Source
r/GarminFenix•
Bluered2012

Fenix 7s VO2 Max way down

[DEVICE]

I used a Fenix 5 for a couple years as I started cycling seriously at the start of the pandemic. I got Garmin power pedals pretty quickly as well, and my VO2 settled around 45-47.

In November I received a Fenix 7s, and it took a week or so for it to give me a VO2 score of 31. In the time since it’s gone up to 33 and plateaued there. I never run, yet my running VO2 Max is also 33.

Is the Fenix 7s so much more accurate than the 5, and I’m just truly in the bottom 15% for my age and sex (46 male)? Or does this seem to be some sort of glitch?

Posted Jan 22, 2023, 2:36 PM UTC

23
igalan•

I've you're relatively fit your VO2max is not going to be 33 for sure. I run more than cycle so I can't help much but something is wrong. Either you need to recalibrate your pedals or something. 45-47 seems much more likely. I don't have experience with power meters.

2
[deleted]•

[deleted]

1
Bluered2012OP•

Yes. Weight is updated daily by my scale. HR zones are the auto Garmin zones, I’ve read they have nothing to do with it. I adjust my Max HR every time I get a notice that it’s changed, which is hardly ever anymore.

1
rags1611•

Was your max HR on the Fenix 5 the same as what you are setting the Fenix 7? Max HR seems to be the biggest user variable that creates suspicious VO2max values

1
SigmaticsFenix 7•

Just go for some runs with it? It will fix itself

1