Summary: Sport watches have come a long way from just telling time and nagging you about your step count. These days, they’re basically tiny personal trainers, health gurus, and life coaches strapped to your wrist. They track everything from how well you slept (or didn’t) to how stressed you are when you're stuck in traffic. Some can even remind you to drink water or yell at you (nicely) to get moving.
If you think your watch is just a fancy stopwatch, think again — here are 15 awesome features you probably didn’t even know your sport watch could pull off.