If your Apple Watch’s heart rate sensor stops working for some reason, you may need to restart or reset the device. Press and hold the side button until you see the power off slider, and drag it to turn off Apple Watch. Press and hold the side button again until you see the Apple Watch logo. 23
Why isn’t my Apple Watch updating my heart rate?
To check this, open the Watch app on your phone, go to General > App Background Refresh. Make sure the slider next to Heart rate is green. There’s no harm in turning it on and off a few times to try and update it.
How do I get my Apple Watch to read my heart rate?
To use the electrical heart sensor to measure your heart rate, open the Heart Rate app and place your finger on the Digital Crown. You’ll get a faster reading with higher fidelity – readings are displayed every second instead of every 5 seconds.
Is Apple Watch Heart Rate Wrong?
The most common cause of the Apple Watch giving inaccurate heart rate readings seems to be related to the fit of the watch strap itself. An ill-fitting strap that moves at all or has noticeable gaps between the watch and the skin can easily result in inaccurate readings. 16
Can you change how often the Apple Watch checks heart rate?
It’s not possible to change the frequency at which Apple Watch automatically measures your heart rate. Apple Watch automatically measures your heart rate in two ways: Background readings, taken periodically throughout the day when you’re not moving (a resting heart rate). 16