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Re:Show HN: Every Breath You Take – Heart Rate Variability T... by alfonsodev on Saturday September 16, 2023 @05:37PM (#37538963)
what about an Apple Watch ? would it be possible to create an app for it ?
Re:Show HN: Every Breath You Take – Heart Rate Variability T... by modo_ on Saturday September 16, 2023 @06:01PM (#37539176)
You might be interested in this https://www.59breaths.app/
Re:Show HN: Every Breath You Take – Heart Rate Variability T... by steve1977 on Saturday September 16, 2023 @07:02PM (#37539680)
Doesn’t let you measure HRV (so easily, as an application). If you mean using the Apple Watch as the sensor.

There’s a couple of HRV apps for iOS though.

Re:Show HN: Every Breath You Take – Heart Rate Variability T... by cancelself on Saturday September 16, 2023 @10:07PM (#37540778)
Re:Show HN: Every Breath You Take – Heart Rate Variability T... by steve1977 on Sunday September 17, 2023 @01:50AM (#37541905)
You can get HRV data after a “mindfulness” session, but not in realtime during the session, at least as far as I know. That’s what I meant with not so easily.

I also found that the results don’t match measurements with a HR strap very well, at least for me.

Re:Show HN: Every Breath You Take – Heart Rate Variability T... by jeanofthedead on Saturday September 16, 2023 @07:56PM (#37540055)
The Apple Watch measured HRV when using the Breathe function in the Mindfulness app. Apps like Health, Training Today, and HRV Tracker can help visualize these readings.