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Update on body battery tracking on multiple watches

Is there any update on when body battery tracking will be available if you use multiple watches?

In the past, I would have two or three Garmin watches at any given time.  A forerunner for sports and sleeping (it is lighter and more comfortable for me when sleeping), a Fenix for when I am out and about, and a Vivoluxe to wear with a suit at work.

But since the body battery was introduced, I am now wearing one of them, my Forerunner, 99% of the time because that is the only way I can track body battery throughout the day.  I find the body battery feature one of the most valuable for me since I struggle with sleep quality and energy levels throughout the day.  When will this be available across multiple watches?  The last post and updates I see in the forums is from 10 months ago.

It is a bit odd because I can track my stress levels (HRV) and other metrics across multiple watches.  So why not body battery?

I want to get a Fenix 6 or possibly wait for whatever will replace it in 2022, but not until this is resolved.

Thank you,
Jason

  • What’s weird is how different my Venu 2S and my Venu SQ are on body battery.  My Venu 2S shows 22 today and my Venu SQ shows 55.  That’s a huge difference and who’s to say which one is right?

  • I’ve been having this conversation in another thread for the Venu 2.  It will never be changed as far as I know, as they don’t view it as an error.  Here is the recent response I got:

    Hey, my mistake on this.  Body Battery is actually NOT synced with Physio TrueUp.  See the FAQ below:

    What is Physio TrueUp?

    As far as the different readings goes, Body Battery, Stress, and Respiration are all values that use heart rate data for calculation.  Because the watches are worn on different parts of your wrist/arm, there is going to be a different amount of tissue in your wrist/arm that lies in between the optical sensor on the watch and the blood vessel where the light measures your pulse.  See "The Heart Rate Sensor on My Garmin Watch Is Not Accurate" for details on how the optical HR is measured.  This difference in heart rate, over time, when paired with the previous heart rate data stored on the watch from previous use can lead to different values on each watch for each of these measurements (Body Battery, Stress, and Respiration).

  • That doesn’t add up to me.  Heart rate readings will have variations even if you use only one watch, as noted in the article you linked.  It can fluctuate based on activities like running, or movements with flexing of the wrist like push-ups.  It then suggests using a heart rate chest strap, which reads the heart rate in a completely different way, can help.  If they can accommodate these variations on a single watch and provide a body battery value, taking into account different movements and the use of a chest strap, then why can they not account for second watch that I wear at the office, on the same wrist, with very little flexing of the wrist.

    I hope Garmin is able to comment on this. I am literally looking for an excuse to buy two more watches, but I won’t until the body battery syncs across multiple devices.

  • I totally agree and I think body battery when you switch watches should just be based on the data thats already been synced up for the day, regardless of what watch you had on.  Not only that but there aren’t minor differences between my watches, there can be a 20-40 point difference between the two watches body battery.

  • Totally agree with you. I wear a Fenix 6 Pro Solar but wanted a lighter watch for sleeping so purchased the latest Instinct. Imagine my surprise when Body Battery didn’t sync. I then wore it most of the next day at work and when I synced that evening the Body Battery data was missing. I now know this was because the watch I was wearing (Instinct) wasn’t set as the Priority - or so I believe.

    I could just hide Body Battery and other data that doesn’t sync between devices in Garmin Connect but then you end up removing functionality.

    Please Garmin we would like to sync data other than steps, intensity minutes, calories (TrueUp) etc.

    At the moment I feel my Instinct is pretty useless. I could wake up from wearing my Fenix with a Body Battery of 80% only to put my Instinct on with a Body Battery of 30%. Kinda useless having two Garmins’ really.

    So again if you’re reading this Garmin please make some further progress with TrueUp.

    Thanks

  • Any updates on this feature request? 

  • Ya, that’s a bogus answer. Apple allows you to use innumerable Watches. Just take one off the charger and put it on. It begins to use the data collected from that watch and synchronizes all the data in one place. Nothing stops a user from wearing it on a different wrist, or flipped, or on their arm or ankle with a strap.

    I suspect it has something to do with “wrist detection” which Apple has down. If you turn that setting off, the Apple Watch will not collect heart rate data and only estimate certain basic values. Still, is synchs the data to a single location no matter how many Watches you may wear throughout the day or week.

    For Garmin, when you upgrade from, let’s say the fēnix 5 to 7, do they throw the data away? They update sensors, too, so the data will invaluably be different even if the watch is glued onto the same wrist for 5 years straight.

    I’d prefer an honest, knowledgeable answer to one that is just smoke blown in my eyes…

  • No update still? Would literally buy a second Garmin watch if this would work

  • Perhaps the issue (problem) is that not all data is downloaded from the Garmin device to Garmin Connect - which is where the sync across devices and platform capability comes from.

    E.g., While you can create custom workouts and load widgets and apps to your Garmin Venu, you lose the individual settings when you reload data from Garmin Connect. The specific datafields you've selected and certain data, like how many days in a row you've reached your step goal, etc., do not seem to be saved to Garmin Connect.

    Perhaps some of the data needed for your Body Battery rely on data residing on the device, and not uploaded. How many + and - of rest and stress are likely uploaded, but not the starting point for the day, or where you left off in net "BB" position between 0-100.

    I'm not suggesting this can't be addressed, but my guess is that this would be why it's not currently working the way many would like.

  • I bought a 2nd device for sleep before doing my homework and reading the forums. Worst and expensive decision!

    Given the response from Garmin, i would honestly prefer less accurate body battery, rather than utterly *** and unusable body battery...