Rob ter Horst wrote a complete scientific review about the Apple watch & made a scientific sleep test & found that the best sleep tracker is the Apple watch – but this is wrong

Apple Watch : Scientific Sleep Test, 1 year ago 1 million views: And how much money did Rob ter Horst’s marketing agency make out of it? But the information of Rob ter Horst is wrong. The best sleep tracker is the gold standard for Polysomnography. This requires at least 12 channels and 22 wires: https://en.wikipedia.org/wiki/Polysomnography …