> ## Documentation Index > Fetch the complete documentation index at: https://docs.spikeapi.com/llms.txt > Use this file to discover all available pages before exploring further. # Metric Types and Units > This document provides a comprehensive overview of all metrics, detailing their providers, descriptions, units, and number of decimals for output precision. The table below summarizes the key features supported by each metric. | **Metric** | **Providers** | **Description** | **Unit** | **Precision** | | :---------------------------------- | :----------------------------------------------------------------------------------------------------------------------------------------------------------------------- | :------------------------------------------- | :---------- | :------------ | | ascent | `garmin` `polar` `suunto` `huawei` `coros` | Total ascent | meters | 2 | | bedtime\_duration | `fitbit` `oura` `withings` `huawei` `ultrahuman` `samsung_health_data` `luna` | Bedtime duration | ms | 0 | | blood\_pressure\_diastolic | `apple` `health_connect` `garmin` `withings` `huawei` `samsung_health_data` `omron_us` `omron_eu` | Diastolic blood pressure | mmHg | 2 | | blood\_pressure\_diastolic\_max | `apple` `health_connect` `garmin` `withings` `huawei` `samsung_health_data` `omron_us` `omron_eu` | Maximum diastolic blood pressure | mmHg | 2 | | blood\_pressure\_diastolic\_min | `apple` `health_connect` `garmin` `withings` `huawei` `samsung_health_data` `omron_us` `omron_eu` | Minimum diastolic blood pressure | mmHg | 2 | | blood\_pressure\_systolic | `apple` `health_connect` `garmin` `withings` `huawei` `samsung_health_data` `omron_us` `omron_eu` | Systolic blood pressure | mmHg | 2 | | blood\_pressure\_systolic\_max | `apple` `health_connect` `garmin` `withings` `huawei` `samsung_health_data` `omron_us` `omron_eu` | Maximum systolic blood pressure | mmHg | 2 | | blood\_pressure\_systolic\_min | `apple` `health_connect` `garmin` `withings` `huawei` `samsung_health_data` `omron_us` `omron_eu` | Minimum systolic blood pressure | mmHg | 2 | | body\_bone\_mass | `garmin` `withings` | Bone mass | g | 0 | | body\_fat | `apple` `health_connect` `fitbit` `garmin` `withings` `huawei` `samsung_health_data` `omron_us` `omron_eu` | Body fat percentage | percentage | 2 | | body\_fat\_max | `apple` `health_connect` `fitbit` `garmin` `withings` `huawei` `samsung_health_data` `omron_us` `omron_eu` | Maximum body fat percentage | percentage | 2 | | body\_fat\_min | `apple` `health_connect` `fitbit` `garmin` `withings` `huawei` `samsung_health_data` `omron_us` `omron_eu` | Minimum body fat percentage | percentage | 2 | | body\_mass\_index | `apple` `health_connect` `fitbit` `garmin` `samsung_health_data` `omron_us` `omron_eu` | Body mass index | count | 4 | | body\_temperature | `apple` `health_connect` `fitbit` `oura` `polar` `withings` `samsung_health_data` `omron_us` `omron_eu` | Body temperature | celsius | 2 | | body\_temperature\_max | `apple` `health_connect` `fitbit` `oura` `polar` `withings` `samsung_health_data` `omron_us` `omron_eu` | Maximum body temperature | celsius | 2 | | body\_temperature\_min | `apple` `health_connect` `fitbit` `oura` `polar` `withings` `samsung_health_data` `omron_us` `omron_eu` | Minimum body temperature | celsius | 2 | | breathing\_rate | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `whoop` `withings` | Breathing rate | breaths/min | 4 | | breathing\_rate\_max | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `whoop` `withings` | Maximum breathing rate | breaths/min | 4 | | breathing\_rate\_min | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `whoop` `withings` | Minimum breathing rate | breaths/min | 4 | | cadence | `garmin` `polar` `strava` `suunto` `huawei` `coros` `samsung_health_data` | Average cadence | rpm | 4 | | cadence\_max | `garmin` `polar` `strava` `suunto` `huawei` `coros` `samsung_health_data` | Maximum cadence | rpm | 4 | | cadence\_min | `garmin` `polar` `strava` `suunto` `huawei` `coros` `samsung_health_data` | Minimum cadence | rpm | 4 | | calories\_burned | `apple` `health_connect` `fitbit` `oura` `strava` `suunto` `whoop` `huawei` `coros` `samsung_health_data` | Total calories burned | kcal | 4 | | calories\_burned\_active | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `suunto` `whoop` `withings` `coros` `samsung_health_data` | Active calories burned | kcal | 4 | | calories\_burned\_basal | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `withings` | Basal calories burned | kcal | 4 | | calories\_intake | `huawei` | Calories intake | kcal | 4 | | descent | `garmin` `polar` `suunto` `huawei` `coros` | Total descent | meters | 2 | | distance | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `strava` `suunto` `whoop` `withings` `huawei` `coros` `samsung_health_data` `omron_us` `omron_eu` | Total distance | meters | 4 | | distance\_cycling | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `strava` `suunto` `whoop` `coros` `samsung_health_data` | Cycling distance | meters | 4 | | distance\_running | `garmin` `oura` `polar` `strava` `suunto` `whoop` `coros` `samsung_health_data` | Running distance | meters | 4 | | distance\_swimming | `apple` `health_connect` `fitbit` `garmin` `polar` `strava` `whoop` `coros` `samsung_health_data` | Swimming distance | meters | 4 | | distance\_walking | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `strava` `suunto` `whoop` `coros` `samsung_health_data` | Walking distance | meters | 4 | | distance\_wheelchair | `apple` `health_connect` `fitbit` `garmin` `polar` `strava` `whoop` | Wheelchair distance | meters | 4 | | duration\_active | `fitbit` `garmin` `huawei` `samsung_health_data` | Active duration | ms | 0 | | duration\_high\_intensity | `fitbit` `garmin` `oura` `withings` | Duration of high intensity | ms | 0 | | duration\_low\_intensity | `fitbit` `oura` `withings` | Duration of low intensity | ms | 0 | | duration\_moderate\_intensity | `fitbit` `garmin` `oura` `withings` `huawei` | Duration of moderate intensity | ms | 0 | | ecg\_rri | `polar` | ECG R-R interval | ms | 0 | | ecg\_voltage | `apple` `fitbit` `polar` `withings` `huawei` | ECG voltage | uV | 2 | | elevation | `apple` `fitbit` `garmin` `polar` `suunto` `withings` `huawei` `coros` `samsung_health_data` | Elevation | meters | 2 | | elevation\_gain | `health_connect` `polar` `strava` `whoop` `huawei` | Total elevation gain | meters | 2 | | elevation\_loss | `polar` `whoop` `huawei` | Total elevation loss | meters | 2 | | elevation\_max | `apple` `fitbit` `garmin` `polar` `strava` `suunto` `withings` `huawei` `coros` `samsung_health_data` | Maximum elevation | meters | 2 | | elevation\_min | `apple` `fitbit` `garmin` `polar` `strava` `suunto` `withings` `huawei` `coros` `samsung_health_data` | Minimum elevation | meters | 2 | | floors\_climbed | `apple` `health_connect` `fitbit` `garmin` | Floors climbed | count | 0 | | glucose | `apple` `health_connect` `ultrahuman` `samsung_health_data` `dexcom` `freestyle_libre` | Glucose | mg/dL | 6 | | heartrate | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `strava` `suunto` `whoop` `withings` `huawei` `ultrahuman` `coros` `samsung_health_data` `omron_us` `omron_eu` | Heart rate | bpm | 0 | | heartrate\_max | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `strava` `suunto` `whoop` `withings` `huawei` `ultrahuman` `coros` `samsung_health_data` `omron_us` `omron_eu` | Maximum heart rate | bpm | 0 | | heartrate\_min | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `strava` `suunto` `whoop` `withings` `huawei` `ultrahuman` `coros` `samsung_health_data` `omron_us` `omron_eu` | Minimum heart rate | bpm | 0 | | heartrate\_resting | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `whoop` `huawei` `ultrahuman` `coros` | Resting heart rate | bpm | 0 | | height | `apple` `health_connect` `oura` `polar` `whoop` `withings` `huawei` `samsung_health_data` | Height | meters | 4 | | hrv\_rmssd | `health_connect` `fitbit` `garmin` `oura` `polar` `suunto` `whoop` `withings` `ultrahuman` `coros` | Heart rate variability (RMSSD) | ms | 0 | | hrv\_sdnn | `apple` `withings` | Heart rate variability (SDNN) | ms | 0 | | latitude | `apple` `fitbit` `garmin` `polar` `suunto` `samsung_health_data` | Latitude | degrees | 8 | | longitude | `apple` `fitbit` `garmin` `polar` `suunto` `samsung_health_data` | Longitude | degrees | 8 | | pace | `garmin` `suunto` `huawei` | Average pace | sec/m | 2 | | power | `samsung_health_data` | Power | w | 0 | | power\_max | `samsung_health_data` | Maximum power | w | 0 | | skin\_temperature | `apple` `health_connect` `polar` `whoop` `withings` `huawei` `ultrahuman` `samsung_health_data` `luna` | Skin temperature | celsius | 2 | | skin\_temperature\_max | `apple` `health_connect` `polar` `whoop` `withings` `huawei` `ultrahuman` `samsung_health_data` `luna` | Maximum skin temperature | celsius | 2 | | skin\_temperature\_min | `apple` `health_connect` `polar` `whoop` `withings` `huawei` `ultrahuman` `samsung_health_data` `luna` | Minimum skin temperature | celsius | 2 | | sleep\_duration | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `suunto` `whoop` `withings` `huawei` `ultrahuman` `coros` `samsung_health_data` `luna` | Total sleep duration | ms | 0 | | sleep\_duration\_awake | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `suunto` `whoop` `withings` `huawei` `ultrahuman` `samsung_health_data` `luna` | Awake duration during sleep | ms | 0 | | sleep\_duration\_deep | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `suunto` `whoop` `withings` `huawei` `ultrahuman` `samsung_health_data` `luna` | Deep sleep duration | ms | 0 | | sleep\_duration\_light | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `suunto` `whoop` `withings` `huawei` `ultrahuman` `samsung_health_data` `luna` | Light sleep duration | ms | 0 | | sleep\_duration\_nap | `fitbit` `garmin` `oura` `suunto` `whoop` `luna` | Nap duration | ms | 0 | | sleep\_duration\_rem | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `suunto` `whoop` `withings` `huawei` `ultrahuman` `samsung_health_data` `luna` | REM sleep duration | ms | 0 | | sleep\_efficiency | `oura` `polar` `whoop` `withings` `huawei` `ultrahuman` | Sleep efficiency | percentage | 0 | | sleep\_interruptions | `health_connect` `fitbit` `garmin` `oura` `whoop` `withings` `huawei` `samsung_health_data` `luna` | Sleep interruptions | count | 0 | | sleep\_latency | `fitbit` `oura` `suunto` `withings` `huawei` `samsung_health_data` `luna` | Sleep latency | ms | 0 | | sleep\_skin\_temperature\_deviation | `fitbit` `garmin` `oura` `polar` | Skin temperature deviation from the baseline | celsius | 2 | | speed | `apple` `health_connect` `fitbit` `garmin` `polar` `strava` `suunto` `huawei` `coros` `samsung_health_data` | Average speed | m/sec | 4 | | speed\_max | `apple` `health_connect` `fitbit` `garmin` `polar` `strava` `suunto` `huawei` `coros` `samsung_health_data` | Maximum speed | m/sec | 4 | | speed\_min | `apple` `health_connect` `fitbit` `garmin` `polar` `strava` `suunto` `huawei` `coros` `samsung_health_data` | Minimum speed | m/sec | 4 | | spo2 | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `suunto` `whoop` `withings` `huawei` `ultrahuman` `samsung_health_data` `omron_us` `omron_eu` | Blood oxygen level | percentage | 4 | | spo2\_max | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `suunto` `whoop` `withings` `huawei` `ultrahuman` `samsung_health_data` `omron_us` `omron_eu` | Maximum blood oxygen level | percentage | 4 | | spo2\_min | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `suunto` `whoop` `withings` `huawei` `ultrahuman` `samsung_health_data` `omron_us` `omron_eu` | Minimum blood oxygen level | percentage | 4 | | steps | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `suunto` `withings` `huawei` `ultrahuman` `coros` `samsung_health_data` `omron_us` `omron_eu` | Total steps | count | 0 | | swimming\_distance\_per\_stroke | `garmin` `polar` `suunto` `coros` `samsung_health_data` | Swimming distance per stroke | meters | 2 | | swimming\_lengths | `garmin` `polar` `suunto` `coros` `samsung_health_data` | Swimming lengths | count | 0 | | vo2max | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `withings` `ultrahuman` | VO2 max | mL/kg/min | 2 | | wakeup\_latency | `fitbit` `suunto` `samsung_health_data` | Wakeup latency | ms | 0 | | weight | `apple` `health_connect` `fitbit` `garmin` `oura` `polar` `whoop` `withings` `huawei` `samsung_health_data` `omron_us` `omron_eu` | Weight | g | 4 |