Sp02 issues. Getting fed-up with my Sp02 reading only randomly syncing with the app. There doesn't seem to be any logic to it, as it doesn't seem to matter what I do. During the last 4 weeks my Sp02 reading has only been syncing with the app 2 or 3 times a week. Prior to that it would be missing possibly once or twice a week........ big difference! This needs sorting out... very disappointed!