https://www.geeky-gadgets.com/sony-mobile-xperia-touch-projector-10-08-2017/
After previously unveiling their new interactive Xperia Touch projector earlier this year, Sony has now made it available to purchase allowing you to
sony mobiletouch projectorgeeky gadgetsxperiaavailable
https://www.cnx-software.com/2016/05/18/asu-cast-one-android-smartwatch-features-a-projector-and-touch-panel/?amp=1
Smartwatches and wearables in general have to main implementations for the user interfaces, either using a display and physical button, or a touch screen
android smartwatchasucastonefeatures