This TinyScreen Smart Watch Kit lets you build and customize your own SmartWatch that can connect with your Android or Apple device. The watch can be configured to use several different watch faces and can use Bluetooth 4 (also known as Bluetooth Low Energy and Bluetooth Smart) to communicate with your smartphone (Android 4.3+ and iOS 7+).
The 3D design files are provided free of charge and are open source, so you can modify them to make your own custom watch enclosure, or print them on your 3D printer (note - these files are designed for a commercial dual-head 3D printer, so it may likely not print nicely on a consumer-level single head printer).
