Battery charging problems, inaccurate step counts, etc. Read here:
http://answers.microsoft.com/en-us/band/forum?tab=Threads
A lot of these bands are dying. I wonder how many thousands have been returned?
An example of what's being said in the Microsoft Band support site:
"I have seen similar threads and I may be beating a dead horse, but I'd like to see how many people are having this issue, so chime in please and lets see if we can get a hardware tech to jump in.
I AM ON MY 4TH MICROSOFT BAND 2!
I have had 3 exchanges now for the same issue. The band randomly shuts down when it is at full or near full power. I cannot get it to power up again unless its plugged into a charger. Then I get the same "You ran out of power" message other folks are getting. The people at the store just smile and hand me a brand new band, but never say they are seeing a problem like this. I suspect I'm just getting no
information."
And:
"Microsoft does not seem to be willing to even acknowledge this problem, let alone fix it. The deeper problem is that it appears that the device and updates were not tested (here's a link to the latest barrage of bugs from the update:
http://winsupersite.com/microsoft-band/bug-report-microsoft-band-v2).
It's disappointing that the company is treating this more like a public beta than a finished product, but such is life I suppose.
It also seems the only way to get any traction whatsoever is to call the company out publicly: Product reviews, review comment sections, and social media. Very few on here seem willing to do any or all of that, meanwhile development team members and Microsoft employees have been caught posting positive reviews. Nothing will change if people here do not turn up the volume."
I'm waiting awhile.......