I have been having problems wiith it not counting steps. I was told by support that I probably had it positioned incorrectly and they suggested putting it on my shoe. I assumed they were not going to offer a replacement. I took the battery out, shook it until I felt better, put the battery back, and it seems fine now. It does stop counting steps occasionally but if I move it around it starts back up. It's just too much work to keep watching it to see if the steps are being counted. Good luck.