"With so many fitness trackers on the market, it's hard to know which one to choose. This year, Health staffers were sporting the Nike+ Fuelband ($150, <a href=""http://www.nike.com"" target=""_blank"">nike.com</a>). Running, dancing, walking down the street -- it's all measured by this sleek wristband and turned into ""NikeFuel,"" a points snapshot of how active you are. Got a competitive streak? You can share your score (and compare it with your friends') via social media like Facebook and Twitter."