Abnormal Heart Rate Issues.

I went for hiking today. when I was climbing a slope and my heart was beating hard, but my 945 showed only 100 bpm. It suddenly dropped from 156 to 100 and stayed there. This was ridiculous. I need to monitor my heart beat during hiking and setup a high alert due to heart disease. After this issue, I decide to use my original 935 and no more 945 until all bugs are fixed.

Final word to Garmin, we are users and customers but not field tester or debugger!! If you don't hear our voices, that is fine and we can quit.

Recently, I also created a topic with a similar question. The optical sensor data in the latest update (4.40) sucks. It’s sad that this update It’s sad that this update came out more than 3 months ago! Hey, Garmin, are you all right? 

Previously, I was also a Polar user and everything suited me, but I decided to try Garmin and my headache started ... 3 replacements under the F5 guarantee due to marriage, a disgusting battery on the F5 +, Now there are eternal problems with firmware on 945 (one will fix the other to break). Also in the near future decided to return to Polar. 

Same for me. several times but also before update. Therefore i prefer wearing the Hf belt.

pulse Hart rate sucks.

By the way i have interest in you 945 if you sell it. my collegue wants a 945 as well ;-)

It's been *really* bad since the last update.  I was sitting at my computer not moving a muscle, and the alarm went off.  Heart rate:  176!!  I took off the watch, put it in the penalty box, put it back on, and after "Measuring..."    it gave me 55.  L O L.  Thinking there's a reason Garmin is taking so long with any further software updates.  Did the entire software team quit during the pandemic and leave our watches in the lurch? 

I had exactly the same a few times. Checked my HR too, and it was far below 60...

You're rigt, it's a unreliable feature that scares the hell out of you. 

Shame on you Garmin :-(

I took another hiking today and same route. same thing happened and HR suddenly dropped from 150 to 100 and kept at 100 even my heart beating hard.

What should I do now? Trash this fxxxxxx watch!!

The abnormal heartrate notification from Garmin is not even worthless, it can be actually misleading and dangerous.

Especially as it is utterly silly when you are sleeping and having a vivid dream or nightmare, it is absolutely normal that your heart rate will be high during that dream. And Garmin's alarm will go off, which happend a few times now for me. Checking the heart rate graph in the app showed that there was absolutely no reason for concern, it simply was a dream.

This feature is totally useless and might concern you for no reasons, especially it can disturb your sleep and in case you have someone else in bed their's too.

Funny story, I have my watch sitting on the table and I forgot to turn it off, and this morning it alerted saying heart rate is abnormal... looked at the graph it was 169... I didn't know air had a heart rate. 

Did something hit the table by chance?  I tend to have nervous leg when I'm sitting still thinking, and that's typically when i'll hit the "abnormal heart rate" bug. 

nope it was sitting in a room with no one in it.