This is my design for a portable computing platform using the Omega Onion as https://omega.io the IoT of choice.
This particular design was used for the rechargeable Arc Reactor Bracelet design in an earlier post.
Future plans include reducing the size by 20-30% and optimizing the power consumption.
With a 500mah lipo battery, this module will run for approximately 8+ hours on a full charge. (I actually recorded ~10 hours on the default OS build!)
The bracelet uses 5 Adafruit DotStar LEDs running two colors each at 50% brightness for 1:41:52 (almost two hours).
Again without software optimization for power usage.