Meet ALEX: a smart gadget that sits on your neck, with its legs on your ears, and helps you improve your posture. It vibrates to give you feedback. It tracks the angle of your neck and the position of your head, relative to your body.
ALEX has a 3-axis motion sensor, Bluetooth chip, vibration motor, and rechargeable battery. It has enough memory to retain posture data before syncing with the app. Yet another interesting Kickstarter project.