Pebble

Yes, 30 days for manufacturer defects.

Eric self-funded Core Devices and likely doesn't want to take on what would effectively be personal liability. So I presume it will always be 30 days unless they get more leverage with their manufacturing contract (e.g. larger volumes)

Edit: Or I suppose if they earn back the initial investment and become fully sustainable, then maybe they'd be able to extend warranty and eat that cost themselves