The research team at Carnegie Mellon University has made some impressive technological breakthrough that may help you extend the way you use your smartwatch. Instead of just using the screen, you can now use your arm as an extended screen or control surface for your smartwatch.
Known as Skintrack, the technology turns your skin and arm into a touch interface for your smartwatch, freeing up the little display to show more useful information. Not only you can use the skin as an external display, it can be used as controls or even shortcuts for apps on your smartwatch as well.
It is still a beta technology, and there is no plans for any commercialisation as yet, but who knows we will see this technology in the near future and we can see better smartwatch control user interfaces soon.
[Source]
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