So I've replaced my strap and put a transparent sticker over the heart rate monitor for about 2 weeks now. the strap has fixed the issue around my wrist but the mark where the monitor is came back after about a week. I'm wondering if this may be the laser itself firing that may be causing the issue. I've looked onto it quickly and theres plenty of forums and websites talking about this from a few manufacturers, including Garmin, Fitbit and Polar. I'm going to let my current rash settle back down again, i've turned off the heart rate monitor, and will see if the issue comes up again.
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