As someone who’s worked on both embedded and Linux-based smartwatch firmware, yeah it’s mostly battery life. The nice part about developing for a lower power mi

As someone who’s worked on both embedded and Linux-based smartwatch firmware, yeah it’s mostly battery life. The nice part about developing for a lower power microcontroller is that you can basically aim to squeeze as much performance out of the chip as possible, and the power draw will still end up pretty good. On Linux devices, you need to an architecture early on for how you’re not going to blow your power budget immediately. Even stuff like entering/exiting suspend can be problematic in how many Joules it takes.