Meet the SnapSync Band-1: an open source gesture control smartwatch that you can use to easily interact with your connected home devices and smartphones. It can detect various hand gestures, such as double tapping of two fingers and clapping. It has an app that integrates with Google Home, HomeKit, and IFTTT.
The Band-1 can also be used as a health tracking device. You can use it to track your sleep or measure your blood oxygen. It is easy to disassemble and repair. Its app lets you set up gestures. 5 predefined gestures are available but you can always train your own. This gadget will have a public API for developers. A list of parts used to build this is provided, so you will have an easier time making repairs.[where to get it]