Currently using @ouraring @Apple watch @PolarGlobal H10 @hrv4training What are you using to support your health / fitness? #health… | Instagram
![Marco Altini, PhD on X: "got a whoop sensor to test a couple of things: 1) ability to capture RR intervals when linked to a third-party app (e.g. HRV4Training for a morning Marco Altini, PhD on X: "got a whoop sensor to test a couple of things: 1) ability to capture RR intervals when linked to a third-party app (e.g. HRV4Training for a morning](https://pbs.twimg.com/media/FQN4XziXsAENmUY.jpg:large)
Marco Altini, PhD on X: "got a whoop sensor to test a couple of things: 1) ability to capture RR intervals when linked to a third-party app (e.g. HRV4Training for a morning
![Apple Watch update: improved HRV analysis using iOS13, Watch OS6 and RR intervals available in Health Apple Watch update: improved HRV analysis using iOS13, Watch OS6 and RR intervals available in Health](http://www.hrv4training.com/uploads/1/3/2/3/13234002/apple-watch-hrv-hrv4training-rr-intervals-rmssd_orig.png)