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Cardio Fitness

My heart rate is not properly tracking. How can I fix this?

  • Make sure you are wearing your smartwatch higher and tighter on the arm with the sensors flat against your skin above the wrist bone.
  • Temperature, sweat, irregular movement, and tattoos can cause interference.

Keep the smartwatch as still as possible and remove any condensation between device and skin.

  • If you have tattoos on your wrist, the sensors may not be able to get a reading.

Wear your watch on the other hand if the skin is clear.

  • If you have poor circulation or are cold, warm up first before starting your exercise to help improve heart rate readings.

How do I take a heart rate measurement?

Wear the smartwatch above your wrist bone with the watch still and flat against your skin.

Assign Heart Rate to one of your watch face’s data points from the brand watch app options. Your BPM reading will automatically update every twenty minutes after the first reading, or you can prompt a reading at any time by tapping the icon. You will see dashes on your screen after tapping the heart rate icon; be patient. It can take 10-15 seconds to capture a reading. If the sensors have trouble capturing your heart rate, the smartwatch will walk you back through wear recommendations.

Take a manual reading at any time in the Google Fit watch app by tapping the heart button. Manual readings taken in Fit will appear here with time stamps. Your heart rate will automatically track during workout sessions. The stats will appear with the rest of your data in the Workout History section of the Google Fit watch app.


Why am I not getting a Cardio Fitness reading?

There are a few different factors that can prevent you from getting a reading. Please try the steps below to make sure the app is getting all the necessary data.

  • Enable background heart rate in the Google Fit watch app: App Menu > Fit Goals > Settings > Background Heart Rate
  • Enable Fit permission to use body sensors: Watch Settings > Apps & notifications > App permissions > System Apps > Fit > Sensors

How often should I wear my watch to get a Cardio Fitness reading?

If you’re wearing your watch continuously throughout the day, you should get a reading within 24 hours. If you wear your watch for a few hours each day, it can take up to a week to get a reading.


What is Cardio Fitness?

Cardio Fitness is an estimation of VO2max using resting heart rate and your biometrics (like age, gender, weight, etc). This reading reflects cardiorespiratory and endurance abilities based on exercise performance. VO2max metrics work for everyone, as it conveys your overall fitness level relative to your age and size. We’ve translated the levels into easy-to-understand terms to help you on your fitness journey.


Why is my heart rate not showing up when tracking a workout?

Make sure you’ve enabled body sensor permissions: Apps & Notifications > App info > System Apps > Wellness > Permissions > Sensors