Researchers at Carnegie Mellon University and ASU Tech have created a projector watch that turns your arm into a touchscreen. The LumiWatch display can be swiped and poked like a traditional touchscreen. If it eventually retails, the researchers estimate it would cost around $600.
The researchers presented their paper on the interface this week at the SIGCHI (Special Interest Group on Computer-Human Interaction) conference in Canada.
The smartwatch runs on Android 5.1 and can connect to Bluetooth and Wi-Fi. It features a Qualcomm 1.2 GHz quad-core CPU, 768MB of RAM, 4GB of flash memory and a 740 mAh lithium-ion battery.
The prototype watch measures about 2 inches by 1.6 inches by 0.66 inches (50 millimeters by 41 millimeters by 17 millimeters).
In a video posted this week, the LumiWatch prototype is shown in action, with users swiping and tapping colorful projected images on their arms. The users also demonstrate continuous 2D finger-tracking capabilities.