Get Heart Rate Intraday by Interval

This endpoint retrieves the heart rate intraday time series data on a specific date range for a 24 hour period. Intraday support can extend the detail-level response to include 1sec, 1min, 5min or 15min for Heart Rate.

3rd-party developers who want access to retrieve other Fitbit users’ Intraday data through the “Client” or “Server” application type should submit a request by filling out this form. A Fitbit developer’s personal Intraday data is automatically available through the “Personal” application type. You do not need to submit a request.

Scope: heartrate

Request

• URL
• CURL

Response

• Description
• Example Response

{
  "activities-heart": [
    {
      "dateTime": "2019-05-08",
      "value": {
        "customHeartRateZones": [
          {
            "caloriesOut": 1164.09312,
            "max": 90,
            "min": 30,
            "minutes": 718,
            "name": "Below"
          },
          {
            "caloriesOut": 203.65344,
            "max": 110,
            "min": 90,
            "minutes": 74,
            "name": "Custom Zone"
          },
          {
            "caloriesOut": 330.76224,
            "max": 220,
            "min": 110,
            "minutes": 42,
            "name": "Above"
          }
        ],
        "heartRateZones": [
          {
            "caloriesOut": 979.43616,
            "max": 86,
            "min": 30,
            "minutes": 626,
            "name": "Out of Range"
          },
          {
            "caloriesOut": 514.16208,
            "max": 121,
            "min": 86,
            "minutes": 185,
            "name": "Fat Burn"
          },
          {
            "caloriesOut": 197.92656,
            "max": 147,
            "min": 121,
            "minutes": 18,
            "name": "Cardio"
          },
          {
            "caloriesOut": 6.984,
            "max": 220,
            "min": 147,
            "minutes": 5,
            "name": "Peak"
          }
        ],
        "restingHeartRate": 76
      }
    }
  ],
  "activities-heart-intraday": {
    "dataset": [
      {
        "time": "00:00:00",
        "value": 78
      },
      {
        "time": "00:01:00",
        "value": 78
      },
      {
        "time": "00:02:00",
        "value": 77
      },
      {
        "time": "00:03:00",
        "value": 77
      },
      {
        "time": "00:04:00",
        "value": 77
      }
    ],
    "datasetInterval": 1,
    "datasetType": "minute"
  }
}
      

Note: The rate limit headers are approximate and asynchronously updated. This means that there may be a minor delay in the decrementing of remaining requests. This could result in your application receiving an unexpected 429 response if you don't track the total number of requests you make yourself.

Response Type

Note: For a complete list of response codes, please refer to the Troubleshooting Guide

Additional Information

Access to the Intraday Time Series for personal use (accessing your own data) is available through the "Personal" App Type.

Restriction: Heart Rate Intraday data cannot be retrieved for more than a 24 hour period. Any requests that expand over a 24 hour period will result with the summary data for the date range specified.

The heart rate intraday time series data is returned in the format requested. The endpoint mimics the Get Heart Rate Time Series endpoints. If your application has the appropriate access, your calls to a time series endpoint for a specific day (by using start and end dates on the same day or a period of 24 hours), the response will include extended intraday values with 1-second, 1-minute, 5-minute or 15-minute detail level for that day. Unlike other time series calls that allow fetching data of other users, intraday data is available only for and to the authorized user.

The "1sec" detail-level may not always return data in 1 second sampling outside of a recorded exercise. Sampling is more granular during exercise to provide accuracy. To fetch the granular heart rate during an exercise, query data using the GET Activity TCX endpoint.

Resting Heart Rate

Resting heart rate is a measurement of how many times the person’s heart beats per minute when completely at rest. Typically, resting heart rate ranges from 60-100 bpm, but the rate can vary based on age and fitness level. The best time to get an accurate resting heart rate reading is while the person is asleep. To calculate resting heart rate, the device takes the heart rate measurements throughout the day and focuses on periods when the person is still and well-rested, with a priority for during sleep measurements. If there isn't enough data, a resting heart rate value won't be available for that day.

Get Heart Rate Intraday by Date

Get HRV Intraday by Date