- Mar 19, 2015
Ever since updating my wife's Series 4 watch to Watch OS 7 her heart rate monitor has given what seems to be false alarms. For example it showed a spike of 167 out of nowhere, then a minute later it was normal and she didn't feel any different. Then last night it woke her up with an alarm due to a low heartrate (40). Prior to the update it never showed this. Any thoughts here?