SelfSync

HSA heart rate data message

Heart rate data recorded by the optical sensor of the watch, as exposed to Garmin Health SDK applications.

FIT name
hsa_heart_rate_data
Global message number
308
JavaScript SDK key
hsaHeartRateDataMesgs
Fields
5

Fields

  • timestampDateTimes

    Moment the message refers to, in UTC. FIT stores it as seconds since the FIT epoch (December 31, 1989, 00:00:00 UTC); decoders usually expose it as a regular date.

  • Length of the interval covered by each value of the arrays in the message, in seconds.

  • statusUint8

    Status of the sensor: 0 while searching for a signal, 1 when locked.

  • heartRateUint8[]bpm

    Heart rate for each interval. 0 when no value.

  • mesgNumString

    Global message number identifying the kind of message. Decoders use it to know which profile to apply to the data.

Other health and monitoring messages

See all the FIT messages