Purchased this pedometer eleven months ago. I wear it almost every day. It's not only accurate, but it serves as a motivator to walk. I'm averaging 9.4 miles a day and have walked 2,524 miles in eleven months. I like the aerobic counting feature where you have to walk for 10 minutes without stopping to count as an aerobic walk. I've set a goal of 5,000 steps a day in aerobic mode and that keeps me walking steadily. No problems with the product at all. I just bought this next one for a friend.