Published On Dec 10, 2023
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Timestamps:
00:00 Quick Intro
02:11 Sleep Test 1 : 3 Nights On Me
06:33 Sleep Test 2 : Compared To Other Devices
09:22 Sleep Test 3 : 3 Nights On Others
11:52 Sleep Test 4 : Scientific Paper (136 people)
12:56 Sleep Test : Overview
15:10 Conclusions and Limitations
Out of all sleep trackers I’ve tested, the Polar Verity Sense is the most accurate device I’ve tested so far when compared to the gold standard of sleep tracking! However, you do need a special algorithm to actually get these results, which was developed at the University of Salzburg. In my overview graph of sleep stage tracking, it ends up all the way up here, seemingly even outperforming the Apple Watch, though just slightly. This algorithm is implemented in an app, which I tested in a sleep lab against the gold standard of sleep stage tracking, and it did really well, though of course it still has some issues, as you will see later. Also, though the Polar Verity Sense is quite inexpensive at about 90 dollars, you do need a subscription to the app, which isn’t cheap at about 20 to 25 euros a month. But you can judge yourself if the performance is good enough for you, let’s get to it!
As you might have noticed, I did not mention the name of this app yet, and that’s because it is called Nukkuaaa, which is one of the worst names to advertise on radio, and apparently it means Sleep in Finnish. And, no you’re not crazy, the University of Salzburg is actually in Austria, not Finland. But, name aside, I was able to test this app because Prof. Manuel Schabus, who developed this app, invited me to his sleep lab. They actually also published a scientific paper on the app, but he understood I needed to test it myself so we can see if it is any good. So I proposed to sleep at his lab for three nights and compare the app against the gold standard of sleep stage tracking, and to additionally test the app on Theresa and Chris for another 3 nights total. So in total we have 6 nights of data to work with. In this video, I’ll start by looking at how the Nukkuaa performed on me, so we can also compare its performance to dozens of other devices, and after that we’ll look at Theresa’s and Chris’ data, and finally we’ll take a look at the scientific paper that Prof Schabus and his colleagues wrote. What is important to mention is that the thing that sets the Nukkuaa app apart from the competition, is the personalized sleep coaching, where they try to turn your smartphone and wearable into a home sleep laboratory. I think this is where all companies should be headed, but I’ll discuss that later in this video.
