The best fitness tracker for women's health is more of a contentious topic than you'd think. There are just SO many different types of smart watches that track your fitness and tell you everything from your steps to your sleep cycle to your stress levels. Do you want a simple, accessible device to wear while you run? Do you want a stylish fitness watch you can wear full-time? Or, do you want to go all-out professional athlete watch and essentially wear a personal wellness assistant on your wrist?