You can use a Wear OS watch to take heart rate measurements. In the Google Fit app, you can track your heart rate for a workout or over time.
Important: Fit won’t save heart rate data for children under 13 (or the applicable age in your country).
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To monitor your heart rate, you need a watch with a heart rate sensor. Some examples include:
- LG Watch Sport
- Huawei Watch 2
- Montblanc Summit
- Fossil Q Control
- Misfit Vapor
You can also use a Bluetooth heart rate sensor, like a chest strap.
Note: This feature is only available on Wear OS 3 and below.
Check your current heart rate on your watch
Navigate in your watch
- If the screen is dim, tap it to wake up the watch.
- To get a list of your apps, press the Power button.
- Open the Google Fit Heart Rate app
.
- Tap Measure.
- Wear 2: Open the Google Fit app. Scroll and tap Read heart rate. If it’s not there, this isn’t available on your watch.
- Hold still while the watch reads your heart rate.
Check your heart rate during a workout
- If the screen is dim, tap it to wake up the watch.
- To find your heart rate info, swipe to the last screen.
- At the top of the screen, you’ll find a heart rate zone gauge that ranges from positions such as Low, Moderate, or Intense.
- You can earn Heart Points when your heart rate zone is in the Moderate and Intense zones.
- If the screen is dim, tap it to wake up the watch.
- Make sure Bluetooth on your watch is turned on.
- Open the Google Fit Heart Rate app
- Tap Settings
Bluetooth sensors.
- Select your device.
- If you can't find your device, tap Scan.
- If necessary, give Fit permission to use your sensor.
Tip: When the sensor tracks your heart rate, Bluetooth 
Note: Bluetooth heart rate sensors are only supported on Wear OS 3 and below.
On your phone:
- Open the Google Fit Heart Rate app
- At the bottom, tap Home.
- Scroll and tap Heart rate.
- Choose a time frame to review your heart rate data.
On your watch:
- If the screen is dim, tap it to wake up the watch.
- To get a list of your apps, press the Power button.
- Open the Google Fit app
- To find your heart rate, scroll to the "Heart rate" section.
On your phone:
- Open the Google Fit app
- At the bottom, tap Home.
- Scroll and tap Heart rate.
- Choose a time frame to review your heart rate data.
If your heart rate monitor isn't working, try these steps:
- Tighten the watch strap around your wrist, or adjust the fit of your Bluetooth sensor.
- Make sure the back of the sensor completely touches your skin.
- Keep still. Sometimes, moving makes the sensor inaccurate.
Important: The heart-rate functions are not medical devices, and are intended for informational purposes only. Consult a physician before you begin a new fitness or nutrition program.