Power consumption of the Inky Frames in deep sleep is minimal as power to the Pico is cut completely. An RTC is kept powered to wake up the Pico on a schedule, or pressing any button will wake up the board too.

Haven’t tested this particular one but using the badger eink display has been a blast. Super low power — you can run that one off of a lithium coin cell battery. You can control when it wakes. I presume this one will draw more with a larger color screen and wireless, but again you can control when and how it wakes to balance power draw vs. more frequent updates.