I have used this pedometer for years. I would get about a year's service and accurate measurements. Most important, it has a clasp that is big enough to hold on my belt rather than falling off. Despite this, it is usually the clasp that fails, gets twisted, drops on the floor one to many times. If I could get a year's service, I was satisfied. But recently I replaced my pedometer. It was noisy (rattling as I walked) and significantly under-measured my steps. I returned it for replacement. Same problem. Sadly, I'm giving up on this brand.