If you're guilty of bad posture, Lumo BodyTech might have the right device for you. This two part magnetic tab clips onto your clothing (the larger side goes inside your clothes, and you can choose which colour you'd like the little square to be). Throughout the day it monitors any curvature in your spine, and if you're slouching it sends you a little buzz that lets you know to straighten up. As with most of today's devices, all the data is gathered by an app you can view on your tablet or smartphone. The Lumo Lift can also count steps and act as an activity monitor.