Garmin Fenix 5, Firmware Version 9.20: ‘REM’ Sleep Monitoring.
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Well, it is showing something. Not sure whether it is right, BUT there is definitely REM in there. Not sure how I can check its veracity short of wearing another monitor — and to be fair, I don’t really care. As you can see I don’t get that much sleep BUT I do sleep better than a baby!
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