Inaccurate
I bought two of these for my sons for Christmas and is a case of you get what you pay for. One worked fairly well for a little while, but the other never counted steps while moving, but would seem to count when held still. The instructions were likely shredded by excited boys, but even with trial and error, it didn't seem I could ever get it to set correctly. Size was good, but they have been tossed aside due to inaccuracies and difficulty setting/resetting.
Rating: 2 stars