6th Generation VO2Max

Is there any way to find out if this new calculation will be backported to the Fenix 5+ (or 935 watches)? It doesn't appear to require any additional sensors or anything, but it would be great to have temperature taken into account when calculating VO2Max. It seems odd that it may come to the 945, but not the Fenix 5+, which should still be a more feature rich watch in my opinion. When the Galileo GPS rolled out they did backport that to the 935 so there is some precedent for it.
  • Maybe i missed it, but can you point me to info on what is new/different about the 6th generation vo2max calculation?

  • Thank you.

    The firstbeat page lists

    In recent years, Training Load and Training Status have become signature insights from Garmin’s top fitness and outdoor products. Together these features allow you to keep tabs on the physiological impact of your activities and provide feedback by interpreting that load in light of changes and trends in your cardiorespiratory fitness level (VO2max).


    I've not seen anything about humidity, but heat and altitude are called out in Ray's 830/530 posts and i believe he mentions that the MARQ has that as well.
  • Yes, hopefully all these firstbeat changes make it in as they are only software updates on existing firstbeat functions and should not require new licensing except body resources, which should be backported like stress tracking, considering the price of these watches and the fact that a $140 tracker has it.

    The forerunner 945 is already confirmed to have all these so it would make no sense for them to not backport to a higher end watch.

    Hopefully, this makes it in the next update as 7.0 does not have any of it and Garmin's high end lineup is so fragmented in terms of features that it makes no sense.
  • Yes, hopefully all these firstbeat changes make it in as they are only software updates on existing firstbeat functions

    Well, the necessary software updates may not only include a new calculation algorithm, but also a new way of communicating data to native activity apps.

    The correction for ambient temperature is based on meteorological data from nearby weather stations, retrieved over the internet by the phone. I could be wrong, but I don't think there is any other instance where the native activity apps in the 5+ will make use of data from the internet. So none of us know if those apps support that.

    (Of course the watch itself can retrieve such data. The weather widget already does it. And an IQ activity app can also use data from the internet. The Final Surge app does that. But I haven't seen a native Garmin activity app do it.)
  • That's true, they would probably have to make some changes with regards to incorporating the data from the algorithm into the native activity apps. I'm still optimistic though as these features have been confirmed for the edge 1030 which is much older.

    That having been said it would not surprise me if they only add these functions to the 5+ series as a point of differentiation, and not the original 5 or forerunner 935 (this model is being replaced in several days and is about 2 years old).

    These new changes would make the metric more useful provided they work as advertised, as the Vo2Max and by extension performance condition does behave erratically with drastic temperature changes.

  • This would be nice, indeed. However, temperature should be taken from weather data, as the temperature sensor in the 5+ is not reliable. I think it is inlfuenced too much by the body temperature, which is a pity.
  • I would say that if they were going to add the new performance metrics features to the F5+ series the new stable release firmware wouldn’t be released so soon before the 945 launch. Since there’s nothing in the release notes about such a thing being present and not having anybody who’s received the update mention it I think it’s doubtful.
  • This would be nice, indeed. However, temperature should be taken from weather data, as the temperature sensor in the 5+ is not reliable. I think it is inlfuenced too much by the body temperature, which is a pity.


    The temperature comes from a local weather station via the phone and not via the temp sensor which always reads too high.

    Even the edge 1030 will have to wait for the new functionality, therefore, there may be a period of a couple of months during which the lower end or newer units have more advanced metrics. It not being present in this firmware has no bearing on possible future availability.
  • I really hope this new feature makes its way on our fenix 5 plus lineup. I see no point in putting 800 euros in a watch if it does not get software updates at least during the warranty time...
    But I am confident we will get it after the 945 launch.