3 HN users recommended this demo2 months2022–2024score 2
Years with an HN recommendation, 2007–2026
HN commenters cite it as evidence that Apple Watch is the most accurate consumer sleep tracker and trust the channel for its scientific approach.
The Quantified Scientist, a sleep researcher, tests Apple Watch sleep tracking against a research-grade Dreem 2 headband, comparing accuracy for sleep stages, deep and REM sleep. The review is data-focused rather than feature-focused.
“He’s a professional scientist specialising in sleep research and the reviews concentrate on data/accuracy only.” (HN, 2022)
Apparently, the Apple Watch [this video] . [link] reviews all the sleep/heart trackers and records accuracy. He’s a professional scientist specialising in sleep research and the reviews concentrate on data/accuracy only.
Scientist's data-focused review of tracker accuracy.
For anyone interested in heart rate accuracy and sleep tracking accuracy I will recommend to check The Quantified Scientist reviews . From his latest reviews of the new apple watches, heart rate is pretty much on par with chest strap and sleep tracking is also far better than anything he tested. Apple Watch : Scientific Sleep Test - [this video]
Accuracy testing of Apple Watch heart rate and sleep tracking.
Apple Watch was not tested, so for anyone interested, here are two videos by "The Quantified Scientist" creator Rob ter Horst, a postdoctoral researcher who specializes in bioinformatics (studying biology using machine learning and statistics). Apple Watch: Scientific Sleep Lab Test (Ultra vs 8) (2023) - [link] Apple Watch: Scientific Sleep Test (2022) - [this video] (Thanks to @LikelyClueless for the channel recommendation!)
Apple Watch sleep test by a postdoctoral researcher.
Kind of... Apple's sleep tracking is by far the best on the market[1]. However if your watch doesn't last many days it's a pain in the ass to use it that way, because you charge it overnight instead of tracking your sleep. [1] [this video]
Lab test showing Apple Watch sleep tracking accuracy.
I find my Apple Watch information useful. I don't remember when I fell asleep but my apple watch does. This keeps me honest about going to be too late. Additionally, when I first got it, I found that I was only getting 40 minutes of deep sleep which is why I was always somewhat tired. After adding magnesium to my diet I am getting around 70 minutes of deep sleep. I wouldn't have been able to pinpoint this without the data. The apple watch is the best sleep tracker [1] so your data might be too noisy to find results. [1] [this video]
Cited as evidence Apple Watch is the best sleep tracker.
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