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You would think it can track sleep

mcat1906
26 days ago

I purchased this last week and have have worn it for around 7 nights.  So far it has successfully tracked sleep 3 out of those  7 nights, that's about 42% or the time.  The last 2 nights, it has tracked sleep 0 times.  This is leading to all metrics now being incorrect, since there is no HRV, no Sleep score, etc.  So all of my training metrics are now completely inaccurate.  Seriously how can a device with one single purpose work so poorly.  Because of the cascading effect this data has on the overall metrics, it's back to wearing my watch for me. 

  • 0 15 days ago

    Hey, if it's any reassurance for you, there are a lot of us having a positive experience with the accuracy of the device. I had similar issues as you described at the start. Here's the list of things that ultimately resolved them. Listing everything I can think of in the hopes of helping you:

    1) Ensuring the device is sufficiently charged

    2) Not wearing my watch to bed and taking it off before my 'scheduled sleep' period, or if it started while my watch was on, taking my watch out of sleep mode before taking it off. 

    3) Storing my watch 'sensor up' or leaving it charging over night

    4) Storing the Index Sleep Monitor 'Sensor up' when not in use. Before putting it on, I wake it with my thumb over the sensor until the lights turn on. 

    5) Ensuring its snuggly fit with the plastic clip on the top of my arm and the sensor on the outside of my bicep. 

    6) Ensuring the Garmin Connect app has full permissions to run in the background on my phone and keeping Bluetooth on

    7) Check if you're on the current firmware (3.71) by accessing the Sleep Index device settings while it's awake and connected to your phone. https://www8.garmin.com/manuals/webhelp/GUID-4462687B-8DF5-4719-872E-E16754F9D4B0/EN-US/GUID-4BAFDB96-1102-466B-AFC6-C9AF7E59059F.html 

    8) checking that the sleep index sensor is clean and that any plastic protective film has been removed (it should have a glass like feel).

    I've been using this since early August and initially had some issues but it's been stable and reliable for several weeks now. This includes body battery and consistency of HRV and RHR versus when I used my watch (VENU 3). 

    It's been a game changer and considerably more consistent/accurate than the watch which would invariably get pushed into positions while sleeping that would cause the sensor to loose contact with my skin. 

    My sleep schedule varies randomly from starting between 10pm and 4am and ending between 5am and 11am. Despite this it's pretty much always captured an accurate sleep. 

    My only anecdotal advice is to put it on whichever arm you think you'll be least likely to have under your body while sleeping. 

    Hope some of this helps!