8 Bluetooth 4.0 Fitness Gadgets

As a busy desk-dweller, your posture probably isn’t the first thing on your mind. Good thing the LUMOback posture belt can tell you whether you’re sitting up straight or slouching your way to a sore back. Strap the belt around your lower back and load the LUMOback app onto your iOS-enabled device. From there, LUMOback monitors your body positioning while sitting, standing, walking, running, and sleeping. But don’t worry, you don’t have to stare at the app all day to know whether you're sitting or standing up straight. The belt gently vibrates to let you know when your posture is less than perfect. ($149, LUMOback.com)