You can get them off Aliexpress or Banggood for <$60. When it arrives just set up the Arduino IDE, Clone the repo, copy the AWatch folder into your Arduino proj

You can get them off Aliexpress or Banggood for <$60. When it arrives just set up the Arduino IDE, Clone the repo, copy the AWatch folder into your Arduino project directory, install the libraries referenced in the repo, connect it over USB and hit upload. They're interesting bits of hardware and worth playing with. The sample code on which the phone was originally based is quite... convoluted for what it is. I'm going to spend some more time playing with FreeRTOS and seeing if I can build something a bit more professional after looking at the Rebble code.