Sleep Cycle App Review: Apple Watch Science Test – YouTube

Sleep Cycle App Review: Apple Watch Science Test



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  • Video Views: 162781
  • Published On: 2021-01-02 20:15:01
  • Video Published/Author: The Quantified Scientist
  • Video Duration: 00:10:55
  • Source: Watch on YouTube


I tested the sleep tracking of the Sleep Cycle App on my Apple Watch Series 6 against a scientific EEG device. For updates subscribe to my weekly Newsletter(!) on www.robterhorst.com
Instagram: https://www.instagram.com/quantified_scientist/
Twitter: @QuantifiedRob

👇Amazon Affiliate* (paid) links. Supports the channel, doesn’t cost you any more!👇
Apple Watch 44mm: https://geni.us/7Dom
Apple Watch 40mm: https://geni.us/0gNGeO

*My opinions are completely my own. However, I do earn a small commission if you purchase any of these devices via my affiliate links. It does not cost you any more money if you use these links.

The EEG tracker I used is called the Hypnodyne ZMax: http://hypnodynecorp.com/ from @HypnoDyne Corp

📹Apple watch videos📹
Test: https://youtu.be/0Ub7qmZz9ec

📹First Garmin Venu Sq Video📹
https://youtu.be/LiwX2TxYpQo

📹Oura Ring videos📹
Sleep Test: https://youtu.be/atWcp6FmnbE
HRV Test: https://youtu.be/AK47cav1i28
Temperature Test: https://youtu.be/VIfvRzP79Bs

📹Fitbit Sense videos📹
First look review and test: https://youtu.be/w6D_uUDUP2k
Heart rate: https://youtu.be/7-u8VTmeDF0

📹Withings Scanwatch videos📹
Unboxing and first review: https://youtu.be/swQLhrdxEkk
Sleep test: https://youtu.be/lWPxpdUjLBI
Heart rate test: https://youtu.be/KjemOE2eHcY
Q&A with Withings: https://youtu.be/KtRh-_9kXgM

⏱️This comparison is part of a larger project where I spend over 11 hours a week tracking everything in my life. If you’d like to know more:
https://youtu.be/8iPWu0Cbq14 ⏱️

Timestamps:
00:00 Intro
00:50 Sleep Cycle App Intro
02:06 Sleep Test Setup Explained
03:20 Results: Main Results
07:03 Results: Overview Analysis
08:08 Result Interpretation

🎵Music🎵
(1) Not Without the Rest by Twin Musicom is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Artist: http://www.twinmusicom.org/
(2) Wonders by JVNA
(3) Can’t Sleep (YouTube Audio Library)
(4) Classique (YouTube Audio Library)
(5) Blurry Vision (YouTube Audio Library)

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20 comments
  1. Hey Rob, I am hoping you would revisit the experiment with sleep cycle app but without an apple watch connected, just purely from the phone's sensor. Been using the app for a year and would love to see if the readings are anywhere near accurate. Thanks!

  2. I also have a scientific background and I’m just amazed at the quality of this video. This was done with better methods than many scientific articles! And a discussion about limitations and future avenues at the end?!? A-MA-ZING!

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