fitness tracker, I never had two time in row that small pulse. Otherwise my pulse is on some 75-85 level, on longer walking (3 kilometars) it jumps to 120bpm sometimes. Didn't try it yet on full run. I am no athlete, should I be worried? I wore holter before couple of years ago and I read today that value of pulse range were 56 - 125bpm and doctor then told me that eveything is ok. I wore it because I had feeling of faster heart bumping, nothing too serious. Otherwise no problem.
I am 31 years old, skinny male