Apple Watch Ultra Heart Rate During Workout

Yeah it’s kind of embarrassing to make up convoluted explanations like this from Apple. It’s clearly not the reason, we all know this doesn’t happen with other Apple Watches.

My Ultra 2 does the same thing, so disappointing! Works on a walk, but not a run? I will try another strap also the other way round.

Did you ever find a fix for this?

You aren’t the only one…. I am about ready for getting a refund. My primitive series 5 was so much better than this.

I got an ultra because of the purported accuracy and enhanced analytics, metrics are important and this is so poor.

Just did an easy ‘conversational pace’ run and it recorded my heart rate at about 95% of my max for a large part of it and then did the missing recording nonsense.

So poor.

I seem to having the same problem with an Ultra watch not locking on. to heart rate. Interesting that if I pause the run, and restart the heart rate will come back, but may or may not stay.. Seemed the watch was fine for about a month, but when I go back to the beginning. When I went back through my runs on Fitness I could see this happening periodically. Most of the time but doesn't record for the first few minutes and then will start and work ok. I am going to unpair and re-pair the watch and see whether this helps the issue.

You are not the only one with this problem as I have the same issue. Also, the pacing is not consistent. For example, the average workout pace is different from the current average lap pace despite the fact that I’m on the first lap. I’m guessing there are software bugs that need to be fixed, something Apple is typically good at. By the way, I am using the Ultra watch.

Hi!

I have been doing some tests, and I think it is something related to the movement or the position of the watch on the wrist.

In screenshot 1 you can see a simulated activity this morning, I was working with my computer on my desk. The heart rate reading is perfect and continuous.

In Screenshot 2, I went for an outdoor run 3 hours later and you can see that the readings is super poor, around 15-20%.

Same watch, same wrist, same day, same config, the only difference is that in the #1 I was still on the same position and in #2 I was running.

In screenshot 3 you can see the readings of other day that I went to walk (so slow speed), and the watch capture readings in around 75% of all the time.

I guess the problem is something related with that the movement of the watch on the wrist impacts on the Heart Rate readings.

I have a small-thin wrist and I'm using Alpine Loop Band (and I tried to loose it and tighten it)

Have you tried it?

Strange.... if it is a software bug, Why it only impacts on some users?

I tend to think that is something related with the movement on small wrists. (on Saturday I borrowed the watch to a friend that has a thicker wrist and it read 90% of the HR.

the principle would be the same though until you warm up. If it was to do with vascularity, then you’d expect the reading to be hit and miss during the movement prep part of the resistance workout.

It recorded the whole session fine. Plus, my old Apple Watch never had an issue, with older technology.