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Apple Watch : Scientific Sleep Test

The Quantified Scientist · 1.1M views · 2022-09-05 · 18:20

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Overview

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.

On Hacker News

HN commenters cite it as evidence that Apple Watch is the most accurate consumer sleep tracker and trust the channel for its scientific approach.

Recommended by 3 HN people across 2 months · HN mentions 2022–2024

Topics

Fitness, sleep & longevityConsumer devices & gadgets
Search by tags
apple watchsleep trackingwearablesdreem headbanddevice review

What people said

CharlesW · 2024-01 · Recommendation

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) - [VIDEO] (Thanks to @LikelyClueless for the channel recommendation!)

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tiew9Vii · 2022-09 · Recommendation

Apparently, the Apple Watch [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.

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zx10rse · 2022-09 · Recommendation

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 - [VIDEO]

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Sources

Video by The Quantified Scientist, played through YouTube.

Data and selection notes

HN summaries and labels may contain AI errors. HN dates refer to discussions, not video publication.

HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

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