Since I started this thread, and it has been two months since I bought this device, I believe I must update everyone ( @Fitbit included) that the heart rate never really worked as it should, that is to actually record the heart rate all the time.
I did lots of restars, turn off and on again and again, calibrations and whaterver else anyone recommends that could give me any hope.
As I naively, bought this stuff during a trip to the U.S (I live in Brazil where there is no fitbit representative), brought it home and cannot return it to the retailer (Best Buy) unless I am there in person with my credit card and id, I will have to keep it to remind me of my stupidity.
Through all this ordeal, however, I noticed one thing that may be of interest to someone.
The heart rate works with some regularity when the batery is below 50 or 40% but whenever I recharge it, it stops working..
After recharging, if I do not perform a factory reset, HR will not work at all until the batery reaches a level below 50% charge.
Maybe it is really a hardware bug but I cannot image that a company like Fitbit, that wants to compete in this tracker and welness market, could let this happen and, even worse, let the users be frustrated with the product and do nothing.
Very frustrated and disapointed.
Fitbit never again!
Happy new year to everyone (without Fitbit, of course).
