I've just also submitted this as a feature request at https://www.garmin.com/en-US/forms/ideas/, but I think it would also help for more people to comment and vote this thread up so Garmin can see that there is a large demand for this. There are also older forum posts asking for Oura support too, but I wanted to bring new attention to it.
Here is what I wrote to Garmin in my feature request:
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I have Garmin Fenix 6 Pro watch (but this feature request can be for other models as well).
For the price of this watch, it really should have better sleep tracking. Perhaps it's a limitation that the sensor is on the wrist (versus an Oura ring for example which is worn on the finger)
But the bottom line is it shouldn't matter - you should let your users have the choice of using Garmin data OR a 3rd part sleep tracking app if they prefer. PLEASE enable compatibility with the Oura app to pull in sleep data from Oura instead of the watch for those that prefer this.
Wearing a bulky watch to sleep is actually negatively affecting my sleep in a few ways (it's uncomfortable), and the green lights when I move my arm wake me up at night and bother my partner as well.
The data is not as accurate as the Oura ring's data, and in testing the watch while sleeping, it recorded my sleep the first night, but for some reason not the 2nd night (I didn't disable or make any changes).
In any case, some people prefer sleep data from a different app/source and I would like to request that you allow us to integrate Oura sleep data into Garmin Connect.
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I forgot to mention that Oura can sync with Google Fit and Apple Health and maybe some others, so I'm sure it wouldn't be too difficult to find a way to use Oura data in Garmin Connect. Another way would be to allow us to sync certain data from Google Fit, Apple Health, etc back into Garmin Connect as a workaround and get sleep data that way.
I like the Garmin ecosystem but it should not be closed/exclusive. Garmin devices have their strengths (and weaknesses).
