SkinTrack Turns Your Arm Into a Touchpad. Here’s How It Works

The biggest problem with smartwatches, beyond the fact no one really knows what to do with them, is their small screens. Scrolling through text or swiping a notification is particularly frustrating when your finger obscures whatever it is you’re trying to see. This is why you can’t tap out a text message, let alone play games.

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Story added 13. May 2016, content source with full text you can find at link above.