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Sleep tracking

matt_williams76
over 4 years ago

Hi I've have had the venu a few months now.  I also have a whoop  and priority to venu I had vivoactive 3 .

Sleep tracking.

The dive gets the times pretty much spot on. But it tells me I have little to no rem every nights. The whoop tells me I get about 2 hrs most nights and my old vivio said similar to whoop. 

Any ideas or is the tracking just crop. 

I have pulse ox on during sleep 

Thanks

  • 0 over 4 years ago

    I just got my Venu and the first night's stages sleep tracking is consistent with what I get from Fitbit Versa.  The Venu didn't get the times just right, as it registered as sleep my lying still reading a couple of articles on my phone and then listening to a book before I dozed off, and it added about 15 minutes of sleep to the morning, during I was just lying still, but awake.  But REM and Deep Sleep were consistent with Fitbit.

    Keep in mind that sleep stages are largely inaccurate in all wrist-based trackers -- there are a couple of studies on Fitbit, which was considered the best wrist-based device until recently, that estimated just about 50% accuracy for REM and a little better for Deep Sleep.  It seems like Light Sleep is grossly overestimated in these devices.

    Does anyone know for certain what parameters other than movement and HRV does Garmin use to estimate stages and sleep duration?  Are the oxygen sensor, plain HR, and breathing used at all?

  • 0 over 4 years ago

    Is there a way to adjust the sleep sensitivity of the Venu? 

    Over the short time I've used it appears overly generous in counting sleep, registering time when I am clearly awake but relatively motionless as REM.

  • 0 over 4 years ago in reply to 4757287
    4757287 said:
    Is there a way to adjust the sleep sensitivity of the Venu? 

    No.