The truth is that if the Gear Fit is as good over the long run as its first impression suggests, there might never be a need for a Gear 3.
Hopefully this will store info and upload to the phone after a day of being apart. I can't take my phone into my workplace but I would still like to monitor my activity and heart rate on a continual daily basis. Which brings to mind the ability to track 2 things at once which would be a nice feature.