Misleading half truths? Ok here it is in a nutshell. They offered to send me a replacement band bc the heart rate sensor wasn't working properly, but after receiving it, the new band's hr was just as inaccurate (at times). As a result, I decided not to send my other one back and they charged me $200 for it. At the end of the day, they charged me $200 for that one. I own both of them and have every right to do whatever I want with it. I didn't even want a replacement... they offered it to me as a solution to address their mediocre heart rate sensor.
As for if I am sure I didn't bang it on anything. No, I'm not sure. I use this when weight training, so sure, it may have hit the side of a machine during normal use. If this device can't hold up at the gym, then god help Microsoft because they are going to have some serious issues. It didn't leave my arm since the night before and there is obviously no physical damage.