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EDGE 830 and FEnix 6 Sapphire give different Aerobic and Anaerobic numbers for the same training

Former Member over 4 years ago

When going on cycle and using chest heart monitor with my edge and turning on training on watch it gives me the same information except the Aerobic and Anaerobic numbers are very different. Aerobic is about 50% lower than on my Edge while Aerobic is either 0 or slightly above where it is about 2.0 on my Edge.

0 Former Member over 4 years ago in reply to Luko79

So you are saying the optical sensor on the F6 is rubbish? Think it would be splitting hairs about the first 5 minutes.

0 f|33tStA over 4 years ago in reply to Former Member

think logic, you want to compare apple (OHR) with Pears (Heart Rate Strap)

OHR is more designed for 24hr measurement during the whole day, like walking, sleeping and so on, if you do really sport you need a chest strep because it is more accurate.

As Luko79 said, there is something weird with you chest strap session, at the beginning there is no measuremt!

If you record with both devices, your Training Load will go totally wrong, so it is not a good idea!

0 Former Member over 4 years ago in reply to f|33tStA

Thanks for all the answers. As a Newbie to all of this it might have been simpler with a Google search> The following article helps explain it to me - however the one thing that still mystifies me is that the Anaerobic numbers are so off ? Not wanting them to be the same but at least they should ave some directional similarity. https://trailrunnermag.com/training/why-you-should-be-skeptical-about-your-wrist-based-heart-rate.html

0 Wongataa over 4 years ago in reply to Former Member

I would use the same HR source for each device so differences in readings can be ruled out as a variable and then see what the differences are. over several activities.