Once reserved for elite athletes, fitness trackers are now something anyone and everyone can benefit from, offering a wealth of wellness knowledge and data. In fact, the name may be somewhat of a misnomer. Sure, theyre great for keeping tabs on your workouts, but these days fitness trackers can do so much more, offering insight on sleep patterns, stress levels, calories burned the list goes on and on. Fitness trackers help you to quantify your output and take the guesswork out of what youve done, says Kealan Bailey, a founding trainer and VP of training and development for Rumble Boxing. And thats a great way to both keep you accountable,…