I wore the cheapest fitness tracker I could find on Amazon, an Amazfit, for a while. It believed it could distinguish all the phases of my sleep and give me a colorful chart of my night every morning. The charts appeared reasonable but there was never anything I could do about it, the tracker's only consistent advice was to try to go to bed at a regular and reasonable time. I got tired of wearing and caring for the band so it's in a drawer now somewhere.
My greatest disappointment with the band, however, turned out to be a mistake. I though the pulse readings it was giving me didn't make any sense, because they bounced around all over the place. But the actual problem was my atrial fibrillation. My pulse rate was bouncing around all over the place. Finally got that fixed last fall. -- rec -- On Wed, Mar 20, 2024 at 8:47 AM Alexander Rasmus <alex.m.ras...@gmail.com> wrote: > Nick, > > If you look around in google scholar you can find comparisons between > smart watches and medical devices for monitoring sleep stages, e.g., > https://mhealth.jmir.org/2019/6/e13384?utm_campaign=JMIR_TrendMD_0&utm_medium=cpc&utm_source=TrendMD > > In general, you should be fairly skeptical of specifics but trends may > still be useful. The only way to establish whether it's reliable in your > case is through detailed comparison between your own observations of sleep > behavior/outcomes and the watch. This is likely to be a useful exercise > regardless. I use one, and the sleep quality number is generally fairly > good. > > Jochen, I am sorry for your loss. > > Best, > Alex > > On Tue, Mar 19, 2024 at 9:12 PM Nicholas Thompson <thompnicks...@gmail.com> > wrote: > >> Everybody I know sleeps badly. Has any of you had any lu from >> heartrate? ck with a sleeptracker. Did it teach you anything you did not >> already know? I borrowed a fit bit from my daughter and it tells me my >> sleep efficiency is lousy, and I don't bet much rem or deep sleep. Does it >> know what it is talking about. Can you get all of that. >> >> Any experience to share out there? >> >> Nick >> -. --- - / ...- .- .-.. .. -.. / -- --- .-. ... . / -.-. --- -.. . >> FRIAM Applied Complexity Group listserv >> Fridays 9a-12p Friday St. Johns Cafe / Thursdays 9a-12p Zoom >> https://bit.ly/virtualfriam >> to (un)subscribe http://redfish.com/mailman/listinfo/friam_redfish.com >> FRIAM-COMIC http://friam-comic.blogspot.com/ >> archives: 5/2017 thru present >> https://redfish.com/pipermail/friam_redfish.com/ >> 1/2003 thru 6/2021 http://friam.383.s1.nabble.com/ >> > -. --- - / ...- .- .-.. .. -.. / -- --- .-. ... . / -.-. --- -.. . > FRIAM Applied Complexity Group listserv > Fridays 9a-12p Friday St. Johns Cafe / Thursdays 9a-12p Zoom > https://bit.ly/virtualfriam > to (un)subscribe http://redfish.com/mailman/listinfo/friam_redfish.com > FRIAM-COMIC http://friam-comic.blogspot.com/ > archives: 5/2017 thru present > https://redfish.com/pipermail/friam_redfish.com/ > 1/2003 thru 6/2021 http://friam.383.s1.nabble.com/ >
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