Jawbone announces UP24, a fitness tracker that pushes you to go the extra mile

If you want an easy way to track your steps, to make sure you’re meeting an activity baseline every day, your options are effectively limitless — from Nike to Fitbit to a litany of Kickstarter projects, fitness trackers are everywhere. Jawbone, one of the earliest entrants into the field, is trying to take things to the next step: not just telling you how you’re doing, but giving you tangible, achievable ways to do better tomorrow. That’s what Up24, the company’s newest wristband, is all about.