One of the main aspects of wearables is the aesthetics. I wanted to know how well the power harvesting module would fit in one of the rings which I have in mind, so I 3d designed all the components respecting the measures. Here are the renders:

The power harvesting module is in the yellow flex board, with the two solar cells on the left and four supercapacitors on the right. The rest of components are 3 RGB leds and a microcontroller with some more circuits that I will explain in to my smart ring project page.

Here is with a plastic shell, three diffusers for the LEDs and two holes for the solar cells.