If the Due is anything like the Uno
Well since the Due is absolutely nothing like the Uno, this is probably a bad comparison.
The chip used on the Due is a completely different architecture running at a different clock rate, based on a board with switching regulators instead of linear regulators.
So no, it is nothing like the Uno.
Thanks caption obvious! I'm fully aware that the microcontrollers are different.
What I was talking about was how Arduino
designs their boards, not the microcontroller. Arduinos are not designed to be ultra low power. That's what I was referring to. If the Arduino Due (minus the microcontroller) is similar to the Arduino Uno (minus the microcontroller), then expect it to consume lots of power while doing absolutely nothing. I know they're not the same (even minus the microcontroller) but the design goal of Arduino systems are not low power.
My point is if you want a battery powered system, choosing an Arduino product is probably not the best idea. The Teensy line is far better for this purpose, and in a size that typically works a lot better in a battery solution.
But, thanks for letting me know that the Due is different than the Uno. I figured they were IDENTICAL in every way.