I wrote an Android Wear app called Resistor Decoder. It lets you speak the color bands of a resistor into your Wear watch to get the resistance and tolerance value. The usage scenario is for someone who does electronics tinkering and ends up with a bunch of resistors lying on the table.
![Resistor Decoder logo](http://bob.igo.name/wp-content/uploads/2014/07/logo_512-300x300.png)