A Garmin Connect IQ meditation app that tracks as an activity the heart rate, HRV, stress and provides vibration alerts.

• ability to save the session as a Connect IQ activity
  • activity type Meditating or Yoga
• ability to configure multiple meditation/yoga sessions
  • e.g. a 20 min session with 1 min recurring alerts, triggering a different alert on the 10th minute
  • each session supports interval vibration alerts
  • interval alerts can trigger from a few seconds up to few hours
• HRV (Heart Rate Variability)
  • RMSSD - Root Mean Square of Successive Differences (beat-to-beat intervals)
  • pNN20 - % of successive beat-to-beat intervals that differ by more than 20 ms
  • pNN50 - % of successive beat-to-beat intervals that differ by more than 50 ms
  • beat-to-beat interval - reading coming directly from the watch sensor
  • HRV Successive Differences - difference between current and previous beat-to-beat intervals
  • SDRR - Standard Deviation of beat-to-beat intervals
    • calculated from the first and last 5 min of the session
  • HRV RMSSD 30 Sec Window - RMSSD calculated for consecutive 30 second intervals
  • HR from heartbeat - beat-to-beat interval converted to HR
• stress tracking
  • Stress - summary of the the average stress during the session
  • HR Peaks 10 Sec Window
    • internal metric for calculating stress
    • tracks in overlapping 10 Sec Windows Max HR for each window
    • HR calculated from beat-to-beat interval.
• summary stats at the end of the session
  • tracks the overall min, avg and max HR
  • Stress
  • HRV

• Vivoactive 3, Vivoactive 3 Music
  • app store link
  • from vivoactive3-publish branch
• Round Watches that support Connect IQ >= 3.0
  • app store link
  • from round-watches-publish branch
  • Most round watches other thant Vivoactive 3 are supported

• Font for duration picker Google Roboto (Apache License v2.0)
• Status Icons - Font Awesome free (SIL OFL 1.1 License)