Thanks, apparently this has been one of my less popular comments. I saw quite a few people in the comments before i posted asking if their charge/apple/whatever

Thanks, apparently this has been one of my less popular comments. I saw quite a few people in the comments before i posted asking if their charge/apple/whatever monitor was accurate and it's likely better to manually check heart rate to see if it's accurate, as opposed to going off random internet data on whether a device is trustworthy. Monitors tend to be potentially less accurate than manual apical pulse when there is an arrhythmia present, the gold standard for any cardiac is auscultation, aka stethoscope, for a full minute by trained professional. Medicine is really complex is the short version. Also Sinus Arrythmia is not uncommon.