Apple’s Worldwide Developers Conference to kick off June 10 at 10 a.m. PDT with Keynote address

The Keynote will be available to stream on apple.com, the Apple Developer app, the Apple TV app, and the Apple YouTube channel. On-demand playback will be available after the conclusion of the stream.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

My Apple watch fails to measure heart rate when I am wearing it

I was wearing my apple watch during the night, In order to track my sleep.

I woke up to notice it failed to measure my heart rate for a couple of hours, as well as the activity app failing to recognise it as an idle hour.

I didn't take it off , nor was I charging it during the night .


What is the problem with it?

Is it defective


NB: I've only had the Apple watch for 7 months.


Apple Watch Series 5, watchOS 6

Posted on Jul 23, 2020 4:21 AM

Reply
Question marked as Best reply

Posted on Jul 23, 2020 5:12 AM

You may need to clean the sensors on the back.


Make sure that the watch is snug on your wrist. https://support.apple.com/en-ca/HT204665


Going by your description it sounds more like it is not snug enough

Similar questions

1 reply

My Apple watch fails to measure heart rate when I am wearing it

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.