I tested the Apple Watch 7 against a scientific sleep EEG device, and tested the heart rate, HRV, SpO2 and GPS accuracy. Subscribe to my weekly Newsletter(!) on www.robterhorst.com
Instagram:   / quantified_scientist  
Twitter: @QuantifiedRob

👇Amazon Affiliate* (paid) links. Supports the channel, doesn't cost you any more!👇
Apple Watch 41 mm: https://geni.us/AppleWatch7_41
Apple Watch 45 mm: https://geni.us/AppleWatch7

👇 $30 off any new WHOOP membership, affiliate* (paid) link, supports the channel!👇
join.whoop.com/QuantifiedScientist ($30 off any new WHOOP membership)

Fitbit Charge 5: https://geni.us/FitbitCharge5
Fitbit Luxe: https://geni.us/Fitbit_Luxe
Fitbit Charge 4: https://geni.us/wjAfjU
Fitbit Sense: https://geni.us/CSfYQE8
Fitbit Inspire 2: https://geni.us/iZHlb

📸My Gear* (paid links, supports the channel and doesn’t cost you any more)📸
Camera body (main): https://geni.us/SonyA6600_body
Camera lense (main): https://geni.us/sony_sel_18-135
Camera (B-roll): https://geni.us/CanonEosM50MarkII
Light: https://geni.us/Godox_VL150
Softbox: https://geni.us/NiceFotoSoftbox
Light stand: https://geni.us/WalimexLightstand

The EEG tracker I used is called the Hypnodyne ZMax: http://hypnodynecorp.com/ 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:
   • This mad scientist scanned his brain ...   ⏱️

Timestamps:
00:00 General intro
00:45 Results: Heart Rate Test
03:56 Results: Heart Rate Variability Test
06:01 Results: SpO2 Test
07:16 Results: Sleep Test
09:51 Results: GPS Test
12:02 Conclusions
12:50 Buy The Apple Watch 7?

🎵Music🎵
(1) Not Without the Rest by Twin Musicom is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/...)
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)
Person Waking up Video by Ba Tik from Pexels