Solved! Which one. Not a watch

Mar 24, 2018
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Hi all
I am looking for an activity monitor that can track my heart rate that isn't another watch. I have a lovely watch that was a wedding gift from my wife and I don't need or want another. Looking for a bit of tech to monitor my activity and importantly my heart rate that isn't a watch and isn't going to remind me i get 200+ emails a day. Can anyone help?