Fine. You didn't buy a smartwatch. You were never going to anyway. Meet the fitness tracker: a less expensive, more immediately useful tech product that might actually help get your lazy self in shape. Designed to gamify your daily exercise routines, fitness trackers make people do funny, crazy things, like going to sleep at the same minute every night, or taking the long route to the bathroom, just to get in another 20 steps. But hurry! You've got two more weeks until all that New Year's resolution spirit turns into another pack of peanut M&Ms.