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Got a Fitbit? Thought you were achieving your goals? Better read this

Phil W

"Why medical grade when you can easily count it with a finger and another timer?"

Yes that's just fine when you're sat still or just walking along but I'd be beyond extremely impressed if you can accurately count your pulse with your finger while engaged in strenuous exercise that has got your pulse into the 130 or 140 range, even more so if you could do it while comparing it to the read out on your watch.

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