HR sensor on watch and external at the same time
-
Hi,
I have an external HR sensor and everything is ok, gives measurements etc.
In the watch itself, in the options for a particular exercise I have an option such as disable HR monitoring from the watch.
What is the relationship during exercise - measurement from the external sensor and leaving this option enabled in the watch?
HR is measured from both sensors?Matt
-
@matt-r nope, if the watch connects to the sensor, it uses just that automatically. No need to toggle watch HR off every time.
-
@DMytro Ok, that’s generally what I thought

By the way - is the possible lack of VO2max measurement affected by turning off the heart rate on the watch?
I bet not, but… After disabling this option - with today’s 8km run, 45 min normal pace. I got no such measurement - hence my interest in this duplicate option. -
@matt-r if HR was measured my HR strap, VO2Max shouldn’t disappear.
-
@DMytro Ok - another thing I reasonably expected

Then I am now curious why there was no measurement of VO2max
-
@matt-r did you have vO2 before? Or did you reset your watch recently?
-
@DMytro Yes, I was doing a hard reset - I had a problem with the update.
However, I thought that the VO2max measurement should be read - as it is written in the instructions - even after the first exercise, but lasting a minimum of 15 min
-
@matt-r sometimes 1 exercises is not enough. Do a couple more and everything will be ok
-
@DMytro Sure, that’s probably how it will be.
But strange, because I remember exactly that after an identical first run I immediately got a VO2max sample and now I don’t
-
@matt-r the firstbeat vo2max algo has some filtering process, which throws away portions of data if it thinks they are faulty/not accurate enough. Since it’s colder now, maybe it impacted the quality of the data and algorithm decided the data wasn’t enough to give you a reliable value.
-
@DMytro oooo! that’s an interesting observation, I hadn’t thought of that

Cool tip - such for general understanding of Suunto ecosystem
thanks!
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better 💗
Register Login