Operating smart devices from the space on and above the back of your hand
▻https://www.sciencedaily.com/releases/2017/05/170503110802.htm
Smartwatches such as the Apple Watch have been called a ’revolution on the wrist’, but the operation of these devices is complicated, because the screen is small. Researchers have therefore developed a novel input method that expands the input space to the back of the hand and the 3-D space above the back of the hand wearing the watch.