German scientists are developing a smartwatch to correct bad posture. Engineers at TU Kaiserslautern and the German Research Centre for Artificial Intelligence are building a prototype of their vision, which would alert wearers to slouching. Using sensors worn under clothes and inside shoes, it would monitor angular velocity, which is the rate of change of angular position of a rotating body. It would then process this data against motion parameters, such as how much the spine moves and at what angle, then issue an alert if the posture was insufficiently upright. Using sensors worn under clothes and inside shoes, it would monitor angular velocity.