The watch appears to support all the metrics to determine the Body Battery feature, but I doubt that it will get added to the FR935. I could be wrong, but I suspect this will become a feature to encourage upgrading hardware.
They did add the "advanced sleep" stuff without making people pay extra, so you never know. I'd like to have it on my 935, it seems like it takes into account general activity as well as defined training/sports events which is the main interest from me. Though to be honest, If Garmin would just include the "activity" effect on your training recovery as Polar does then that'd be as good a (if not better) solution for me.
Remember, the active sleep was a server side change not a FW change on the watch. I too think it would be cool to have the body battery feature, but I am not about to get my hopes up that it will happen. As we both highlighted, the watch has the info, and this appears to be a broader version of training status that takes into account the entire day and not just training activities. Could it be done, absolutely. Will it be done remains to be seen. Here's to hoping for it in a future FW change log. ;)
I'm writing this out of sheer ignorance: is there value to "Body Battery" for users of devices like the 935/Fenix?
I'll tell you why I bring that up: it seems like "Body Battery" is a more simple data-point - a sort of gated "yes/no".
With the 935/Fenix, the "Training Load," "Training Status," and "Recovery Advisor" (nevermind your overall HRV stress, sleep etc) gives a more detailed/granular look at the load you're placing on your body, and then YOU decide if you should be training.
I'd like to know if Body Battery would actually be complimentary to existing metrics.
if it is like training status this is useless because training status is just hokum.. I can from peaking to unproductive in a matter of hours a long slow run makes you in status detraining a interval or threshold run makes you peaking. the vo2 max changes like the weather. in one week my vo2max varies from perhaps 48 to 52. I cannot always train at 200%. there are recovery runs, easy runs interval runs and threshold runs. a recovery or easy run make the training load go to unproductive or detraining . Its okay it just a watch that checks numbers after all it is up to you to decide how you are feeling.
Body Battery essentially puts your activities, stress, recovery, and sleep into a same context. So, yes, very much complimentary to existing metrics.
All-Day Stress tracking is heavily used to provide Body Battery.
If; and that's a big if, Body Battery works, then it would be a welcome addition to the 935. The current measurements with Training Status is garbage. (See thread "Always Unproductive"). For the last two months I have been training at a level where training status has read "maintaining". For the last couple of weeks I bounce between "unproductive" or "overreaching". Fitness shows an arrow down and load shows an arrow up. There has been no change in my training! My work load has not increased. My VO2 Max has not changed. My HR zones have not changed and my workouts have my HR in the same range as usual. I have not been ill or suffered an injury. My resting HR has actually improved by dropping 1-2 bps. My average daily stress is 31 (low range). I've been on vacation for a week these last couple of weeks and my sleep has increased from 7:30 hrs daily to 9 hrs. Today my watch is showing unproductive, fitness down and load up, but my recovery says zero hrs "train as usual". As you can see, my stress, recovery and sleep contradict the info training status is providing me. If Body Battery can balance this, then maybe I can use the Firstbeat metrics instead of dismissing the current readings I'm getting now.
I agree with regards to training status. It is now, for me, worse than useless. According to my watch after of year of base building and following a Marathon Training Plan I am now less fit than I was 12 months ago and less fit than I was before I started the Marathon Plan. The reality is that I'm far far fitter, but far more fatigued. The Issue with Training Status is that it only gives absolutes using emotive terms, "Fitness Down", "Unproductive" and so on, not what you want to see after a 20 mile long run on a warm day. If the tool were to give some guidance that may help for example for a Productive run Run 30 mins with HR < 140. However at the moment all it is doing is marking your home work with out telling you how you can improve.
