Latest firmware v1.31.93 – October 20, 2018

I’ve been using this for a week now. Something wasn’t feeling quite right about the HR readout, so I decided to check it for accuracy with my Polar FT2. I discovered that the Charge 3 maxHR display output is off BY ANYWHERE FROM 20 TO 30 BEATS too low! Yes, the difference is variable, and THAT MUCH.

I’ve done a hard reset. I’ve worn it tight, loose, snug, just right – still with the same results: maxHR display output is off from 20 to 30 beats too low.

I won’t do any medical diagnosis on the dangers/hazards, but my Charge 3 is going back to the store where I bought it. Goodbye Fitbit.