SelfSync

Heart rate message

Heart rate messages store heart rate data recorded by a chest strap while it was not connected to the watch (during swimming for instance), and merged back into the activity afterwards.

FIT name
hr
Global message number
132
JavaScript SDK key
hrMesgs
Fields
7

Fields

  • timestampDateTime

    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.

  • Fractional part of the timestamp.

  • time256Float64

    Time with a 1/256 second resolution.

  • filteredBpmUint8[]bpm

    Heart rate values.

  • eventTimestampFloat64[]s

    Moments of the heartbeats.

  • Moments of the heartbeats, in a compact format decoded into eventTimestamp.

  • 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