What is Loss of Pulse Detection on my Google Pixel Watch?

To set up Loss of Pulse Detection: 

1. On your phone, open the Google Pixel Watch app. 
2. Tap Safety & emergency  Loss of Pulse Detection. 
   Note: If you’re located in a region where Loss of Pulse Detection is available, but don’t see the feature listed in the Safety & emergency section, update the Personal Safety app on your watch and the Pixel Watch app on your phone.
3. Follow the on-screen instructions to turn on the feature. After you turn on Loss of Pulse Detection, it monitors your heart rate signal to detect a potential loss of pulse whenever you’re wearing your watch. 

You must be signed in to Personal Safety with your Google Account on the Pixel Watch to turn on Loss of Pulse Detection. If you have not signed in to the Personal Safety, you’ll be prompted to do so during the setup flow.

Loss of Pulse Detection is only available in select regions. If you travel to a region where Loss of Pulse Detection is not supported, the feature will be temporarily suspended. While temporarily suspended, the feature will not detect a loss of pulse and can’t place a call to emergency services. If you return to a supported region, the feature will automatically resume.

Loss of pulse is the absence of a detectable pulse that usually results in loss of consciousness and requires urgent emergency intervention. 

Loss of pulse can occur from a variety of causes including, but not limited to, cardiac arrest, respiratory or circulatory failure, overdose, or poisoning.

If a pulse isn’t detected while wearing your Pixel Watch, your watch will vibrate and check in to see if you need help. If movement or a pulse is detected, the check-in is automatically dismissed.

After about 15 seconds, your watch will also play a loud sound and start a countdown. If you don’t need help, you can tap X to dismiss the countdown.

If you don’t respond during the countdown, your watch will attempt to place a call to emergency services.¹ If the call connects, your watch plays an automated message that shares your location and informs the emergency call operator that a pulse wasn’t detected and that there was no response from you.

If you or a bystander are able to speak to emergency services, you can tap the button at the bottom to stop the automated message.

Disclaimers:

• Loss of Pulse Detection may not always be able to detect all loss of pulse events.
• You may receive a check-in when there is a poor pulse sensor reading, which can happen as a result of normal day-to-day activities. 
• In some cases, your Pixel Watch might not be able to call emergency services. For example, your phone might be connected to a weak mobile network or in an ongoing call.²
  • Google Pixel Watch Wi-Fi needs to be in range of your phone and connected with Bluetooth for your phone to call emergency services. You will not be able to talk to emergency services from your watch if your watch is not connected to a phone through Bluetooth.
  • Google Pixel Watch LTE needs an active LTE connection on your watch to call emergency services. 
  • Certain regions require an active LTE carrier or Safety Signal to support emergency calls placed from a Pixel Watch.

Loss of Pulse Detection is not intended for:

• Anyone under the age of 22
• Individuals who have been identified by healthcare professionals as high risk for sudden cardiac death, such as those with coronary artery disease, cardiomyopathy, or unexplained syncope (fainting)

This feature does not replace any real-time and/or continuous cardiac or pulse monitoring devices prescribed by healthcare professionals

Loss of Pulse Detection and Irregular Rhythm Notifications are two separate features on the Pixel Watch. For more information about irregular rhythm notifications, refer to How do Fitbit Irregular Rhythm Notifications check for atrial fibrillation (AFib)?

If you cancel a check-in and do not need help (or if your watch automatically cancels an alert because it detects movement or a pulse), you’re invited to provide more information so that we can improve the feature.

To turn off Loss of Pulse Detection: 

1. On your phone, open the Google Pixel Watch app. 

2. Tap Safety & emergency  Loss of Pulse Detection. 

3. Tap the slider next to Use Loss of Pulse Detection.

For more information, refer to the Instructions for use.