I just upgraded my Charge 5 to a Charge 6 with the hopes it would get rid of some of the bugs. All I did was trade old ones for new ones. My new Charge 6 won't track my temperature as part of my health metrics and hasn't tracked one zone minute since I started wearing it. The last time I contacted customer service it took 3 phone calls to follow up on the charge 5 they were replacing and a month without the tracker. I'm starting to think there has got to be a better company with a better product out there.
