And these are not just running watches. They quantify your workout-to-work behavior in an all-encompassing way, tracking calories burned, how many steps you take, how many minutes you sit without getting up, and how many times a day you daydream about pizza. (Okay, I made that last one up, but it’ll probably be released next year.) The question is: Do wearers even know what the numbers mean? And if they do, will the quantification of their behavior help them live healthier, happier lives? We chatted with experts and those who’ve tried the tracking tools to gain some insight. See what the pros think with Well+GoodNYC’s How Effective Are Fitness And Movement Trackers?