My buddy Alex from Femtoduino.com has just started a Kickstarter campaign for mass producing the IMUduinoBTLE microcontroller used in this smart watch! The starter pledge is a crazy good price, and most of the amazing sensors and features of my watch come from this incredible board including all the bluetooth low energy capability! It's essentially an Arduino Leonardo in the tiniest form factor physically possible, and I can trust Alex and his devices 100%. If you need a microcontroller that's incredibly small, but still easily incorporated into advanced projects with a host of sensors and wireless communication, check out the Kickstarter!