I tested the Amazfit GTS 2 Mini against a scientific sleep EEG device, and tested the SpO2, heart rate and step counting accuracy. Subscribe to my weekly Newsletter(!) on www.robterhorst.com
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The EEG tracker I used is called the Hypnodyne ZMax: [ Ссылка ] from @HypnoDyne Corp

⏱️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:
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Timestamps:
00:00 General intro
01:04 Amazfit GTS 2 Mini Basic Info
02:04 Results: Sleep Test Setup
02:43 Results: Sleep Test Comparison
06:06 Results: Sleep Test Overview
09:00 Results: Sleep Versus Other Devices
09:35 Results: Heart Rate Test
14:16 Results: Heart Rate Versus Other Devices
16:32 Results: Oxygen Saturation (SpO2)
19:31 Results: Step Test
20:39 Conclusions
21:30 Buy The Amazfit GTS 2 Mini?
22:16 Limitations

🎵Music🎵
(1) Not Without the Rest by Twin Musicom is licensed under a Creative Commons Attribution license ([ Ссылка ])
Artist: [ Ссылка ]
(2) Wonders by JVNA
(3) Can’t Sleep (YouTube Audio Library)
(4) Classique (YouTube Audio Library)
(5) Blurry Vision (YouTube Audio Library)
Person Waking up Video by Ba Tik from Pexels

Many thanks to Rob and Frederik (and his FUN:D SCIENCE FOUNDATION) for their help with the OpenBCI device.

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