Meet the ORB Smartguard: a smart mouth guard that can monitor head impact, movement, and heart rate to enable contact and combat sport athletes to practice and compete safely. ORB Smartguard captures your heart rate, zones, averages and ranges. It also tracks the range of forces you have experienced.
This mouth guard connects to your smartphone via Bluetooth. The ORB app shows your trends and metrics over time as well as your heart rate. You will also be able to see average calories per session, impact location zones, movement intensity, and a whole lot more.[where to find it]