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Vivosmart 4 vs 945 - the Body Battery Duel

Hi,

I use the 945 as a running watch, the vivosmart 4 as a daily/nightly activity tracker. Both watches have Body Battery support, and the vivosmart 4 does a good job at it, but when I put on the 945 i get huge spikes/drops in my BB-graph - it seems the 945 has a completely different idea of my BB value, and depending on which watch I wear i will get completely contradicting data.

Example:

Today my BB topped up to 100% over night, and was sitting at 100% since I woke up, all using vivosmart 4. Then I put on the 945 to test some settings, and the BB dropped down to almost zero. Put back the vivosmart and it popped up to close to 100% again. On the "My Day" page in CIQ i see Body Battery +530/-468 currently, just from this back and forth between the watches. I have enabled True Up to sync activity tracking stuff between watches, but i do not think body battery is part of True Up, from what I read.

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0 NYanakiev7 over 5 years ago in reply to NYanakiev7

I remember how, before physio true up came to be, only a handful of metrics would sync (correctly!) across compatible devices. It's beyond me why these things don't get properly planned for.

Unless BB was a last minute addition.

0 kitenski over 5 years ago in reply to Tramplite

When you hike for 12 hours are you wearing both watches at the same time??

0 kitenski over 5 years ago in reply to Tramplite

When you hike for 12 hours are you wearing both watches at the same time??

0 Tramplite over 5 years ago in reply to kitenski

No! But I hiked last month with my 935 and VS4 and the last 2 weeks with only the 945. With the 945 BB never drops while hiking (I'm using 0 energy!).

0 _Alang over 5 years ago in reply to NYanakiev7

I believe that you've identified what is causing the confusion. VS4 supports True up but not Physio True up so only certain metrics are sync'd between devices. The underlying metrics that support BB or at least not all of them are supported in True up.

0 Fredderic over 5 years ago

For now I have disabled the optical HR on the 945 and that mostly seems to fix my issues. Of course when I go for a run with the 945 the body-battery might not drop adequately due to no measurements during the time, but once I put the vivosmart on it will show a drop in battery charge (presumably noticing my less relaxed HRV post exercise).