Forget Fitness: 2014 Was the Year of the Lifestyle Tracker

Like conventional fitness trackers, the Milestone Pod ($25) records running and walking data like distance, pace, steps, and calories. But it also goes one step further: the Milestone is made for runners and tracks when it's time to replace a running shoe, tells you exactly what your footstrike is, and offers guidance on how changing cadence can improve your pace. Think of it as a running coach that fits on your shoe.