Meet the Lumo Lift: a smart posture and activity tracker that helps you shed your bad habits and maintain proper posture all day long. In fact, it can track posture, steps, distance, and calories burned. The device vibrates to remind you to sit straight and stand tall. It syncs with your iOS device and shows your progress on your mobile device.
The Lumo Lift has a LED that displays syncing and battery level. It is highly resistant and has a rechargeable battery. Sets you back under $100.